A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Multiprotocol Label Switching Working Group of the IETF.
Title : PathErr Message Triggered MPLS and GMPLS LSP Reroute
Author(s) : L. Berger, et al.
Filename : draft-ietf-mpls-gmpls-lsp-reroute-01.txt
Pages : 10
Date : 2008-09-02
This document describes how Resource ReserVation Protocol (RSVP)
PathErr Messages may be used to trigger rerouting of Multi-Protocol
Label Switching (MPLS) and Generalized MPLS (GMPLS) Traffic
Engineering (TE) Label Switched Paths (LSPs) without first removing
LSP state or resources. Such LSP rerouting may be desirable in a
number of cases including, for example, soft-preemption and graceful
shutdown. This document describes the usage of existing Standards
Track mechanisms to support LSP rerouting. In this case, it relies on
mechanisms already defined as part of RSVP-TE and simply describes a
sequence of actions to be executed. While existing protocol
definition can be used to support reroute applications, this document
also defines a new reroute-specific error code to allow for the
future definition of reroute application-specific error values.
A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-ietf-mpls-gmpls-lsp-reroute-01.txt
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ftp://ftp.ietf.org/internet-drafts/
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Internet-Draft.
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