Electrical computers and digital processing systems: multicomput – Computer network managing
Reexamination Certificate
2007-01-23
2007-01-23
Vu, Thong (Department: 2142)
Electrical computers and digital processing systems: multicomput
Computer network managing
C709S224000, C714S043000
Reexamination Certificate
active
10215636
ABSTRACT:
A monitoring system includes a monitoring component that compares a number of application-specific request packets sent with a number of response packets received pursuant to the sent request packets during a designated monitoring period to detect failure in a monitored component without using any pinging packets. The application-specific request and response packets contain data to perform tasks specific to an application that is not associated with operational status monitoring information and the request and response packets are not specifically ping packets. A method for monitoring includes counting a number of application-specific request packets sent with a number of response packets received during a monitoring period without any pinging. If one or more request packets are sent but no response packets are received during a designated monitoring period, the monitored component is identified as failed. If some, but not all, response packets are received, the monitored component is identified as operational. Alternatively, if no response packets are received after a first monitoring period, the monitored component is identified as potentially failed. If no response packets are received after the end of a second monitoring period, the monitored component is identified as failed.
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Cisco Technology Inc.
Marger & Johnson & McCollom, P.C.
Vu Thong
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