Internet Engineering Task Force (IETF)
Request for Comments: 7214
Updates: 5586, 6374, 6378, 6427, 6428
Category: Standards Track
ISSN: 2070-1721

L. Andersson
Huawei
C. Pignataro
Cisco
May 2014

Moving Generic Associated Channel (G-ACh) IANA Registries

to a New Registry

Abstract

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 http://www.rfc-editor.org/info/rfc7214.

Copyright Notice

This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (http://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must include Simplified BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License.

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   3
     2.1.  Creation of a New Generic Associated Channel (G-ACh)
           Parameters IANA Registry  . . . . . . . . . . . . . . . .   3
     2.2.  Renaming and Moving the Pseudowire Associated Channel
           Types Registry  . . . . . . . . . . . . . . . . . . . . .   3
     2.3.  Consolidating G-ACh Registries  . . . . . . . . . . . . .   4
   3.  RFC Updates . . . . . . . . . . . . . . . . . . . . . . . . .   4
   4.  Security Considerations . . . . . . . . . . . . . . . . . . .   5
   5.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   5
   6.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   5
     6.1.  Normative References  . . . . . . . . . . . . . . . . . .   5
     6.2.  Informative References  . . . . . . . . . . . . . . . . .   6

1. Introduction

RFC 5586 generalized the PW-ACH into the G-ACh. However, registries and allocations of G-ACh namespaces had been distributed throughout different registries. This document coalesces these into a new "Generic Associated Channel (G-ACh) Parameters" registry in the "Multiprotocol Label Switching Architecture (MPLS)" name space. This reorganization achieves two purposes: it allocates the G-ACh registries in their natural place in the MPLS names space, and it provides a single view of the G-ACh registries, to simplify future assignments and avoid potential conflicts. This is an update to RFC 5586 [RFC5586].

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 document.

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 Registry

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

Registry

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 Header Type.

   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.

From the PWE Parameters Registry [IANA-PWE3]:

      *  MPLS Generalized Associated Channel (G-ACh) Types [RFC5586]
      
      *  CC/CV MEP-ID TLV Registry [RFC6428]

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]

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 document.

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.

5. Acknowledgements

The authors want to thank Amanda Baber and Scott Bradner for review and valuable comments.

6. References

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
              2011.
   
   [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.

6.2. Informative References

[IANA-LSP-Ping]

              IANA, "Multi-Protocol Label Switching (MPLS) Label
              Switched Paths (LSPs) Ping Parameters",
              <http://www.iana.org/assignments/
              mpls-lsp-ping-parameters>.

[IANA-MPLS-OAM]

              IANA, "Multiprotocol Label Switching (MPLS) Operations,
              Administration, and Management (OAM) Parameters", content
              has been moved to
              <http://www.iana.org/assignments/g-ach-parameters/>.

[IANA-PWE3]

              IANA, "Pseudowire Name Spaces (PWE3)",
              <http://www.iana.org/assignments/pwe3-parameters>.
   
   [RFC4385]  Bryant, S., Swallow, G., Martini, L., and D. McPherson,
              "Pseudowire Emulation Edge-to-Edge (PWE3) Control Word for
              Use over an MPLS PSN", RFC 4385, February 2006.
   
   [RFC5718]  Beller, D. and A. Farrel, "An In-Band Data Communication
              Network For the MPLS Transport Profile", RFC 5718, January
              2010.
   
   [RFC5885]  Nadeau, T. and C. Pignataro, "Bidirectional Forwarding
              Detection (BFD) for the Pseudowire Virtual Circuit
              Connectivity Verification (VCCV)", RFC 5885, June 2010.
   
   [RFC6426]  Gray, E., Bahadur, N., Boutros, S., and R. Aggarwal, "MPLS
              On-Demand Connectivity Verification and Route Tracing",
              RFC 6426, November 2011.
   
   [RFC6435]  Boutros, S., Sivabalan, S., Aggarwal, R., Vigoureux, M.,
              and X. Dai, "MPLS Transport Profile Lock Instruct and
              Loopback Functions", RFC 6435, November 2011.
   
   [RFC6478]  Martini, L., Swallow, G., Heron, G., and M. Bocci,
              "Pseudowire Status for Static Pseudowires", RFC 6478, May
              2012.
   
   [RFC6671]  Betts, M., "Allocation of a Generic Associated Channel
              Type for ITU-T MPLS Transport Profile Operation,
              Maintenance, and Administration (MPLS-TP OAM)", RFC 6671,
              November 2012.

Authors' Addresses

Loa Andersson
Huawei

   EMail: loa@mail01.huawei.com

Carlos Pignataro
Cisco Systems, Inc.

EMail:

          cpignata@cisco.com