Chapter 17: Rmon Configuration Guide; Rmon Overview - Cabletron Systems IA1100 User's Reference Manual

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 Internet Appliance (IA). The IA also includes
RMON agent software that communicates with a network management station via SNMP.
Because information is only transmitted from the IA to the management station when
required, SNMP traffic on the network and the management station's processing load are
reduced.
The IA 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 IA, you can configure both RMON 1 and RMON 2 statistics
collection.
Internet Appliance User Reference Manual
Chapter 17
Configuration
RMON
Guide
247