Method of preconfiguring optical protection trails in a...

Details Method of preconfiguring optical protection trails in a... Method of preconfiguring optical protection trails in a...

2007-05-29

2007-05-29

Tran, Dzung (Department: 2613)

Optical communications

Fault recovery

Bypass inoperative element

C398S010000, C398S025000

Reexamination Certificate

active

10424396

ABSTRACT:
The method of pre-configuring the optical protect paths in an agile photonic network establishes a protection trail for each optical working path that may be set-up in the network. The pre-configuration is based on building an electrical layer (EXC) graph that takes into account all the connection demands in the network, and finding on this EXC graph a plurality of cycles. Next, the EXC cycles are validated at the optical layer, and are further validated against constraints. The method attempts to find an optimal cycles solution, without exhausting all possible variants.

REFERENCES:
patent: 6901048 (2005-05-01), Wang et al.
patent: 6914880 (2005-07-01), Grover et al.
patent: 2002/0071392 (2002-06-01), Grover et al.
patent: 2003/0229807 (2003-12-01), Qiao et al.
patent: 2004/0109407 (2004-06-01), Grover et al.
“Cycle-Oriented Distributed Preconfiguration: Ring-Like Speed with Mesh-Like Capacity for Self-Planning Network Restoration” Grover, IEEE, 1998, p. 537-543.

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