MPLS Generic Associated Channel

Document Type Replaced Internet-Draft (individual)
Last updated 2009-04-13 (latest revision 2008-10-27)
Replaces draft-vigoureux-mpls-tp-gal, draft-bocci-pwe3-mpls-tp-ge-ach
Replaced by draft-ietf-mpls-tp-gach-gal
Stream (None)
Intended RFC status (None)
Expired & archived
plain text pdf html
Stream Stream state (No stream defined)
Document shepherd No shepherd assigned
IESG IESG state Replaced by draft-ietf-mpls-tp-gach-gal
Telechat date
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document generalises the applicability of the pseudowire Associated Channel Header (ACH), enabling the realization of a control channel associated to MPLS Label Switched Paths (LSP), MPLS pseudowires (PW) and MPLS Sections. In order to identify the presence of this G-ACH, this document also assigns of one of the reserved MPLS label values to the 'Generic Alert Label (GAL)', to be used as a label based exception mechanism.


Rahul Aggarwal (
Martin Vigoureux (
George Swallow (
Matthew Bocci (
David Ward (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)