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IETF RFC 7274
[ACTIVE]

Allocating and Retiring Special-Purpose MPLS Labels

Metadata

Publisher
IETF
Doc Type
Standard
Pages
11
Abstract
Some MPLS labels have been allocated for specific purposes. A block of labels (0-15) has been set aside to this end; these labels are commonly called "reserved labels". They will be called "special-purpose labels" in this document. As there are only 16 of these special-purpose labels, caution is needed in the allocation of new special-purpose labels; yet, at the same time, forward progress should be allowed when one is called for. This memo defines new procedures for the allocation and retirement of special-purpose labels, as well as a method to extend the special-purpose label space and a description of how to handle extended special-purpose labels in the data plane. Finally, this memo renames the IANA registry for special-purpose labels to "Special-Purpose MPLS Label Values" and creates a new registry called the "Extended Special-Purpose MPLS Label Values" registry. This document updates a number of previous RFCs that use the term "reserved label". Specifically, this document updates RFCs 3032, 3038, 3209, 3811, 4182, 4928, 5331, 5586, 5921, 5960, 6391, 6478, and 6790.
Publication Date
2014-06-01
Status Note
Proposed Standard
DOI
10.17487/RFC7274
Link
https://doi.org/10.17487/RFC7274
Author(s)
Kireeti Kompella
Loa Andersson
Adrian Farrel
Latest version of IETF RFC 7274

Document Versions — IETF RFC 7274

  • ▶ IETF RFC 7274 (2014-06-01)
    THIS DOC [ACTIVE] [LATEST VERSION]

Amended by:

Normative Reference(s)

Bibliographic Reference(s)

  • RFC3429 — RFC3429 EXTERNAL
  • IETF RFC 5586 [Active*]
  • RFC5920 — RFC5920 EXTERNAL
  • RFC5921 — RFC5921 EXTERNAL
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IETF RFC 7274, Allocating and Retiring Special-Purpose MPLS Labels. Available at https://doi.org/10.17487/RFC7274
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IETF RFC 7274, Allocating and Retiring Special-Purpose MPLS Labels. Available at https://doi.org/10.17487/RFC7274

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IETF RFC 7274, Allocating and Retiring Special-Purpose MPLS Labels. Available at https://doi.org/10.17487/RFC7274
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<span class="citation"><cite>IETF RFC 7274</cite>, Allocating and Retiring Special-Purpose MPLS Labels. Available at <a href="https://doi.org/10.17487/RFC7274" target="_blank" rel="noopener">https://doi.org/10.17487/RFC7274</a></span>

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IETF RFC 7274, Allocating and Retiring Special-Purpose MPLS Labels
doi: 10.17487/RFC7274
url: https://doi.org/10.17487/RFC7274
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<cite id="bib-rfc7274">IETF RFC 7274</cite>, Allocating and Retiring Special-Purpose MPLS Labels
<span class="doi">10.17487/RFC7274</span>
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