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Versions: 00

Transport Working Group                                         P. Heist
Internet-Draft                                               R.W. Grimes
Intended status: Informational                                 J. Morton
Expires: 4 January 2020                                      3 July 2019


           Some Congestion Experienced One and Two-Flow Tests
            draft-heist-tsvwg-sce-one-and-two-flow-tests-00

Abstract

   This note presents one and two-flow test results for the SCE (Some
   Congestion Experienced) reference implementation.  These tests are
   not intended to be a comprehensive real-world evaluation of SCE, but
   an illustration of SCE's influence on basic TCP metrics in a
   controlled environment.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

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   This Internet-Draft will expire on 4 January 2020.

Copyright Notice

   Copyright (c) 2019 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents (https://trustee.ietf.org/
   license-info) in effect on the date of publication of this document.
   Please review these documents carefully, as they describe your rights
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   as described in Section 4.e of the Trust Legal Provisions and are
   provided without warranty as described in the Simplified BSD License.




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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Test Tools and Environment  . . . . . . . . . . . . . . . . .   3
   4.  Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . .   4
   5.  Results and Analysis  . . . . . . . . . . . . . . . . . . . .   4
     5.1.  One-Flow Tests  . . . . . . . . . . . . . . . . . . . . .   4
       5.1.1.  Reno-SCE TCP Throughput . . . . . . . . . . . . . . .   5
       5.1.2.  Reno-SCE TCP RTT  . . . . . . . . . . . . . . . . . .   6
       5.1.3.  DCTCP-SCE TCP Throughput  . . . . . . . . . . . . . .   7
       5.1.4.  DCTCP-SCE TCP RTT . . . . . . . . . . . . . . . . . .   8
     5.2.  Two-Flow Tests  . . . . . . . . . . . . . . . . . . . . .   9
       5.2.1.  Single Queue (Cake "flowblind") . . . . . . . . . . .   9
       5.2.2.  Single Queue (Cake "sce-single")  . . . . . . . . . .  11
       5.2.3.  Fair Queue (Cake "triple-isolate")  . . . . . . . . .  13
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .  15
   7.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  15
   8.  Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .  15
   9.  Informative References  . . . . . . . . . . . . . . . . . . .  15
   Appendix A.  Appendix (Raw Results Tables)  . . . . . . . . . . .  15
     A.1.  One-Flow TCP Throughput . . . . . . . . . . . . . . . . .  16
     A.2.  One-Flow TCP RTT  . . . . . . . . . . . . . . . . . . . .  18
     A.3.  Two-Flow TCP Throughput (Cake "flowblind")  . . . . . . .  21
     A.4.  Two-Flow TCP Throughput (Cake "flowblind
           sce-single")  . . . . . . . . . . . . . . . . . . . . . .  28
     A.5.  Two-Flow TCP Throughput (Cake "triple-isolate") . . . . .  36
     A.6.  Two-Flow TCP RTT (Cake "flowblind") . . . . . . . . . . .  43
     A.7.  Two-Flow TCP RTT (Cake "flowblind sce-single")  . . . . .  50
     A.8.  Two-Flow TCP RTT (Cake "triple-isolate")  . . . . . . . .  58
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  65

1.  Introduction

   SCE provides early and proportional feedback to the CC (congestion
   control) algorithms for transport protocols, including but not
   limited to TCP.  The [sce-repo] is a Linux kernel modified to support
   SCE, including:

   *  Enhancements to Linux's Cake (Common Applications Kept Enhanced)
      AQM to support SCE signaling

   *  Modifications to the TCP receive path to reflect SCE signals back
      to the sender

   *  The addition of three new TCP CC algorithms that modify the
      originals to add SCE support: Reno-SCE, DCTCP-SCE and Cubic-SCE
      (work in progress as of this writing)



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   In this note we run one and two-flow TCP tests across a range of
   simulated path bandwidths and RTTs.  One-flow tests measure SCE's
   impact on TCP throughput and TCP RTT.  Two-flow tests evaluate
   fairness between and among several SCE and non-SCE TCP
   implementations, while making several adjustments to Cake's SCE and
   fair queueing parameters.

   It is recognized that these tests do not simulate real-world
   conditions, and will not be an indication of how SCE will perform in
   all situations.  However, they serve as fundamental tests for the SCE
   reference implementation.  Once the behavior in these tests is well
   understood and theory and experiment are in agreement, additional
   complexity can be added to the test procedures with the confidence
   that the reference implementation's fundamentals are sound.

2.  Terminology

   The following terminology is used in this document:

   *  Path Bandwidth or Cake-limited Bandwidth: The available bandwidth
      between the sender and receiver, as controlled by Cake on the
      middlebox, and set by Cake's bandwidth parameter.

   *  Path RTT or just RTT (in context): The approximate minimum round-
      trip time of packets that go from the sender to receiver and back
      when the path is unloaded.

   *  Netem bi-directional delay: The total path RTT added by netem in
      both directions.

   *  TCP throughput and TCP RTT: Well-known terms that apply
      specifically to the flows under test.

3.  Test Tools and Environment

   The [Flent] tool is used for all tests.  Flent uses netperf for its
   TCP tests, and allows for test batches, plotting, the recording of
   results and the collection of metadata in JSON format [RFC8259].
   Flent both captures the measured TCP throughput from netperf, and
   simultaneously uses the [ss] tool in Linux to passively monitor TCP
   RTT.

   All tests are performed using a three node dumbbell topology:

     +--------+              +-----------+              +----------+
     | Sender |--------------| Middlebox |--------------| Receiver |
     +--------+              +-----------+              +----------+




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                          Figure 1: Test topology

   *  Sender: Runs Flent and sends data to the receiver

   *  Middlebox:

      -  Acts as a router between the sender and receiver

      -  Runs Cake on egress of both interfaces for queue management and
         SCE signaling

      -  Runs netem on the ingress of both interfaces for delay
         simulation, splitting the total delay in half for each
         interface

   *  Receiver: Receives data from and reflects SCE signals back to the
      sender via the ESCE (Echo Some Congestion Experienced) bit

   All nodes run the SCE reference implementation kernel as of commit
   56915a82 (2019-06-20), and are connected directly via Gigabit
   Ethernet.

4.  Tests

   The tests are implemented with a Flent batch file to drive netperf
   and re-configure Cake and netem on the middlebox with various
   parameters.  Scripts post-process the results and create csv and
   markdown tables for external use, including by this document.

   Unless otherwise mentioned, measurements are obtained from TCP flows
   from start to finish, not at steady state.  This allows for some
   discussion of the differences in TCP CC algorithm behavior during
   slow start and congestion avoidance.  Typically, each test is run
   long enough to obtain a reasonable approximation of steady state
   throughput, but in a few high BDP cases slow start accounts for a
   significant portion of the test length.  When relevant to the
   analysis of the results, this is stated in the text.

5.  Results and Analysis

5.1.  One-Flow Tests

   The goal of the one-flow tests is to analyze the impact of SCE on the
   TCP throughput and TCP RTT of single TCP flows across a range of
   simulated path bandwidths and RTTs.  What follows is an analysis of
   the results.  See Section a.1 and Section a.2 for the raw results for
   TCP throughput and TCP RTT, respectively.




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5.1.1.  Reno-SCE TCP Throughput

   The following table shows the difference in TCP throughput for Reno-
   SCE vs Reno across the tested range of simulated path bandwidths and
   RTTs:

   +---+-----+------+------+-------+--------+--------+--------+--------+
   |   |    0|     2|     5|     10|     20 |     40 |     80 |    160 |
   +===+=====+======+======+=======+========+========+========+========+
   |0.5|0.000| 0.000| 0.000|  0.000|  0.000 | -0.100 | -0.180 | -0.160 |
   +---+-----+------+------+-------+--------+--------+--------+--------+
   |1  |0.000| 0.000| 0.000|  0.000| -0.110 | -0.210 | -0.280 | -0.280 |
   +---+-----+------+------+-------+--------+--------+--------+--------+
   |2  |0.000| 0.000|-0.010| -0.120| -0.210 | -0.375 | -0.370 | -0.405 |
   +---+-----+------+------+-------+--------+--------+--------+--------+
   |5  |0.000|-0.052|-0.142| -0.228| -0.178 | -0.032 | -0.006 |  0.016 |
   +---+-----+------+------+-------+--------+--------+--------+--------+
   |10 |0.000|-0.071|-0.139| -0.143| -0.046 |  0.062 |  0.116 |  0.168 |
   +---+-----+------+------+-------+--------+--------+--------+--------+
   |25 |0.000|-0.003|-0.006|  0.010|  0.073 |  0.143 |  0.196 |  0.259 |
   +---+-----+------+------+-------+--------+--------+--------+--------+
   |50 |0.000| 0.000| 0.001|  0.029|  0.102 |  0.169 |  0.235 |  0.272 |
   +---+-----+------+------+-------+--------+--------+--------+--------+
   |100|0.000| 0.000| 0.004|  0.043|  0.103 |  0.215 |  0.238 |  0.289 |
   +---+-----+------+------+-------+--------+--------+--------+--------+

          Table 1: Difference in TCP Throughput (reno-sce - reno),
         normalized to Cake- limited Bandwidth; Columns: netem bi-
        directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)

   From the above TCP throughput differences we can observe:

   1.  Improved utilization for SCE at sufficiently high BDPs.  This is
       due to SCE's proportional congestion signals, which can
       significantly reduce the classic Reno throughput sawtooth by
       making drops or CE marks rare to non-existent.  The utilization
       improvement increases with BDP largely because the TCP window
       recovery time after a drop or CE mark increases with BDP,
       deepening the sawtooth.

   2.  Significant under-utilization at bandwidths <= 10Mbit, which
       tends to worsen as path RTT increases.  Investigation is underway
       as to the source of this.  These drops in utilization are however
       also accompanied by drops in TCP RTT (see below).







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5.1.2.  Reno-SCE TCP RTT

   The following table shows the difference in TCP RTT for Reno-SCE vs
   Reno across the tested range of simulated path bandwidths and RTTs:

   +---+------+------+------+------+--------+--------+--------+--------+
   |   |     0|     2|     5|    10|     20 |     40 |     80 |    160 |
   +===+======+======+======+======+========+========+========+========+
   |0.5|-88.41|-87.51|-88.43|-88.59| -62.37 | -52.56 | -42.23 | -31.93 |
   +---+------+------+------+------+--------+--------+--------+--------+
   |1  |-42.30|-41.94|-42.65|-33.03| -32.92 | -27.92 | -19.13 | -13.20 |
   +---+------+------+------+------+--------+--------+--------+--------+
   |2  |-29.09|-27.67|-22.19|-19.23| -14.54 | -10.12 |  -3.66 |  -1.50 |
   +---+------+------+------+------+--------+--------+--------+--------+
   |5  | -9.18| -9.47| -7.51| -8.37|  -5.63 |  -3.49 |  -1.69 |  -1.24 |
   +---+------+------+------+------+--------+--------+--------+--------+
   |10 | -2.46| -2.75| -2.95| -3.91|  -2.44 |  -1.42 |  -0.54 |  -0.41 |
   +---+------+------+------+------+--------+--------+--------+--------+
   |25 | -1.87| -2.09| -2.53| -1.74|  -0.42 |   0.01 |   0.19 |  -0.01 |
   +---+------+------+------+------+--------+--------+--------+--------+
   |50 | -2.00| -2.18| -1.48| -0.31|   0.59 |   0.98 |   0.86 |   0.57 |
   +---+------+------+------+------+--------+--------+--------+--------+
   |100| -1.87| -1.67| -1.04|  0.06|   0.95 |   1.42 |   1.41 |   1.15 |
   +---+------+------+------+------+--------+--------+--------+--------+

    Table 2: Difference in TCP RTT (reno-sce - reno); Columns: netem bi-
        directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)

   From the above TCP RTT differences we can observe:

   1.  Significant reductions in TCP RTT for Reno-SCE at most BDPs.
       SCE's proportional congestion signals are aiding the sender in
       managing queue lengths.

   2.  Greater reductions in TCP RTT at lower path bandwidths and RTTs.
       This is because Reno-linear growth becomes relatively larger as
       the path bandwidth decreases.  This results in greater queue
       growth in the interval before AQM activates, and a subsequently
       longer drain time after congestion is signaled.

   3.  A slight increase in TCP RTT for SCE at high BDPs.  This has been
       observed to have a possible connection to the ESCE (Echo Some
       Congestion Experienced) feedback strategy implemented in on the
       TCP receive side.  Research and optimization in this area is
       ongoing.






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5.1.3.  DCTCP-SCE TCP Throughput

   The following table shows the difference in TCP throughput for DCTCP-
   SCE vs DCTCP across the tested range of simulated path bandwidths and
   RTTs:

   +---+------+------+------+------+--------+--------+--------+--------+
   |   |     0|     2|     5|    10|     20 |     40 |     80 |    160 |
   +===+======+======+======+======+========+========+========+========+
   |0.5| 0.000| 0.000| 0.000| 0.000|  0.000 | -0.120 | -0.220 | -0.400 |
   +---+------+------+------+------+--------+--------+--------+--------+
   |1  | 0.000| 0.000| 0.000| 0.000| -0.120 | -0.260 | -0.420 | -0.570 |
   +---+------+------+------+------+--------+--------+--------+--------+
   |2  | 0.000| 0.000|-0.015|-0.130| -0.285 | -0.505 | -0.565 | -0.705 |
   +---+------+------+------+------+--------+--------+--------+--------+
   |5  | 0.000|-0.038|-0.150|-0.270| -0.374 | -0.588 | -0.652 | -0.620 |
   +---+------+------+------+------+--------+--------+--------+--------+
   |10 | 0.000|-0.087|-0.197|-0.265| -0.266 | -0.257 | -0.271 | -0.134 |
   +---+------+------+------+------+--------+--------+--------+--------+
   |25 |-0.006|-0.060|-0.131|-0.167| -0.154 | -0.133 | -0.067 |  0.110 |
   +---+------+------+------+------+--------+--------+--------+--------+
   |50 | 0.000|-0.001|-0.006|-0.008|  0.005 |  0.012 |  0.143 |  0.180 |
   +---+------+------+------+------+--------+--------+--------+--------+
   |100| 0.000| 0.007| 0.018| 0.031|  0.040 |  0.087 |  0.151 |  0.246 |
   +---+------+------+------+------+--------+--------+--------+--------+

         Table 3: Difference in TCP Throughput (dctcp-sce - dctcp),
         normalized to Cake- limited Bandwidth; Columns: netem bi-
        directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)

   From the above TCP throughput differences we can observe:

   1.  Improved utilization for SCE at higher BDPs.  At first glance we
       might assume that this is due to SCE's feedback signals improving
       upon DCTCP's window recovery time, as with Reno, but another
       significant part of this increase is due to DCTCP-SCE's steeper
       ramp during slow start, and a test length that is short relative
       to the time spent in slow start.  The test is 300 seconds long,
       and at a path bandwidth of 100Mbit and RTT of 160ms, DCTCP takes
       a full 225 seconds to ramp up to the BDP, while DCTCP-SCE, with
       its steeper ramp, takes only 80 seconds.  That said, steady state
       throughput at this BDP is around 87Mbit for DCTCP, and around
       96Mbit for DCTCP-SCE, an increase of around 10%, so the
       proportional congestion control signals also play a part in
       increasing utilization.

   2.  Significant under-utilization at bandwidths <= 25Mbit, which
       tends to worsen as path RTT increases.  Investigation is underway



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       as to the source of this.  These drops in utilization are however
       also accompanied by drops in TCP RTT (see below).

5.1.4.  DCTCP-SCE TCP RTT

   The following table shows the difference in TCP RTT for DCTCP-SCE vs
   DCTCP across the tested range of simulated path bandwidths and RTTs:

   +---+------+------+------+------+--------+--------+--------+--------+
   |   |     0|     2|     5|    10|     20 |     40 |     80 |    160 |
   +===+======+======+======+======+========+========+========+========+
   |0.5|-82.57|-81.21|-81.37|-81.53| -60.53 | -70.29 | -74.76 | -54.33 |
   +---+------+------+------+------+--------+--------+--------+--------+
   |1  |-41.78|-42.31|-40.43|-30.98| -35.26 | -39.27 | -29.95 | -15.62 |
   +---+------+------+------+------+--------+--------+--------+--------+
   |2  |-21.94|-20.29|-20.86|-17.58| -19.93 | -12.70 |  -7.37 |  -3.97 |
   +---+------+------+------+------+--------+--------+--------+--------+
   |5  | -6.65| -7.27| -7.08| -6.45|  -5.57 |  -3.59 |  -2.19 |  -1.31 |
   +---+------+------+------+------+--------+--------+--------+--------+
   |10 | -1.85| -2.11| -2.85| -2.25|  -2.16 |  -1.51 |  -1.28 |  -1.12 |
   +---+------+------+------+------+--------+--------+--------+--------+
   |25 | -2.47| -2.52| -2.94| -3.13|  -2.93 |  -1.63 |  -0.98 |  -0.78 |
   +---+------+------+------+------+--------+--------+--------+--------+
   |50 | -2.63| -3.15| -2.99| -3.12|  -3.37 |  -3.57 |  -0.81 |  -0.63 |
   +---+------+------+------+------+--------+--------+--------+--------+
   |100| -2.79| -2.81| -2.82| -3.01|  -3.26 |  -2.52 |  -0.14 |   0.02 |
   +---+------+------+------+------+--------+--------+--------+--------+

        Table 4: Difference in TCP RTT (dctcp-sce - dctcp); Columns:
       netem bi- directional Delay (ms); Rows: Cake-limited Bandwidth
                                   (Mbit)

   From the above TCP RTT differences we can observe:

   1.  A nearly across the board reduction in TCP RTT for DCTCP-SCE.
       SCE's proportional congestion signals are aiding the sender in
       managing queue lengths.

   2.  Greater reductions in TCP RTT at lower bandwidths and path RTTs.
       See Section 5.1.2 for an explanation of this.

   3.  A slight increase in TCP RTT for DCTCP-SCE at 100Mbit / 160ms.
       See Section 5.1.2 for a likely explanation of this.








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5.2.  Two-Flow Tests

   The goal of the two-flow tests is to measure fairness between and
   among SCE and non-SCE TCP flows, through either a single queue or
   with fair queueing.  What follows is a partial analysis of the
   results, and see Section a.3 through Section a.8 for the raw results
   tables.

5.2.1.  Single Queue (Cake "flowblind")

   Cake's flowblind parameter disables fair queueing, so that Cake uses
   only a single queue.  This can be used to evaluate single-queue
   throughput fairness between SCE and non-SCE flows.

5.2.1.1.  Reno vs Reno

   It might be useful to remind ourselves that competition between two
   (or more) flows of the same TCP CC algorithm is usually designed to
   yield a high degree of throughput fairness in a single queue.
   Looking at Jain's fairness index [RFC5166] for two flows across a
   range of simulated path bandwidths and RTTs shows this to be true for
   two TCP Reno flows, for example:

                  +-----+-------+-------+-------+-------+
                  |     | 0     | 10    | 20    | 80    |
                  +=====+=======+=======+=======+=======+
                  | 1   | 0.993 | 1.000 | 1.000 | 0.998 |
                  +-----+-------+-------+-------+-------+
                  | 5   | 1.000 | 1.000 | 0.998 | 0.998 |
                  +-----+-------+-------+-------+-------+
                  | 10  | 1.000 | 0.999 | 0.998 | 1.000 |
                  +-----+-------+-------+-------+-------+
                  | 50  | 1.000 | 0.998 | 0.999 | 0.999 |
                  +-----+-------+-------+-------+-------+
                  | 100 | 0.998 | 0.999 | 0.999 | 1.000 |
                  +-----+-------+-------+-------+-------+

                        Table 5: reno vs reno Jain's
                     fairness index; Columns: netem bi-
                         dir Delay (ms); Rows: Cake
                              Bandwidth (Mbit)

5.2.1.2.  Reno vs Reno-SCE

   Now, we do a comparison of Reno vs Reno-SCE in a single queue, while
   still using Cake's default SCE signaling ramp:





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                  +-----+-------+-------+-------+-------+
                  |     | 0     | 10    | 20    | 80    |
                  +=====+=======+=======+=======+=======+
                  | 1   | 0.969 | 0.969 | 0.915 | 0.821 |
                  +-----+-------+-------+-------+-------+
                  | 5   | 0.958 | 0.824 | 0.714 | 0.632 |
                  +-----+-------+-------+-------+-------+
                  | 10  | 0.959 | 0.719 | 0.669 | 0.698 |
                  +-----+-------+-------+-------+-------+
                  | 50  | 0.608 | 0.621 | 0.673 | 0.907 |
                  +-----+-------+-------+-------+-------+
                  | 100 | 0.560 | 0.627 | 0.668 | 0.782 |
                  +-----+-------+-------+-------+-------+

                      Table 6: reno vs reno-sce Jain's
                     fairness index; Columns: netem bi-
                         dir Delay (ms); Rows: Cake
                              Bandwidth (Mbit)

   From the above Jain's fairness index numbers we can observe that
   while there can be reasonable fairness at very low BDPs, and while
   there is no starvation, fairness degrades quickly at higher
   throughputs and RTTs.  This is due to the Cake's default SCE
   signaling ramp being tuned to provide an early signal of congestion,
   to avoid CE marks and packet drops.  As a result, SCE enabled flows
   back off in the face of competition, whereas non-SCE flows fill the
   queue until a drop or CE mark occurs.

5.2.1.3.  Cubic vs DCTCP-SCE

   Of particular interest to the congestion control community is
   competition between the commonly used TCP Cubic algorithm and DCTCP-
   SCE.  It is a well-established fact that classic DCTCP will typically
   out-compete Cubic in a single queue.  It would be valuable if there
   were a way to improve that fairness with SCE.

   When comparing Cubic vs DCTCP-SCE using Cake's default SCE signaling
   ramp, we can see that while there is no starvation, fairness does
   degrade fairly rapidly as BDP increases:












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                  +-----+-------+-------+-------+-------+
                  |     | 0     | 10    | 20    | 80    |
                  +=====+=======+=======+=======+=======+
                  | 1   | 0.979 | 0.976 | 0.922 | 0.821 |
                  +-----+-------+-------+-------+-------+
                  | 5   | 0.977 | 0.797 | 0.708 | 0.604 |
                  +-----+-------+-------+-------+-------+
                  | 10  | 0.979 | 0.693 | 0.645 | 0.627 |
                  +-----+-------+-------+-------+-------+
                  | 50  | 0.599 | 0.570 | 0.586 | 0.607 |
                  +-----+-------+-------+-------+-------+
                  | 100 | 0.547 | 0.552 | 0.563 | 0.599 |
                  +-----+-------+-------+-------+-------+

                     Table 7: cubic vs dctcp-sce Jain's
                     fairness index; Columns: netem bi-
                         dir Delay (ms); Rows: Cake
                              Bandwidth (Mbit)

   As of today, SCE by default does not lead to fairness at all BDPs
   between SCE and non-SCE flows.  However, efforts are ongoing to
   improve this, and as we can see in Section 5.2.2, Cake's signaling
   ramp can be tuned to improve this fairness.

5.2.2.  Single Queue (Cake "sce-single")

   As we saw in Section 5.2.1, there is room to improve SCE vs non-SCE
   fairness in a single queue.  One way to do this is to change the SCE
   signaling ramp to reduce or delay SCE signals until closer to the
   point where CE signals occur.  This is the motivation behind the sce-
   single and sce-thresh Cake parameters.

   By default, Cake begins proportionally signaling SCE when a packet's
   sojourn time in the queue is greater than half the CoDel target, and
   reaches 100% SCE signaling when the sojourn time is greater than or
   equal to the CoDel target.  The sce-single parameter delays the start
   of the ramp until the sojourn reaches the CoDel target itself, while
   keeping the ramp slope the same.  The sce-thresh parameter, while not
   evaluated here, allows an intermediate ramp between the default and
   sce-single, using values from 2-1024, with sce-thresh set to 8
   yielding a ramp that's halfway in-between.

   It is expected that the result of signaling SCE later is a subsequent
   increase in TCP RTT, including for single flows.  Thus, the
   adjustment of the SCE signaling ramp is a tradeoff between the
   increased utilization and reduced TCP RTT possible with SCE, and
   fairness with non-SCE flows in a single queue.  By using sce-single,




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   we can show the maximum fairness that can be achieved by tuning the
   SCE signaling ramp in this way.

5.2.2.1.  Reno vs Reno-SCE

   Revisiting the Reno vs Reno-SCE comparison that we did in
   Section 5.2.1.2, we now run the same test with Cake's sce-single
   parameter set:

                  +-----+-------+-------+-------+-------+
                  |     | 0     | 10    | 20    | 80    |
                  +=====+=======+=======+=======+=======+
                  | 1   | 1.000 | 0.998 | 1.000 | 0.987 |
                  +-----+-------+-------+-------+-------+
                  | 5   | 0.997 | 0.952 | 0.785 | 0.819 |
                  +-----+-------+-------+-------+-------+
                  | 10  | 0.997 | 0.950 | 0.790 | 0.994 |
                  +-----+-------+-------+-------+-------+
                  | 50  | 1.000 | 0.986 | 0.980 | 0.977 |
                  +-----+-------+-------+-------+-------+
                  | 100 | 0.988 | 0.901 | 0.932 | 0.987 |
                  +-----+-------+-------+-------+-------+

                      Table 8: reno vs reno-sce Jain's
                     fairness index; Columns: netem bi-
                         dir Delay (ms); Rows: Cake
                              Bandwidth (Mbit)

   We can see that single queue fairness has improved considerably.
   While there are results at a few bandwidth-delay combinations that
   are still under investigation, single queue fairness between Reno and
   Reno-SCE has largely been achieved.

5.2.2.2.  Cubic vs DCTCP-SCE

   Revisiting the Cubic vs DCTCP-SCE comparison that we did in
   Section 5.2.1.3, we now run the same test with Cake's sce-single
   parameter set:













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                  +-----+-------+-------+-------+-------+
                  |     | 0     | 10    | 20    | 80    |
                  +=====+=======+=======+=======+=======+
                  | 1   | 0.993 | 0.999 | 0.995 | 0.963 |
                  +-----+-------+-------+-------+-------+
                  | 5   | 1.000 | 0.898 | 0.765 | 0.741 |
                  +-----+-------+-------+-------+-------+
                  | 10  | 0.975 | 0.893 | 0.733 | 0.885 |
                  +-----+-------+-------+-------+-------+
                  | 50  | 0.999 | 0.752 | 0.799 | 0.923 |
                  +-----+-------+-------+-------+-------+
                  | 100 | 0.944 | 0.714 | 0.661 | 0.650 |
                  +-----+-------+-------+-------+-------+

                     Table 9: cubic vs dctcp-sce Jain's
                     fairness index; Columns: netem bi-
                         dir Delay (ms); Rows: Cake
                              Bandwidth (Mbit)

   While it can be seen that there is an almost across the board
   improvement vs Cake's default SCE ramp, there are still bandwidth-
   delay combinations that do not yield a sufficient level of fairness
   in a single queue.  Work is ongoing to improve this.

5.2.3.  Fair Queue (Cake "triple-isolate")

   Cake's default triple-isolate fairness mode provides fairness among
   flows and a combination of source and destination IP addresses.  For
   our purposes, this will effectively serve as fair queueing among
   flows, as we are only using one IP on each of the source and
   destination hosts.

   With fair queueing, we expect to achieve a high level of throughput
   fairness at most bandwidth-delay combinations.

5.2.3.1.  Cubic vs DCTCP-SCE

   Revisiting the Cubic vs DCTCP-SCE comparisons that we did in
   Section 5.2.1.3 and Section 5.2.2.2, we now run the same test with
   Cake's fair queueing enabled via triple-isolate:











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                  +-----+-------+-------+-------+-------+
                  |     | 0     | 10    | 20    | 80    |
                  +=====+=======+=======+=======+=======+
                  | 1   | 1.000 | 1.000 | 1.000 | 0.916 |
                  +-----+-------+-------+-------+-------+
                  | 5   | 1.000 | 0.980 | 0.931 | 0.698 |
                  +-----+-------+-------+-------+-------+
                  | 10  | 1.000 | 0.946 | 0.896 | 0.722 |
                  +-----+-------+-------+-------+-------+
                  | 50  | 1.000 | 0.978 | 0.977 | 1.000 |
                  +-----+-------+-------+-------+-------+
                  | 100 | 1.000 | 0.999 | 1.000 | 1.000 |
                  +-----+-------+-------+-------+-------+

                    Table 10: cubic vs dctcp-sce Jain's
                     fairness index; Columns: netem bi-
                         dir Delay (ms); Rows: Cake
                              Bandwidth (Mbit)

   With fair queueing, fairness is achieved for a broad range of
   bandwidth-delay combinations.  We do see a consistent and narrow
   deviation at around 160ms between 5 and 10Mbit, which happens in
   competition between SCE and non-SCE flows, regardless of the exact
   algorithms in use.  The cause of this will be investigated.

5.2.3.2.  DCTCP vs DCTCP-SCE

   As another example of SCE vs non-SCE competition with fair queueing
   enabled, here we compare DCTCP vs DCTCP-SCE:

                  +-----+-------+-------+-------+-------+
                  |     | 0     | 10    | 20    | 80    |
                  +=====+=======+=======+=======+=======+
                  | 1   | 1.000 | 1.000 | 1.000 | 0.900 |
                  +-----+-------+-------+-------+-------+
                  | 5   | 1.000 | 0.973 | 0.925 | 0.661 |
                  +-----+-------+-------+-------+-------+
                  | 10  | 1.000 | 0.950 | 0.901 | 0.739 |
                  +-----+-------+-------+-------+-------+
                  | 50  | 1.000 | 0.976 | 0.978 | 1.000 |
                  +-----+-------+-------+-------+-------+
                  | 100 | 1.000 | 0.999 | 0.999 | 0.999 |
                  +-----+-------+-------+-------+-------+

                    Table 11: dctcp vs dctcp-sce Jain's
                     fairness index; Columns: netem bi-
                         dir Delay (ms); Rows: Cake
                              Bandwidth (Mbit)



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   As with Cubic vs DCTCP-SCE, a high degree of fairness is achieved for
   most bandwidth-delay combinations, yet we do see the same small gap
   in fairness at around 160ms between 5 and 10Mbit as we see with Cubic
   vs DCTCP-SCE and other SCE vs non-SCE flow tests with fair queueing.
   It is expected that further investigation into this will lead to a
   solution.

6.  Security Considerations

   There are no known security considerations introduced by this note.

7.  IANA Considerations

   This document has no IANA actions.

8.  Acknowledgments

   Many thanks go out to Toke Hoiland-Jorgensen for making several key
   changes to the Flent tool.

9.  Informative References

   [Flent]    "The FLExible Network Tester Home Page", July 2019,
              <https://flent.org/>.

   [RFC5166]  Floyd, S., Ed., "Metrics for the Evaluation of Congestion
              Control Mechanisms", RFC 5166, DOI 10.17487/RFC5166, March
              2008, <https://www.rfc-editor.org/info/rfc5166>.

   [RFC8259]  Bray, T., Ed., "The JavaScript Object Notation (JSON) Data
              Interchange Format", STD 90, RFC 8259,
              DOI 10.17487/RFC8259, December 2017,
              <https://www.rfc-editor.org/info/rfc8259>.

   [sce-repo] "Some Congestion Experienced Reference Implementation
              GitHub Repository", July 2019,
              <https://github.com/chromi/sce/>.

   [ss]       "ss man page", July 2019,
              <https://linux.die.net/man/8/ss>.

Appendix A.  Appendix (Raw Results Tables)









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A.1.  One-Flow TCP Throughput

   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |   | 0     | 2     | 5     | 10    | 20    | 40    | 80    | 160   |
   +===+=======+=======+=======+=======+=======+=======+=======+=======+
   |0.5| 0.48  | 0.48  | 0.48  | 0.48  | 0.48  | 0.47  | 0.48  | 0.44  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |1  | 0.96  | 0.96  | 0.96  | 0.96  | 0.95  | 0.94  | 0.87  | 0.82  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |2  | 1.91  | 1.91  | 1.91  | 1.91  | 1.91  | 1.83  | 1.82  | 1.52  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |5  | 4.78  | 4.78  | 4.78  | 4.78  | 4.76  | 4.57  | 4.32  | 3.28  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |10 | 9.56  | 9.56  | 9.56  | 9.55  | 9.43  | 8.85  | 8.23  | 6.51  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |25 | 23.91 | 23.91 | 23.89 | 23.82 | 23.17 | 22.13 | 20.83 | 16.07 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |50 | 47.81 | 47.80 | 47.71 | 47.43 | 45.87 | 44.12 | 40.44 | 31.64 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |100| 95.64 | 95.50 | 95.17 | 94.39 | 92.52 | 87.73 | 77.25 | 82.38 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+

       Table 12: cubic Mean TCP Throughput (Mbit); Columns: netem bi-
        directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)


   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |   | 0     | 2     | 5     | 10    | 20    | 40    | 80    | 160   |
   +===+=======+=======+=======+=======+=======+=======+=======+=======+
   |0.5| 0.48  | 0.48  | 0.48  | 0.48  | 0.48  | 0.47  | 0.45  | 0.40  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |1  | 0.96  | 0.96  | 0.96  | 0.96  | 0.95  | 0.94  | 0.89  | 0.82  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |2  | 1.91  | 1.91  | 1.91  | 1.90  | 1.84  | 1.85  | 1.64  | 1.54  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |5  | 4.78  | 4.78  | 4.78  | 4.78  | 4.64  | 3.91  | 3.88  | 3.29  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |10 | 9.56  | 9.56  | 9.56  | 9.52  | 8.90  | 8.04  | 7.44  | 6.43  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |25 | 23.91 | 23.91 | 23.89 | 23.38 | 21.65 | 19.51 | 17.63 | 14.50 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |50 | 47.82 | 47.81 | 47.74 | 46.21 | 42.17 | 38.31 | 31.97 | 28.85 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |100| 95.63 | 95.53 | 94.91 | 90.65 | 83.51 | 69.92 | 63.70 | 53.89 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+

       Table 13: reno Mean TCP Throughput (Mbit); Columns: netem bi-
        directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)



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   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |   | 0     | 2     | 5     | 10    | 20    | 40    | 80    | 160   |
   +===+=======+=======+=======+=======+=======+=======+=======+=======+
   |0.5| 0.48  | 0.48  | 0.48  | 0.48  | 0.48  | 0.42  | 0.36  | 0.32  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |1  | 0.96  | 0.96  | 0.96  | 0.96  | 0.84  | 0.73  | 0.61  | 0.54  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |2  | 1.91  | 1.91  | 1.89  | 1.66  | 1.42  | 1.10  | 0.90  | 0.73  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |5  | 4.78  | 4.52  | 4.07  | 3.64  | 3.75  | 3.75  | 3.85  | 3.37  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |10 | 9.56  | 8.85  | 8.17  | 8.09  | 8.44  | 8.66  | 8.60  | 8.11  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |25 | 23.90 | 23.84 | 23.74 | 23.62 | 23.47 | 23.09 | 22.54 | 20.97 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |50 | 47.81 | 47.81 | 47.78 | 47.66 | 47.25 | 46.74 | 43.70 | 42.44 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |100| 95.64 | 95.58 | 95.30 | 94.98 | 93.82 | 91.37 | 87.46 | 82.83 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+

     Table 14: reno-sce Mean TCP Throughput (Mbit); Columns: netem bi-
        directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)


   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |   | 0     | 2     | 5     | 10    | 20    | 40    | 80    | 160   |
   +===+=======+=======+=======+=======+=======+=======+=======+=======+
   |0.5| 0.48  | 0.48  | 0.48  | 0.48  | 0.48  | 0.48  | 0.47  | 0.47  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |1  | 0.96  | 0.96  | 0.96  | 0.96  | 0.96  | 0.95  | 0.93  | 0.91  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |2  | 1.91  | 1.91  | 1.91  | 1.91  | 1.91  | 1.88  | 1.78  | 1.78  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |5  | 4.78  | 4.78  | 4.78  | 4.77  | 4.74  | 4.68  | 4.54  | 4.10  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |10 | 9.56  | 9.56  | 9.55  | 9.52  | 9.41  | 9.23  | 8.86  | 7.23  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |25 | 23.91 | 23.90 | 23.84 | 23.68 | 23.25 | 22.34 | 20.33 | 15.86 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |50 | 47.82 | 47.75 | 47.55 | 46.96 | 45.33 | 43.93 | 34.63 | 31.54 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |100| 95.62 | 94.89 | 93.59 | 91.78 | 90.26 | 81.84 | 70.42 | 57.89 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+

       Table 15: dctcp Mean TCP Throughput (Mbit); Columns: netem bi-
        directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)





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   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |   | 0     | 2     | 5     | 10    | 20    | 40    | 80    | 160   |
   +===+=======+=======+=======+=======+=======+=======+=======+=======+
   |0.5| 0.48  | 0.48  | 0.48  | 0.48  | 0.48  | 0.42  | 0.36  | 0.27  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |1  | 0.96  | 0.96  | 0.96  | 0.96  | 0.84  | 0.69  | 0.51  | 0.34  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |2  | 1.91  | 1.91  | 1.88  | 1.65  | 1.34  | 0.87  | 0.65  | 0.37  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |5  | 4.78  | 4.59  | 4.03  | 3.42  | 2.87  | 1.74  | 1.28  | 1.00  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |10 | 9.56  | 8.69  | 7.58  | 6.87  | 6.75  | 6.66  | 6.15  | 5.89  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |25 | 23.75 | 22.39 | 20.56 | 19.51 | 19.39 | 19.02 | 18.66 | 18.62 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |50 | 47.81 | 47.68 | 47.27 | 46.54 | 45.59 | 44.52 | 41.77 | 40.53 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |100| 95.64 | 95.59 | 95.34 | 94.90 | 94.30 | 90.53 | 85.48 | 82.53 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+

       Table 16: dctcp-sce Mean TCP Throughput (Mbit); Columns: netem
       bi-directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)


A.2.  One-Flow TCP RTT

   +---+------+------+------+------+--------+--------+--------+--------+
   |   |0     |2     |5     |10    | 20     | 40     | 80     | 160    |
   +===+======+======+======+======+========+========+========+========+
   |0.5|121.38|120.07|119.91|121.37| 108.48 | 128.70 | 189.50 | 230.34 |
   +---+------+------+------+------+--------+--------+--------+--------+
   |1  |68.40 |68.16 |68.10 |69.33 | 72.97  | 88.11  | 116.66 | 191.18 |
   +---+------+------+------+------+--------+--------+--------+--------+
   |2  |34.80 |35.01 |40.33 |40.17 | 52.74  | 62.05  | 100.71 | 175.00 |
   +---+------+------+------+------+--------+--------+--------+--------+
   |5  |13.79 |15.92 |18.43 |23.83 | 31.04  | 49.07  | 87.79  | 167.49 |
   +---+------+------+------+------+--------+--------+--------+--------+
   |10 |7.08  |8.95  |12.58 |17.39 | 26.12  | 44.73  | 84.60  | 164.49 |
   +---+------+------+------+------+--------+--------+--------+--------+
   |25 |6.36  |8.29  |11.31 |15.33 | 24.06  | 43.37  | 82.68  | 162.72 |
   +---+------+------+------+------+--------+--------+--------+--------+
   |50 |5.88  |8.16  |10.70 |14.76 | 23.51  | 42.82  | 82.10  | 161.81 |
   +---+------+------+------+------+--------+--------+--------+--------+
   |100|5.99  |8.08  |10.38 |14.42 | 23.69  | 42.90  | 82.16  | 162.01 |
   +---+------+------+------+------+--------+--------+--------+--------+

      Table 17: cubic Mean TCP RTT (ms); Columns: netem bi-directional
              Delay (ms); Rows: Cake-limited Bandwidth (Mbit)



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   +---+------+------+------+------+--------+--------+--------+--------+
   |   |0     |2     |5     |10    | 20     | 40     | 80     | 160    |
   +===+======+======+======+======+========+========+========+========+
   |0.5|138.77|137.84|138.91|138.92| 132.94 | 140.51 | 170.48 | 235.32 |
   +---+------+------+------+------+--------+--------+--------+--------+
   |1  |66.82 |66.68 |68.93 |69.02 | 77.11  | 91.69  | 123.15 | 196.59 |
   +---+------+------+------+------+--------+--------+--------+--------+
   |2  |41.00 |41.25 |40.81 |42.24 | 47.24  | 65.51  | 99.34  | 176.74 |
   +---+------+------+------+------+--------+--------+--------+--------+
   |5  |16.25 |18.37 |19.18 |25.13 | 32.06  | 49.61  | 87.61  | 167.39 |
   +---+------+------+------+------+--------+--------+--------+--------+
   |10 |7.68  |9.86  |13.14 |18.75 | 26.74  | 45.54  | 84.50  | 164.45 |
   +---+------+------+------+------+--------+--------+--------+--------+
   |25 |6.27  |8.26  |11.46 |15.22 | 23.65  | 42.84  | 82.59  | 162.69 |
   +---+------+------+------+------+--------+--------+--------+--------+
   |50 |5.99  |8.08  |10.34 |14.11 | 22.86  | 42.22  | 81.97  | 162.08 |
   +---+------+------+------+------+--------+--------+--------+--------+
   |100|5.87  |7.64  |9.85  |13.62 | 22.64  | 41.96  | 81.73  | 161.76 |
   +---+------+------+------+------+--------+--------+--------+--------+

      Table 18: reno Mean TCP RTT (ms); Columns: netem bi-directional
              Delay (ms); Rows: Cake-limited Bandwidth (Mbit)


   +---+-----+-------+-------+-------+-------+-------+--------+--------+
   |   |0    | 2     | 5     | 10    | 20    | 40    | 80     | 160    |
   +===+=====+=======+=======+=======+=======+=======+========+========+
   |0.5|50.36| 50.33 | 50.48 | 50.33 | 70.57 | 87.95 | 128.25 | 203.39 |
   +---+-----+-------+-------+-------+-------+-------+--------+--------+
   |1  |24.52| 24.74 | 26.28 | 35.99 | 44.19 | 63.77 | 104.02 | 183.39 |
   +---+-----+-------+-------+-------+-------+-------+--------+--------+
   |2  |11.91| 13.58 | 18.62 | 23.01 | 32.70 | 55.39 | 95.68  | 175.24 |
   +---+-----+-------+-------+-------+-------+-------+--------+--------+
   |5  |7.07 | 8.90  | 11.67 | 16.76 | 26.43 | 46.12 | 85.92  | 166.15 |
   +---+-----+-------+-------+-------+-------+-------+--------+--------+
   |10 |5.22 | 7.11  | 10.19 | 14.84 | 24.30 | 44.12 | 83.96  | 164.04 |
   +---+-----+-------+-------+-------+-------+-------+--------+--------+
   |25 |4.40 | 6.17  | 8.93  | 13.48 | 23.23 | 42.85 | 82.78  | 162.68 |
   +---+-----+-------+-------+-------+-------+-------+--------+--------+
   |50 |3.99 | 5.90  | 8.86  | 13.80 | 23.45 | 43.20 | 82.83  | 162.65 |
   +---+-----+-------+-------+-------+-------+-------+--------+--------+
   |100|4.00 | 5.97  | 8.81  | 13.68 | 23.59 | 43.38 | 83.14  | 162.91 |
   +---+-----+-------+-------+-------+-------+-------+--------+--------+

          Table 19: reno-sce Mean TCP RTT (ms); Columns: netem bi-
        directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)





Heist, et al.            Expires 4 January 2020                [Page 19]


Internet-Draft               sceonetwotests                    July 2019


   +---+------+------+------+------+--------+--------+--------+--------+
   |   |0     |2     |5     |10    | 20     | 40     | 80     | 160    |
   +===+======+======+======+======+========+========+========+========+
   |0.5|132.20|131.17|131.14|130.92| 130.17 | 157.56 | 199.65 | 260.24 |
   +---+------+------+------+------+--------+--------+--------+--------+
   |1  |66.23 |66.69 |66.65 |66.60 | 79.38  | 103.86 | 135.31 | 203.32 |
   +---+------+------+------+------+--------+--------+--------+--------+
   |2  |33.84 |34.07 |39.03 |40.24 | 52.76  | 69.25  | 104.09 | 183.85 |
   +---+------+------+------+------+--------+--------+--------+--------+
   |5  |13.67 |15.87 |18.50 |23.05 | 32.73  | 53.12  | 89.63  | 168.33 |
   +---+------+------+------+------+--------+--------+--------+--------+
   |10 |6.99  |9.06  |12.82 |17.26 | 26.75  | 45.79  | 85.43  | 165.10 |
   +---+------+------+------+------+--------+--------+--------+--------+
   |25 |6.57  |8.26  |11.25 |16.07 | 25.65  | 44.11  | 83.45  | 163.30 |
   +---+------+------+------+------+--------+--------+--------+--------+
   |50 |6.22  |8.39  |10.98 |15.83 | 25.65  | 45.56  | 82.73  | 162.51 |
   +---+------+------+------+------+--------+--------+--------+--------+
   |100|6.31  |8.27  |11.16 |16.12 | 25.88  | 44.90  | 82.43  | 162.05 |
   +---+------+------+------+------+--------+--------+--------+--------+

      Table 20: dctcp Mean TCP RTT (ms); Columns: netem bi-directional
              Delay (ms); Rows: Cake-limited Bandwidth (Mbit)


   +---+-----+-------+-------+-------+-------+-------+--------+--------+
   |   |0    | 2     | 5     | 10    | 20    | 40    | 80     | 160    |
   +===+=====+=======+=======+=======+=======+=======+========+========+
   |0.5|49.63| 49.96 | 49.77 | 49.39 | 69.64 | 87.27 | 124.89 | 205.91 |
   +---+-----+-------+-------+-------+-------+-------+--------+--------+
   |1  |24.45| 24.38 | 26.22 | 35.62 | 44.12 | 64.59 | 105.36 | 187.70 |
   +---+-----+-------+-------+-------+-------+-------+--------+--------+
   |2  |11.90| 13.78 | 18.17 | 22.66 | 32.83 | 56.55 | 96.72  | 179.88 |
   +---+-----+-------+-------+-------+-------+-------+--------+--------+
   |5  |7.02 | 8.60  | 11.42 | 16.60 | 27.16 | 49.53 | 90.11  | 170.64 |
   +---+-----+-------+-------+-------+-------+-------+--------+--------+
   |10 |5.14 | 6.95  | 9.97  | 15.01 | 24.59 | 44.28 | 84.15  | 163.98 |
   +---+-----+-------+-------+-------+-------+-------+--------+--------+
   |25 |4.10 | 5.74  | 8.31  | 12.94 | 22.72 | 42.48 | 82.47  | 162.52 |
   +---+-----+-------+-------+-------+-------+-------+--------+--------+
   |50 |3.59 | 5.24  | 7.99  | 12.71 | 22.28 | 41.99 | 81.92  | 161.88 |
   +---+-----+-------+-------+-------+-------+-------+--------+--------+
   |100|3.52 | 5.46  | 8.34  | 13.11 | 22.62 | 42.38 | 82.29  | 162.07 |
   +---+-----+-------+-------+-------+-------+-------+--------+--------+

         Table 21: dctcp-sce Mean TCP RTT (ms); Columns: netem bi-
        directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)





Heist, et al.            Expires 4 January 2020                [Page 20]


Internet-Draft               sceonetwotests                    July 2019


A.3.  Two-Flow TCP Throughput (Cake "flowblind")

   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |   | 0     | 10    | 20    | 80    | 0     | 10    | 20    | 80    |
   +===+=======+=======+=======+=======+=======+=======+=======+=======+
   |   | cubic |       |       |       | cubic |       |       |       |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |1  | 0.48  | 0.48  | 0.48  | 0.46  | 0.48  | 0.48  | 0.47  | 0.46  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |5  | 2.41  | 2.39  | 2.37  | 2.27  | 2.37  | 2.38  | 2.37  | 2.19  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |10 | 4.82  | 4.57  | 4.70  | 3.83  | 4.74  | 4.93  | 4.77  | 4.83  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |50 | 22.64 | 23.46 | 24.09 | 22.26 | 25.18 | 24.19 | 23.07 | 20.68 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |100| 47.66 | 42.88 | 46.29 | 44.10 | 48.01 | 52.03 | 48.29 | 43.72 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+

      Table 22: cubic-cubic Mean TCP Throughput (Mbit); Columns: netem
       bi-directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)


   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |   | 0     | 10    | 20    | 80    | 0     | 10    | 20    | 80    |
   +===+=======+=======+=======+=======+=======+=======+=======+=======+
   |   | cubic |       |       |       | reno  |       |       |       |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |1  | 0.43  | 0.46  | 0.45  | 0.41  | 0.53  | 0.50  | 0.51  | 0.51  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |5  | 2.10  | 2.04  | 2.46  | 2.30  | 2.68  | 2.71  | 2.22  | 2.04  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |10 | 4.23  | 4.61  | 4.50  | 4.16  | 5.34  | 4.81  | 4.83  | 4.17  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |50 | 22.79 | 24.60 | 23.55 | 26.18 | 25.03 | 23.05 | 23.32 | 14.70 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |100| 46.82 | 51.06 | 48.73 | 55.96 | 48.83 | 43.85 | 44.96 | 29.02 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+

      Table 23: cubic-reno Mean TCP Throughput (Mbit); Columns: netem
       bi-directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)











Heist, et al.            Expires 4 January 2020                [Page 21]


Internet-Draft               sceonetwotests                    July 2019


   +---+-------+-------+-------+-------+----------+-----+------+-------+
   |   | 0     | 10    | 20    | 80    | 0        | 10  | 20   | 80    |
   +===+=======+=======+=======+=======+==========+=====+======+=======+
   |   | cubic |       |       |       | reno-sce |     |      |       |
   +---+-------+-------+-------+-------+----------+-----+------+-------+
   |1  | 0.55  | 0.55  | 0.62  | 0.66  | 0.41     | 0.41| 0.34 | 0.24  |
   +---+-------+-------+-------+-------+----------+-----+------+-------+
   |5  | 2.75  | 3.63  | 3.96  | 3.92  | 2.03     | 1.14| 0.80 | 0.46  |
   +---+-------+-------+-------+-------+----------+-----+------+-------+
   |10 | 5.50  | 7.97  | 8.24  | 7.57  | 4.06     | 1.57| 1.26 | 1.37  |
   +---+-------+-------+-------+-------+----------+-----+------+-------+
   |50 | 43.53 | 44.29 | 42.98 | 39.36 | 4.30     | 3.44| 4.25 | 4.89  |
   +---+-------+-------+-------+-------+----------+-----+------+-------+
   |100| 91.16 | 89.89 | 88.69 | 76.76 | 4.46     | 5.28| 5.77 | 11.79 |
   +---+-------+-------+-------+-------+----------+-----+------+-------+

       Table 24: cubic-reno-sce Mean TCP Throughput (Mbit); Columns:
       netem bi- directional Delay (ms); Rows: Cake-limited Bandwidth
                                   (Mbit)


   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |   | 0     | 10    | 20    | 80    | 0     | 10    | 20    | 80    |
   +===+=======+=======+=======+=======+=======+=======+=======+=======+
   |   | cubic |       |       |       | dctcp |       |       |       |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |1  | 0.48  | 0.47  | 0.40  | 0.33  | 0.48  | 0.48  | 0.56  | 0.60  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |5  | 2.30  | 1.53  | 1.49  | 1.70  | 2.49  | 3.25  | 3.26  | 2.87  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |10 | 3.69  | 2.77  | 2.81  | 2.99  | 5.88  | 6.77  | 6.68  | 5.96  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |50 | 14.99 | 16.93 | 15.25 | 18.99 | 32.85 | 30.62 | 31.72 | 24.58 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |100| 31.33 | 30.67 | 33.63 | 32.23 | 64.35 | 63.57 | 59.81 | 55.50 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+

      Table 25: cubic-dctcp Mean TCP Throughput (Mbit); Columns: netem
       bi-directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)












Heist, et al.            Expires 4 January 2020                [Page 22]


Internet-Draft               sceonetwotests                    July 2019


   +---+-------+-------+-------+-------+-----------+-----+------+------+
   |   | 0     | 10    | 20    | 80    | 0         | 10  | 20   | 80   |
   +===+=======+=======+=======+=======+===========+=====+======+======+
   |   | cubic |       |       |       | dctcp-sce |     |      |      |
   +---+-------+-------+-------+-------+-----------+-----+------+------+
   |1  | 0.55  | 0.55  | 0.62  | 0.66  | 0.41      | 0.40| 0.34 | 0.24 |
   +---+-------+-------+-------+-------+-----------+-----+------+------+
   |5  | 2.76  | 3.59  | 3.91  | 4.01  | 2.02      | 1.18| 0.85 | 0.42 |
   +---+-------+-------+-------+-------+-----------+-----+------+------+
   |10 | 5.48  | 7.95  | 8.24  | 7.81  | 4.08      | 1.60| 1.22 | 1.01 |
   +---+-------+-------+-------+-------+-----------+-----+------+------+
   |50 | 43.46 | 44.60 | 43.46 | 39.78 | 4.36      | 3.12| 3.75 | 4.29 |
   +---+-------+-------+-------+-------+-----------+-----+------+------+
   |100| 91.37 | 90.47 | 88.47 | 77.27 | 4.28      | 4.69| 5.59 | 7.74 |
   +---+-------+-------+-------+-------+-----------+-----+------+------+

       Table 26: cubic-dctcp-sce Mean TCP Throughput (Mbit); Columns:
       netem bi- directional Delay (ms); Rows: Cake-limited Bandwidth
                                   (Mbit)


   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |   | 0     | 10    | 20    | 80    | 0     | 10    | 20    | 80    |
   +===+=======+=======+=======+=======+=======+=======+=======+=======+
   |   | reno  |       |       |       | reno  |       |       |       |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |1  | 0.52  | 0.48  | 0.47  | 0.44  | 0.44  | 0.48  | 0.48  | 0.48  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |5  | 2.39  | 2.36  | 2.23  | 1.98  | 2.39  | 2.37  | 2.41  | 2.15  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |10 | 4.74  | 4.86  | 4.79  | 3.92  | 4.82  | 4.51  | 4.40  | 3.93  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |50 | 23.88 | 22.77 | 22.88 | 18.78 | 23.95 | 24.90 | 24.03 | 17.50 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |100| 49.89 | 45.68 | 48.07 | 36.99 | 45.76 | 49.17 | 44.65 | 37.37 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+

       Table 27: reno-reno Mean TCP Throughput (Mbit); Columns: netem
       bi-directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)












Heist, et al.            Expires 4 January 2020                [Page 23]


Internet-Draft               sceonetwotests                    July 2019


   +---+-----+------+-------+-------+----------+-------+-------+-------+
   |   |0    | 10   | 20    | 80    | 0        | 10    | 20    | 80    |
   +===+=====+======+=======+=======+==========+=======+=======+=======+
   |   |reno |      |       |       | reno-sce |       |       |       |
   +---+-----+------+-------+-------+----------+-------+-------+-------+
   |1  |0.56 | 0.56 | 0.62  | 0.66  | 0.39     | 0.39  | 0.33  | 0.24  |
   +---+-----+------+-------+-------+----------+-------+-------+-------+
   |5  |2.89 | 3.43 | 3.82  | 3.64  | 1.89     | 1.26  | 0.86  | 0.49  |
   +---+-----+------+-------+-------+----------+-------+-------+-------+
   |10 |5.77 | 7.71 | 7.91  | 6.96  | 3.80     | 1.78  | 1.38  | 1.44  |
   +---+-----+------+-------+-------+----------+-------+-------+-------+
   |50 |43.10| 42.13| 39.08 | 28.40 | 4.72     | 5.18  | 6.99  | 14.62 |
   +---+-----+------+-------+-------+----------+-------+-------+-------+
   |100|90.26| 83.33| 78.25 | 62.70 | 5.40     | 10.72 | 13.52 | 19.41 |
   +---+-----+------+-------+-------+----------+-------+-------+-------+

        Table 28: reno-reno-sce Mean TCP Throughput (Mbit); Columns:
       netem bi- directional Delay (ms); Rows: Cake-limited Bandwidth
                                   (Mbit)


   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |   | 0     | 10    | 20    | 80    | 0     | 10    | 20    | 80    |
   +===+=======+=======+=======+=======+=======+=======+=======+=======+
   |   | reno  |       |       |       | dctcp |       |       |       |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |1  | 0.55  | 0.54  | 0.42  | 0.37  | 0.41  | 0.42  | 0.53  | 0.57  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |5  | 2.60  | 1.65  | 1.58  | 1.44  | 2.18  | 3.12  | 3.15  | 3.09  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |10 | 4.12  | 3.28  | 2.98  | 2.80  | 5.44  | 6.24  | 6.46  | 5.99  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |50 | 17.17 | 17.86 | 16.27 | 11.57 | 30.66 | 29.71 | 30.63 | 28.80 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |100| 36.09 | 33.70 | 28.55 | 18.60 | 59.58 | 60.61 | 64.04 | 59.50 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+

      Table 29: reno-dctcp Mean TCP Throughput (Mbit); Columns: netem
       bi-directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)












Heist, et al.            Expires 4 January 2020                [Page 24]


Internet-Draft               sceonetwotests                    July 2019


   +---+------+-------+-------+-------+-----------+----+-------+-------+
   |   | 0    | 10    | 20    | 80    | 0         |10  | 20    | 80    |
   +===+======+=======+=======+=======+===========+====+=======+=======+
   |   | reno |       |       |       | dctcp-sce |    |       |       |
   +---+------+-------+-------+-------+-----------+----+-------+-------+
   |1  | 0.57 | 0.56  | 0.63  | 0.66  | 0.39      |0.39| 0.33  | 0.24  |
   +---+------+-------+-------+-------+-----------+----+-------+-------+
   |5  | 2.89 | 3.74  | 3.88  | 3.68  | 1.89      |1.03| 0.83  | 0.47  |
   +---+------+-------+-------+-------+-----------+----+-------+-------+
   |10 | 5.70 | 7.72  | 7.94  | 7.03  | 3.86      |1.77| 1.32  | 1.18  |
   +---+------+-------+-------+-------+-----------+----+-------+-------+
   |50 | 43.12| 42.73 | 39.77 | 31.55 | 4.70      |4.57| 6.11  | 9.93  |
   +---+------+-------+-------+-------+-----------+----+-------+-------+
   |100| 90.46| 84.75 | 79.64 | 63.20 | 5.18      |9.21| 11.03 | 11.65 |
   +---+------+-------+-------+-------+-----------+----+-------+-------+

       Table 30: reno-dctcp-sce Mean TCP Throughput (Mbit); Columns:
       netem bi- directional Delay (ms); Rows: Cake-limited Bandwidth
                                   (Mbit)


   +---+----------+-----+-----+-----+----------+-------+-------+-------+
   |   | 0        |10   |20   |80   | 0        | 10    | 20    | 80    |
   +===+==========+=====+=====+=====+==========+=======+=======+=======+
   |   | reno-sce |     |     |     | reno-sce |       |       |       |
   +---+----------+-----+-----+-----+----------+-------+-------+-------+
   |1  | 0.48     |0.48 |0.48 |0.32 | 0.48     | 0.48  | 0.48  | 0.34  |
   +---+----------+-----+-----+-----+----------+-------+-------+-------+
   |5  | 2.39     |1.99 |1.75 |1.77 | 2.39     | 2.04  | 1.75  | 1.52  |
   +---+----------+-----+-----+-----+----------+-------+-------+-------+
   |10 | 4.78     |3.80 |3.82 |4.23 | 4.78     | 4.00  | 3.79  | 4.06  |
   +---+----------+-----+-----+-----+----------+-------+-------+-------+
   |50 | 24.24    |21.17|24.08|24.69| 23.60    | 26.11 | 22.91 | 20.34 |
   +---+----------+-----+-----+-----+----------+-------+-------+-------+
   |100| 42.25    |47.10|37.69|44.31| 53.39    | 48.22 | 57.14 | 40.92 |
   +---+----------+-----+-----+-----+----------+-------+-------+-------+

      Table 31: reno-sce-reno-sce Mean TCP Throughput (Mbit); Columns:
       netem bi- directional Delay (ms); Rows: Cake-limited Bandwidth
                                   (Mbit)











Heist, et al.            Expires 4 January 2020                [Page 25]


Internet-Draft               sceonetwotests                    July 2019


   +---+----------+-----+------+-------+-------+-------+-------+-------+
   |   | 0        | 10  | 20   | 80    | 0     | 10    | 20    | 80    |
   +===+==========+=====+======+=======+=======+=======+=======+=======+
   |   | reno-sce |     |      |       | dctcp |       |       |       |
   +---+----------+-----+------+-------+-------+-------+-------+-------+
   |1  | 0.46     | 0.46| 0.31 | 0.19  | 0.50  | 0.50  | 0.65  | 0.75  |
   +---+----------+-----+------+-------+-------+-------+-------+-------+
   |5  | 2.16     | 1.12| 0.78 | 0.38  | 2.63  | 3.66  | 4.00  | 4.20  |
   +---+----------+-----+------+-------+-------+-------+-------+-------+
   |10 | 3.62     | 1.57| 1.15 | 0.90  | 5.94  | 7.98  | 8.35  | 8.33  |
   +---+----------+-----+------+-------+-------+-------+-------+-------+
   |50 | 4.03     | 2.33| 2.98 | 10.00 | 43.81 | 45.32 | 44.04 | 32.95 |
   +---+----------+-----+------+-------+-------+-------+-------+-------+
   |100| 4.38     | 4.10| 3.77 | 15.34 | 91.30 | 89.54 | 88.99 | 67.81 |
   +---+----------+-----+------+-------+-------+-------+-------+-------+

       Table 32: reno-sce-dctcp Mean TCP Throughput (Mbit); Columns:
       netem bi- directional Delay (ms); Rows: Cake-limited Bandwidth
                                   (Mbit)


   +---+----------+------+-------+-------+-----------+-------+----+----+
   |   | 0        | 10   | 20    | 80    | 0         | 10    |20  |80  |
   +===+==========+======+=======+=======+===========+=======+====+====+
   |   | reno-sce |      |       |       | dctcp-sce |       |    |    |
   +---+----------+------+-------+-------+-----------+-------+----+----+
   |1  | 0.48     | 0.48 | 0.48  | 0.34  | 0.48      | 0.48  |0.48|0.33|
   +---+----------+------+-------+-------+-----------+-------+----+----+
   |5  | 2.39     | 1.97 | 1.65  | 1.78  | 2.39      | 2.05  |1.73|0.96|
   +---+----------+------+-------+-------+-----------+-------+----+----+
   |10 | 4.78     | 3.97 | 3.93  | 5.01  | 4.78      | 3.73  |3.29|2.60|
   +---+----------+------+-------+-------+-----------+-------+----+----+
   |50 | 31.92    | 39.92| 40.62 | 39.76 | 15.90     | 7.24  |5.80|4.70|
   +---+----------+------+-------+-------+-----------+-------+----+----+
   |100| 62.33    | 82.41| 85.50 | 82.05 | 33.30     | 12.61 |9.49|6.82|
   +---+----------+------+-------+-------+-----------+-------+----+----+

     Table 33: reno-sce-dctcp-sce Mean TCP Throughput (Mbit); Columns:
       netem bi- directional Delay (ms); Rows: Cake-limited Bandwidth
                                   (Mbit)











Heist, et al.            Expires 4 January 2020                [Page 26]


Internet-Draft               sceonetwotests                    July 2019


   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |   | 0     | 10    | 20    | 80    | 0     | 10    | 20    | 80    |
   +===+=======+=======+=======+=======+=======+=======+=======+=======+
   |   | dctcp |       |       |       | dctcp |       |       |       |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |1  | 0.48  | 0.48  | 0.50  | 0.47  | 0.48  | 0.48  | 0.45  | 0.47  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |5  | 2.41  | 2.40  | 2.39  | 2.32  | 2.37  | 2.38  | 2.37  | 2.27  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |10 | 4.89  | 4.88  | 4.77  | 4.66  | 4.68  | 4.66  | 4.70  | 4.38  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |50 | 23.87 | 23.68 | 25.27 | 19.63 | 23.95 | 23.72 | 21.30 | 21.54 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |100| 49.20 | 45.78 | 47.85 | 41.79 | 46.43 | 47.44 | 45.23 | 39.41 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+

      Table 34: dctcp-dctcp Mean TCP Throughput (Mbit); Columns: netem
       bi-directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)


   +---+-------+-------+-------+-------+-----------+-----+------+------+
   |   | 0     | 10    | 20    | 80    | 0         | 10  | 20   | 80   |
   +===+=======+=======+=======+=======+===========+=====+======+======+
   |   | dctcp |       |       |       | dctcp-sce |     |      |      |
   +---+-------+-------+-------+-------+-----------+-----+------+------+
   |1  | 0.50  | 0.50  | 0.63  | 0.75  | 0.45      | 0.46| 0.33 | 0.19 |
   +---+-------+-------+-------+-------+-----------+-----+------+------+
   |5  | 2.62  | 3.67  | 4.00  | 4.26  | 2.16      | 1.12| 0.76 | 0.34 |
   +---+-------+-------+-------+-------+-----------+-----+------+------+
   |10 | 5.98  | 7.98  | 8.38  | 8.47  | 3.59      | 1.56| 1.12 | 0.69 |
   +---+-------+-------+-------+-------+-----------+-----+------+------+
   |50 | 43.80 | 45.41 | 44.22 | 34.01 | 4.02      | 2.21| 2.72 | 9.50 |
   +---+-------+-------+-------+-------+-----------+-----+------+------+
   |100| 91.58 | 89.85 | 89.10 | 69.89 | 4.07      | 3.82| 3.61 | 8.74 |
   +---+-------+-------+-------+-------+-----------+-----+------+------+

       Table 35: dctcp-dctcp-sce Mean TCP Throughput (Mbit); Columns:
       netem bi- directional Delay (ms); Rows: Cake-limited Bandwidth
                                   (Mbit)












Heist, et al.            Expires 4 January 2020                [Page 27]


Internet-Draft               sceonetwotests                    July 2019


   +---+-----------+-----+-----+-----+-----------+-----+-------+-------+
   |   | 0         |10   |20   |80   | 0         |10   | 20    | 80    |
   +===+===========+=====+=====+=====+===========+=====+=======+=======+
   |   | dctcp-sce |     |     |     | dctcp-sce |     |       |       |
   +---+-----------+-----+-----+-----+-----------+-----+-------+-------+
   |1  | 0.48      |0.48 |0.48 |0.34 | 0.48      |0.48 | 0.48  | 0.33  |
   +---+-----------+-----+-----+-----+-----------+-----+-------+-------+
   |5  | 2.39      |1.99 |1.70 |1.02 | 2.39      |2.04 | 1.66  | 1.01  |
   +---+-----------+-----+-----+-----+-----------+-----+-------+-------+
   |10 | 4.78      |3.78 |3.58 |3.04 | 4.78      |3.71 | 3.23  | 3.33  |
   +---+-----------+-----+-----+-----+-----------+-----+-------+-------+
   |50 | 24.16     |19.48|19.33|18.15| 23.61     |21.42| 19.76 | 20.18 |
   +---+-----------+-----+-----+-----+-----------+-----+-------+-------+
   |100| 48.08     |43.17|54.14|19.58| 47.56     |49.83| 36.85 | 19.25 |
   +---+-----------+-----+-----+-----+-----------+-----+-------+-------+

         Table 36: dctcp-sce-dctcp-sce Mean TCP Throughput (Mbit);
       Columns: netem bi- directional Delay (ms); Rows: Cake-limited
                              Bandwidth (Mbit)


A.4.  Two-Flow TCP Throughput (Cake "flowblind sce-single")

   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |   | 0     | 10    | 20    | 80    | 0     | 10    | 20    | 80    |
   +===+=======+=======+=======+=======+=======+=======+=======+=======+
   |   | cubic |       |       |       | cubic |       |       |       |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |1  | 0.48  | 0.48  | 0.48  | 0.42  | 0.48  | 0.48  | 0.48  | 0.51  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |5  | 2.42  | 2.31  | 2.44  | 2.21  | 2.36  | 2.46  | 2.29  | 2.30  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |10 | 4.83  | 4.95  | 4.62  | 4.15  | 4.74  | 4.59  | 4.88  | 4.63  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |50 | 23.88 | 23.31 | 24.19 | 23.67 | 23.95 | 24.34 | 22.99 | 19.38 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |100| 50.40 | 47.62 | 48.40 | 38.13 | 45.25 | 47.30 | 46.14 | 48.92 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+

      Table 37: cubic-cubic Mean TCP Throughput (Mbit); Columns: netem
       bi-directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)










Heist, et al.            Expires 4 January 2020                [Page 28]


Internet-Draft               sceonetwotests                    July 2019


   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |   | 0     | 10    | 20    | 80    | 0     | 10    | 20    | 80    |
   +===+=======+=======+=======+=======+=======+=======+=======+=======+
   |   | cubic |       |       |       | reno  |       |       |       |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |1  | 0.55  | 0.46  | 0.44  | 0.40  | 0.41  | 0.50  | 0.51  | 0.52  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |5  | 2.14  | 2.06  | 2.23  | 2.08  | 2.64  | 2.68  | 2.46  | 2.18  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |10 | 4.39  | 4.63  | 4.92  | 4.28  | 5.18  | 4.78  | 4.44  | 4.06  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |50 | 22.61 | 24.49 | 25.41 | 29.22 | 25.22 | 23.18 | 21.59 | 12.14 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |100| 46.37 | 48.43 | 44.51 | 52.13 | 49.30 | 46.45 | 48.88 | 31.90 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+

      Table 38: cubic-reno Mean TCP Throughput (Mbit); Columns: netem
       bi-directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)


   +---+-----+------+-------+-------+----------+-------+-------+-------+
   |   |0    | 10   | 20    | 80    | 0        | 10    | 20    | 80    |
   +===+=====+======+=======+=======+==========+=======+=======+=======+
   |   |cubic|      |       |       | reno-sce |       |       |       |
   +---+-----+------+-------+-------+----------+-------+-------+-------+
   |1  |0.45 | 0.46 | 0.51  | 0.48  | 0.50     | 0.50  | 0.44  | 0.42  |
   +---+-----+------+-------+-------+----------+-------+-------+-------+
   |5  |2.24 | 3.07 | 3.78  | 3.24  | 2.54     | 1.68  | 0.97  | 1.13  |
   +---+-----+------+-------+-------+----------+-------+-------+-------+
   |10 |4.16 | 5.59 | 7.04  | 4.21  | 5.40     | 3.78  | 2.36  | 4.18  |
   +---+-----+------+-------+-------+----------+-------+-------+-------+
   |50 |23.95| 24.71| 25.16 | 17.98 | 23.87    | 22.53 | 21.18 | 20.74 |
   +---+-----+------+-------+-------+----------+-------+-------+-------+
   |100|50.40| 66.75| 65.82 | 64.67 | 45.26    | 28.41 | 28.70 | 22.52 |
   +---+-----+------+-------+-------+----------+-------+-------+-------+

       Table 39: cubic-reno-sce Mean TCP Throughput (Mbit); Columns:
       netem bi- directional Delay (ms); Rows: Cake-limited Bandwidth
                                   (Mbit)












Heist, et al.            Expires 4 January 2020                [Page 29]


Internet-Draft               sceonetwotests                    July 2019


   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |   | 0     | 10    | 20    | 80    | 0     | 10    | 20    | 80    |
   +===+=======+=======+=======+=======+=======+=======+=======+=======+
   |   | cubic |       |       |       | dctcp |       |       |       |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |1  | 0.40  | 0.39  | 0.37  | 0.30  | 0.56  | 0.57  | 0.59  | 0.65  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |5  | 1.87  | 1.38  | 1.25  | 1.57  | 2.91  | 3.40  | 3.50  | 3.03  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |10 | 3.37  | 1.88  | 1.56  | 2.00  | 6.20  | 7.66  | 7.89  | 7.04  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |50 | 6.74  | 5.79  | 6.91  | 11.76 | 41.11 | 39.67 | 37.24 | 30.38 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |100| 11.73 | 12.49 | 11.51 | 22.96 | 83.95 | 71.89 | 69.95 | 60.58 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+

      Table 40: cubic-dctcp Mean TCP Throughput (Mbit); Columns: netem
       bi-directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)


   +---+-----+-----+-------+-------+-----------+-------+-------+-------+
   |   |0    |10   | 20    | 80    | 0         | 10    | 20    | 80    |
   +===+=====+=====+=======+=======+===========+=======+=======+=======+
   |   |cubic|     |       |       | dctcp-sce |       |       |       |
   +---+-----+-----+-------+-------+-----------+-------+-------+-------+
   |1  |0.44 |0.46 | 0.51  | 0.55  | 0.52      | 0.49  | 0.44  | 0.37  |
   +---+-----+-----+-------+-------+-----------+-------+-------+-------+
   |5  |2.40 |3.18 | 3.69  | 3.46  | 2.39      | 1.58  | 1.06  | 0.89  |
   +---+-----+-----+-------+-------+-----------+-------+-------+-------+
   |10 |4.02 |6.35 | 7.58  | 5.48  | 5.54      | 3.09  | 1.87  | 2.58  |
   +---+-----+-----+-------+-------+-----------+-------+-------+-------+
   |50 |24.54|37.56| 35.51 | 27.95 | 23.29     | 10.16 | 11.77 | 15.42 |
   +---+-----+-----+-------+-------+-----------+-------+-------+-------+
   |100|59.52|77.63| 80.96 | 75.79 | 36.12     | 17.42 | 13.35 | 11.62 |
   +---+-----+-----+-------+-------+-----------+-------+-------+-------+

       Table 41: cubic-dctcp-sce Mean TCP Throughput (Mbit); Columns:
       netem bi- directional Delay (ms); Rows: Cake-limited Bandwidth
                                   (Mbit)












Heist, et al.            Expires 4 January 2020                [Page 30]


Internet-Draft               sceonetwotests                    July 2019


   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |   | 0     | 10    | 20    | 80    | 0     | 10    | 20    | 80    |
   +===+=======+=======+=======+=======+=======+=======+=======+=======+
   |   | reno  |       |       |       | reno  |       |       |       |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |1  | 0.49  | 0.47  | 0.49  | 0.46  | 0.47  | 0.48  | 0.47  | 0.45  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |5  | 2.38  | 2.39  | 2.33  | 1.96  | 2.40  | 2.35  | 2.33  | 2.16  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |10 | 4.78  | 4.58  | 4.63  | 3.79  | 4.79  | 4.84  | 4.61  | 4.23  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |50 | 24.05 | 23.35 | 24.20 | 19.51 | 23.78 | 24.33 | 22.69 | 16.79 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |100| 46.69 | 50.26 | 46.11 | 35.97 | 48.97 | 44.58 | 46.86 | 38.56 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+

       Table 42: reno-reno Mean TCP Throughput (Mbit); Columns: netem
       bi-directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)


   +---+-----+------+-------+-------+----------+-------+-------+-------+
   |   |0    | 10   | 20    | 80    | 0        | 10    | 20    | 80    |
   +===+=====+======+=======+=======+==========+=======+=======+=======+
   |   |reno |      |       |       | reno-sce |       |       |       |
   +---+-----+------+-------+-------+----------+-------+-------+-------+
   |1  |0.47 | 0.50 | 0.49  | 0.49  | 0.49     | 0.46  | 0.47  | 0.39  |
   +---+-----+------+-------+-------+----------+-------+-------+-------+
   |5  |2.51 | 2.89 | 3.58  | 3.08  | 2.27     | 1.83  | 1.12  | 1.11  |
   +---+-----+------+-------+-------+----------+-------+-------+-------+
   |10 |4.51 | 5.67 | 6.96  | 4.39  | 5.06     | 3.55  | 2.22  | 3.74  |
   +---+-----+------+-------+-------+----------+-------+-------+-------+
   |50 |23.88| 26.49| 26.33 | 15.66 | 23.94    | 20.93 | 19.68 | 21.41 |
   +---+-----+------+-------+-------+----------+-------+-------+-------+
   |100|53.06| 62.99| 58.85 | 48.15 | 42.59    | 31.69 | 33.83 | 38.41 |
   +---+-----+------+-------+-------+----------+-------+-------+-------+

        Table 43: reno-reno-sce Mean TCP Throughput (Mbit); Columns:
       netem bi- directional Delay (ms); Rows: Cake-limited Bandwidth
                                   (Mbit)












Heist, et al.            Expires 4 January 2020                [Page 31]


Internet-Draft               sceonetwotests                    July 2019


   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |   | 0     | 10    | 20    | 80    | 0     | 10    | 20    | 80    |
   +===+=======+=======+=======+=======+=======+=======+=======+=======+
   |   | reno  |       |       |       | dctcp |       |       |       |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |1  | 0.42  | 0.42  | 0.38  | 0.33  | 0.54  | 0.53  | 0.58  | 0.62  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |5  | 2.00  | 1.50  | 1.47  | 1.49  | 2.79  | 3.28  | 3.28  | 3.06  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |10 | 3.62  | 2.19  | 1.92  | 2.07  | 5.95  | 7.35  | 7.53  | 6.87  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |50 | 7.80  | 6.96  | 6.91  | 8.15  | 40.04 | 38.98 | 37.41 | 31.25 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |100| 13.40 | 13.20 | 10.37 | 16.04 | 82.28 | 72.23 | 70.72 | 61.88 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+

      Table 44: reno-dctcp Mean TCP Throughput (Mbit); Columns: netem
       bi-directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)


   +---+-----+-----+-------+-------+-----------+-------+-------+-------+
   |   |0    |10   | 20    | 80    | 0         | 10    | 20    | 80    |
   +===+=====+=====+=======+=======+===========+=======+=======+=======+
   |   |reno |     |       |       | dctcp-sce |       |       |       |
   +---+-----+-----+-------+-------+-----------+-------+-------+-------+
   |1  |0.47 |0.48 | 0.48  | 0.24  | 0.49      | 0.47  | 0.47  | 0.66  |
   +---+-----+-----+-------+-------+-----------+-------+-------+-------+
   |5  |2.50 |3.15 | 3.64  | 2.92  | 2.28      | 1.59  | 1.07  | 1.10  |
   +---+-----+-----+-------+-------+-----------+-------+-------+-------+
   |10 |4.53 |6.77 | 7.30  | 5.18  | 5.04      | 2.65  | 1.91  | 2.55  |
   +---+-----+-----+-------+-------+-----------+-------+-------+-------+
   |50 |26.20|35.85| 34.81 | 22.99 | 21.62     | 11.46 | 11.45 | 19.58 |
   +---+-----+-----+-------+-------+-----------+-------+-------+-------+
   |100|64.59|71.71| 71.03 | 59.15 | 31.06     | 22.61 | 20.74 | 17.50 |
   +---+-----+-----+-------+-------+-----------+-------+-------+-------+

       Table 45: reno-dctcp-sce Mean TCP Throughput (Mbit); Columns:
       netem bi- directional Delay (ms); Rows: Cake-limited Bandwidth
                                   (Mbit)












Heist, et al.            Expires 4 January 2020                [Page 32]


Internet-Draft               sceonetwotests                    July 2019


   +---+----------+-----+-----+-----+----------+-------+-------+-------+
   |   | 0        |10   |20   |80   | 0        | 10    | 20    | 80    |
   +===+==========+=====+=====+=====+==========+=======+=======+=======+
   |   | reno-sce |     |     |     | reno-sce |       |       |       |
   +---+----------+-----+-----+-----+----------+-------+-------+-------+
   |1  | 0.47     |0.48 |0.50 |0.41 | 0.49     | 0.48  | 0.45  | 0.41  |
   +---+----------+-----+-----+-----+----------+-------+-------+-------+
   |5  | 2.39     |2.19 |2.04 |1.81 | 2.39     | 2.15  | 1.85  | 1.97  |
   +---+----------+-----+-----+-----+----------+-------+-------+-------+
   |10 | 4.77     |4.13 |3.90 |3.65 | 4.79     | 4.21  | 4.05  | 4.16  |
   +---+----------+-----+-----+-----+----------+-------+-------+-------+
   |50 | 23.90    |23.79|21.48|17.40| 23.92    | 23.94 | 25.97 | 21.52 |
   +---+----------+-----+-----+-----+----------+-------+-------+-------+
   |100| 48.57    |54.33|48.58|47.14| 47.10    | 40.97 | 46.49 | 41.08 |
   +---+----------+-----+-----+-----+----------+-------+-------+-------+

      Table 46: reno-sce-reno-sce Mean TCP Throughput (Mbit); Columns:
       netem bi- directional Delay (ms); Rows: Cake-limited Bandwidth
                                   (Mbit)


   +---+----------+-----+------+-------+-------+-------+-------+-------+
   |   | 0        | 10  | 20   | 80    | 0     | 10    | 20    | 80    |
   +===+==========+=====+======+=======+=======+=======+=======+=======+
   |   | reno-sce |     |      |       | dctcp |       |       |       |
   +---+----------+-----+------+-------+-------+-------+-------+-------+
   |1  | 0.41     | 0.41| 0.38 | 0.28  | 0.55  | 0.55  | 0.58  | 0.66  |
   +---+----------+-----+------+-------+-------+-------+-------+-------+
   |5  | 1.87     | 1.39| 1.06 | 0.67  | 2.91  | 3.38  | 3.69  | 3.96  |
   +---+----------+-----+------+-------+-------+-------+-------+-------+
   |10 | 3.69     | 2.43| 2.03 | 1.17  | 5.88  | 7.08  | 7.37  | 7.96  |
   +---+----------+-----+------+-------+-------+-------+-------+-------+
   |50 | 6.49     | 3.69| 3.98 | 9.37  | 41.35 | 41.62 | 39.72 | 30.90 |
   +---+----------+-----+------+-------+-------+-------+-------+-------+
   |100| 7.56     | 6.25| 6.13 | 16.00 | 88.12 | 76.49 | 72.46 | 62.73 |
   +---+----------+-----+------+-------+-------+-------+-------+-------+

       Table 47: reno-sce-dctcp Mean TCP Throughput (Mbit); Columns:
       netem bi- directional Delay (ms); Rows: Cake-limited Bandwidth
                                   (Mbit)











Heist, et al.            Expires 4 January 2020                [Page 33]


Internet-Draft               sceonetwotests                    July 2019


   +---+----------+-----+-----+-----+-----------+------+-------+-------+
   |   | 0        |10   |20   |80   | 0         | 10   | 20    | 80    |
   +===+==========+=====+=====+=====+===========+======+=======+=======+
   |   | reno-sce |     |     |     | dctcp-sce |      |       |       |
   +---+----------+-----+-----+-----+-----------+------+-------+-------+
   |1  | 0.47     |0.47 |0.49 |0.42 | 0.48      | 0.48 | 0.46  | 0.40  |
   +---+----------+-----+-----+-----+-----------+------+-------+-------+
   |5  | 2.35     |2.10 |1.91 |2.27 | 2.43      | 2.20 | 1.94  | 1.38  |
   +---+----------+-----+-----+-----+-----------+------+-------+-------+
   |10 | 4.78     |4.37 |4.89 |4.74 | 4.78      | 3.78 | 2.97  | 2.62  |
   +---+----------+-----+-----+-----+-----------+------+-------+-------+
   |50 | 27.23    |39.56|40.95|25.72| 20.59     | 8.16 | 6.56  | 13.56 |
   +---+----------+-----+-----+-----+-----------+------+-------+-------+
   |100| 74.00    |82.84|79.48|67.86| 21.65     | 12.49| 15.53 | 11.94 |
   +---+----------+-----+-----+-----+-----------+------+-------+-------+

     Table 48: reno-sce-dctcp-sce Mean TCP Throughput (Mbit); Columns:
       netem bi- directional Delay (ms); Rows: Cake-limited Bandwidth
                                   (Mbit)


   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |   | 0     | 10    | 20    | 80    | 0     | 10    | 20    | 80    |
   +===+=======+=======+=======+=======+=======+=======+=======+=======+
   |   | dctcp |       |       |       | dctcp |       |       |       |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |1  | 0.48  | 0.48  | 0.48  | 0.47  | 0.48  | 0.48  | 0.47  | 0.47  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |5  | 2.38  | 2.35  | 2.35  | 2.30  | 2.40  | 2.43  | 2.42  | 2.32  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |10 | 4.74  | 4.76  | 4.73  | 4.33  | 4.82  | 4.79  | 4.72  | 4.63  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |50 | 24.18 | 22.36 | 22.40 | 13.88 | 23.63 | 24.65 | 23.05 | 26.04 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |100| 42.61 | 32.42 | 25.55 | 43.30 | 53.04 | 56.18 | 59.67 | 35.60 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+

      Table 49: dctcp-dctcp Mean TCP Throughput (Mbit); Columns: netem
       bi-directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)












Heist, et al.            Expires 4 January 2020                [Page 34]


Internet-Draft               sceonetwotests                    July 2019


   +---+-------+-------+-------+-------+-----------+-----+------+------+
   |   | 0     | 10    | 20    | 80    | 0         | 10  | 20   | 80   |
   +===+=======+=======+=======+=======+===========+=====+======+======+
   |   | dctcp |       |       |       | dctcp-sce |     |      |      |
   +---+-------+-------+-------+-------+-----------+-----+------+------+
   |1  | 0.56  | 0.56  | 0.58  | 0.68  | 0.40      | 0.41| 0.37 | 0.27 |
   +---+-------+-------+-------+-------+-----------+-----+------+------+
   |5  | 2.89  | 2.38  | 3.66  | 3.91  | 1.90      | 2.54| 1.09 | 0.67 |
   +---+-------+-------+-------+-------+-----------+-----+------+------+
   |10 | 5.97  | 5.93  | 7.55  | 8.00  | 3.60      | 3.58| 1.85 | 1.05 |
   +---+-------+-------+-------+-------+-----------+-----+------+------+
   |50 | 41.35 | 41.32 | 39.50 | 31.56 | 6.47      | 3.79| 3.92 | 9.96 |
   +---+-------+-------+-------+-------+-----------+-----+------+------+
   |100| 89.09 | 76.31 | 73.53 | 63.92 | 6.60      | 6.36| 4.97 | 9.40 |
   +---+-------+-------+-------+-------+-----------+-----+------+------+

       Table 50: dctcp-dctcp-sce Mean TCP Throughput (Mbit); Columns:
       netem bi- directional Delay (ms); Rows: Cake-limited Bandwidth
                                   (Mbit)


   +---+-----------+-----+-----+-----+-----------+-----+-------+-------+
   |   | 0         |10   |20   |80   | 0         |10   | 20    | 80    |
   +===+===========+=====+=====+=====+===========+=====+=======+=======+
   |   | dctcp-sce |     |     |     | dctcp-sce |     |       |       |
   +---+-----------+-----+-----+-----+-----------+-----+-------+-------+
   |1  | 0.50      |0.48 |0.49 |0.40 | 0.46      |0.48 | 0.47  | 0.41  |
   +---+-----------+-----+-----+-----+-----------+-----+-------+-------+
   |5  | 2.40      |2.12 |1.90 |1.65 | 2.39      |2.14 | 1.92  | 1.58  |
   +---+-----------+-----+-----+-----+-----------+-----+-------+-------+
   |10 | 4.78      |3.91 |3.45 |3.71 | 4.79      |3.92 | 3.59  | 3.33  |
   +---+-----------+-----+-----+-----+-----------+-----+-------+-------+
   |50 | 23.65     |24.33|22.34|21.85| 24.19     |23.17| 24.15 | 21.08 |
   +---+-----------+-----+-----+-----+-----------+-----+-------+-------+
   |100| 53.54     |59.02|54.68|46.28| 42.10     |36.29| 40.24 | 43.95 |
   +---+-----------+-----+-----+-----+-----------+-----+-------+-------+

         Table 51: dctcp-sce-dctcp-sce Mean TCP Throughput (Mbit);
       Columns: netem bi- directional Delay (ms); Rows: Cake-limited
                              Bandwidth (Mbit)











Heist, et al.            Expires 4 January 2020                [Page 35]


Internet-Draft               sceonetwotests                    July 2019


A.5.  Two-Flow TCP Throughput (Cake "triple-isolate")

   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |   | 0     | 10    | 20    | 80    | 0     | 10    | 20    | 80    |
   +===+=======+=======+=======+=======+=======+=======+=======+=======+
   |   | cubic |       |       |       | cubic |       |       |       |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |1  | 0.48  | 0.48  | 0.48  | 0.46  | 0.48  | 0.48  | 0.48  | 0.46  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |5  | 2.39  | 2.39  | 2.39  | 2.20  | 2.39  | 2.39  | 2.36  | 2.21  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |10 | 4.78  | 4.74  | 4.80  | 4.42  | 4.78  | 4.79  | 4.70  | 4.19  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |50 | 23.91 | 23.82 | 23.59 | 20.89 | 23.91 | 23.83 | 23.56 | 22.55 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |100| 47.83 | 47.40 | 46.89 | 43.30 | 47.82 | 47.40 | 47.48 | 43.60 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+

      Table 52: cubic-cubic Mean TCP Throughput (Mbit); Columns: netem
       bi-directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)


   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |   | 0     | 10    | 20    | 80    | 0     | 10    | 20    | 80    |
   +===+=======+=======+=======+=======+=======+=======+=======+=======+
   |   | cubic |       |       |       | reno  |       |       |       |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |1  | 0.48  | 0.48  | 0.48  | 0.46  | 0.48  | 0.48  | 0.48  | 0.45  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |5  | 2.39  | 2.39  | 2.48  | 2.11  | 2.39  | 2.39  | 2.18  | 2.16  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |10 | 4.78  | 4.71  | 4.81  | 4.43  | 4.78  | 4.80  | 4.60  | 4.20  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |50 | 23.91 | 24.24 | 24.11 | 23.11 | 23.91 | 23.42 | 22.23 | 17.99 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |100| 47.83 | 48.65 | 48.14 | 48.87 | 47.83 | 46.14 | 43.84 | 35.92 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+

      Table 53: cubic-reno Mean TCP Throughput (Mbit); Columns: netem
       bi-directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)











Heist, et al.            Expires 4 January 2020                [Page 36]


Internet-Draft               sceonetwotests                    July 2019


   +---+-----+------+-------+-------+----------+-------+-------+-------+
   |   |0    | 10   | 20    | 80    | 0        | 10    | 20    | 80    |
   +===+=====+======+=======+=======+==========+=======+=======+=======+
   |   |cubic|      |       |       | reno-sce |       |       |       |
   +---+-----+------+-------+-------+----------+-------+-------+-------+
   |1  |0.48 | 0.48 | 0.48  | 0.57  | 0.48     | 0.48  | 0.48  | 0.32  |
   +---+-----+------+-------+-------+----------+-------+-------+-------+
   |5  |2.39 | 2.70 | 2.87  | 3.40  | 2.39     | 2.00  | 1.75  | 1.00  |
   +---+-----+------+-------+-------+----------+-------+-------+-------+
   |10 |4.78 | 5.60 | 5.38  | 4.56  | 4.78     | 3.75  | 3.79  | 4.09  |
   +---+-----+------+-------+-------+----------+-------+-------+-------+
   |50 |23.92| 24.11| 23.51 | 20.30 | 23.90    | 23.56 | 23.72 | 24.27 |
   +---+-----+------+-------+-------+----------+-------+-------+-------+
   |100|47.83| 47.45| 46.41 | 42.39 | 47.81    | 47.71 | 48.22 | 48.49 |
   +---+-----+------+-------+-------+----------+-------+-------+-------+

       Table 54: cubic-reno-sce Mean TCP Throughput (Mbit); Columns:
       netem bi- directional Delay (ms); Rows: Cake-limited Bandwidth
                                   (Mbit)


   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |   | 0     | 10    | 20    | 80    | 0     | 10    | 20    | 80    |
   +===+=======+=======+=======+=======+=======+=======+=======+=======+
   |   | cubic |       |       |       | dctcp |       |       |       |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |1  | 0.48  | 0.48  | 0.48  | 0.44  | 0.48  | 0.48  | 0.48  | 0.50  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |5  | 2.39  | 2.38  | 2.34  | 2.16  | 2.39  | 2.40  | 2.41  | 2.35  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |10 | 4.78  | 4.68  | 4.77  | 4.38  | 4.78  | 4.85  | 4.71  | 4.44  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |50 | 23.91 | 23.86 | 23.36 | 21.81 | 23.91 | 23.68 | 23.58 | 21.10 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |100| 47.84 | 47.77 | 46.77 | 47.27 | 47.82 | 46.94 | 47.30 | 40.48 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+

      Table 55: cubic-dctcp Mean TCP Throughput (Mbit); Columns: netem
       bi-directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)












Heist, et al.            Expires 4 January 2020                [Page 37]


Internet-Draft               sceonetwotests                    July 2019


   +---+-----+-----+-------+-------+-----------+-------+-------+-------+
   |   |0    |10   | 20    | 80    | 0         | 10    | 20    | 80    |
   +===+=====+=====+=======+=======+===========+=======+=======+=======+
   |   |cubic|     |       |       | dctcp-sce |       |       |       |
   +---+-----+-----+-------+-------+-----------+-------+-------+-------+
   |1  |0.48 |0.48 | 0.48  | 0.58  | 0.48      | 0.48  | 0.48  | 0.31  |
   +---+-----+-----+-------+-------+-----------+-------+-------+-------+
   |5  |2.39 |2.69 | 2.94  | 3.58  | 2.39      | 2.02  | 1.68  | 0.74  |
   +---+-----+-----+-------+-------+-----------+-------+-------+-------+
   |10 |4.78 |5.81 | 6.15  | 6.93  | 4.78      | 3.57  | 3.03  | 1.62  |
   +---+-----+-----+-------+-------+-----------+-------+-------+-------+
   |50 |24.02|27.16| 26.07 | 20.95 | 23.80     | 20.14 | 19.16 | 21.20 |
   +---+-----+-----+-------+-------+-----------+-------+-------+-------+
   |100|47.85|49.02| 47.67 | 42.50 | 47.80     | 46.02 | 45.94 | 42.97 |
   +---+-----+-----+-------+-------+-----------+-------+-------+-------+

       Table 56: cubic-dctcp-sce Mean TCP Throughput (Mbit); Columns:
       netem bi- directional Delay (ms); Rows: Cake-limited Bandwidth
                                   (Mbit)


   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |   | 0     | 10    | 20    | 80    | 0     | 10    | 20    | 80    |
   +===+=======+=======+=======+=======+=======+=======+=======+=======+
   |   | reno  |       |       |       | reno  |       |       |       |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |1  | 0.48  | 0.48  | 0.48  | 0.46  | 0.48  | 0.48  | 0.48  | 0.46  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |5  | 2.39  | 2.37  | 2.31  | 2.04  | 2.39  | 2.35  | 2.33  | 2.01  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |10 | 4.78  | 4.81  | 4.60  | 4.25  | 4.78  | 4.74  | 4.60  | 4.33  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |50 | 23.91 | 23.77 | 23.07 | 17.70 | 23.91 | 23.77 | 22.92 | 17.72 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |100| 47.83 | 47.39 | 45.06 | 37.23 | 47.83 | 47.54 | 44.58 | 35.40 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+

       Table 57: reno-reno Mean TCP Throughput (Mbit); Columns: netem
       bi-directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)












Heist, et al.            Expires 4 January 2020                [Page 38]


Internet-Draft               sceonetwotests                    July 2019


   +---+-----+------+-------+-------+----------+-------+-------+-------+
   |   |0    | 10   | 20    | 80    | 0        | 10    | 20    | 80    |
   +===+=====+======+=======+=======+==========+=======+=======+=======+
   |   |reno |      |       |       | reno-sce |       |       |       |
   +---+-----+------+-------+-------+----------+-------+-------+-------+
   |1  |0.48 | 0.48 | 0.48  | 0.55  | 0.48     | 0.48  | 0.48  | 0.32  |
   +---+-----+------+-------+-------+----------+-------+-------+-------+
   |5  |2.39 | 2.61 | 2.76  | 2.91  | 2.39     | 2.01  | 1.76  | 1.16  |
   +---+-----+------+-------+-------+----------+-------+-------+-------+
   |10 |4.78 | 5.39 | 5.44  | 4.34  | 4.78     | 3.84  | 3.76  | 4.24  |
   +---+-----+------+-------+-------+----------+-------+-------+-------+
   |50 |23.93| 23.81| 22.02 | 17.75 | 23.90    | 23.72 | 24.79 | 25.80 |
   +---+-----+------+-------+-------+----------+-------+-------+-------+
   |100|47.83| 46.09| 42.73 | 35.26 | 47.82    | 49.03 | 50.97 | 50.07 |
   +---+-----+------+-------+-------+----------+-------+-------+-------+

        Table 58: reno-reno-sce Mean TCP Throughput (Mbit); Columns:
       netem bi- directional Delay (ms); Rows: Cake-limited Bandwidth
                                   (Mbit)


   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |   | 0     | 10    | 20    | 80    | 0     | 10    | 20    | 80    |
   +===+=======+=======+=======+=======+=======+=======+=======+=======+
   |   | reno  |       |       |       | dctcp |       |       |       |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |1  | 0.48  | 0.48  | 0.48  | 0.43  | 0.48  | 0.48  | 0.48  | 0.50  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |5  | 2.39  | 2.30  | 2.27  | 1.88  | 2.39  | 2.47  | 2.47  | 2.44  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |10 | 4.78  | 4.73  | 4.66  | 4.19  | 4.78  | 4.79  | 4.78  | 4.30  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |50 | 23.91 | 23.45 | 21.71 | 17.98 | 23.91 | 24.13 | 24.75 | 21.47 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |100| 47.82 | 46.42 | 43.70 | 35.62 | 47.81 | 48.18 | 49.48 | 42.19 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+

      Table 59: reno-dctcp Mean TCP Throughput (Mbit); Columns: netem
       bi-directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)












Heist, et al.            Expires 4 January 2020                [Page 39]


Internet-Draft               sceonetwotests                    July 2019


   +---+-----+-----+-------+-------+-----------+-------+-------+-------+
   |   |0    |10   | 20    | 80    | 0         | 10    | 20    | 80    |
   +===+=====+=====+=======+=======+===========+=======+=======+=======+
   |   |reno |     |       |       | dctcp-sce |       |       |       |
   +---+-----+-----+-------+-------+-----------+-------+-------+-------+
   |1  |0.48 |0.48 | 0.48  | 0.54  | 0.48      | 0.48  | 0.48  | 0.33  |
   +---+-----+-----+-------+-------+-----------+-------+-------+-------+
   |5  |2.39 |2.60 | 2.81  | 3.25  | 2.39      | 2.02  | 1.69  | 0.75  |
   +---+-----+-----+-------+-------+-----------+-------+-------+-------+
   |10 |4.78 |5.65 | 6.18  | 6.09  | 4.78      | 3.60  | 2.97  | 1.90  |
   +---+-----+-----+-------+-------+-----------+-------+-------+-------+
   |50 |24.05|27.29| 24.37 | 18.32 | 23.77     | 19.78 | 19.76 | 22.57 |
   +---+-----+-----+-------+-------+-----------+-------+-------+-------+
   |100|47.87|47.75| 44.23 | 35.55 | 47.79     | 46.27 | 47.20 | 42.70 |
   +---+-----+-----+-------+-------+-----------+-------+-------+-------+

       Table 60: reno-dctcp-sce Mean TCP Throughput (Mbit); Columns:
       netem bi- directional Delay (ms); Rows: Cake-limited Bandwidth
                                   (Mbit)


   +---+----------+-----+-----+-----+----------+-------+-------+-------+
   |   | 0        |10   |20   |80   | 0        | 10    | 20    | 80    |
   +===+==========+=====+=====+=====+==========+=======+=======+=======+
   |   | reno-sce |     |     |     | reno-sce |       |       |       |
   +---+----------+-----+-----+-----+----------+-------+-------+-------+
   |1  | 0.48     |0.48 |0.48 |0.34 | 0.48     | 0.48  | 0.48  | 0.33  |
   +---+----------+-----+-----+-----+----------+-------+-------+-------+
   |5  | 2.39     |2.05 |1.80 |1.75 | 2.39     | 2.03  | 1.89  | 1.62  |
   +---+----------+-----+-----+-----+----------+-------+-------+-------+
   |10 | 4.78     |4.15 |4.14 |4.22 | 4.78     | 4.15  | 4.12  | 4.31  |
   +---+----------+-----+-----+-----+----------+-------+-------+-------+
   |50 | 23.91    |23.66|23.54|22.01| 23.90    | 23.69 | 23.24 | 22.75 |
   +---+----------+-----+-----+-----+----------+-------+-------+-------+
   |100| 47.82    |47.66|47.52|45.05| 47.82    | 47.66 | 47.54 | 44.97 |
   +---+----------+-----+-----+-----+----------+-------+-------+-------+

      Table 61: reno-sce-reno-sce Mean TCP Throughput (Mbit); Columns:
       netem bi- directional Delay (ms); Rows: Cake-limited Bandwidth
                                   (Mbit)











Heist, et al.            Expires 4 January 2020                [Page 40]


Internet-Draft               sceonetwotests                    July 2019


   +---+----------+-----+------+-------+-------+-------+-------+-------+
   |   | 0        |10   | 20   | 80    | 0     | 10    | 20    | 80    |
   +===+==========+=====+======+=======+=======+=======+=======+=======+
   |   | reno-sce |     |      |       | dctcp |       |       |       |
   +---+----------+-----+------+-------+-------+-------+-------+-------+
   |1  | 0.48     |0.48 | 0.48 | 0.32  | 0.48  | 0.48  | 0.48  | 0.61  |
   +---+----------+-----+------+-------+-------+-------+-------+-------+
   |5  | 2.39     |1.98 | 1.71 | 0.91  | 2.39  | 2.78  | 2.95  | 3.60  |
   +---+----------+-----+------+-------+-------+-------+-------+-------+
   |10 | 4.78     |3.75 | 3.85 | 3.99  | 4.78  | 5.64  | 5.41  | 4.90  |
   +---+----------+-----+------+-------+-------+-------+-------+-------+
   |50 | 23.91    |23.71| 23.51| 22.56 | 23.91 | 23.99 | 23.57 | 20.79 |
   +---+----------+-----+------+-------+-------+-------+-------+-------+
   |100| 47.83    |48.07| 47.63| 46.93 | 47.83 | 47.03 | 46.40 | 39.48 |
   +---+----------+-----+------+-------+-------+-------+-------+-------+

       Table 62: reno-sce-dctcp Mean TCP Throughput (Mbit); Columns:
       netem bi- directional Delay (ms); Rows: Cake-limited Bandwidth
                                   (Mbit)


   +---+----------+-----+-----+-----+-----------+------+-------+-------+
   |   | 0        |10   |20   |80   | 0         | 10   | 20    | 80    |
   +===+==========+=====+=====+=====+===========+======+=======+=======+
   |   | reno-sce |     |     |     | dctcp-sce |      |       |       |
   +---+----------+-----+-----+-----+-----------+------+-------+-------+
   |1  | 0.48     |0.48 |0.48 |0.33 | 0.48      | 0.48 | 0.48  | 0.34  |
   +---+----------+-----+-----+-----+-----------+------+-------+-------+
   |5  | 2.39     |2.01 |1.86 |1.82 | 2.39      | 2.05 | 1.73  | 1.03  |
   +---+----------+-----+-----+-----+-----------+------+-------+-------+
   |10 | 4.78     |4.24 |4.60 |6.33 | 4.78      | 3.95 | 3.36  | 1.97  |
   +---+----------+-----+-----+-----+-----------+------+-------+-------+
   |50 | 24.01    |26.91|27.21|23.75| 23.81     | 18.74| 16.94 | 18.75 |
   +---+----------+-----+-----+-----+-----------+------+-------+-------+
   |100| 47.85    |49.17|49.32|46.19| 47.81     | 45.83| 44.78 | 40.59 |
   +---+----------+-----+-----+-----+-----------+------+-------+-------+

     Table 63: reno-sce-dctcp-sce Mean TCP Throughput (Mbit); Columns:
       netem bi- directional Delay (ms); Rows: Cake-limited Bandwidth
                                   (Mbit)











Heist, et al.            Expires 4 January 2020                [Page 41]


Internet-Draft               sceonetwotests                    July 2019


   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |   | 0     | 10    | 20    | 80    | 0     | 10    | 20    | 80    |
   +===+=======+=======+=======+=======+=======+=======+=======+=======+
   |   | dctcp |       |       |       | dctcp |       |       |       |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |1  | 0.48  | 0.48  | 0.48  | 0.47  | 0.48  | 0.48  | 0.48  | 0.47  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |5  | 2.39  | 2.39  | 2.38  | 2.24  | 2.39  | 2.39  | 2.38  | 2.24  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |10 | 4.78  | 4.76  | 4.73  | 4.45  | 4.78  | 4.77  | 4.71  | 4.47  |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |50 | 23.91 | 23.70 | 23.29 | 20.37 | 23.91 | 23.70 | 23.30 | 20.80 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+
   |100| 47.73 | 47.13 | 46.71 | 39.67 | 47.73 | 47.17 | 46.73 | 41.12 |
   +---+-------+-------+-------+-------+-------+-------+-------+-------+

      Table 64: dctcp-dctcp Mean TCP Throughput (Mbit); Columns: netem
       bi-directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)


   +---+-----+-----+-------+-------+-----------+-------+-------+-------+
   |   |0    |10   | 20    | 80    | 0         | 10    | 20    | 80    |
   +===+=====+=====+=======+=======+===========+=======+=======+=======+
   |   |dctcp|     |       |       | dctcp-sce |       |       |       |
   +---+-----+-----+-------+-------+-----------+-------+-------+-------+
   |1  |0.48 |0.48 | 0.48  | 0.62  | 0.48      | 0.48  | 0.48  | 0.31  |
   +---+-----+-----+-------+-------+-----------+-------+-------+-------+
   |5  |2.39 |2.77 | 3.00  | 3.86  | 2.39      | 1.98  | 1.67  | 0.64  |
   +---+-----+-----+-------+-------+-----------+-------+-------+-------+
   |10 |4.78 |5.76 | 6.17  | 6.85  | 4.78      | 3.61  | 3.10  | 1.74  |
   +---+-----+-----+-------+-------+-----------+-------+-------+-------+
   |50 |24.01|27.30| 26.52 | 20.66 | 23.81     | 19.96 | 19.56 | 19.92 |
   +---+-----+-----+-------+-------+-----------+-------+-------+-------+
   |100|47.85|48.63| 48.11 | 40.69 | 47.77     | 46.10 | 45.60 | 38.33 |
   +---+-----+-----+-------+-------+-----------+-------+-------+-------+

       Table 65: dctcp-dctcp-sce Mean TCP Throughput (Mbit); Columns:
       netem bi- directional Delay (ms); Rows: Cake-limited Bandwidth
                                   (Mbit)












Heist, et al.            Expires 4 January 2020                [Page 42]


Internet-Draft               sceonetwotests                    July 2019


   +---+-----------+-----+-----+-----+-----------+-----+-------+-------+
   |   | 0         |10   |20   |80   | 0         |10   | 20    | 80    |
   +===+===========+=====+=====+=====+===========+=====+=======+=======+
   |   | dctcp-sce |     |     |     | dctcp-sce |     |       |       |
   +---+-----------+-----+-----+-----+-----------+-----+-------+-------+
   |1  | 0.48      |0.48 |0.48 |0.34 | 0.48      |0.48 | 0.48  | 0.34  |
   +---+-----------+-----+-----+-----+-----------+-----+-------+-------+
   |5  | 2.39      |2.04 |1.71 |1.09 | 2.39      |2.03 | 1.76  | 1.06  |
   +---+-----------+-----+-----+-----+-----------+-----+-------+-------+
   |10 | 4.78      |3.91 |3.55 |2.97 | 4.78      |4.01 | 3.59  | 2.84  |
   +---+-----------+-----+-----+-----+-----------+-----+-------+-------+
   |50 | 23.88     |21.37|20.20|19.68| 23.91     |21.09| 20.51 | 20.44 |
   +---+-----------+-----+-----+-----+-----------+-----+-------+-------+
   |100| 47.82     |45.19|43.83|36.16| 47.82     |46.37| 44.59 | 37.07 |
   +---+-----------+-----+-----+-----+-----------+-----+-------+-------+

         Table 66: dctcp-sce-dctcp-sce Mean TCP Throughput (Mbit);
       Columns: netem bi- directional Delay (ms); Rows: Cake-limited
                              Bandwidth (Mbit)


A.6.  Two-Flow TCP RTT (Cake "flowblind")

   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |   |0    | 10    | 20    | 80     | 0     | 10    | 20    | 80     |
   +===+=====+=======+=======+========+=======+=======+=======+========+
   |   |cubic|       |       |        | cubic |       |       |        |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |1  |70.73| 69.97 | 83.70 | 139.06 | 69.07 | 70.38 | 86.15 | 140.64 |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |5  |14.09| 25.54 | 35.72 | 91.62  | 14.26 | 25.99 | 35.59 | 91.28  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |10 |7.88 | 18.69 | 28.67 | 86.54  | 7.79  | 18.46 | 28.60 | 85.74  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |50 |6.53 | 16.30 | 25.55 | 82.98  | 6.47  | 16.37 | 25.66 | 83.06  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |100|6.35 | 16.40 | 25.49 | 83.27  | 6.43  | 16.29 | 25.57 | 83.36  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+

        Table 67: cubic-cubic Mean TCP RTT (ms); Columns: netem bi-
        directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)










Heist, et al.            Expires 4 January 2020                [Page 43]


Internet-Draft               sceonetwotests                    July 2019


   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |   |0    | 10    | 20    | 80     | 0     | 10    | 20    | 80     |
   +===+=====+=======+=======+========+=======+=======+=======+========+
   |   |cubic|       |       |        | reno  |       |       |        |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |1  |65.97| 71.14 | 83.63 | 139.14 | 66.25 | 72.11 | 87.70 | 140.12 |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |5  |14.00| 25.94 | 35.16 | 91.73  | 14.87 | 25.03 | 35.98 | 92.22  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |10 |7.60 | 18.82 | 28.77 | 86.37  | 7.99  | 19.39 | 29.11 | 86.39  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |50 |6.43 | 16.26 | 25.45 | 82.72  | 6.41  | 16.38 | 25.46 | 83.06  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |100|6.31 | 16.20 | 25.09 | 83.07  | 6.47  | 16.09 | 25.11 | 83.19  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+

         Table 68: cubic-reno Mean TCP RTT (ms); Columns: netem bi-
        directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)


   +---+-----+-----+------+--------+----------+-------+-------+--------+
   |   |0    |10   | 20   | 80     | 0        | 10    | 20    | 80     |
   +===+=====+=====+======+========+==========+=======+=======+========+
   |   |cubic|     |      |        | reno-sce |       |       |        |
   +---+-----+-----+------+--------+----------+-------+-------+--------+
   |1  |71.98|73.29| 93.38| 127.68 | 61.37    | 61.69 | 71.07 | 121.98 |
   +---+-----+-----+------+--------+----------+-------+-------+--------+
   |5  |14.58|25.06| 33.50| 88.85  | 11.80    | 21.16 | 32.19 | 94.96  |
   +---+-----+-----+------+--------+----------+-------+-------+--------+
   |10 |7.70 |17.86| 27.34| 85.73  | 6.98     | 18.59 | 30.43 | 90.51  |
   +---+-----+-----+------+--------+----------+-------+-------+--------+
   |50 |5.95 |15.00| 24.47| 83.61  | 6.01     | 16.71 | 26.93 | 86.54  |
   +---+-----+-----+------+--------+----------+-------+-------+--------+
   |100|6.01 |14.78| 24.44| 83.56  | 6.06     | 15.99 | 26.21 | 85.14  |
   +---+-----+-----+------+--------+----------+-------+-------+--------+

       Table 69: cubic-reno-sce Mean TCP RTT (ms); Columns: netem bi-
        directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)













Heist, et al.            Expires 4 January 2020                [Page 44]


Internet-Draft               sceonetwotests                    July 2019


   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |   |0    | 10    | 20    | 80     | 0     | 10    | 20    | 80     |
   +===+=====+=======+=======+========+=======+=======+=======+========+
   |   |cubic|       |       |        | dctcp |       |       |        |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |1  |61.63| 62.74 | 79.63 | 144.41 | 81.28 | 81.99 | 88.30 | 142.69 |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |5  |12.75| 27.02 | 38.94 | 94.68  | 18.98 | 24.23 | 33.58 | 92.59  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |10 |7.19 | 20.98 | 30.61 | 87.70  | 8.12  | 17.94 | 27.88 | 86.25  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |50 |6.84 | 16.43 | 26.24 | 83.90  | 6.38  | 16.05 | 26.01 | 84.39  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |100|6.49 | 16.34 | 26.42 | 85.08  | 6.46  | 16.42 | 26.19 | 84.83  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+

        Table 70: cubic-dctcp Mean TCP RTT (ms); Columns: netem bi-
        directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)


   +---+-----+-----+-----+--------+-----------+-------+-------+--------+
   |   |0    |10   |20   | 80     | 0         | 10    | 20    | 80     |
   +===+=====+=====+=====+========+===========+=======+=======+========+
   |   |cubic|     |     |        | dctcp-sce |       |       |        |
   +---+-----+-----+-----+--------+-----------+-------+-------+--------+
   |1  |73.64|72.10|92.35| 127.57 | 60.95     | 63.18 | 73.14 | 117.81 |
   +---+-----+-----+-----+--------+-----------+-------+-------+--------+
   |5  |14.10|23.88|32.68| 89.27  | 11.73     | 21.25 | 32.24 | 95.10  |
   +---+-----+-----+-----+--------+-----------+-------+-------+--------+
   |10 |7.99 |17.94|27.11| 85.58  | 6.94      | 18.23 | 30.11 | 91.01  |
   +---+-----+-----+-----+--------+-----------+-------+-------+--------+
   |50 |5.91 |14.97|24.16| 83.11  | 5.97      | 16.67 | 26.92 | 86.08  |
   +---+-----+-----+-----+--------+-----------+-------+-------+--------+
   |100|6.13 |14.98|24.27| 82.93  | 6.08      | 16.17 | 26.17 | 84.85  |
   +---+-----+-----+-----+--------+-----------+-------+-------+--------+

      Table 71: cubic-dctcp-sce Mean TCP RTT (ms); Columns: netem bi-
        directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)













Heist, et al.            Expires 4 January 2020                [Page 45]


Internet-Draft               sceonetwotests                    July 2019


   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |   |0    | 10    | 20    | 80     | 0     | 10    | 20    | 80     |
   +===+=====+=======+=======+========+=======+=======+=======+========+
   |   |reno |       |       |        | reno  |       |       |        |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |1  |64.31| 68.79 | 84.19 | 141.79 | 66.79 | 71.57 | 83.55 | 140.03 |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |5  |14.46| 25.39 | 35.62 | 92.66  | 14.61 | 25.49 | 35.57 | 92.29  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |10 |8.15 | 18.91 | 29.00 | 86.57  | 8.08  | 18.83 | 29.11 | 86.26  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |50 |6.49 | 16.43 | 24.97 | 82.44  | 6.44  | 16.23 | 25.06 | 82.48  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |100|6.43 | 16.20 | 24.68 | 82.39  | 6.50  | 16.18 | 24.91 | 82.39  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+

         Table 72: reno-reno Mean TCP RTT (ms); Columns: netem bi-
        directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)


   +---+-----+-----+------+--------+----------+-------+-------+--------+
   |   |0    |10   | 20   | 80     | 0        | 10    | 20    | 80     |
   +===+=====+=====+======+========+==========+=======+=======+========+
   |   |reno |     |      |        | reno-sce |       |       |        |
   +---+-----+-----+------+--------+----------+-------+-------+--------+
   |1  |68.15|70.79| 91.27| 130.38 | 62.79    | 62.52 | 75.28 | 122.99 |
   +---+-----+-----+------+--------+----------+-------+-------+--------+
   |5  |14.95|23.90| 34.12| 89.47  | 12.89    | 21.95 | 33.51 | 95.43  |
   +---+-----+-----+------+--------+----------+-------+-------+--------+
   |10 |8.05 |18.27| 28.12| 85.51  | 7.22     | 18.71 | 29.40 | 90.04  |
   +---+-----+-----+------+--------+----------+-------+-------+--------+
   |50 |5.99 |14.84| 24.17| 83.36  | 6.09     | 16.08 | 25.91 | 84.37  |
   +---+-----+-----+------+--------+----------+-------+-------+--------+
   |100|6.19 |14.61| 24.02| 83.03  | 6.05     | 15.50 | 25.06 | 83.81  |
   +---+-----+-----+------+--------+----------+-------+-------+--------+

       Table 73: reno-reno-sce Mean TCP RTT (ms); Columns: netem bi-
        directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)













Heist, et al.            Expires 4 January 2020                [Page 46]


Internet-Draft               sceonetwotests                    July 2019


   +---+-----+-----+-------+--------+--------+--------+-------+--------+
   |   |0    |10   | 20    | 80     | 0      | 10     | 20    | 80     |
   +===+=====+=====+=======+========+========+========+=======+========+
   |   |reno |     |       |        | dctcp  |        |       |        |
   +---+-----+-----+-------+--------+--------+--------+-------+--------+
   |1  |59.96|62.40| 83.02 | 144.86 | 114.59 | 108.05 | 87.97 | 143.70 |
   +---+-----+-----+-------+--------+--------+--------+-------+--------+
   |5  |12.78|27.64| 38.54 | 95.38  | 22.21  | 24.00  | 33.12 | 92.06  |
   +---+-----+-----+-------+--------+--------+--------+-------+--------+
   |10 |8.10 |20.18| 30.66 | 88.42  | 8.31   | 18.10  | 27.56 | 86.64  |
   +---+-----+-----+-------+--------+--------+--------+-------+--------+
   |50 |6.87 |16.58| 26.04 | 83.56  | 6.48   | 16.36  | 25.81 | 83.38  |
   +---+-----+-----+-------+--------+--------+--------+-------+--------+
   |100|6.38 |16.54| 26.00 | 84.56  | 6.48   | 16.43  | 25.93 | 83.75  |
   +---+-----+-----+-------+--------+--------+--------+-------+--------+

         Table 74: reno-dctcp Mean TCP RTT (ms); Columns: netem bi-
        directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)


   +---+-----+-----+-----+--------+-----------+-------+-------+--------+
   |   |0    |10   |20   | 80     | 0         | 10    | 20    | 80     |
   +===+=====+=====+=====+========+===========+=======+=======+========+
   |   |reno |     |     |        | dctcp-sce |       |       |        |
   +---+-----+-----+-----+--------+-----------+-------+-------+--------+
   |1  |67.25|70.19|93.80| 131.16 | 63.59     | 63.29 | 75.04 | 120.28 |
   +---+-----+-----+-----+--------+-----------+-------+-------+--------+
   |5  |15.01|26.28|34.17| 89.37  | 12.68     | 23.72 | 33.43 | 94.57  |
   +---+-----+-----+-----+--------+-----------+-------+-------+--------+
   |10 |7.89 |18.30|27.91| 85.30  | 7.11      | 18.84 | 29.84 | 90.39  |
   +---+-----+-----+-----+--------+-----------+-------+-------+--------+
   |50 |6.09 |14.74|23.74| 82.58  | 6.07      | 16.17 | 25.95 | 84.17  |
   +---+-----+-----+-----+--------+-----------+-------+-------+--------+
   |100|5.78 |14.32|23.62| 82.36  | 5.95      | 15.20 | 24.81 | 83.98  |
   +---+-----+-----+-----+--------+-----------+-------+-------+--------+

       Table 75: reno-dctcp-sce Mean TCP RTT (ms); Columns: netem bi-
        directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)













Heist, et al.            Expires 4 January 2020                [Page 47]


Internet-Draft               sceonetwotests                    July 2019


   +---+----------+-----+-----+--------+----------+-----+-----+--------+
   |   | 0        |10   |20   | 80     | 0        |10   |20   | 80     |
   +===+==========+=====+=====+========+==========+=====+=====+========+
   |   | reno-sce |     |     |        | reno-sce |     |     |        |
   +---+----------+-----+-----+--------+----------+-----+-----+--------+
   |1  | 49.45    |50.66|50.71| 114.04 | 50.74    |50.87|50.54| 113.68 |
   +---+----------+-----+-----+--------+----------+-----+-----+--------+
   |5  | 9.58     |19.47|30.20| 88.97  | 9.66     |19.40|30.39| 89.81  |
   +---+----------+-----+-----+--------+----------+-----+-----+--------+
   |10 | 6.55     |16.99|27.00| 85.35  | 6.55     |16.61|26.91| 85.29  |
   +---+----------+-----+-----+--------+----------+-----+-----+--------+
   |50 | 4.46     |13.52|23.27| 82.93  | 4.54     |13.35|23.26| 83.11  |
   +---+----------+-----+-----+--------+----------+-----+-----+--------+
   |100| 4.40     |14.06|23.83| 82.74  | 4.21     |14.07|23.74| 82.71  |
   +---+----------+-----+-----+--------+----------+-----+-----+--------+

     Table 76: reno-sce-reno-sce Mean TCP RTT (ms); Columns: netem bi-
        directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)


   +---+----------+-----+-----+--------+------+-------+-------+--------+
   |   | 0        |10   |20   | 80     | 0    | 10    | 20    | 80     |
   +===+==========+=====+=====+========+======+=======+=======+========+
   |   | reno-sce |     |     |        | dctcp|       |       |        |
   +---+----------+-----+-----+--------+------+-------+-------+--------+
   |1  | 53.35    |54.29|82.98| 132.00 | 93.33| 94.62 | 84.60 | 141.33 |
   +---+----------+-----+-----+--------+------+-------+-------+--------+
   |5  | 11.15    |21.45|31.72| 93.81  | 18.29| 23.96 | 33.21 | 90.14  |
   +---+----------+-----+-----+--------+------+-------+-------+--------+
   |10 | 7.04     |18.09|30.04| 92.23  | 8.00 | 17.48 | 27.41 | 86.25  |
   +---+----------+-----+-----+--------+------+-------+-------+--------+
   |50 | 6.15     |16.43|27.42| 85.57  | 6.32 | 15.91 | 25.72 | 83.84  |
   +---+----------+-----+-----+--------+------+-------+-------+--------+
   |100| 6.29     |16.54|26.52| 85.06  | 6.41 | 16.26 | 26.07 | 83.57  |
   +---+----------+-----+-----+--------+------+-------+-------+--------+

       Table 77: reno-sce-dctcp Mean TCP RTT (ms); Columns: netem bi-
        directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)













Heist, et al.            Expires 4 January 2020                [Page 48]


Internet-Draft               sceonetwotests                    July 2019


   +---+----------+-----+-----+-------+-----------+-----+-----+--------+
   |   | 0        |10   |20   | 80    | 0         |10   |20   | 80     |
   +===+==========+=====+=====+=======+===========+=====+=====+========+
   |   | reno-sce |     |     |       | dctcp-sce |     |     |        |
   +---+----------+-----+-----+-------+-----------+-----+-----+--------+
   |1  | 49.87    |51.12|50.45| 113.39| 50.23     |50.54|50.13| 112.50 |
   +---+----------+-----+-----+-------+-----------+-----+-----+--------+
   |5  | 9.57     |19.48|30.47| 88.94 | 9.64      |19.11|29.76| 91.18  |
   +---+----------+-----+-----+-------+-----------+-----+-----+--------+
   |10 | 6.58     |16.86|27.26| 84.81 | 6.63      |16.66|27.39| 85.95  |
   +---+----------+-----+-----+-------+-----------+-----+-----+--------+
   |50 | 4.20     |12.98|22.81| 82.45 | 4.59      |14.89|24.87| 84.83  |
   +---+----------+-----+-----+-------+-----------+-----+-----+--------+
   |100| 4.15     |13.47|23.29| 82.64 | 4.11      |14.16|24.11| 83.93  |
   +---+----------+-----+-----+-------+-----------+-----+-----+--------+

       Table 78: reno-sce-dctcp-sce Mean TCP RTT (ms); Columns: netem
       bi-directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)


   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |   |0    | 10    | 20    | 80     | 0     | 10    | 20    | 80     |
   +===+=====+=======+=======+========+=======+=======+=======+========+
   |   |dctcp|       |       |        | dctcp |       |       |        |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |1  |94.39| 94.71 | 87.26 | 145.73 | 95.80 | 95.81 | 92.26 | 144.97 |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |5  |18.87| 25.91 | 35.08 | 93.41  | 19.48 | 26.10 | 34.76 | 93.83  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |10 |9.29 | 18.56 | 27.94 | 87.31  | 9.40  | 18.65 | 28.15 | 87.12  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |50 |6.78 | 16.54 | 26.18 | 84.83  | 6.74  | 16.48 | 26.21 | 84.80  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |100|6.69 | 16.43 | 25.89 | 85.15  | 6.75  | 16.30 | 25.94 | 85.35  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+

        Table 79: dctcp-dctcp Mean TCP RTT (ms); Columns: netem bi-
        directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)













Heist, et al.            Expires 4 January 2020                [Page 49]


Internet-Draft               sceonetwotests                    July 2019


   +---+-----+-----+-----+--------+-----------+-------+-------+--------+
   |   |0    |10   |20   | 80     | 0         | 10    | 20    | 80     |
   +===+=====+=====+=====+========+===========+=======+=======+========+
   |   |dctcp|     |     |        | dctcp-sce |       |       |        |
   +---+-----+-----+-----+--------+-----------+-------+-------+--------+
   |1  |91.81|93.17|83.18| 141.45 | 53.62     | 53.10 | 76.65 | 133.28 |
   +---+-----+-----+-----+--------+-----------+-------+-------+--------+
   |5  |18.22|23.79|33.56| 91.14  | 11.04     | 21.38 | 31.87 | 93.16  |
   +---+-----+-----+-----+--------+-----------+-------+-------+--------+
   |10 |8.06 |17.46|27.21| 86.24  | 7.25      | 18.04 | 29.56 | 92.76  |
   +---+-----+-----+-----+--------+-----------+-------+-------+--------+
   |50 |6.14 |15.92|25.60| 83.50  | 6.17      | 16.47 | 27.02 | 86.00  |
   +---+-----+-----+-----+--------+-----------+-------+-------+--------+
   |100|6.35 |16.04|25.95| 83.06  | 6.43      | 16.35 | 26.71 | 85.56  |
   +---+-----+-----+-----+--------+-----------+-------+-------+--------+

      Table 80: dctcp-dctcp-sce Mean TCP RTT (ms); Columns: netem bi-
        directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)


   +---+-----------+-----+-----+------+-----------+-----+-----+--------+
   |   | 0         |10   |20   |80    | 0         |10   |20   | 80     |
   +===+===========+=====+=====+======+===========+=====+=====+========+
   |   | dctcp-sce |     |     |      | dctcp-sce |     |     |        |
   +---+-----------+-----+-----+------+-----------+-----+-----+--------+
   |1  | 48.67     |49.51|50.22|115.03| 49.42     |49.95|49.96| 113.68 |
   +---+-----------+-----+-----+------+-----------+-----+-----+--------+
   |5  | 9.56      |19.62|29.79|91.63 | 9.63      |19.19|30.02| 91.44  |
   +---+-----------+-----+-----+------+-----------+-----+-----+--------+
   |10 | 6.52      |16.78|27.09|85.64 | 6.61      |16.65|27.42| 85.73  |
   +---+-----------+-----+-----+------+-----------+-----+-----+--------+
   |50 | 4.16      |13.13|22.39|82.21 | 4.18      |12.96|22.47| 82.09  |
   +---+-----------+-----+-----+------+-----------+-----+-----+--------+
   |100| 3.90      |13.02|22.61|82.16 | 3.97      |12.94|22.72| 82.04  |
   +---+-----------+-----+-----+------+-----------+-----+-----+--------+

      Table 81: dctcp-sce-dctcp-sce Mean TCP RTT (ms); Columns: netem
       bi-directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)


A.7.  Two-Flow TCP RTT (Cake "flowblind sce-single")

   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |   |0    | 10    | 20    | 80     | 0     | 10    | 20    | 80     |
   +===+=====+=======+=======+========+=======+=======+=======+========+
   |   |cubic|       |       |        | cubic |       |       |        |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |1  |68.26| 69.38 | 83.80 | 142.98 | 69.18 | 68.64 | 83.08 | 142.21 |



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   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |5  |13.86| 25.36 | 35.54 | 92.39  | 13.92 | 24.90 | 36.61 | 92.30  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |10 |8.39 | 18.95 | 28.76 | 86.67  | 8.19  | 19.22 | 28.77 | 86.23  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |50 |6.52 | 16.30 | 25.85 | 83.11  | 6.59  | 16.26 | 25.84 | 83.18  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |100|6.42 | 16.49 | 25.57 | 83.19  | 6.40  | 16.38 | 25.65 | 83.22  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+

        Table 82: cubic-cubic Mean TCP RTT (ms); Columns: netem bi-
        directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)


   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |   |0    | 10    | 20    | 80     | 0     | 10    | 20    | 80     |
   +===+=====+=======+=======+========+=======+=======+=======+========+
   |   |cubic|       |       |        | reno  |       |       |        |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |1  |65.10| 69.82 | 83.36 | 144.19 | 64.96 | 69.20 | 85.01 | 144.48 |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |5  |13.62| 25.89 | 35.86 | 92.45  | 14.26 | 25.25 | 36.40 | 93.45  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |10 |7.82 | 18.99 | 28.74 | 86.24  | 8.23  | 19.64 | 29.36 | 86.42  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |50 |6.57 | 16.15 | 25.30 | 82.60  | 6.53  | 16.17 | 25.47 | 83.21  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |100|6.46 | 16.14 | 24.89 | 83.04  | 6.54  | 16.23 | 24.88 | 83.28  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+

         Table 83: cubic-reno Mean TCP RTT (ms); Columns: netem bi-
        directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)



















Heist, et al.            Expires 4 January 2020                [Page 51]


Internet-Draft               sceonetwotests                    July 2019


   +---+-----+-----+------+--------+----------+-------+-------+--------+
   |   |0    |10   | 20   | 80     | 0        | 10    | 20    | 80     |
   +===+=====+=====+======+========+==========+=======+=======+========+
   |   |cubic|     |      |        | reno-sce |       |       |        |
   +---+-----+-----+------+--------+----------+-------+-------+--------+
   |1  |67.62|68.51| 83.34| 138.15 | 68.37    | 69.98 | 84.17 | 139.38 |
   +---+-----+-----+------+--------+----------+-------+-------+--------+
   |5  |13.56|24.05| 34.64| 91.07  | 13.81    | 24.46 | 37.77 | 96.38  |
   +---+-----+-----+------+--------+----------+-------+-------+--------+
   |10 |8.16 |18.42| 28.22| 86.47  | 8.07     | 19.70 | 31.56 | 86.75  |
   +---+-----+-----+------+--------+----------+-------+-------+--------+
   |50 |6.44 |15.91| 25.22| 82.90  | 6.81     | 16.17 | 25.55 | 82.74  |
   +---+-----+-----+------+--------+----------+-------+-------+--------+
   |100|6.47 |16.73| 26.43| 84.25  | 6.62     | 16.63 | 26.62 | 84.78  |
   +---+-----+-----+------+--------+----------+-------+-------+--------+

       Table 84: cubic-reno-sce Mean TCP RTT (ms); Columns: netem bi-
        directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)


   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |   |0    | 10    | 20    | 80     | 0     | 10    | 20    | 80     |
   +===+=====+=======+=======+========+=======+=======+=======+========+
   |   |cubic|       |       |        | dctcp |       |       |        |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |1  |64.14| 64.56 | 77.80 | 145.02 | 65.75 | 64.93 | 80.94 | 142.91 |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |5  |13.23| 25.90 | 38.90 | 96.18  | 13.84 | 23.58 | 33.08 | 93.08  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |10 |7.73 | 21.30 | 34.10 | 90.52  | 7.86  | 18.08 | 27.45 | 87.45  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |50 |7.93 | 18.01 | 28.17 | 86.63  | 7.02  | 16.02 | 26.69 | 85.82  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |100|7.66 | 17.36 | 27.50 | 86.24  | 6.87  | 16.47 | 26.59 | 85.79  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+

        Table 85: cubic-dctcp Mean TCP RTT (ms); Columns: netem bi-
        directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)













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Internet-Draft               sceonetwotests                    July 2019


   +---+-----+-----+-----+--------+-----------+-------+-------+--------+
   |   |0    |10   |20   | 80     | 0         | 10    | 20    | 80     |
   +===+=====+=====+=====+========+===========+=======+=======+========+
   |   |cubic|     |     |        | dctcp-sce |       |       |        |
   +---+-----+-----+-----+--------+-----------+-------+-------+--------+
   |1  |67.09|68.20|83.79| 137.00 | 66.85     | 68.78 | 84.89 | 142.55 |
   +---+-----+-----+-----+--------+-----------+-------+-------+--------+
   |5  |14.22|24.20|34.59| 90.97  | 13.60     | 24.91 | 36.51 | 96.69  |
   +---+-----+-----+-----+--------+-----------+-------+-------+--------+
   |10 |8.16 |18.76|28.16| 86.07  | 8.16      | 20.29 | 31.97 | 88.89  |
   +---+-----+-----+-----+--------+-----------+-------+-------+--------+
   |50 |6.42 |16.27|25.71| 83.55  | 6.69      | 17.27 | 26.47 | 84.08  |
   +---+-----+-----+-----+--------+-----------+-------+-------+--------+
   |100|6.54 |16.35|25.54| 83.88  | 6.79      | 16.65 | 26.21 | 84.75  |
   +---+-----+-----+-----+--------+-----------+-------+-------+--------+

      Table 86: cubic-dctcp-sce Mean TCP RTT (ms); Columns: netem bi-
        directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)


   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |   |0    | 10    | 20    | 80     | 0     | 10    | 20    | 80     |
   +===+=====+=======+=======+========+=======+=======+=======+========+
   |   |reno |       |       |        | reno  |       |       |        |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |1  |67.27| 69.27 | 83.70 | 145.08 | 67.81 | 68.53 | 84.48 | 145.65 |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |5  |14.07| 26.21 | 36.48 | 93.63  | 14.28 | 26.00 | 36.21 | 93.05  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |10 |8.21 | 19.06 | 29.68 | 86.73  | 8.20  | 18.96 | 29.25 | 86.39  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |50 |6.62 | 16.41 | 24.97 | 82.36  | 6.68  | 16.32 | 25.01 | 82.48  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |100|6.57 | 15.91 | 24.64 | 82.45  | 6.45  | 15.90 | 24.65 | 82.56  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+

         Table 87: reno-reno Mean TCP RTT (ms); Columns: netem bi-
        directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)













Heist, et al.            Expires 4 January 2020                [Page 53]


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   +---+-----+-----+------+--------+----------+-------+-------+--------+
   |   |0    |10   | 20   | 80     | 0        | 10    | 20    | 80     |
   +===+=====+=====+======+========+==========+=======+=======+========+
   |   |reno |     |      |        | reno-sce |       |       |        |
   +---+-----+-----+------+--------+----------+-------+-------+--------+
   |1  |67.65|68.24| 83.30| 139.85 | 68.25    | 70.37 | 79.56 | 142.52 |
   +---+-----+-----+------+--------+----------+-------+-------+--------+
   |5  |14.09|24.97| 35.97| 91.33  | 14.55    | 24.35 | 37.58 | 96.81  |
   +---+-----+-----+------+--------+----------+-------+-------+--------+
   |10 |8.54 |19.17| 28.84| 86.91  | 8.21     | 19.96 | 32.27 | 87.41  |
   +---+-----+-----+------+--------+----------+-------+-------+--------+
   |50 |6.44 |15.55| 24.88| 82.79  | 6.56     | 16.08 | 25.22 | 82.59  |
   +---+-----+-----+------+--------+----------+-------+-------+--------+
   |100|6.40 |16.27| 25.71| 85.25  | 6.74     | 16.42 | 25.90 | 85.13  |
   +---+-----+-----+------+--------+----------+-------+-------+--------+

       Table 88: reno-reno-sce Mean TCP RTT (ms); Columns: netem bi-
        directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)


   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |   |0    | 10    | 20    | 80     | 0     | 10    | 20    | 80     |
   +===+=====+=======+=======+========+=======+=======+=======+========+
   |   |reno |       |       |        | dctcp |       |       |        |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |1  |62.85| 65.76 | 79.20 | 146.75 | 65.00 | 66.92 | 78.64 | 140.83 |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |5  |13.65| 26.18 | 38.66 | 97.29  | 14.02 | 23.92 | 33.54 | 93.24  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |10 |8.12 | 21.46 | 32.84 | 91.43  | 7.89  | 17.89 | 27.67 | 87.40  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |50 |7.90 | 18.20 | 28.50 | 85.93  | 6.86  | 16.53 | 26.78 | 84.89  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |100|7.58 | 17.41 | 27.77 | 85.89  | 7.06  | 16.76 | 27.43 | 85.22  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+

         Table 89: reno-dctcp Mean TCP RTT (ms); Columns: netem bi-
        directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)













Heist, et al.            Expires 4 January 2020                [Page 54]


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   +---+-----+-----+-----+--------+-----------+------+-------+---------+
   |   |0    |10   |20   | 80     | 0         | 10   | 20    | 80      |
   +===+=====+=====+=====+========+===========+======+=======+=========+
   |   |reno |     |     |        | dctcp-sce |      |       |         |
   +---+-----+-----+-----+--------+-----------+------+-------+---------+
   |1  |66.94|68.38|84.13| 443.94 | 68.15     | 70.50| 80.58 | 1036.03 |
   +---+-----+-----+-----+--------+-----------+------+-------+---------+
   |5  |14.59|25.96|35.41| 91.34  | 14.17     | 25.50| 36.79 | 96.14   |
   +---+-----+-----+-----+--------+-----------+------+-------+---------+
   |10 |8.76 |19.46|28.55| 86.17  | 8.35      | 21.14| 31.51 | 88.70   |
   +---+-----+-----+-----+--------+-----------+------+-------+---------+
   |50 |6.32 |15.99|25.40| 83.48  | 6.63      | 17.15| 26.42 | 83.55   |
   +---+-----+-----+-----+--------+-----------+------+-------+---------+
   |100|6.33 |15.98|25.24| 83.42  | 6.67      | 16.22| 25.74 | 84.21   |
   +---+-----+-----+-----+--------+-----------+------+-------+---------+

       Table 90: reno-dctcp-sce Mean TCP RTT (ms); Columns: netem bi-
        directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)


   +---+----------+-----+-----+--------+----------+-----+-----+--------+
   |   | 0        |10   |20   | 80     | 0        |10   |20   | 80     |
   +===+==========+=====+=====+========+==========+=====+=====+========+
   |   | reno-sce |     |     |        | reno-sce |     |     |        |
   +---+----------+-----+-----+--------+----------+-----+-----+--------+
   |1  | 71.92    |72.60|85.12| 140.88 | 71.48    |71.82|82.18| 138.74 |
   +---+----------+-----+-----+--------+----------+-----+-----+--------+
   |5  | 14.11    |24.23|34.56| 92.98  | 14.22    |24.21|35.30| 92.20  |
   +---+----------+-----+-----+--------+----------+-----+-----+--------+
   |10 | 9.86     |19.83|29.38| 86.98  | 9.89     |19.80|29.32| 86.79  |
   +---+----------+-----+-----+--------+----------+-----+-----+--------+
   |50 | 6.63     |17.01|26.57| 82.78  | 6.69     |16.95|26.48| 82.69  |
   +---+----------+-----+-----+--------+----------+-----+-----+--------+
   |100| 6.49     |16.69|26.68| 85.00  | 6.53     |16.93|26.69| 85.15  |
   +---+----------+-----+-----+--------+----------+-----+-----+--------+

     Table 91: reno-sce-reno-sce Mean TCP RTT (ms); Columns: netem bi-
        directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)













Heist, et al.            Expires 4 January 2020                [Page 55]


Internet-Draft               sceonetwotests                    July 2019


   +---+----------+-----+-----+--------+------+-------+-------+--------+
   |   | 0        |10   |20   | 80     | 0    | 10    | 20    | 80     |
   +===+==========+=====+=====+========+======+=======+=======+========+
   |   | reno-sce |     |     |        | dctcp|       |       |        |
   +---+----------+-----+-----+--------+------+-------+-------+--------+
   |1  | 69.23    |66.60|78.75| 146.62 | 67.72| 67.64 | 79.32 | 139.43 |
   +---+----------+-----+-----+--------+------+-------+-------+--------+
   |5  | 13.35    |24.63|36.42| 98.92  | 13.90| 23.35 | 32.95 | 92.69  |
   +---+----------+-----+-----+--------+------+-------+-------+--------+
   |10 | 8.00     |19.99|30.77| 94.50  | 7.85 | 18.12 | 27.44 | 87.54  |
   +---+----------+-----+-----+--------+------+-------+-------+--------+
   |50 | 8.06     |19.71|31.42| 88.87  | 7.06 | 16.79 | 26.70 | 85.95  |
   +---+----------+-----+-----+--------+------+-------+-------+--------+
   |100| 8.34     |19.77|32.99| 91.65  | 7.55 | 16.70 | 27.21 | 87.35  |
   +---+----------+-----+-----+--------+------+-------+-------+--------+

       Table 92: reno-sce-dctcp Mean TCP RTT (ms); Columns: netem bi-
        directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)


   +---+----------+-----+-----+-------+-----------+-----+-----+--------+
   |   | 0        |10   |20   | 80    | 0         |10   |20   | 80     |
   +===+==========+=====+=====+=======+===========+=====+=====+========+
   |   | reno-sce |     |     |       | dctcp-sce |     |     |        |
   +---+----------+-----+-----+-------+-----------+-----+-----+--------+
   |1  | 71.87    |72.66|83.24| 139.33| 72.10     |73.13|86.11| 136.98 |
   +---+----------+-----+-----+-------+-----------+-----+-----+--------+
   |5  | 15.51    |24.77|34.98| 91.65 | 15.39     |23.89|34.00| 93.84  |
   +---+----------+-----+-----+-------+-----------+-----+-----+--------+
   |10 | 9.89     |19.46|28.37| 87.12 | 9.73      |19.48|30.06| 89.37  |
   +---+----------+-----+-----+-------+-----------+-----+-----+--------+
   |50 | 6.53     |16.33|25.97| 82.70 | 6.66      |17.52|27.41| 83.22  |
   +---+----------+-----+-----+-------+-----------+-----+-----+--------+
   |100| 6.81     |16.30|26.07| 83.48 | 6.96      |16.88|26.35| 84.50  |
   +---+----------+-----+-----+-------+-----------+-----+-----+--------+

       Table 93: reno-sce-dctcp-sce Mean TCP RTT (ms); Columns: netem
       bi-directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)













Heist, et al.            Expires 4 January 2020                [Page 56]


Internet-Draft               sceonetwotests                    July 2019


   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |   |0    | 10    | 20    | 80     | 0     | 10    | 20    | 80     |
   +===+=====+=======+=======+========+=======+=======+=======+========+
   |   |dctcp|       |       |        | dctcp |       |       |        |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |1  |68.18| 68.95 | 80.54 | 143.93 | 69.62 | 69.18 | 80.52 | 141.76 |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |5  |15.31| 24.50 | 34.27 | 94.45  | 15.27 | 24.16 | 33.93 | 95.11  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |10 |8.30 | 18.85 | 28.20 | 87.75  | 8.44  | 18.78 | 28.46 | 87.50  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |50 |7.47 | 16.58 | 26.42 | 85.35  | 7.49  | 16.75 | 26.67 | 85.34  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |100|7.64 | 16.55 | 26.77 | 86.26  | 7.52  | 17.00 | 26.75 | 86.42  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+

        Table 94: dctcp-dctcp Mean TCP RTT (ms); Columns: netem bi-
        directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)


   +---+-----+------+-----+--------+-----------+--------+-----+--------+
   |   |0    |10    |20   | 80     | 0         | 10     |20   | 80     |
   +===+=====+======+=====+========+===========+========+=====+========+
   |   |dctcp|      |     |        | dctcp-sce |        |     |        |
   +---+-----+------+-----+--------+-----------+--------+-----+--------+
   |1  |66.02|66.25 |78.29| 139.85 | 67.98     | 65.82  |77.89| 145.81 |
   +---+-----+------+-----+--------+-----------+--------+-----+--------+
   |5  |13.88|207.36|32.89| 92.04  | 13.55     | 380.51 |35.59| 98.73  |
   +---+-----+------+-----+--------+-----------+--------+-----+--------+
   |10 |7.81 |80.88 |27.60| 87.58  | 7.95      | 154.57 |30.74| 93.93  |
   +---+-----+------+-----+--------+-----------+--------+-----+--------+
   |50 |6.98 |16.12 |26.46| 85.87  | 8.00      | 19.22  |32.18| 88.74  |
   +---+-----+------+-----+--------+-----------+--------+-----+--------+
   |100|7.72 |16.92 |27.67| 86.88  | 8.67      | 19.60  |32.95| 91.79  |
   +---+-----+------+-----+--------+-----------+--------+-----+--------+

      Table 95: dctcp-dctcp-sce Mean TCP RTT (ms); Columns: netem bi-
        directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)













Heist, et al.            Expires 4 January 2020                [Page 57]


Internet-Draft               sceonetwotests                    July 2019


   +---+-----------+-----+-----+------+-----------+-----+-----+--------+
   |   | 0         |10   |20   |80    | 0         |10   |20   | 80     |
   +===+===========+=====+=====+======+===========+=====+=====+========+
   |   | dctcp-sce |     |     |      | dctcp-sce |     |     |        |
   +---+-----------+-----+-----+------+-----------+-----+-----+--------+
   |1  | 69.76     |71.34|84.74|139.62| 72.85     |71.92|86.45| 137.08 |
   +---+-----------+-----+-----+------+-----------+-----+-----+--------+
   |5  | 15.58     |23.92|33.94|92.72 | 15.65     |23.80|33.77| 93.02  |
   +---+-----------+-----+-----+------+-----------+-----+-----+--------+
   |10 | 9.78      |19.14|29.55|90.22 | 9.73      |19.36|29.58| 89.44  |
   +---+-----------+-----+-----+------+-----------+-----+-----+--------+
   |50 | 6.75      |15.21|24.86|82.92 | 6.80      |15.27|24.83| 83.08  |
   +---+-----------+-----+-----+------+-----------+-----+-----+--------+
   |100| 6.41      |15.71|25.16|83.67 | 6.59      |15.95|25.31| 83.71  |
   +---+-----------+-----+-----+------+-----------+-----+-----+--------+

      Table 96: dctcp-sce-dctcp-sce Mean TCP RTT (ms); Columns: netem
       bi-directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)


A.8.  Two-Flow TCP RTT (Cake "triple-isolate")

   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |   |0    | 10    | 20    | 80     | 0     | 10    | 20    | 80     |
   +===+=====+=======+=======+========+=======+=======+=======+========+
   |   |cubic|       |       |        | cubic |       |       |        |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |1  |92.48| 88.69 | 88.22 | 131.91 | 92.05 | 90.01 | 87.87 | 131.57 |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |5  |18.67| 28.80 | 36.43 | 90.88  | 18.74 | 28.85 | 36.72 | 90.74  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |10 |8.48 | 18.56 | 28.64 | 86.24  | 8.53  | 18.63 | 28.72 | 86.10  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |50 |6.51 | 15.85 | 24.13 | 82.81  | 6.60  | 15.85 | 24.00 | 82.69  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |100|6.04 | 15.21 | 23.73 | 82.62  | 5.92  | 15.29 | 23.71 | 82.59  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+

        Table 97: cubic-cubic Mean TCP RTT (ms); Columns: netem bi-
        directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)











Heist, et al.            Expires 4 January 2020                [Page 58]


Internet-Draft               sceonetwotests                    July 2019


   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |   |0    | 10    | 20    | 80     | 0     | 10    | 20    | 80     |
   +===+=====+=======+=======+========+=======+=======+=======+========+
   |   |cubic|       |       |        | reno  |       |       |        |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |1  |90.34| 89.98 | 87.87 | 133.32 | 68.49 | 66.53 | 73.84 | 138.30 |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |5  |17.62| 29.12 | 36.16 | 90.80  | 14.13 | 30.47 | 37.59 | 92.04  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |10 |8.49 | 18.41 | 28.65 | 86.04  | 8.90  | 20.00 | 30.17 | 86.63  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |50 |6.48 | 15.92 | 23.71 | 82.53  | 6.56  | 15.44 | 23.98 | 82.33  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |100|6.15 | 15.14 | 23.53 | 82.86  | 6.22  | 14.57 | 23.50 | 82.20  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+

         Table 98: cubic-reno Mean TCP RTT (ms); Columns: netem bi-
        directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)


   +---+-----+-----+------+--------+----------+-------+-------+--------+
   |   |0    |10   | 20   | 80     | 0        | 10    | 20    | 80     |
   +===+=====+=====+======+========+==========+=======+=======+========+
   |   |cubic|     |      |        | reno-sce |       |       |        |
   +---+-----+-----+------+--------+----------+-------+-------+--------+
   |1  |92.71|90.37| 87.84| 129.22 | 50.64    | 50.51 | 50.24 | 117.80 |
   +---+-----+-----+------+--------+----------+-------+-------+--------+
   |5  |16.87|24.55| 35.20| 90.00  | 9.62     | 19.86 | 30.07 | 92.04  |
   +---+-----+-----+------+--------+----------+-------+-------+--------+
   |10 |8.53 |18.97| 29.09| 86.20  | 6.59     | 16.56 | 26.35 | 85.23  |
   +---+-----+-----+------+--------+----------+-------+-------+--------+
   |50 |6.55 |15.97| 24.28| 82.65  | 4.41     | 13.89 | 23.32 | 82.85  |
   +---+-----+-----+------+--------+----------+-------+-------+--------+
   |100|6.03 |15.27| 23.98| 82.61  | 3.93     | 13.85 | 23.58 | 82.96  |
   +---+-----+-----+------+--------+----------+-------+-------+--------+

       Table 99: cubic-reno-sce Mean TCP RTT (ms); Columns: netem bi-
        directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)













Heist, et al.            Expires 4 January 2020                [Page 59]


Internet-Draft               sceonetwotests                    July 2019


   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |   |0    | 10    | 20    | 80     | 0     | 10    | 20    | 80     |
   +===+=====+=======+=======+========+=======+=======+=======+========+
   |   |cubic|       |       |        | dctcp |       |       |        |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |1  |92.60| 89.79 | 87.75 | 135.20 | 97.84 | 96.66 | 96.75 | 149.61 |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |5  |14.45| 28.19 | 37.86 | 91.20  | 19.07 | 25.58 | 35.17 | 94.03  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |10 |8.63 | 18.12 | 28.34 | 86.15  | 8.16  | 17.58 | 27.57 | 87.68  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |50 |6.57 | 15.82 | 24.40 | 82.81  | 6.80  | 16.42 | 25.94 | 84.05  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |100|6.24 | 15.32 | 23.81 | 82.84  | 6.52  | 16.12 | 25.83 | 82.92  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+

        Table 100: cubic-dctcp Mean TCP RTT (ms); Columns: netem bi-
        directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)


   +---+-----+-----+-----+--------+-----------+-------+-------+--------+
   |   |0    |10   |20   | 80     | 0         | 10    | 20    | 80     |
   +===+=====+=====+=====+========+===========+=======+=======+========+
   |   |cubic|     |     |        | dctcp-sce |       |       |        |
   +---+-----+-----+-----+--------+-----------+-------+-------+--------+
   |1  |92.73|87.54|87.60| 126.28 | 50.28     | 49.77 | 49.69 | 115.82 |
   +---+-----+-----+-----+--------+-----------+-------+-------+--------+
   |5  |14.77|24.31|34.63| 89.26  | 9.54      | 20.04 | 29.91 | 93.48  |
   +---+-----+-----+-----+--------+-----------+-------+-------+--------+
   |10 |8.46 |18.88|28.82| 85.49  | 6.87      | 16.46 | 26.73 | 88.22  |
   +---+-----+-----+-----+--------+-----------+-------+-------+--------+
   |50 |6.61 |17.05|24.37| 82.43  | 4.19      | 13.11 | 22.72 | 82.28  |
   +---+-----+-----+-----+--------+-----------+-------+-------+--------+
   |100|6.41 |15.44|23.87| 82.35  | 3.66      | 12.84 | 22.70 | 82.27  |
   +---+-----+-----+-----+--------+-----------+-------+-------+--------+

      Table 101: cubic-dctcp-sce Mean TCP RTT (ms); Columns: netem bi-
        directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)













Heist, et al.            Expires 4 January 2020                [Page 60]


Internet-Draft               sceonetwotests                    July 2019


   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |   |0    | 10    | 20    | 80     | 0     | 10    | 20    | 80     |
   +===+=====+=======+=======+========+=======+=======+=======+========+
   |   |reno |       |       |        | reno  |       |       |        |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |1  |68.39| 66.58 | 73.72 | 142.08 | 68.61 | 66.66 | 73.74 | 142.94 |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |5  |15.73| 25.66 | 38.41 | 92.20  | 14.62 | 25.71 | 37.82 | 92.07  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |10 |8.48 | 20.48 | 29.68 | 86.62  | 8.86  | 20.37 | 29.82 | 86.93  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |50 |6.58 | 15.60 | 23.71 | 82.41  | 6.54  | 15.64 | 23.77 | 82.36  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |100|6.32 | 14.10 | 23.44 | 82.17  | 6.36  | 14.13 | 23.13 | 81.99  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+

         Table 102: reno-reno Mean TCP RTT (ms); Columns: netem bi-
        directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)


   +---+-----+-----+------+--------+----------+-------+-------+--------+
   |   |0    |10   | 20   | 80     | 0        | 10    | 20    | 80     |
   +===+=====+=====+======+========+==========+=======+=======+========+
   |   |reno |     |      |        | reno-sce |       |       |        |
   +---+-----+-----+------+--------+----------+-------+-------+--------+
   |1  |68.77|66.59| 73.78| 137.04 | 50.65    | 50.32 | 50.23 | 116.09 |
   +---+-----+-----+------+--------+----------+-------+-------+--------+
   |5  |16.12|24.59| 37.04| 90.48  | 9.41     | 19.69 | 30.14 | 91.04  |
   +---+-----+-----+------+--------+----------+-------+-------+--------+
   |10 |8.46 |19.67| 31.33| 86.72  | 6.76     | 16.53 | 26.33 | 85.41  |
   +---+-----+-----+------+--------+----------+-------+-------+--------+
   |50 |6.59 |15.65| 23.98| 82.46  | 4.43     | 13.54 | 23.21 | 82.73  |
   +---+-----+-----+------+--------+----------+-------+-------+--------+
   |100|6.35 |14.57| 23.37| 82.16  | 4.11     | 13.62 | 23.45 | 82.85  |
   +---+-----+-----+------+--------+----------+-------+-------+--------+

       Table 103: reno-reno-sce Mean TCP RTT (ms); Columns: netem bi-
        directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)













Heist, et al.            Expires 4 January 2020                [Page 61]


Internet-Draft               sceonetwotests                    July 2019


   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |   |0    | 10    | 20    | 80     | 0     | 10    | 20    | 80     |
   +===+=====+=======+=======+========+=======+=======+=======+========+
   |   |reno |       |       |        | dctcp |       |       |        |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |1  |68.04| 66.19 | 73.70 | 140.21 | 96.81 | 96.80 | 96.58 | 143.33 |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |5  |16.18| 26.99 | 38.88 | 92.89  | 18.99 | 24.82 | 35.27 | 93.97  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |10 |8.59 | 19.99 | 30.15 | 86.79  | 8.27  | 17.92 | 27.99 | 88.08  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |50 |6.38 | 15.57 | 23.94 | 82.44  | 6.78  | 16.46 | 25.77 | 83.82  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |100|6.24 | 14.72 | 23.45 | 82.17  | 6.30  | 16.11 | 24.98 | 82.96  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+

        Table 104: reno-dctcp Mean TCP RTT (ms); Columns: netem bi-
        directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)


   +---+-----+-----+-----+--------+-----------+-------+-------+--------+
   |   |0    |10   |20   | 80     | 0         | 10    | 20    | 80     |
   +===+=====+=====+=====+========+===========+=======+=======+========+
   |   |reno |     |     |        | dctcp-sce |       |       |        |
   +---+-----+-----+-----+--------+-----------+-------+-------+--------+
   |1  |69.06|67.33|65.57| 133.89 | 50.17     | 49.67 | 49.59 | 115.33 |
   +---+-----+-----+-----+--------+-----------+-------+-------+--------+
   |5  |16.04|24.23|36.62| 89.94  | 9.57      | 19.90 | 30.12 | 93.42  |
   +---+-----+-----+-----+--------+-----------+-------+-------+--------+
   |10 |8.51 |19.93|29.67| 85.60  | 6.65      | 16.53 | 26.99 | 87.11  |
   +---+-----+-----+-----+--------+-----------+-------+-------+--------+
   |50 |6.47 |16.89|24.02| 82.35  | 4.19      | 13.04 | 22.72 | 82.35  |
   +---+-----+-----+-----+--------+-----------+-------+-------+--------+
   |100|6.35 |14.57|23.39| 81.90  | 3.74      | 12.59 | 22.53 | 82.02  |
   +---+-----+-----+-----+--------+-----------+-------+-------+--------+

      Table 105: reno-dctcp-sce Mean TCP RTT (ms); Columns: netem bi-
        directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)













Heist, et al.            Expires 4 January 2020                [Page 62]


Internet-Draft               sceonetwotests                    July 2019


   +---+----------+-----+-----+--------+----------+-----+-----+--------+
   |   | 0        |10   |20   | 80     | 0        |10   |20   | 80     |
   +===+==========+=====+=====+========+==========+=====+=====+========+
   |   | reno-sce |     |     |        | reno-sce |     |     |        |
   +---+----------+-----+-----+--------+----------+-----+-----+--------+
   |1  | 50.10    |50.27|50.22| 117.12 | 50.62    |50.44|50.23| 116.67 |
   +---+----------+-----+-----+--------+----------+-----+-----+--------+
   |5  | 9.54     |19.29|29.77| 88.86  | 9.63     |19.25|29.76| 89.43  |
   +---+----------+-----+-----+--------+----------+-----+-----+--------+
   |10 | 6.89     |16.55|26.16| 85.44  | 6.62     |16.47|26.14| 85.52  |
   +---+----------+-----+-----+--------+----------+-----+-----+--------+
   |50 | 4.50     |13.31|22.99| 82.65  | 4.47     |13.28|22.93| 82.60  |
   +---+----------+-----+-----+--------+----------+-----+-----+--------+
   |100| 4.25     |13.89|23.70| 83.01  | 4.14     |13.74|23.59| 82.88  |
   +---+----------+-----+-----+--------+----------+-----+-----+--------+

       Table 106: reno-sce-reno-sce Mean TCP RTT (ms); Columns: netem
       bi-directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)


   +---+----------+-----+-----+--------+------+-------+-------+--------+
   |   | 0        |10   |20   | 80     | 0    | 10    | 20    | 80     |
   +===+==========+=====+=====+========+======+=======+=======+========+
   |   | reno-sce |     |     |        | dctcp|       |       |        |
   +---+----------+-----+-----+--------+------+-------+-------+--------+
   |1  | 49.93    |50.27|50.22| 119.15 | 97.30| 97.00 | 96.39 | 135.73 |
   +---+----------+-----+-----+--------+------+-------+-------+--------+
   |5  | 9.45     |19.45|30.20| 92.32  | 19.13| 23.40 | 33.39 | 91.37  |
   +---+----------+-----+-----+--------+------+-------+-------+--------+
   |10 | 6.71     |16.62|26.26| 85.57  | 8.16 | 18.21 | 28.41 | 87.40  |
   +---+----------+-----+-----+--------+------+-------+-------+--------+
   |50 | 4.42     |13.69|23.24| 82.83  | 6.75 | 16.30 | 26.05 | 84.00  |
   +---+----------+-----+-----+--------+------+-------+-------+--------+
   |100| 4.07     |13.79|23.61| 82.79  | 6.36 | 16.43 | 26.21 | 83.42  |
   +---+----------+-----+-----+--------+------+-------+-------+--------+

      Table 107: reno-sce-dctcp Mean TCP RTT (ms); Columns: netem bi-
        directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)













Heist, et al.            Expires 4 January 2020                [Page 63]


Internet-Draft               sceonetwotests                    July 2019


   +---+----------+-----+-----+-------+-----------+-----+-----+--------+
   |   | 0        |10   |20   | 80    | 0         |10   |20   | 80     |
   +===+==========+=====+=====+=======+===========+=====+=====+========+
   |   | reno-sce |     |     |       | dctcp-sce |     |     |        |
   +---+----------+-----+-----+-------+-----------+-----+-----+--------+
   |1  | 50.11    |50.26|50.22| 115.48| 50.26     |49.68|49.61| 114.34 |
   +---+----------+-----+-----+-------+-----------+-----+-----+--------+
   |5  | 9.52     |19.16|29.74| 88.60 | 9.61      |19.32|29.60| 91.03  |
   +---+----------+-----+-----+-------+-----------+-----+-----+--------+
   |10 | 6.49     |16.48|25.83| 84.54 | 6.77      |16.38|26.33| 87.03  |
   +---+----------+-----+-----+-------+-----------+-----+-----+--------+
   |50 | 4.41     |13.17|22.98| 82.60 | 4.12      |13.08|22.99| 82.38  |
   +---+----------+-----+-----+-------+-----------+-----+-----+--------+
   |100| 4.16     |13.48|23.17| 82.59 | 3.78      |12.83|22.57| 82.04  |
   +---+----------+-----+-----+-------+-----------+-----+-----+--------+

      Table 108: reno-sce-dctcp-sce Mean TCP RTT (ms); Columns: netem
       bi-directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)


   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |   |0    | 10    | 20    | 80     | 0     | 10    | 20    | 80     |
   +===+=====+=======+=======+========+=======+=======+=======+========+
   |   |dctcp|       |       |        | dctcp |       |       |        |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |1  |97.66| 96.66 | 96.60 | 151.58 | 97.03 | 96.71 | 96.65 | 150.04 |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |5  |18.76| 25.73 | 35.30 | 93.14  | 19.22 | 25.75 | 35.17 | 93.24  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |10 |8.15 | 18.04 | 27.99 | 87.51  | 8.36  | 17.57 | 27.57 | 87.54  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |50 |6.62 | 16.44 | 25.70 | 83.54  | 6.56  | 16.35 | 25.91 | 84.12  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+
   |100|6.46 | 16.25 | 26.01 | 82.89  | 6.56  | 16.07 | 25.86 | 82.93  |
   +---+-----+-------+-------+--------+-------+-------+-------+--------+

        Table 109: dctcp-dctcp Mean TCP RTT (ms); Columns: netem bi-
        directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)













Heist, et al.            Expires 4 January 2020                [Page 64]


Internet-Draft               sceonetwotests                    July 2019


   +---+-----+-----+-----+--------+-----------+-------+-------+--------+
   |   |0    |10   |20   | 80     | 0         | 10    | 20    | 80     |
   +===+=====+=====+=====+========+===========+=======+=======+========+
   |   |dctcp|     |     |        | dctcp-sce |       |       |        |
   +---+-----+-----+-----+--------+-----------+-------+-------+--------+
   |1  |97.80|96.84|96.75| 137.02 | 50.27     | 49.76 | 49.67 | 114.01 |
   +---+-----+-----+-----+--------+-----------+-------+-------+--------+
   |5  |18.89|23.68|33.54| 91.13  | 9.53      | 19.80 | 29.74 | 93.86  |
   +---+-----+-----+-----+--------+-----------+-------+-------+--------+
   |10 |8.09 |17.86|28.37| 85.94  | 6.63      | 16.42 | 26.54 | 87.48  |
   +---+-----+-----+-----+--------+-----------+-------+-------+--------+
   |50 |6.74 |16.51|25.50| 83.04  | 4.06      | 13.08 | 22.68 | 82.42  |
   +---+-----+-----+-----+--------+-----------+-------+-------+--------+
   |100|6.44 |16.27|26.02| 83.05  | 3.74      | 12.88 | 22.68 | 82.08  |
   +---+-----+-----+-----+--------+-----------+-------+-------+--------+

      Table 110: dctcp-dctcp-sce Mean TCP RTT (ms); Columns: netem bi-
        directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)


   +---+-----------+-----+-----+------+-----------+-----+-----+--------+
   |   | 0         |10   |20   |80    | 0         |10   |20   | 80     |
   +===+===========+=====+=====+======+===========+=====+=====+========+
   |   | dctcp-sce |     |     |      | dctcp-sce |     |     |        |
   +---+-----------+-----+-----+------+-----------+-----+-----+--------+
   |1  | 50.89     |49.74|49.64|116.00| 50.28     |49.72|49.68| 113.76 |
   +---+-----------+-----+-----+------+-----------+-----+-----+--------+
   |5  | 9.44      |19.41|30.11|90.46 | 9.53      |19.19|29.78| 91.12  |
   +---+-----------+-----+-----+------+-----------+-----+-----+--------+
   |10 | 6.66      |16.46|26.39|86.01 | 6.77      |16.44|26.44| 86.28  |
   +---+-----------+-----+-----+------+-----------+-----+-----+--------+
   |50 | 4.14      |12.85|22.68|82.30 | 4.19      |13.06|22.55| 82.25  |
   +---+-----------+-----+-----+------+-----------+-----+-----+--------+
   |100| 3.78      |12.57|22.34|81.86 | 3.80      |12.56|22.26| 81.96  |
   +---+-----------+-----+-----+------+-----------+-----+-----+--------+

      Table 111: dctcp-sce-dctcp-sce Mean TCP RTT (ms); Columns: netem
       bi-directional Delay (ms); Rows: Cake-limited Bandwidth (Mbit)


Authors' Addresses

   Peter G. Heist
   Redacted
   463 11 Liberec 30
   Czech Republic

   Email: pete@heistp.net



Heist, et al.            Expires 4 January 2020                [Page 65]


Internet-Draft               sceonetwotests                    July 2019


   Rodney W. Grimes
   Redacted
   Portland, OR 97217
   United States

   Email: rgrimes@freebsd.org


   Jonathan Morton
   Kokkonranta 21
   FI-31520 Pitkajarvi
   Finland

   Phone: +358 44 927 2377
   Email: chromatix99@gmail.com




































Heist, et al.            Expires 4 January 2020                [Page 66]


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