Fast port failover in a network switch

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

2006-10-10

2006-10-10

Le, Dieu-Minh (Department: 2114)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C370S351000

Reexamination Certificate

active

07120834

ABSTRACT:
A network switch, method and computer program product. The network switch comprises a plurality of ports each adapted to exchange frames of data with one or more network devices; a transfer circuit adapted to transfer the frames of the data between the ports; and wherein at least one of the ports comprises a loopback circuit adapted to send to the transfer circuit, when the one of the ports is not operational, each frame of the data received by the one of the ports from the transfer circuit, and a redirect circuit adapted to cause the transfer circuit to transfer, to one or more predetermined others of the ports, when the one of the ports is not operational, each frame of the data received by the transfer circuit from the one of the ports.

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patent: 2003/0058880 (2003-03-01), Sarkinen et al.
patent: WO 01/95564 (2001-12-01), None

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