Network Working Group M. Boucadair
Internet-Draft C. Jacquenet
Intended status: Standards Track Orange
Expires: February 5, 2017 August 4, 2016

LISP Experimental Message & IANA Registry for LISP Packet Type Allocations


This document defines a registry for LISP Packet Type allocations. It also specifies a shared LISP message type for experimentation purposes.

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.

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This Internet-Draft will expire on February 5, 2017.

Copyright Notice

Copyright (c) 2016 IETF Trust and the persons identified as the document authors. All rights reserved.

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Table of Contents

1. Introduction

The Locator/ID Separation Protocol (LISP, [RFC6830] ) base specification defines a set of primitives that are identified with a packet type code. Several extensions have been proposed to add more LISP functionalities. For example, new message types are proposed in [I-D.ietf-lisp-ddt], [I-D.zhao-lisp-mn-extension], [I-D.boucadair-lisp-bulk], [I-D.ermagan-lisp-nat-traversal], or [I-D.boucadair-lisp-subscribe]. It is expected that additional LISP extensions will be proposed in the future.

In order to ease the tracking of LISP message types, this document proposes to create a "LISP Packet Types" IANA registry (see Section 4).

Because of the limited type space [RFC6830], this document specifies a shared LISP message type for experimentation purposes and proposes a procedure for registering LISP experiment sub-types (see Section 2) that make use of additional LISP capabilities associated with this message type. Concretely, one single LISP message type code is dedicated to experiments; sub-types are used to uniquely identify a given LISP experimental message. These identifiers are selected by the author(s) of the corresponding LISP specification that introduces a new experimental message type.

2. LISP Message Type for Experimentations

Figure 1 depicts a common LISP experimental message type. The type field MUST be set to 15 (see Section 4).

        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
       |Type=15|        Sub-type       |  experiment-specific          |
       //                   experiment-specific                       //
       //                                                             //

Figure 1: Common LISP Experimental Message Type

[RFC5226]. These identifiers are registered with IANA (see Section 4.2).

The exact structure of the 'experiment-specific' portion of the message is specified in the corresponding specification document.

3. Security Considerations

This document does not introduce any additional security issues other than those discussed in [RFC6830].

4. IANA Considerations

4.1. LISP Packet Types

IANA is requested to create a new protocol registry for LISP Packet Types, numbered 0-15. The registry must be initially populated with the following values:

Message                           Code    Reference
================================= ==== ===============
Reserved                           0      [RFC6830]
LISP Map-Request                   1      [RFC6830]
LISP Map-Reply                     2      [RFC6830]
LISP Map-Register                  3      [RFC6830]
LISP Map-Notify                    4      [RFC6830]
LISP Encapsulated Control Message  8      [RFC6830]
LISP Experimental Message         15   [This document]

The values in the ranges 5-7 and 9-14 can be assigned via Standards Action [RFC5226]. Documents that request for a new LISP packet type may indicate a preferred value in the corresponding IANA sections.

The value 15 is reserved for Experimental Use [RFC5226].

4.2. Sub-Types

IANA is requested to create a "LISP Experimental Message Sub-types" registry.

Entries are assigned on a FCFS basis.

The registration procedure should provide IANA with the desired codepoint and a point of contact. Providing a short description (together with an acronym, if relevant) of the foreseen usage of the experimental message is also encouraged.

5. Acknowledgments

This work is partly funded by ANR LISP-Lab project #ANR-13-INFR-009-X.

Many thanks to Luigi Iannone and Dino Farinacci for the review.

6. References

6.1. Normative references

[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, DOI 10.17487/RFC2119, March 1997.
[RFC5226] Narten, T. and H. Alvestrand, "Guidelines for Writing an IANA Considerations Section in RFCs", BCP 26, RFC 5226, DOI 10.17487/RFC5226, May 2008.
[RFC6830] Farinacci, D., Fuller, V., Meyer, D. and D. Lewis, "The Locator/ID Separation Protocol (LISP)", RFC 6830, DOI 10.17487/RFC6830, January 2013.

6.2. Informative References

[I-D.boucadair-lisp-bulk] Boucadair, M. and C. Jacquenet, "LISP Mapping Bulk Retrieval", Internet-Draft draft-boucadair-lisp-bulk-03, July 2016.
[I-D.boucadair-lisp-subscribe] Boucadair, M. and C. Jacquenet, "LISP Subscription", Internet-Draft draft-boucadair-lisp-subscribe-03, July 2016.
[I-D.ermagan-lisp-nat-traversal] Ermagan, V., Farinacci, D., Lewis, D., Skriver, J., Maino, F. and C. White, "NAT traversal for LISP", Internet-Draft draft-ermagan-lisp-nat-traversal-10, February 2016.
[I-D.ietf-lisp-ddt] Fuller, V., Lewis, D., Ermagan, V., Jain, A. and A. Smirnov, "LISP Delegated Database Tree", Internet-Draft draft-ietf-lisp-ddt-07, May 2016.
[I-D.zhao-lisp-mn-extension] Wang, J., Meng, Y. and N. Zhao, "LISP Mobile Node extension", Internet-Draft draft-zhao-lisp-mn-extension-02, October 2011.

Authors' Addresses

Mohamed Boucadair Orange Rennes, 35000 France EMail:
Christian Jacquenet Orange Rennes, 35000 France EMail: