Systems and methods for path protection switching due to client protection switching
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United States of America Patent
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Dec 26, 2017
Issued Date -
N/A
app pub date -
Jul 29, 2016
filing date -
Jun 17, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
A method to avoid sympathetic switches in path switching protection due to client protection switching includes monitoring a drop side Tandem Connection Monitoring (TCM) entity and a line side TCM entity for a connection, wherein the drop side TCM is provisioned between a drop port of the node and a second drop port of a corresponding node, and wherein the line side TCM entity is provisioned between a plurality of line ports of the node and a second plurality of line ports of the corresponding node; responsive to detecting defects in both the drop side TCM entity and the line side TCM entity on a working line, implementing path protection switching of the working line; and, responsive to detecting defects only in the drop side TCM entity, implementing path protection switching of the working line responsive to persistence of the defects.
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