High capacity router having redundant components

Details High capacity router having redundant components High capacity router having redundant components

2005-03-21

2010-10-12

Rao, Seema S (Department: 2462)

Multiplex communications

Fault recovery

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

C370S392000, C710S003000

Reexamination Certificate

active

07813264

ABSTRACT:
A router includes multiple routing engines. If the active routing engine fails, a backup one of the routing engines detects the failure and assumes the role of active routing engine. A redundancy controller circuit, connected to the multiple routing engines, facilitates the selection and switching of the routing engines. Portions of the packet forwarding engine, in addition to the routing engine, may be redundantly implemented. The active routing engine controls the selection of the redundant portion of the packet forwarding engine.

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