Method and system for shared backup allocation in networks...

Details Method and system for shared backup allocation in networks... Method and system for shared backup allocation in networks...

2004-09-30

2009-10-20

Ngo, Ricky (Department: 2416)

Multiplex communications

Fault recovery

Bypass an inoperative switch or inoperative element of a...

C370S228000, C370S252000

Reexamination Certificate

active

07606142

ABSTRACT:
A method comprises allocating a respective restoration path to protect each of a plurality of primary paths in a network. Each primary path has a plurality of nodes and at least two subpaths connecting the nodes of the primary path. Each restoration path includes at least one link. Each link protects at least one of the subpaths of the primary path. Each of the subpaths of the primary path is protected. None of the links in the restoration path is included in the corresponding primary path. At least one of the links is shared among at least two restoration paths corresponding to at least two of the primary paths.

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Li Li et al., “Routing Bandwidth Guaranteed Paths with Local Restoration in Label Switched Networks”, Proc. IEEE International Conference on Network Protocols (ICNP), Nov. 2002, pp. 1-11.

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