Multiplex communications – Fault recovery – Bypass an inoperative switch or inoperative element of a...
Reexamination Certificate
2007-02-28
2009-10-20
Lee, Andrew (Department: 2416)
Multiplex communications
Fault recovery
Bypass an inoperative switch or inoperative element of a...
C370S252000
Reexamination Certificate
active
07606143
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.
REFERENCES:
patent: 6477141 (2002-11-01), Izawa et al.
patent: 6810011 (2004-10-01), Betts
patent: 7433362 (2008-10-01), Mallya et al.
patent: 2005/0195750 (2005-09-01), Le et al.
patent: 2006/0002292 (2006-01-01), Chang et al.
patent: 2006/0193257 (2006-08-01), Behzadi
patent: 2007/0174691 (2007-07-01), D'Souza et al.
patent: 2007/0253329 (2007-11-01), Rooholamini et al.
patent: 2007/0286069 (2007-12-01), Xu
patent: 2008/0219156 (2008-09-01), Caviglia et al.
patent: 2008/0304407 (2008-12-01), Umansky et al.
patent: 2008/0316920 (2008-12-01), Chun et al.
Bugenhagen Michael K.
Cooley Jim E.
Embarq Corporation
Lee Andrew
Sonnenschein Nath & Rosenthal LLP
LandOfFree
System and method for advanced fail-over for packet label... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method for advanced fail-over for packet label..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for advanced fail-over for packet label... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4096186