Highly available TCP systems with fail over connections

Details Highly available TCP systems with fail over connections Highly available TCP systems with fail over connections

2005-03-22

2005-03-22

Le, Dieu-Minh (Department: 2114)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C709S227000

Reexamination Certificate

active

06871296

ABSTRACT:
The present invention provides a method, system and apparatus by which TCP connections may be failed-over from one system to another within a highly available network service, and appear transparent to the remote client. The connection state and ownership information of a system is broadcast within the network, so that if a first system crashes while running an application, a predetermined take-over policy causes a peer system to assume connection without loss of data such that a permanent connection has been established from the client's point of view. After the failed system has been restored to a normal state, new connections are established by the first system.

REFERENCES:
patent: 5435003 (1995-07-01), Chng et al.
patent: 5922077 (1999-07-01), Espy et al.
patent: 6006264 (1999-12-01), Colby et al.
patent: 6108701 (2000-08-01), Davies et al.
patent: 6119170 (2000-09-01), Schoffelman et al.
patent: 6292905 (2001-09-01), Wallach et al.
patent: 6601101 (2003-07-01), Lee et al.

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