High-availability packet forwarding apparatus and method

Details High-availability packet forwarding apparatus and method High-availability packet forwarding apparatus and method

2003-06-02

2008-03-11

Harper, Kevin C. (Department: 2616)

Multiplex communications

Fault recovery

Bypass an inoperative switch or inoperative element of a...

C370S244000, C714S001000

Reexamination Certificate

active

07342874

ABSTRACT:
Failover protection is provided on the same facilities for a network connection passing through a high-availability router having shared resources managed by two control processors that respectively maintain a forwarding information bases (FIB). The two processors run asynchronously in a master/standby relationship. Integrity of processes running on the control processors is monitored and a forwarding engine forwards packets according to a FIB maintained by an in-service one of the control processors. If one of the control processors fails, the other control processor uses the same bandwidth on the same facility to continue forwarding packets for a network connection. Identifiers in each packet associated with the network connection are used to indicate the reserved bandwidth associated with the network connection.

REFERENCES:
patent: H1814 (1999-11-01), Browning et al.
patent: 6088328 (2000-07-01), McKnight
patent: 2002/0089980 (2002-07-01), Rombeaut et al.
patent: 2002/0103921 (2002-08-01), Nair et al.
patent: 2006/0020694 (2006-01-01), Nag et al.
patent: 0 747 833 (1996-12-01), None
The Avici SSR™ Stackable Switch Router, online product brochure downloaded on Dec. 19, 2001 from the web site of Avici Systems Inc., http://www.avici.com.

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