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Performance and Fault Management by James M. Thompson, Kent J. Phelps, Robert L. Pavone, Christopher E. Elliott, Paul L. Della Maggiora

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Environmental Characteristics

Environmental characteristics in Cisco devices involve data points such as temperature, voltages, and fan statuses. There is no compelling reason to proactively track any of this kind of data to determine the performance of your Cisco device, so we will focus only on fault management for these environmental characteristics. If you do want to get these data points, you can retrieve them on demand with SNMP queries or show commands. The router can also notify the network management station via SNMP traps of thresholds being exceeded.

Most of the environmental factors that can be monitored reside in the core Cisco devices, such as the 7xxx series routers or the 5xxx series Catalyst switches. Most of the low-end routers ...

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