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Title : Multiprotocol Label Switching Pre-emption
Author(s) : A. Farrel
Filename : draft-farrel-mpls-preemption-01.txt
Pages : 15
Date : 2004-4-9
Multiprotocol Label Switching (MPLS) signaling is documented in
'RSVP-TE: Extensions to RSVP for LSP Tunnels', RFC 3209, using
mechanisms inherited from 'Resource ReserVation Protocol --
Version 1 Functional Specification', RFC 2205.
MPLS includes the concept of pre-emption where, for administrative
reasons such as contention for system resources, a new Label Switched
Path (LSP) may displace an existing LSP.
This document clarifies the procedures for MPLS pre-emption in the
light of implementation experience. The procedures in this document
update those described in RFC 2205 and RFC 3209, but apply only to
RSVP-TE used in the MPLS context.
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