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IETF RFC 5462
[ACTIVE]

Multiprotocol Label Switching (MPLS) Label Stack Entry: "EXP" Field Renamed to "Traffic Class" Field

Metadata

Publisher
IETF
Doc Type
Standard
Pages
9
Abstract
The early Multiprotocol Label Switching (MPLS) documents defined the form of the MPLS label stack entry. This includes a three-bit field called the "EXP field". The exact use of this field was not defined by these documents, except to state that it was to be "reserved for experimental use". Although the intended use of the EXP field was as a "Class of Service" (CoS) field, it was not named a CoS field by these early documents because the use of such a CoS field was not considered to be sufficiently defined. Today a number of standards documents define its usage as a CoS field. To avoid misunderstanding about how this field may be used, it has become increasingly necessary to rename this field. This document changes the name of the field to the "Traffic Class field" ("TC field"). In doing so, it also updates documents that define the current use of the EXP field. [STANDARDS-TRACK]
Publication Date
2009-02-01
Status Note
Proposed Standard
DOI
10.17487/RFC5462
Link
https://doi.org/10.17487/RFC5462
Author(s)
Loa Andersson
Rajiv Asati
Keyword(s)
Class of Service
Latest version of IETF RFC 5462

Document Versions — IETF RFC 5462

  • ▶ IETF RFC 5462 (2009-02-01)
    THIS DOC [ACTIVE] [LATEST VERSION]

Normative Reference(s)

Bibliographic Reference(s)

  • Shayman, M. and R. Jaeger, "Using ECN to Signal Congestion Within an MPLS Domain", Work in Progress, November 2000. EXTERNAL
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IETF RFC 5462, Multiprotocol Label Switching (MPLS) Label Stack Entry: "EXP" Field Renamed to "Traffic Class" Field. Available at https://doi.org/10.17487/RFC5462
Snippet:
IETF RFC 5462, Multiprotocol Label Switching (MPLS) Label Stack Entry: "EXP" Field Renamed to "Traffic Class" Field. Available at https://doi.org/10.17487/RFC5462

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IETF RFC 5462, Multiprotocol Label Switching (MPLS) Label Stack Entry: "EXP" Field Renamed to "Traffic Class" Field. Available at https://doi.org/10.17487/RFC5462
Snippet:
<span class="citation"><cite>IETF RFC 5462</cite>, Multiprotocol Label Switching (MPLS) Label Stack Entry: &quot;EXP&quot; Field Renamed to &quot;Traffic Class&quot; Field. Available at <a href="https://doi.org/10.17487/RFC5462" target="_blank" rel="noopener">https://doi.org/10.17487/RFC5462</a></span>

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IETF RFC 5462, Multiprotocol Label Switching (MPLS) Label Stack Entry: "EXP" Field Renamed to "Traffic Class" Field
doi: 10.17487/RFC5462
url: https://doi.org/10.17487/RFC5462
Snippet:
<li>
<cite id="bib-rfc5462">IETF RFC 5462</cite>, Multiprotocol Label Switching (MPLS) Label Stack Entry: &quot;EXP&quot; Field Renamed to &quot;Traffic Class&quot; Field
<span class="doi">10.17487/RFC5462</span>
</li>

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