Method and apparatus for lossless switchover in a redundant...

Details Method and apparatus for lossless switchover in a redundant... Method and apparatus for lossless switchover in a redundant...

2007-04-03

2007-04-03

Vu, Huy D. (Department: 2616)

Multiplex communications

Fault recovery

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

C370S389000, C370S394000, C370S395600

Reexamination Certificate

active

10020481

ABSTRACT:
Method and apparatus for lossless switchover in a redundant switch fabric improves the reliability and predictability of a cell reaching its destination without the cell being lost during switch-over through redundant switch fabrics. Ingress and egress buffers are disposed in input and output line cards to maintain the history of transmitted cells. When switch-over occurs, the cells transmission history is used to recover lost cells transparently and with minimal latency.

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