MPLS Generic Associated Channel (G-ACh) Advertisement Protocol (RFC7212)
Original Publication Date: 2014-Jun-01
Included in the Prior Art Database: 2014-Jun-18
Internet Society Requests For Comment (RFCs)
D. Frost: AUTHOR [+3]
The MPLS Generic Associated Channel (G-ACh) is defined and described in [RFC5586]. It provides an auxiliary logical data channel over which a variety of protocols may flow. Each such data channel is associated with an MPLS Label Switched Path (LSP), a pseudowire, or a section (link). An important use of the G-ACh and the protocols it supports is to provide Operations, Administration, and Maintenance (OAM) [RFC6291] capabilities for the associated LSP, pseudowire, or section. Examples of such capabilities include Pseudowire Virtual Circuit Connectivity Verification (VCCV) [RFC5085]; Bidirectional Forwarding Detection (BFD) for MPLS [RFC5884]; and MPLS packet loss, delay, and throughput measurement [RFC6374]; as well as OAM functions developed for the MPLS Transport Profile (MPLS-TP) [RFC5921].
Internet Engineering Task Force (IETF) D. Frost Request for Comments: 7212 Blue Sun Category: Standards Track S. Bryant ISSN: 2070-1721 Cisco Systems M. Bocci Alcatel-Lucent June 2014
MPLS Generic Associated Channel (G-ACh) Advertisement Protocol
The MPLS Generic Associated Channel (G-ACh) provides an auxiliary logical data channel associated with a Label Switched Path (LSP), a pseudowire, or a section (link) over which a variety of protocols may flow. These protocols are commonly used to provide Operations, Administration, and Maintenance (OAM) mechanisms associated with the primary data channel. This document specifies simple procedures by which an endpoint of an LSP, pseudowire, or section may inform the other endpoints of its capabilities and configuration parameters, or other application-specific information. This information may then be used by the receiver to validate or adjust its local configuration, and by the network operator for diagnostic purposes.
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/rfc7212.
al. Standards Track [Page 1]
RFC 7212 MPLS G-ACh Advertisement Protocol June 2014
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