Fast port failover in a network switch

Details Fast port failover in a network switch Fast port failover in a network switch

2007-12-11

2007-12-11

Le, Dieu-Minh (Department: 2114)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C370S224000

Reexamination Certificate

active

11525326

ABSTRACT:
A network switch comprises a plurality of ports that exchange frames of data with one or more network devices. A transfer circuit transfers the frames of the data between the ports. At least one of the ports includes a loopback circuit that sends to the transfer circuit each frame of the data received by the at least one of the ports from the transfer circuit when the one of the ports is not operational. A redirect circuit causes the transfer circuit to transfer each frame of the data received by the transfer circuit from the one of the ports to one or more predetermined others of the ports when the one of the ports is not operational.

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