I-D ACTION:draft-ietf-mpls-soft-preemption-06.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 Multiprotocol Label Switching Working Group of the IETF.

	Title		: MPLS Traffic Engineering Soft Preemption
	Author(s)	: M. Meyer, et al.
	Filename	: draft-ietf-mpls-soft-preemption-06.txt
	Pages		: 13
	Date		: 2005-6-16
	
This document details MPLS Traffic Engineering Soft Preemption, a 
  suite of protocol modifications extending the concept of preemption 
  with the goal of reducing/eliminating traffic disruption of preempted 
  Traffic Engineering Label Switched Paths (TE LSPs). Initially MPLS 
  RSVP-TE was defined supporting only immediate TE LSP displacement 
  upon preemption. The utilization of a preemption pending flag helps 
  more gracefully mitigate the re-route process of preempted TE LSP. 
  For the brief period soft preemption is activated, reservations 
  (though not necessarily traffic levels) are in effect under-
  provisioned until the TE LSP(s) can be re-routed. For this reason, 
  the feature is primarily but not exclusively interesting in MPLS 
  enabled IP networks with Differentiated Services and Traffic 
  Engineering capabilities.

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