draft-ietf-roll-applicability-template-02.txt   draft-ietf-roll-applicability-template-03.txt 
Network Working Group M. Richardson Network Working Group M. Richardson
Internet-Draft SSW Internet-Draft SSW
Intended status: Informational September 16, 2013 Intended status: Informational September 17, 2013
Expires: March 20, 2014 Expires: March 21, 2014
ROLL Applicability Statement Template ROLL Applicability Statement Template
draft-ietf-roll-applicability-template-02 draft-ietf-roll-applicability-template-03
Abstract Abstract
This document is a template applicability statement for the Routing This document is a template applicability statement for the Routing
over Low-power and Lossy Networks (ROLL) WG. This document is not over Low-power and Lossy Networks (ROLL) WG. This document is not
for publication, but rather is to be used as a template. for publication, but rather is to be used as a template.
Status of this Memo Status of This Memo
This Internet-Draft is submitted in full conformance with the This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79. provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute Task Force (IETF). Note that other groups may also distribute
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time. It is inappropriate to use Internet-Drafts as reference time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress." material or to cite them other than as "work in progress."
This Internet-Draft will expire on March 20, 2014. This Internet-Draft will expire on March 21, 2014.
Copyright Notice Copyright Notice
Copyright (c) 2013 IETF Trust and the persons identified as the Copyright (c) 2013 IETF Trust and the persons identified as the
document authors. All rights reserved. document authors. All rights reserved.
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described in the Simplified BSD License. described in the Simplified BSD License.
Table of Contents Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 4 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1. Requirements Language . . . . . . . . . . . . . . . . . . 4 1.1. Requirements Language . . . . . . . . . . . . . . . . . . 3
1.2. Terminology . . . . . . . . . . . . . . . . . . . . . . . 4 1.2. Terminology . . . . . . . . . . . . . . . . . . . . . . . 3
1.3. Required Reading . . . . . . . . . . . . . . . . . . . . . 4 1.3. Required Reading . . . . . . . . . . . . . . . . . . . . 3
1.4. Out of scope requirements . . . . . . . . . . . . . . . . 4 1.4. Out of scope requirements . . . . . . . . . . . . . . . . 3
2. Deployment Scenario . . . . . . . . . . . . . . . . . . . . . 5 2. Deployment Scenario . . . . . . . . . . . . . . . . . . . . . 3
2.1. Network Topologies . . . . . . . . . . . . . . . . . . . . 5 2.1. Network Topologies . . . . . . . . . . . . . . . . . . . 4
2.2. Traffic Characteristics . . . . . . . . . . . . . . . . . 5 2.2. Traffic Characteristics . . . . . . . . . . . . . . . . . 4
2.2.1. General . . . . . . . . . . . . . . . . . . . . . . . 5 2.2.1. General . . . . . . . . . . . . . . . . . . . . . . . 4
2.2.2. Source-sink (SS) communication paradigm . . . . . . . 5 2.2.2. Source-sink (SS) communication paradigm . . . . . . . 4
2.2.3. Publish-subscribe (PS, or pub/sub) communication 2.2.3. Publish-subscribe (PS, or pub/sub) communication
paradigm . . . . . . . . . . . . . . . . . . . . . . . 5 paradigm . . . . . . . . . . . . . . . . . . . . . . 4
2.2.4. Peer-to-peer (P2P) communication paradigm . . . . . . 5 2.2.4. Peer-to-peer (P2P) communication paradigm . . . . . . 4
2.2.5. Peer-to-multipeer (P2MP) communication paradigm . . . 5 2.2.5. Peer-to-multipeer (P2MP) communication paradigm . . . 4
2.2.6. Additional considerations: Duocast and N-cast . . . . 5 2.2.6. Additional considerations: Duocast and N-cast . . . . 4
2.2.7. RPL applicability per communication paradigm . . . . . 5 2.2.7. RPL applicability per communication paradigm . . . . 4
2.3. Layer-2 applicability. . . . . . . . . . . . . . . . . . . 5 2.3. Layer-2 applicability. . . . . . . . . . . . . . . . . . 4
3. Using RPL to Meet Functional Requirements . . . . . . . . . . 6 3. Using RPL to Meet Functional Requirements . . . . . . . . . . 4
4. RPL Profile . . . . . . . . . . . . . . . . . . . . . . . . . 7 4. RPL Profile . . . . . . . . . . . . . . . . . . . . . . . . . 4
4.1. RPL Features . . . . . . . . . . . . . . . . . . . . . . . 7 4.1. RPL Features . . . . . . . . . . . . . . . . . . . . . . 5
4.1.1. RPL Instances . . . . . . . . . . . . . . . . . . . . 7 4.1.1. RPL Instances . . . . . . . . . . . . . . . . . . . . 5
4.1.2. Storing vs. Non-Storing Mode . . . . . . . . . . . . . 7 4.1.2. Storing vs. Non-Storing Mode . . . . . . . . . . . . 5
4.1.3. DAO Policy . . . . . . . . . . . . . . . . . . . . . . 7 4.1.3. DAO Policy . . . . . . . . . . . . . . . . . . . . . 5
4.1.4. Path Metrics . . . . . . . . . . . . . . . . . . . . . 7 4.1.4. Path Metrics . . . . . . . . . . . . . . . . . . . . 5
4.1.5. Objective Function . . . . . . . . . . . . . . . . . . 7 4.1.5. Objective Function . . . . . . . . . . . . . . . . . 5
4.1.6. DODAG Repair . . . . . . . . . . . . . . . . . . . . . 7 4.1.6. DODAG Repair . . . . . . . . . . . . . . . . . . . . 5
4.1.7. Multicast . . . . . . . . . . . . . . . . . . . . . . 7 4.1.7. Multicast . . . . . . . . . . . . . . . . . . . . . . 5
4.1.8. Security . . . . . . . . . . . . . . . . . . . . . . . 7 4.1.8. Security . . . . . . . . . . . . . . . . . . . . . . 5
4.1.9. P2P communications . . . . . . . . . . . . . . . . . . 7 4.1.9. P2P communications . . . . . . . . . . . . . . . . . 5
4.1.10. IPv6 address configuration . . . . . . . . . . . . . . 7 4.1.10. IPv6 address configuration . . . . . . . . . . . . . 5
4.2. Layer-2 features . . . . . . . . . . . . . . . . . . . . . 7 4.2. Layer-2 features . . . . . . . . . . . . . . . . . . . . 5
4.2.1. Specifics about layer-2 . . . . . . . . . . . . . . . 7 4.2.1. Specifics about layer-2 . . . . . . . . . . . . . . . 5
4.2.2. Services provided at layer-2 . . . . . . . . . . . . . 7 4.2.2. Services provided at layer-2 . . . . . . . . . . . . 5
4.2.3. 6LowPAN options assumed. . . . . . . . . . . . . . . . 7 4.2.3. 6LowPAN options assumed. . . . . . . . . . . . . . . 5
4.2.4. MLE and other things . . . . . . . . . . . . . . . . . 7 4.2.4. MLE and other things . . . . . . . . . . . . . . . . 5
4.3. Recommended Configuration Defaults and Ranges . . . . . . 7 4.3. Recommended Configuration Defaults and Ranges . . . . . . 5
4.3.1. Trickle Parameters . . . . . . . . . . . . . . . . . . 7 4.3.1. Trickle Parameters . . . . . . . . . . . . . . . . . 5
4.3.2. Other Parameters . . . . . . . . . . . . . . . . . . . 7 4.3.2. Other Parameters . . . . . . . . . . . . . . . . . . 6
5. MPL Profile . . . . . . . . . . . . . . . . . . . . . . . . . 8 5. MPL Profile . . . . . . . . . . . . . . . . . . . . . . . . . 6
5.1. Recommended Configuration Defaults and Ranges . . . . . . 8 5.1. Recommended Configuration Defaults and Ranges . . . . . . 7
5.1.1. Trickle Parameters . . . . . . . . . . . . . . . . . . 8 5.1.1. Trickle Parameters . . . . . . . . . . . . . . . . . 7
5.1.2. Other Parameters . . . . . . . . . . . . . . . . . . . 8 5.1.2. Other Parameters . . . . . . . . . . . . . . . . . . 7
6. Manageability Considerations . . . . . . . . . . . . . . . . . 9 6. Manageability Considerations . . . . . . . . . . . . . . . . 7
7. Security Considerations . . . . . . . . . . . . . . . . . . . 10 7. Security Considerations . . . . . . . . . . . . . . . . . . . 7
7.1. Security Considerations during initial deployment . . . . 10 7.1. Security Considerations during initial deployment . . . . 7
7.2. Security Considerations during incremental deployment . . 10 7.2. Security Considerations during incremental deployment . . 7
7.3. Security Considerations for P2P uses . . . . . . . . . . . 10 7.3. Security Considerations for P2P uses . . . . . . . . . . 7
8. Other Related Protocols . . . . . . . . . . . . . . . . . . . 11 8. Other Related Protocols . . . . . . . . . . . . . . . . . . . 7
9. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 12 9. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 7
10. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 13 10. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 7
11. References . . . . . . . . . . . . . . . . . . . . . . . . . . 14 11. References . . . . . . . . . . . . . . . . . . . . . . . . . 8
11.1. Normative References . . . . . . . . . . . . . . . . . . . 14 11.1. Normative References . . . . . . . . . . . . . . . . . . 8
11.2. Informative References . . . . . . . . . . . . . . . . . . 14 11.2. Informative References . . . . . . . . . . . . . . . . . 8
Author's Address . . . . . . . . . . . . . . . . . . . . . . . . . 15 Author's Address . . . . . . . . . . . . . . . . . . . . . . . . 8
1. Introduction 1. Introduction
This document describes a series of questions which should be This document describes a series of questions which should be
answered. This document is intended to remain as a Internet Draft. answered. This document is intended to remain as a Internet Draft.
The idea is that current and future Applicability statements will use The idea is that current and future Applicability statements will use
the table of contents provided. The goal is that all applicability the table of contents provided. The goal is that all applicability
statements will have to cover the listed items as a minimum. statements will have to cover the listed items as a minimum.
skipping to change at page 4, line 27 skipping to change at page 3, line 35
1.2. Terminology 1.2. Terminology
A reference to draft-ietf-roll-terminology is appropriate. A A reference to draft-ietf-roll-terminology is appropriate. A
reference to layer-2 specific terminology and/or inclusion of any reference to layer-2 specific terminology and/or inclusion of any
terms that are normatively referenced is appropriate here. terms that are normatively referenced is appropriate here.
1.3. Required Reading 1.3. Required Reading
References/Overview of requirements documents, both IETF and industry References/Overview of requirements documents, both IETF and industry
group. (two pages maximum. This text should be (very) technical, group. (two pages maximum. This text should be (very) technical,
should be aimed at IETF *participants*, not industry group should be aimed at IETF *participants*, not industry group
participants, and should explain this industries' specific issues) participants, and should explain this industries' specific issues)
1.4. Out of scope requirements 1.4. Out of scope requirements
This should list other documents (if any) which deal with situations This should list other documents (if any) which deal with situations
where things are not in scope for this document. where things are not in scope for this document.
(For instance, the AMI document tries to cover both line-powered (For instance, the AMI document tries to cover both line-powered
urban metering networks, and energy-constrained metering networks, urban metering networks, and energy-constrained metering networks,
skipping to change at page 7, line 49 skipping to change at page 6, line 4
4.2.2. Services provided at layer-2 4.2.2. Services provided at layer-2
4.2.3. 6LowPAN options assumed. 4.2.3. 6LowPAN options assumed.
4.2.4. MLE and other things 4.2.4. MLE and other things
4.3. Recommended Configuration Defaults and Ranges 4.3. Recommended Configuration Defaults and Ranges
4.3.1. Trickle Parameters 4.3.1. Trickle Parameters
4.3.2. Other Parameters 4.3.2. Other Parameters
5. MPL Profile 5. MPL Profile
This section should list the various features of MPL. This section should list the various features of MPL. In considering
the parameters, a number of questions come up:
1) What are the maximum and minimum 1-hop MPL router neighbours of
all the MPL routers?
2) what is the arrival rate of new packets that need repetition in
a MPL router
3) Is there a deadline associated with the packets
4) What is the shortest number of hops of the longest path between
sources and destinations
5) What are the values of the MAC: back-off values, retries,
buffer size.
6) What is the background load of other non MPL applications.
7) arrival probability of 1-hop packets
As the corresponding design space is incredibly large, probably only
a limited subset of the design space is viable.
Here is an example scenario:
o 5 neighbours
o once every 100 ms (rate at sources is once every 300-500 ms)
o yes, 200 ms
o 5 hops, with mostly 1 hop
o no buffer, retry 1, back-off 2
o absent
o 100-80%
leading to k=3-5, Imin =30-70 ms, repeat = 2, Imax n/a.
It is crital operational boundary conditions together with
appropriate MPL parameter values are published in this applicability
statements. All applicability statements together may give a good
hint which MPL parameters and boundary conditions to choose.
5.1. Recommended Configuration Defaults and Ranges 5.1. Recommended Configuration Defaults and Ranges
5.1.1. Trickle Parameters 5.1.1. Trickle Parameters
5.1.1.1. Imin 5.1.1.1. Imin
5.1.1.2. Imax 5.1.1.2. Imax
5.1.2. Other Parameters 5.1.2. Other Parameters
skipping to change at page 12, line 4 skipping to change at page 7, line 43
(This section explains how that replaces a failed node takes on the (This section explains how that replaces a failed node takes on the
dead nodes' identity, or not. How are nodes retired. How are nodes dead nodes' identity, or not. How are nodes retired. How are nodes
removed if they are compromised) removed if they are compromised)
7.3. Security Considerations for P2P uses 7.3. Security Considerations for P2P uses
(When layer-3 RPL security is used, P2P DODAGs are ephemeral, and may (When layer-3 RPL security is used, P2P DODAGs are ephemeral, and may
have different security needs.) have different security needs.)
8. Other Related Protocols 8. Other Related Protocols
9. IANA Considerations 9. IANA Considerations
10. Acknowledgements 10. Acknowledgements
This document was created from a number source applicatbility This document was created from a number source applicatbility
templates, including draft-ietf-roll-applicability-ami-06.txt, templates, including draft-ietf-roll-applicability-ami-06.txt, draft-
draft-phinney-rpl-industrial-applicability-00.txt. phinney-rpl-industrial-applicability-00.txt.
The document has benefitted from advance review by the IETF Security The document has benefitted from advance review by the IETF Security
Directorate. Directorate.
A number of edits were contributed from Peter van der Stok. A number of edits were contributed from Peter van der Stok, including
the MPL considerations/calculations
11. References 11. References
11.1. Normative References 11.1. Normative References
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119, March 1997. Requirement Levels", BCP 14, RFC 2119, March 1997.
11.2. Informative References 11.2. Informative References
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