A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : Head Node Protection Extensions to RSVP-TE for LSP Tunnels
Author(s) : W. Cao, M. Chen
Filename : draft-cao-mpls-te-p2mp-head-protection-01.txt
Pages : 17
Date : 2007-11-17
Protection methods for RSVP-TE P2MP LSP have been described in [TE-
FRR]([RFC4090]) and [P2MP-TE-Bypass], but there are no solutions to
protect an RSVP-TE P2MP head node. This document discusses the
scenario for RSVP-TE P2MP LSP head node failure protection and
describes the protection procedures. RSVP-TE extensions for such
protection are also described.
To protect the head node, a backup head node is appointed which
forwards traffic to downstream LSRs of the LSP when the protected
head node fails. The backup head node is not on the path of protected
LSP. Similar to [TE-FRR] there are two methods that can apply: one-
to-one backup and facility backup. Only one-to-one backup is
described in detail here, facility backup will be discussed in a
future version of this draft.
Conventions used in this document
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in RFC 2119.
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