Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular node for directing data and applying cryptography
Reexamination Certificate
2000-02-29
2010-10-12
Brown, Christopher J (Department: 2439)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Particular node for directing data and applying cryptography
Reexamination Certificate
active
07814309
ABSTRACT:
A method is disclosed whereby separate but interrelated data is checkpointed and reconstructed within a router. In one embodiment, each connection is checkpointed with a unique connection identifier, and critical data is stored by a firewall application in a checkpoint server provided within a router. When an application module within the firewall crashes, the firewall and associated modules may recover and restore the data from the checkpoint server by re-assembling the data according the unique connection identifier, thus recovering the connections through the router without interruption.
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Brown Christopher J
Cesari and McKenna LLP
Cisco Technology Inc.
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