Load balancing using IPv6 mobility features

Details Load balancing using IPv6 mobility features Load balancing using IPv6 mobility features

2009-12-10

2011-12-13

Won, Michael (Department: 2456)

Electrical computers and digital processing systems: multicomput

Computer-to-computer data routing

C709S203000, C370S237000, C370S351000, C370S392000, C370S395320, C455S436000

Reexamination Certificate

active

08078755

ABSTRACT:
Techniques are provided that allow client and server nodes to communicate without the continuing intervention of a load-balancing node that selected the server node. A load-balancing node intercepts a TCP SYN packet addressed to a virtual IP address. The load-balancing node selects a server node from among multiple server nodes, and sends the packet toward the server node. The server node sends an IPv6 packet toward the client node. The packet contains a Binding Update option that specifies the virtual IP address as a Home Address. This information causes the client node to replace destination addresses in outgoing IP packets so that packets that the client node would have sent toward the virtual IP address are sent toward the selected server node's IP address instead. Consequently, the IP packets are routed toward the selected server node instead of the load-balancing node.

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