Allocating and Retiring Special Purpose MPLS Labels
draft-kompella-mpls-special-purpose-labels-04

Document Type Replaced Internet-Draft (mpls WG)
Last updated 2013-07-09 (latest revision 2013-05-27)
Replaces draft-kompella-mpls-reserved-labels
Replaced by draft-ietf-mpls-special-purpose-labels
Stream IETF
Intended RFC status (None)
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Stream WG state Adopted by a WG
Document shepherd Ross Callon
IESG IESG state Replaced by draft-ietf-mpls-special-purpose-labels
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at
https://www.ietf.org/archive/id/draft-kompella-mpls-special-purpose-labels-04.txt

Abstract

Some MPLS labels have been allocated for specific purposes. A block of labels (0-15) has been set aside to this end, and are commonly called "reserved labels". They will be called "special purpose labels" in this document. As there are only 16 of these labels, caution is needed in the allocation of new special purpose labels, yet at the same time allow forward progress when one is called for. This memo defines some procedures to follow in the allocation and retirement of special purpose labels, as well as a method to extend the special purpose label space. Finally, this memo renames the IANA registry for these labels to "Special Purpose MPLS Label Values", and creates a new one called the "Extended Special Purpose MPLS Label Values" registry.

Authors

Kireeti Kompella (kireeti.kompella@gmail.com)
Adrian Farrel (adrian@olddog.co.uk)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)