Retiring TLVs from the Associated Channel Header of the MPLS Generic Associated Channel
RFC 7026, “Retiring TLVs from the Associated Channel Header of the MPLS Generic Associated Channel”, is a Proposed Standard document published in September 2013 by A. Farrel, S. Bryant. It updates RFC 5586. The canonical text is published by the RFC Editor.
Abstract
The MPLS Generic Associated Channel (G-ACh) is a generalization of the applicability of the pseudowire (PW) Associated Channel Header (ACH). RFC 5586 defines the concept of TLV constructs that can be carried in messages on the G-ACh by placing them in the ACH between the fixed header fields and the G-ACh message. These TLVs are called ACH TLVs
No Associated Channel Type yet defined uses an ACH TLV. Furthermore, it is believed that handling TLVs in hardware introduces significant problems to the fast path, and since G-ACh messages are intended to be processed substantially in hardware, the use of ACH TLVs is undesirable.
This document updates RFC 5586 by retiring ACH TLVs and removing the associated registry.
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
The canonical text of RFC 7026 is hosted at rfc-editor.org. Available in TXT,HTML.
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