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A disjoint path selection scheme with shared risk link groups in GMPLS networks

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4 Author(s)
Oki, E. ; Network Innovation Labs., NTT Corp., Tokyo, Japan ; Matsuura, N. ; Kohei Shiomoto, ; Yamanaka, N.

This letter proposes a disjoint path selection scheme for generalized multi-protocol label switching (GMPLS) networks with shared risk link group (SRLG) constraints. It is called the weighted-SRLG (WSRLG) scheme. It treats the number of SRLG members related to a link as part of the link cost when the k-shortest path algorithm is executed. In WSRLG, a link that has many SRLG members is rarely selected as the shortest path. Simulation results show that WSRLG finds more disjoint paths than the conventional k-shortest path algorithm.

Published in:

Communications Letters, IEEE  (Volume:6 ,  Issue: 9 )