07076555 is referenced by 144 patents and cites 20 patents.

A system and a method for transparent takeover (or failover) of a remote client TCP connection from a first server in a cluster of interconnected servers to a second server provides the storing of shared state information relative to the connection on each involved server and using of the shared state information to reestablish the connection on the second server. A message using a sequence number to refer to a previously transmitted data element (such as a byte) is sent by the second server and a received client acknowledgement (ACK) of that sequence number, or a higher one, is used to synchronize the server's data packet transmission sequence number with the ACK-transmitted sequence number. If synchronization is successful, then the connection is restarted on the second server from the point of termination/failure on the first server.

Title
System and method for transparent takeover of TCP connections between servers
Application Number
10/55865
Publication Number
7076555 (B1)
Application Date
January 23, 2002
Publication Date
July 11, 2006
Inventor
Jamshid Mahdavi
San Jose
CA, US
Howard Rollin Davis
Salem
UT, US
Hilarie Orman
Woodland Hills
UT, US
Agent
Schwegman Lundberg Woessner & Kluth P A
Assignee
Novell
UT, US
IPC
G06F 11/00
G06F 15/173
G06F 15/16
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