Apparatus and method for detecting network failure location

Details Apparatus and method for detecting network failure location Apparatus and method for detecting network failure location

2006-04-28

2009-10-20

Le, Dieu-Minh (Department: 2114)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S004110

Reexamination Certificate

active

07607049

ABSTRACT:
A L2 loop failure location generated in any one of a plurality of search target apparatuses disposed in network is detected in a short time. A network failure location detecting apparatus executes the steps of broadcasting packets with a plurality of different source MAC addresses; acquiring statistical information that is information of a learning port of the plurality of different source MAC addresses learned by each of the plurality of search target apparatuses; finding whether the number of the learning ports of the plurality of different source MAC addresses is one or two from the acquired statistical information; and determining that the L2 loop failure location is the search target apparatus including two learning ports of the plurality of different source MAC addresses.

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U.S. Appl. No. 11/229,689, filed Sep. 20, 2005, Yasuie.

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