Fault tolerant recoverable TCP/IP connection router
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Nov 14, 2000
Grant Date -
N/A
app pub date -
Sep 15, 1997
filing date -
Sep 15, 1997
priority date (Note) -
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status (Latency Note)
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Abstract
A fault tolerant recoverable connection device and methods are disclosed that include a primary router in an active state to provide a connection between clients and servers in a network, and a backup router in a standby state. The states of the primary and backup routers are switched when the primary router fails, the backup router has a better reach-ability state than the primary router, or by an operator command. Each router has a synchronization manager which maintains synchronized tables between the active and standby routers; a monitoring manager which monitors and switch the state of the routers; a reach-ability manager which monitors, updates, and compares the reach-ability set and state of the routers; and a keep alive manager which monitors the routers to provide a status notification to the monitoring manager.
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