Root cause correlation in connectionless networks

Details Root cause correlation in connectionless networks Root cause correlation in connectionless networks

2008-05-13

2008-05-13

Chung, Phung M. (Department: 2117)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Transmission facility testing

C714S776000, C714S043000

Reexamination Certificate

active

10527239

ABSTRACT:
A method for correlating routing errors to link failures in a network, the method including detecting a link failure between a first and a second router NODES in a network, associating a first node address indicated in a first routing table of the first router with a first partition of network, where a next hop of a packet destined for the first node address is the second router, associating a second node address indicated in a second routing table of the second router with a second partition of the network, where a next hop of a packet destined for the second node address is the first router, and correlating an error notification resulting from the failed delivery of a packet with the link failure where a source address of the packet corresponds to the first node address and a destination address of the packet corresponds to the second node address.

REFERENCES:
patent: 6353902 (2002-03-01), Kulatunge et al.
patent: 6377677 (2002-04-01), Ackerley et al.
patent: 6683865 (2004-01-01), Garcia-Luna-Aceves et al.
patent: 6813241 (2004-11-01), Wang et al.
patent: 2002/0103631 (2002-08-01), Feldman et al.
patent: WO 01/19038 (2001-03-01), None

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