Extreme Networks 200 Series - Manual (Page 183)

RMON
Summit 200 Series Switch Installation and User Guide 181
Effective use of the Events group saves you time. Rather than having to watch real-time graphs for
important occurrences, you can depend on the Event group for notification. Through the SNMP traps,
events can trigger other actions, which provides a mechanism for an automated response to certain
occurrences.
Configuring RMON
RMON requires one probe per LAN segment, and standalone RMON probes traditionally have been
expensive. Therefore, Extreme’s approach has been to build an inexpensive RMON probe into the agent
of each system. This allows RMON to be widely deployed around the network without costing more
than traditional network management. The switch accurately maintains RMON statistics at the
maximum line rate of all of its ports.
For example, statistics can be related to individual ports. Also, because a probe must be able to see all
traffic, a stand-alone probe must be attached to a nonsecure port. Implementing RMON in the switch
means that all ports can have security features enabled.
To enable or disable the collection of RMON statistics on the switch, use the following command:
[enable | disable] rmon
By default, RMON is disabled. However, even in the disabled state, the switch response to RMON
queries and sets for alarms and events. By enabling RMON, the switch begins the processes necessary
for collecting switch statistics.
Event Actions
The actions that you can define for each alarm are shown in Table 51.
To be notified of events using SNMP traps, you must configure one or more trap receivers, as described
in Chapter 5, “Managing the Switch”.
Table 51: Event Actions
Action High Threshold
No action
Notify only Send trap to all trap receivers.
Notify and log Send trap; place entry in RMON log.