White Papers

Traffic Protection in MPLS Networks Using an Off-Line Flow Optimization Model

Overview MPLS-based recovery is intended to effect rapid and complete restoration of traffic affected by a fault in an MPLS network. The paper presents a model of protection switching in MPLS networks. A variant of the flow deviation method is used to find and capacitate a set of optimal label switched paths. The traffic is routed over a set of working LSPs. Protection switching is implemented by reserving a set of pre-established recovery LSPs. A simulation model is used to evaluate the MPLS recovery cycle in terms of the time needed to restore the traffic after a unidirectional link failure. The model is applied to evaluate the effectiveness of protection switching in a 20-node network.

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Publisher
University of Melbourne
File Format
PDF
Date Published
Sep 11, 2008
Format
White Papers
Topics
MPLS, TCP - IP, Switching

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