I-D ACTION:draft-cao-mpls-te-p2mp-head-protection-00.txt

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	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-00.txt
	Pages		: 23
	Date		: 2007-7-5
	
   Protection methods for RSVP-TE P2MP LSP have been discussed by [TE-
   FRR]([RFC4090]) and [P2MP-TE-Bypass], but there are no solutions to 
   protect 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 extension for such protection is also 
   described. 

   To protect the head node, a backup head node must be appointed and 
   take the responsibility to forward the traffic to downstream LSRs of 
   the protected head node. Generally, the backup head node is not on 
   the path of protected LSP. Similar to [TE-FRR] there are two methods 

   can apply: one-to-one backup and facility backup and facility backup. 
   Only one-to-one backup is described in details, facility backup will 
   be discussed in future version of this draft. 


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