System having a single IP address associated with communication protocol stacks in a cluster of processing systems

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6996631
SERIAL NO

09640409

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Abstract

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Methods, systems and computer program products provide communications with a plurality of application instances using a plurality of communication protocol stacks and a single Internet Protocol (IP) address. A stack is established as a routing stack associated with the single IP address. Other stacks which are associated with the single IP address are defined as candidate target stacks and an identification of candidate target stacks and the routing stack is distributed to the stacks. The routing stack is notified when an application associated with a candidate target stack listens to a port of the IP address to establish a current actual target stack. A request to establish a connection to the IP address and the port of the IP address is received and a routing table entry corresponding to the current actual target stack is created to provide a routing path from the routing stack to the current actual target stack. Communications to the port of the IP address received by the routing stack are routed based on the routing table.

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Patent Owner(s)

Patent OwnerAddress
INTERNATIONAL BUSINESS MACHINES CORPORATIONNEW ORCHARD ROAD ARMONK NY 10504

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Aiken, Jr John Andrew Raleigh, NC 8 471
Christensen, Alfred Bundgaard Raleigh, NC 6 460
Devine, Wesley McMillan Apex, NC 14 641
Herr, David Anthony Apex, NC 18 824
McClintock, Mark W Raleigh, NC 9 533

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