Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1998-02-20
2000-08-29
Pascal, Leslie
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359161, H04B 1008
Patent
active
061116726
ABSTRACT:
An method, apparatus, and computer program product for restoring a failed system in an optical mesh network. A system includes a first light termination element (LTE) and a second LTE. A first node in the network includes an optical switching unit (OSU) coupled to the first (LTE) of the system. A second node in the network includes a second OSU coupled to the second (LTE) of the system. The first node is coupled to the second node by a path. Optical data traffic can be transmitted between the first node and the second node via the path. Upon detection of a failure of the system, the first OSU and second OSU are notified of the failure. A primary role is assigned to one of the first and second OSUs, and a secondary role is assigned to the other one of the first and second OSUs. A primary restoration plan is determined by the primary OSU. Information identifying the primary restoration plan is sent from the primary OSU for effecting the restoration path to restore the system.
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Davis Gary B.
Georgiou George
Iraschko Rainer
Robinson Andrew N.
Urimindi Reddy
MCI Communications Corporation
Pascal Leslie
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