Subject: RE: [PCE] About ASBR locate

From: MachChen 55527 <[email-masked]>
Date: Wed, 08 Nov 2006 16:36:26 -0800

Hi Gergory,

Fisrt, thanks for questions.

Your question: How a RR avoid sending ASBR info(carried by EBGP summary session nlri) to non-PCE router?

In our I-D, we defined a new AFI/SAFI pair for such EBGP summary session nlri. So when a router begins to set up a connecton with RR, they will do capability negotiation. If the router dosen't carry such new AFI/SAFI info in the open message(indicates it's a non-PCE router or a router which doesn't consern about such info), then the RR will not send any such ASBR info to that router.

Any feedback and comments are welcome.

Best regards,

Mach Chen

FYI:

A New Internet-Draft is available from the on-line Internet-Drafts 
directories.

	Title		: Locate ASBR in PCE 
	Author(s)	: R. Zhang, M. Chen
	Filename	: draft-zhang-pce-locate-asbr-00.txt
	Pages		: 8
	Date		: 2006-10-12
	
   The ability to compute constrained shortest Traffic Engineering (TE) 
   Label Switched Paths (LSPs) in Multiprotocol Label Switching (MPLS) 
   and Generalized MPLS (GMPLS) networks across multiple domains has 
   been identified as a key requirement. This document specifies a 
   procedure for an inter-AS PCE to locate boundary node within its 
   domain dynamically, which is used for path computation. 

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