Network Working Group M. Boucadair
Internet-Draft C. Jacquenet
Intended status: Standards Track Orange
Expires: December 26, 2016 June 24, 2016

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 December 26, 2016.

Copyright Notice

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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.boucadair-lisp-subscribe], or [I-D.boucadair-lisp-ms-assisted-forwarding]. 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 identifiers (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; experiment identifiers 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|     Experiment ID     |  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].

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

4.2. Experiment IDs

IANA is requested to create a "LISP Experimental Message Experiment Identifiers" 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.

The shared experiment ID is inspired by [RFC6994].

Many thanks to Luigi Iannone 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-01, March 2016.
[I-D.boucadair-lisp-ms-assisted-forwarding] Boucadair, M. and C. Jacquenet, "Mapping System-Assisted Forwarding for Inter-Domain LISP Deployments", Internet-Draft draft-boucadair-lisp-ms-assisted-forwarding-00, September 2015.
[I-D.boucadair-lisp-subscribe] Boucadair, M. and C. Jacquenet, "Improving Mapping Services in LISP Networks", Internet-Draft draft-boucadair-lisp-subscribe-02, March 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.
[RFC6994] Touch, J., "Shared Use of Experimental TCP Options", RFC 6994, DOI 10.17487/RFC6994, August 2013.

Authors' Addresses

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