Method for wavelength switch network restoration

Details Method for wavelength switch network restoration Method for wavelength switch network restoration

2006-04-25

2006-04-25

Leung, Christina Y (Department: 2633)

Optical communications

Fault recovery

Wdm

C398S049000

Reexamination Certificate

active

07035537

ABSTRACT:
A fiberoptic network with an optical supervisory channel in each of the optical fibers interconnecting the nodes of the network is described. Together with IP routers, the optical supervisory channels form a control network over which signaling and control signals are exchanged by which provisioning and restoration operations are performed at each node. To restore connections between the nodes upon a failure of the network, the control network helps to maintain at each node a synchronized database of network connections between the nodes, send messages to other nodes to initiate restoration operations by a node noticing the failure; and recalculate network connections around the failure by each node from a synchronized database at the node.

REFERENCES:
patent: 4956835 (1990-09-01), Grover
patent: 5396485 (1995-03-01), Ohno et al.
patent: 5488501 (1996-01-01), Barnsley
patent: 5548639 (1996-08-01), Ogura et al.
patent: 5581543 (1996-12-01), Natarajan
patent: 5586112 (1996-12-01), Tabata
patent: 5592467 (1997-01-01), Takeuchi et al.
patent: 5598403 (1997-01-01), Tatsuki
patent: 5903370 (1999-05-01), Johnson
patent: 5914798 (1999-06-01), Liu
patent: 6073248 (2000-06-01), Doshi et al.
patent: 6233072 (2001-05-01), Liu et al.
patent: 6671256 (2003-12-01), Xiong et al.
International Search Report for PCT/US01/20967.

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