Protection Switching Method and Node
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United States of America Patent
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Issued Date -
Aug 13, 2020
app pub date -
Apr 29, 2020
filing date -
Jan 19, 2016
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Abstract
A protection switching method, including sending, by a first end node, a first protection switching request message to an intermediate node in response to a fault occurring on a working path between the first end node and a second end node, wherein a protection path of the working path comprises the first end node, the second end node, and at least one intermediate node, receiving, by the first end node, a second protection switching request message from the intermediate node, and switching service data to the protection path for transmission in response to receiving the second protection switching request message, where one overhead frame of each of the first and second protection switching request messages has at least two overhead information groups, and each of the at least two overhead information groups comprises a request type field, a request signal identifier field, and a bridge flag field.
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