Optical communication system having ring-based restoration using shared protect links
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United States of America Patent
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Apr 14, 2009
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N/A
app pub date -
Sep 8, 2005
filing date -
Sep 8, 2005
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Abstract
In an optical communication system, optical communications are transferred over a first ring and a second ring. A fault is detected on the first ring or the second ring. If the fault is detected on the first ring, a shared optical protect link is used for ring-based restoration of the first ring if the link is available, and restoration overhead for the first ring is transferred in an active location of the shared optical protect link. If the fault is detected on the second ring, the shared optical protect link is used for ring-based restoration of the second ring if the link is available, and restoration overhead for the second ring is transferred in the active location of the shared optical protect link.
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