Method for restoring a virtual path in an optical network...

Details Method for restoring a virtual path in an optical network... Method for restoring a virtual path in an optical network...

2007-04-03

2007-04-03

Qureshi, Afsar (Department: 2616)

Multiplex communications

Fault recovery

C370S227000, C370S250000, C370S397000

Reexamination Certificate

active

09859166

ABSTRACT:
A method for restoring a virtual path, provisioned between a source and a target node, in a zoned mesh optical network is described. The method, in one embodiment, allocates a primary and a secondary physical path to the virtual path. The two physical paths are network element and link disjoint. In case of a failure in one physical path, the end nodes switch the virtual path to the other physical path.

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