Internet Engineering Task Force (IETF) L. Andersson
Request for Comments: 7214 Huawei
Updates: 5586, 6374, 6378, 6427, 6428 C. Pignataro
Category: Standards Track Cisco
ISSN: 2070-1721 May 2014 Moving Generic Associated Channel (G-ACh) IANA Registries
to a New Registry
RFC 5586 generalized the applicability of the pseudowire Associated
Channel Header (PW-ACH) into the Generic Associated Channel G-ACh.
However, registries and allocations of G-ACh parameters had been
distributed throughout different, sometimes unrelated, registries.
This document coalesces these into a new "Generic Associated Channel
(G-ACh) Parameters" registry under the "Multiprotocol Label Switching
Architecture (MPLS)" heading. This document updates RFC 5586.
This document also updates RFCs 6374, 6378, 6427, and 6428.
Status of This Memo
This is an Internet Standards Track document.
This document is a product of the Internet Engineering Task Force
(IETF). It represents the consensus of the IETF community. It has
received public review and has been approved for publication by the
Internet Engineering Steering Group (IESG). Further information on
Internet Standards is available in Section 2 of RFC 5741.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
Further, the "Pseudowire Associated Channel Types" registry is
renamed to "Generalized Associated Channel (G-ACh) Types (including
Pseudowire Associated Channel Types)" to make its generalized status
explicit, and it is moved into the newly created registry.
Additionally, RFC 6374 [RFC6374], RFC 6378 [RFC6378], RFC 6427
[RFC6427], and RFC 6428 [RFC6428] specify allocations within the
G-ACh that are now moved into the new registry.
With respect to where to find these IANA registries, the RFCs listed
above are updated as indicated in Section 3; however, the registries
themselves are not changed (with the exception of one being renamed).
They are moved unchanged to the new registry.
2. IANA Considerations
IANA has added this document as a reference for each registry that
has been moved or renamed as a result of actions requested by this
IANA has replaced all the relocated registries with pointers to the
new URL or with a redirect.
2.1. Creation of a New Generic Associated Channel (G-ACh) Parameters
IANA has created a new "Generic Associated Channel (G-ACh)
Parameters" registry. This is the common registry that will include
all the registries being moved in Sections 2.2 and 2.3.
2.2. Renaming and Moving the Pseudowire Associated Channel Types
This document renames the "Pseudowire Associated Channel Types"
registry [IANA-PWE3] to "MPLS Generalized Associated Channel (G-ACh)
Types (including Pseudowire Associated Channel Types)". This
registry has been moved and included in the "Generic Associated
Channel (G-ACh) Parameters" registry created in Section 2.1 because
any additional registries are dependent upon the Associated Channel
At the time of publishing this document and moving the registry, the
following RFCs have G-ACh Types allocated: [RFC4385], [RFC5586],
[RFC5718], [RFC5885], [RFC6374], [RFC6378], [RFC6426], [RFC6427],
[RFC6428], [RFC6435], [RFC6478], and [RFC6671].
2.3. Consolidating G-ACh Registries
This document further updates the following RFCs by moving the
registries related to G-ACh to the common "Generic Associated Channel
(G-ACh) Parameters" registry created in Section 2.1.
o From the PWE Parameters Registry [IANA-PWE3]:
* MPLS Generalized Associated Channel (G-ACh) Types [RFC5586]
* CC/CV MEP-ID TLV Registry [RFC6428]
o From the MPLS LSP Ping Parameters Registry [IANA-LSP-Ping]:
* Measurement Timestamp Type [RFC6374]
* Loss/Delay Measurement Control Code: Query Codes [RFC6374]
* Loss/Delay Measurement Control Code: Response Codes [RFC6374]
* MPLS Loss/Delay Measurement TLV Object [RFC6374]
o From the MPLS OAM Parameters Registry [IANA-MPLS-OAM]:
* MPLS Fault OAM Message Type Registry [RFC6427]
* MPLS Fault OAM Flag Registry [RFC6427]
* MPLS Fault OAM TLV Registry [RFC6427]
* MPLS PSC Request Registry [RFC6378]
* MPLS PSC TLV Registry [RFC6378]
Note that all the sub-registries in [IANA-MPLS-OAM] have been
removed from "Multiprotocol Label Switching (MPLS) Operations,
Administration, and Management (OAM) Parameters" registry.
Therefore, the IANA has removed the MPLS OAM registry, per this
3. RFC Updates
This document updates [RFC5586] renaming the "Pseudowire Associated
Channel Types" [IANA-PWE3] to "MPLS Generalized Associated Channel
(G-ACh) Types (including Pseudowire Associated Channel Types)".
This document also updates the following RFCs by moving the G-ACh
related registries to a common "MPLS Generic Associated Channel
(G-ACh) Parameters" registry: RFCs 6374, 6378, 6427, and 6428.
All the registries listed above are moved without any changes to
their content. The reason to move them is to create on single place
where it is possible to find all the G-ACh parameters.
4. Security Considerations
The IANA instructions in this document do not directly introduce any
new security issues.
The authors want to thank Amanda Baber and Scott Bradner for review
and valuable comments.
6.1. Normative References
[RFC5586] Bocci, M., Vigoureux, M., and S. Bryant, "MPLS Generic
Associated Channel", RFC 5586, June 2009.
[RFC6374] Frost, D. and S. Bryant, "Packet Loss and Delay
Measurement for MPLS Networks", RFC 6374, September 2011.
[RFC6378] Weingarten, Y., Bryant, S., Osborne, E., Sprecher, N., and
A. Fulignoli, "MPLS Transport Profile (MPLS-TP) Linear
Protection", RFC 6378, October 2011.
[RFC6427] Swallow, G., Fulignoli, A., Vigoureux, M., Boutros, S.,
and D. Ward, "MPLS Fault Management Operations,
Administration, and Maintenance (OAM)", RFC 6427, November
[RFC6428] Allan, D., Swallow Ed. , G., and J. Drake Ed. , "Proactive
Connectivity Verification, Continuity Check, and Remote
Defect Indication for the MPLS Transport Profile", RFC
6428, November 2011.