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 : Fast Reroute Extensions to RSVP-TE for LSP Tunnels
Author(s) : P. Pan et al.
Filename : draft-ietf-mpls-rsvp-lsp-fastreroute-02.txt
Pages : 34
Date : 2003-3-3
This document defines extensions to and describes the use of RSVP to
establish backup label-switched path (LSP) tunnels for local repair
of LSP tunnels. These mechanisms enable the re-direction of traffic
onto backup LSP tunnels in 10s of milliseconds in the event of a
failure.
Two methods are defined here. The one-to-one backup method creates
detour LSPs for each protected LSP at each potential point of local
repair. The facility backup method creates a bypass tunnel to
protect a potential failure point; by taking advantage of MPLS label
stacking, this bypass tunnel can protect a set of protected LSPs that
have similar backup constraints. Both methods can be used to protect
links and nodes during network failure. The described behavior and
extensions to RSVP allow nodes to implement either or both methods
and to interoperate in a mixed network.
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