Subject: [OPSAWG] Please review draft-cauchie-opsawg-monitoring-mpls-label-mapping-00.txt

From: <[email-masked]>
Date: Thu, 21 Oct 2010 18:25:40 +0200

Hi working group,

I just submitted this new draft about the monitoring of MPLS LSPs. As a Service provider, we have some troubles getting a multi-vendor solution that will allow us to retrieve complete information about MPLS LSP establishment over time. That is why this draft is proposing a method that does not imply any protocol changes but sets some procedures and format to collect the active label mappings of each routers in an accurate way while not impacting the network convergence performance.

I believe this method would be very useful to network operators and thus would appreciate any feedback and comments.

Greg

-----Message d'origine-----
De : [email-masked] [mailto:[email-masked]] De la part de [email-masked]
Envoyé : jeudi 21 octobre 2010 18:00
À : [email-masked]
Objet : I-D ACTION:draft-cauchie-opsawg-monitoring-mpls-label-mapping-00.txt 

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

	Title		: A method to monitor MPLS label mappings
	Author(s)	: G. Cauchie
	Filename	: draft-cauchie-opsawg-monitoring-mpls-label-mapping-00.txt
	Pages		: 18
	Date		: 2010-10-18
	
   Because one MPLS label only identifies one single flow on a link
   between two MPLS routers, information related to one MPLS label is
   exchanged only between (physically and logically) neighbour routers.
   In other words, MPLS label have a link-local significance on which
   two neighbour routers have previously agreed on.  It is therefore not
   a trivial task for a network operator to know where a flow is going
   as it implies to retreive the MPLS labels mappings on each hops in
   order to get a complete view of end-to-end LSP paths.  This taks is
   even harder when it comes to get the MPLS label mappings over time in
   a purpose of monitoring and/or troubleshooting network services.

   This document thus defines a new method to monitor MPLS label
   mappings that collects and stores MPLS labels mapping information so
   as to offer to one IP/MPLS network operator a reliable and clear view
   of its network LSPs end-to-end establishment over time while
   minimising the impact on network convergence and router CPU.

A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-cauchie-opsawg-monitoring-mpls-label-mapping-00.txt

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