Method and apparatus for efficient TCP connection handoff

Details Method and apparatus for efficient TCP connection handoff Method and apparatus for efficient TCP connection handoff

2011-01-25

2011-01-25

Ismail, Shawki S (Department: 2455)

Electrical computers and digital processing systems: multicomput

Computer-to-computer session/connection establishing

C709S228000

Reexamination Certificate

active

07877490

ABSTRACT:
A method for efficient communications with a cluster-based architecture preserves various aspects of integrity throughout one or more connections with a client, even in the midst of connection migration between nodes in the cluster. According to one aspect, the invention provides a mechanism for preventing the loss of packets arising from a TCP connection migration within the cluster. According to another aspect, the invention provides a mechanism for uniquely identifying conflicting TCP connections migrated to a common node. According to a still further aspect, the invention provides a distributed TCP timestamp mechanism so that the sender and receiver will have a consistent view of the timestamp even when each node has different local clock values and regardless of how many times the socket has been migrated.

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