[Docs] [txt|pdf] [Tracker] [Email] [Diff1] [Diff2] [Nits] [IPR]

Versions: 00 01 02 03 04 05

IPPM                                                        T. Zhou, Ed.
Internet-Draft                                               G. Fioccola
Intended status: Standards Track                                  Huawei
Expires: January 13, 2021                                         S. Lee
                                                                   LG U+
                                                             M. Cociglio
                                                          Telecom Italia
                                                                   W. Li
                                                                  Huawei
                                                           July 12, 2020


                   Enhanced Alternate Marking Method
             draft-zhou-ippm-enhanced-alternate-marking-05

Abstract

   This document extends the IPv6 alternate marking option to provide
   the enhanced capabilities.

Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in RFC 2119 [RFC2119].

Status of This Memo

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

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at https://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on January 13, 2021.

Copyright Notice

   Copyright (c) 2020 IETF Trust and the persons identified as the
   document authors.  All rights reserved.




Zhou, Ed., et al.       Expires January 13, 2021                [Page 1]


Internet-Draft         enhanced-alternate-marking              July 2020


   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 and restrictions with respect
   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Data Fields Format  . . . . . . . . . . . . . . . . . . . . .   2
   3.  Enhanced Alternate Marking capabilities . . . . . . . . . . .   3
   4.  Security Considerations . . . . . . . . . . . . . . . . . . .   4
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   4
   6.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   4
     6.1.  Normative References  . . . . . . . . . . . . . . . . . .   4
     6.2.  Informative References  . . . . . . . . . . . . . . . . .   4
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   4

1.  Introduction

   The Alternate Marking [RFC8321] and Multipoint Alternate Marking
   [I-D.ietf-ippm-multipoint-alt-mark] define the Alternate Marking
   technique that is an hybrid performance measurement method, per
   [RFC7799] classification of measurement methods.  This method is
   based on marking consecutive batches of packets and it can be used to
   measure packet loss, latency, and jitter on live traffic.

   AltMark Option [I-D.ietf-6man-ipv6-alt-mark] applies the Alternate
   Marking Method for IPv6 protocol, and defines Extension Header Option
   to encode Alternate Marking Method for both Hop-by-Hop Options Header
   and Destination Options Header.

   While the AltMark Option implement the basic alternate marking
   method, this document defines the extended data fields for the
   AltMark Option and provides the enhanced capabilities.

   It is worth mentioning that the enhanced capabilities are intended
   for further use and are optional.

2.  Data Fields Format

   The following figure shows the data fields format for enhanced
   alternate marking.  This data is expected to be encapsulated to
   specific transports.



Zhou, Ed., et al.       Expires January 13, 2021                [Page 2]


Internet-Draft         enhanced-alternate-marking              July 2020


    0                   1                   2                   3
    0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
   +---------------------------------------+-+-+-+-----------------+
   |           FlowMonID                   |L|D|R|R|  NextHeader   |
   +---------------------------------------+-+-+-+-----------------+
   |           FlowMonID Ext               |R|R|F|R| Len   |   R   |
   +---------------------------------------+-+-+-+-----------------+
   |           MetaInfo            |           R                   |
   +---------------------------------------------------------------+


   where:

   o  FlowMonID - Flow Monitoring Identification is the same as defined
      in AltMark Option [I-D.ietf-6man-ipv6-alt-mark].

   o  L and D - Loss Flag and Delay Flag are the same as defined in
      AltMark Option [I-D.ietf-6man-ipv6-alt-mark].

   o  NextHeader - Identify whether to carry the extended data fields.

   o  FlowMonID Ext - 20 bits unsigned integer.  This used to extend the
      FlowMonID to reduce the conflict when random allocation is applied

   o  R - Reserved for further use.  This bit MUST be set to zero.

   o  F - Flow direction identification.  F = 1, indicate the flow
      direction is forward.

   o  Len - Length.  It indicates the length of extension headers.

   o  MetaInfo - A 16 bits Bitmap to indicate more meta data attached
      for the enhanced function.

3.  Enhanced Alternate Marking capabilities

   The extended data fields presented in the previous section can be
   used for several uses.  Some possible applications can be:

   1.  shortest marking periods of single marking method for thicker
       packet loss measurements.

   2.  more dense delay measurements than double marking method (down to
       each packet).

   3.  increase the entropy of flow monitoring identifier by extending
       the size of FlowMonID.




Zhou, Ed., et al.       Expires January 13, 2021                [Page 3]


Internet-Draft         enhanced-alternate-marking              July 2020


   4.  and so on.

4.  Security Considerations

   TBD

5.  IANA Considerations

   This document has no request to IANA.

6.  References

6.1.  Normative References

   [I-D.ietf-ippm-multipoint-alt-mark]
              Fioccola, G., Cociglio, M., Sapio, A., and R. Sisto,
              "Multipoint Alternate Marking method for passive and
              hybrid performance monitoring", draft-ietf-ippm-
              multipoint-alt-mark-09 (work in progress), March 2020.

   [RFC2119]  Bradner, S., "Key words for use in RFCs to Indicate
              Requirement Levels", BCP 14, RFC 2119,
              DOI 10.17487/RFC2119, March 1997,
              <https://www.rfc-editor.org/info/rfc2119>.

   [RFC7799]  Morton, A., "Active and Passive Metrics and Methods (with
              Hybrid Types In-Between)", RFC 7799, DOI 10.17487/RFC7799,
              May 2016, <https://www.rfc-editor.org/info/rfc7799>.

   [RFC8321]  Fioccola, G., Ed., Capello, A., Cociglio, M., Castaldelli,
              L., Chen, M., Zheng, L., Mirsky, G., and T. Mizrahi,
              "Alternate-Marking Method for Passive and Hybrid
              Performance Monitoring", RFC 8321, DOI 10.17487/RFC8321,
              January 2018, <https://www.rfc-editor.org/info/rfc8321>.

6.2.  Informative References

   [I-D.ietf-6man-ipv6-alt-mark]
              Fioccola, G., Zhou, T., Cociglio, M., Qin, F., and R.
              Pang, "IPv6 Application of the Alternate Marking Method",
              draft-ietf-6man-ipv6-alt-mark-01 (work in progress), June
              2020.

Authors' Addresses







Zhou, Ed., et al.       Expires January 13, 2021                [Page 4]


Internet-Draft         enhanced-alternate-marking              July 2020


   Tianran Zhou
   Huawei
   156 Beiqing Rd.
   Beijing  100095
   China

   Email: zhoutianran@huawei.com


   Giuseppe Fioccola
   Huawei
   Riesstrasse, 25
   Munich  80992
   Germany

   Email: giuseppe.fioccola@huawei.com


   Shinyoung Lee
   LG U+
   71, Magokjungang 8-ro, Gangseo-gu
   Seoul
   Republic of Korea

   Email: leesy@lguplus.co.kr


   Mauro Cociglio
   Telecom Italia
   Via Reiss Romoli, 274
   Torino  10148
   Italy

   Email: mauro.cociglio@telecomitalia.it


   Weidong Li
   Huawei
   156 Beiqing Rd.
   Beijing  100095
   China

   Email: poly.li@huawei.com








Zhou, Ed., et al.       Expires January 13, 2021                [Page 5]

Html markup produced by rfcmarkup 1.129d, available from https://tools.ietf.org/tools/rfcmarkup/