A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : Procedure for Multiple Node Graceful Restart
Author(s) : D. Li, J. Gao
Filename : draft-li-ccamp-multinodes-gr-proc-00.txt
Pages : 14
Date : 2006-6-21
The Hello message for the Resource Reservation Protocol (RSVP) has
been defined to establish and maintain basic signaling node
adjacencies for Label Switching Routers (LSRs) participating in a
Multiprotocol Label Switching (MPLS) traffic engineered (TE) network.
The Hello message has been extended for use in Generalized MPLS
(GMPLS) network for state recovery of control channel or nodal
faults.
GMPLS protocol definitions for RSVP also allow a restarting node to
learn the label that it previously allocated for use on a Label
Switching Path (LSP).
Further RSVP protocol extensions have been defined to enable a
restarting node to recover full control plane state by exchanging
RSVP messages with its upstream and downstream neighbors.
This document clarifies the control plane procedures for a GMPLS
network when there are multiple node failures, and describes how full
control plane state can be recovered depending on the order in which
the nodes restart.
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