System and method for advanced fail-over for packet label swapping
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United States of America Patent
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Oct 20, 2009
Grant Date -
Aug 28, 2008
app pub date -
Feb 28, 2007
filing date -
Feb 28, 2007
priority date (Note) -
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Abstract
The present method for advanced fail-over packet label swapping for a packet network having a working path and a protection path, each of the working path and protection path interconnected by a near-end switch and a far-end switch includes: provisioning the working path, protection path, near-end switch, and far-end switch with a failure counter delay; monitoring heartbeat packets on one of the near-end switch and the far-end switch during a monitoring period to determine a number of packets that were not received by at least one of the switches during the monitoring period; determining if the determined number of packets exceeds a predetermined lost packet value for the failure counter delay; and responsive to the determined number of packets exceeding the predetermined lost packet value, delaying the monitoring for a period of time equal to the failure counter delay.
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