Efficient management of ring networks

Details Efficient management of ring networks Efficient management of ring networks

2011-08-23

2011-08-23

Yao, Kwang B (Department: 2473)

Multiplex communications

Fault recovery

Bypass an inoperative station

C370S242000

Reexamination Certificate

active

08004966

ABSTRACT:
In general, techniques are described for efficient management of ring networks with a system of two network devices. The first network device of the ring network is designated as an adjacent selective forwarding (ASF) device, and the second network device is designated as a master device. The master device monitors the ring network to determine whether a fault has occurred in the ring network and transmits via a secondary port of the master device a network status message to the ASF device based on the determination of whether the fault has occurred. The ASF device determines a status of the ring network based on the network status message and selectively forwards data traffic to the master network device based on the determination of the status. As a result, the master device more efficiently utilizes network resources by not consuming processor or memory resources to prevent traffic loops.

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“Ethernet Automatic Protection Switching (EAPS)” White Paper (1293—01), Extreme Networks, Inc., Nov. 2006, 5 pages.

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