Fault-tolerant mesh network comprising interlocking ring networks
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United States of America Patent
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app pub date -
Oct 3, 2001
filing date -
Jul 20, 2001
priority date (Note) -
Abandoned
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Abstract
A SONET/SDH mesh network architecture is disclosed that restores quickly after the failure of a network element and can be administered and maintained, for most purposes, as a collection of distinct ring networks. The SONET/SDH mesh network is fabricated from a plurality of 'interlocking' ring networks. By fabricating a mesh network as a plurality of interlocking ring networks, a protected service can be restored in the event of a failure in a distributed, timely, and efficient manner. The illustrative embodiment comprises: a first SONET/SDH ring; a second SONET/SDH ring; and a node that monitors the status of an automatic protection switching channel in the first SONET/SDH ring and that affects the routing of traffic in the second SONET/SDH ring based on the status of an automatic protection switching channel in the first SONET/SDH ring.
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