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A failover process for a computer system, comprising:routing traffic from a routing device to a first server;

storing in the routing device data representing a fingerprint of the first server;

receiving periodically at the routing device a status message from the first server;

detecting at the routing device an invalid status message from the first server by absence of the fingerprint in a status message from the first server within a predetermined time period after last receiving a valid status message at the routing device; and

routing the traffic from the routing device to a second server in response to detecting the invalid status message from the first server.

#1189Application layer message-based server failover management by a network element

Applies to Claims 1

Submitted by: Susan MurrayLast updated: almost 2 years ago

Patent/Application # 7698416

Description

Server failure management method involves selecting another server to transmit response generated based on session state to client, upon detection of inability of server to service request

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