Stateful failover protection among routers that provide load...

Details Stateful failover protection among routers that provide load... Stateful failover protection among routers that provide load...

2006-11-21

2006-11-21

Le, Dieu-Minh (Department: 2114)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C718S105000

Reexamination Certificate

active

07139926

ABSTRACT:
Failure protection is provided between two routers that are actively implementing load sharing using network address translation. Failure protection is achieved by generating state information at the two routers and then exchanging the state information between the two routers so that each router has a combined set of state information that can be used in the event of a failure of the other router.

REFERENCES:
patent: 6049524 (2000-04-01), Fukushima et al.
patent: 6058431 (2000-05-01), Srisuresh et al.
patent: 6397260 (2002-05-01), Wils et al.
patent: 6487605 (2002-11-01), Leung
patent: 6578066 (2003-06-01), Logan et al.
patent: 6760775 (2004-07-01), Anerousis et al.
patent: 2003/0067924 (2003-04-01), Choe et al.
Cisco Systems, Failover Configuration for LocalDirector, 2000, 23 pages, San Jose.
P. Srisuresh and D. Gan, Load Sharing Using IP Network Address Translation (LSNAT), Aug. 1998, 18 pages, IETF RFC: 2391.

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