Multiplex communications – Fault recovery – Bypass an inoperative switch or inoperative element of a...
Reexamination Certificate
2006-06-06
2006-06-06
Chin, Wellington (Department: 2664)
Multiplex communications
Fault recovery
Bypass an inoperative switch or inoperative element of a...
C370S236000, C370S241100, C709S239000, C714S002000
Reexamination Certificate
active
07058010
ABSTRACT:
The present invention is a methodology for controlled switchover of unicast and multicast data flows in packet based switching system. In some cases it is advantageous to purposefully support switchover of flows from one path to the other without causing loss of data. This is termed a “controlled” or “hitless” switchover. In accordance with the present invention switchover methodology, given that an ingress arbiter device is transmitting to both cores simultaneously, it is required that the flows to both switching cores be synchronized at an aggregator level and that an egress arbiter be given time to cease receiving packets from one Core then switch over to the other Core, and continue receiving packets.
REFERENCES:
patent: 4710916 (1987-12-01), Amstutz et al.
patent: 5130984 (1992-07-01), Cisneros
patent: 5802050 (1998-09-01), Petersen et al.
patent: 6332198 (2001-12-01), Simons et al.
patent: 6590870 (2003-07-01), Mellberg
patent: 6741553 (2004-05-01), Grenier
patent: 6763024 (2004-07-01), Law et al.
patent: 6795393 (2004-09-01), Mazzurco et al.
Chidambaran P K
Hoch Thomas A
Jones John Patrick
Long Andrew A
Palnati Prasasth R
Chin Wellington
Hodulik M. J.
Lucent Technologies - Inc.
Shew John
LandOfFree
Controlled switchover of unicast and multicast data flows in... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Controlled switchover of unicast and multicast data flows in..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Controlled switchover of unicast and multicast data flows in... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3655246