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Multiprotocol Label Switching (MPLS) Label Stack Entry: "EXP" Field Renamed to "Traffic Class" Field
RFC 5462

Revision differences

Document history

Date By Action
2020-01-21
(System) Received changes through RFC Editor sync (added Verified Errata tag)
2018-12-20
(System)
Received changes through RFC Editor sync (changed abstract to 'The early Multiprotocol Label Switching (MPLS) documents defined the form of the MPLS label stack entry. …
Received changes through RFC Editor sync (changed abstract to '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]')
2017-05-16
(System) Changed document authors from "Loa Andersson" to "Loa Andersson, Rajiv Asati"
2015-10-14
(System) Notify list changed from mpls-chairs@ietf.org, draft-ietf-mpls-cosfield-def@ietf.org to (None)
2009-03-18
(System) IANA Action state changed to No IC from In Progress
2009-02-25
Cindy Morgan State Changes to RFC Published from RFC Ed Queue by Cindy Morgan
2009-02-25
Cindy Morgan [Note]: 'RFC 5462' added by Cindy Morgan
2009-02-25
(System) RFC published