Chapter 23

RMON

Configuration

Guide

RMON Overview

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 SSR. The SSR also includes RMON agent software that communicates with a network management station via SNMP. Because information is only transmitted from the SSR to the management station when required, SNMP traffic on the network and the management station’s processing load are reduced.

The SSR 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 SSR, you can configure both RMON 1 and RMON 2 statistics collection.

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Cabletron Systems 9032578-05 manual Rmon Overview