Monitoring Cisco Wireless LAN Controller

The eG Enterprise monitors the utilization of the CPU and memory resources of both wireless LAN controller and the network access points, so that any abnormal CPU and memory usage can be instantly detected using this monitored model. This way, administrators are proactively alerted to issues so that they can initiate remedial actions well before user complains.

Using the Cisco Enterprise SNMP MIB, eG agents monitor various metrics of interest relating to Cisco Wireless LAN Controller. Figure 1 depicts the layer model of Cisco Wireless LAN Controller.

Figure 1 : Layer model of the Cisco Wireless LAN Controller

Every layer in the monitoring model is mapped to variety of tests which connect to the SNMP MIB of the target controller and report critical statistics pertaining to its performance. Using the measures reported by the tests, administrators can find quick and accurate answers for the following queries:

  • Is the wireless LAN controller available over the network?

  • Are the access points in connection with the wireless LAN controller?

  • Was any CPU contention noticed on the controller and access points? What caused this contention – resource-hungry user processes?

  • Is the controller consuming memory excessively?