Router software upgrade employing redundant processors

Details Router software upgrade employing redundant processors Router software upgrade employing redundant processors

2004-04-16

2009-10-27

Boutah, Alina N. (Department: 2443)

Electrical computers and digital processing systems: multicomput

Computer-to-computer data routing

Routing data updating

C370S216000, C370S219000, C370S220000, C370S221000, C370S225000, C714S011000, C714S013000, C700S082000

Reexamination Certificate

active

07610405

ABSTRACT:
Systems and methods for replacing software controlling active routers while minimizing impact on network operation are provided by virtue of one embodiment of the present invention. The software replacement process takes advantage of packet processor redundancy. An active packet switching device to be reprogrammed is de-activated and a redundant packet switching device takes over. The no longer active packet switching device is reprogrammed before being reactivated.

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