Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability
Reexamination Certificate
2007-09-18
2007-09-18
Iqbal, Nadeem (Department: 2114)
Error detection/correction and fault detection/recovery
Data processing system error or fault handling
Reliability and availability
C709S239000
Reexamination Certificate
active
10652265
ABSTRACT:
A redundancy architecture is described for network processing systems which allows the network to recover from failure of a network processing system without interruption in service. The redundancy architecture allows network processing systems that use state information to associate network traffic into discrete flows, to provide system level redundancy to prevent service outages, or loss of network traffic resulting from a failure in any single network processing system. The redundancy architecture includes an out-of-band network link between the redundant network processing systems. The out-of-band network link allows the network processing systems to exchange state and other data as necessary. By maintaining the state data not only for the network traffic being processed by the network processing system, but also the state data for the network traffic being processed by its mate network processing system, either network processing system can assume the network traffic of its redundant mate in the event of a failure.
REFERENCES:
patent: 6018524 (2000-01-01), Turner et al.
patent: 6052718 (2000-04-01), Gifford
patent: 6081511 (2000-06-01), Carr et al.
patent: 6363319 (2002-03-01), Hsu
patent: 6392990 (2002-05-01), Tosey et al.
patent: 6778538 (2004-08-01), Landaveri et al.
patent: 6901047 (2005-05-01), Griffith et al.
patent: 6904286 (2005-06-01), Dantu
patent: 6940810 (2005-09-01), Roa-Diaz
patent: 6957071 (2005-10-01), Holur et al.
patent: 7006433 (2006-02-01), Dantu et al.
patent: 7031266 (2006-04-01), Patel et al.
patent: 7058033 (2006-06-01), Dantu et al.
patent: 7068624 (2006-06-01), Dantu et al.
patent: 7092354 (2006-08-01), Jensen
patent: 2003/0145108 (2003-07-01), Joseph et al.
patent: 2003/0147408 (2003-08-01), Datta et al.
patent: 2005/0027862 (2005-02-01), Nguyen et al.
International Search Report and Written Opinion of the international Searching Authority mailed Sep. 12, 2006 for PCT Application No PCT/US04/26774, 6 pages.
Dantu Ramanamurthy
Deerman James Robert
Rana Aswinkumar Vishanji
Yue Keung Chun
AudioCodes Texas, Inc.
Haynes and Boone LLP
Iqbal Nadeem
LandOfFree
Redundancy scheme for network processing systems does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Redundancy scheme for network processing systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Redundancy scheme for network processing systems will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3731996