Method and system for protecting frame relay traffic over SONET rings
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United States of America Patent
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Apr 3, 2007
Issued Date -
N/A
app pub date -
Oct 8, 2004
filing date -
Nov 30, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A frame relay (FR) protection method generates an OAM frame to other nodes upon detecting a defect on a SONET ring. The protection frame comprises a type of failure and a location of failure. A node that detected the defect transmits the protection frame to other nodes about the location of the failure and the type failure. Protection tables are provided for switching a working fiber link to a protection fiber link. A protection switching provides a method re-establish FR traffic in spite of a detected failure on a SONET ring.
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