Specifications

Maintaining the Wireless Network 6-11

Monitoring the Access Point Using RMON

The Access Point supports four of the nine Remote Network Monitoring MIB (RMON)

groups:

• Statistics - Contains statistics measured by the probe for the wired LAN and the

wireless LAN interfaces.

• History - Records periodic statistical samples from a network and stores them for later

retrieval.

• Alarm - Periodically takes statistical samples from variables in the probe and

compares them to previously configured thresholds. If the monitored variable crosses

a threshold, an event is generated.

• Event - Controls the generation and notification of events from this device.

The settings for these groups can only be accessed with a Network Management System.

The console port and AP Manager cannot change or view the RMON group settings.

When the Access Point is initialized, two statistics groups are generated. One group is for

the wired interface and one is for the wireless interface. Also, two History groups are

generated for each interface. One group has a short term polling period of 30 seconds and

one has a long term polling period of 30 minutes.

The Access Point has the following limits for the RMON MIB because of memory

limitations:

• A maximum of six Statistics groups.

• A maximum of four History groups, with a maximum of 200 “buckets”, also called

samples, for all groups. You can reconfigure each group. For example, you could

assign 80 buckets each to the long and short term History groups assigned to the wired

interface, and 20 buckets each to the long and short term History groups assigned to

the wireless interface. This example does not exceed the maximum of 200 buckets.

• A maximum of ten Alarm groups.

• A maximum of ten Event groups.