Riverstone Networks WICT1-12 - Manual (Page 587)

Riverstone Networks RS Switch Router User Guide Release 8.0 28-1
28 RMON CONFIGURATION
You can employ Remote Network Monitoring (RMON) in your network to help monitor traffic at remote points
on the network. With RMON, data collection and processing is done with a remote probe, namely the RS. The RS
also includes RMON agent software that communicates with a network management station via SNMP. Because
information is only transmitted from the RS to the management station when required, SNMP traffic on the
network and the management station’s processing load are reduced.
The RS provides support for both RMON 1 and RMON 2 MIBs, as specified in RFCs 1757 and 2021, respectively.
While non-RMON SNMP products allow the monitoring and control of specific network devices, RMON 1
returns statistics on network segments at the MAC layer. RMON 2 collects statistics on network and application
layer traffic to show host-to-host connections and the applications and protocols being used. For example, the
RMON 2 network layer matrix MIB group can show protocol-specific traffic between pairs of systems which can
help to diagnose protocol problems. Note that RMON 2 is not a superset of RMON 1; on the RS, you can configure
both RMON 1 and RMON 2 statistics collection.
28.1 CONFIGURING AND ENABLING RMON
By default, RMON is disabled on the RS. To configure and enable RMON on the RS, follow these steps:
1. Turn on the Lite, Standard, or Professional RMON groups by entering the
rmon set
lite|standard|professional
command. You can also configure default control tables for
the Lite, Standard, or Professional RMON groups by including the
default-tables yes
parameter.
2. Enable RMON on specified ports with the
rmon set ports
command.
3. Optionally, you can configure control tables for the Lite, Standard, or Professional RMON
groups. For example, if you chose not to create default control tables for the Lite, Standard, or
Professional groups, you can configure control table entries for specific ports on the RS.
4. Use the
rmon enable
command to enable RMON on the RS.