[GROW] I-D ACTION:draft-ietf-grow-bgp-graceful-shutdown-requirements-07.txt

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A New Internet-Draft is available from the on-line Internet-Drafts 
directories.
This draft is a work item of the Global Routing Operations Working Group of the IETF.

	Title		: Requirements for the graceful shutdown of BGP sessions
	Author(s)	: T. Takeda, B. Decraene, P. Francois, c. pelsser, Z. Ahmad, A. Armengol
	Filename	: draft-ietf-grow-bgp-graceful-shutdown-requirements-07.txt
	Pages		: 19
	Date		: 2011-1-31
	
The Border Gateway Protocol(BGP) is heavily used in Service Provider 
networks both for Internet and BGP/MPLS VPN services. For resiliency 
purposes, redundant routers and BGP sessions can be deployed to 
reduce the consequences of an AS Border Router or BGP session 
breakdown on customers' or peers' traffic. However simply taking down 
or even bringing up a BGP session for maintenance purposes may still 
induce connectivity losses during the BGP convergence. This is not 
satisfactory any more for new applications (e.g. voice over IP, on 
line gaming, VPN). Therefore, a solution is required for the graceful 
shutdown of a (set of) BGP session(s) in order to limit the amount of 
traffic loss during a planned shutdown. This document expresses 
requirements for such a solution.

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