Cluster system, cluster member, and failure recovery method...

Details Cluster system, cluster member, and failure recovery method... Cluster system, cluster member, and failure recovery method...

2004-12-17

2008-10-28

Patel, Ajit (Department: 2616)

Multiplex communications

Fault recovery

Bypass an inoperative switch or inoperative element of a...

C370S216000

Reexamination Certificate

active

07443787

ABSTRACT:
Distribution processing control unit determines a main processing range and a sub-processing range whose charges are taken by a cluster member to which the unit belongs. Among packets multicast to a cluster system, a filter hands over packets matching with the main processing range and the sub-processing range to a session processing unit. The session processing unit conducts session processing (including processing of updating session information stored in a holding unit). Thereafter, when the packet matches with the main processing range, the session processing unit hands the packet over to a packet forwarding unit and when the packet matches with the sub-processing range, abandons the packet. When a cluster member in charge of main processing of a packet whose sub-processing is taken charge of by the cluster member in question develops a failure, a failure recovery unit changes the sub-processing range to the main processing range.

REFERENCES:
patent: 2002/0124013 (2002-09-01), Loy et al.
patent: 2005/0228630 (2005-10-01), Tseng et al.
patent: 2006/0098583 (2006-05-01), Baker et al.
patent: 2006/0212671 (2006-09-01), Todd
patent: PCT/US99/24156 (1999-10-01), None
patent: PCT/US99/24406 (1999-10-01), None

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