Cabletron Systems SSIM-R8-02 Specifikace stáhnout pdf (Strana 353)

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Enterasys Xpedition User Reference Manual 333

Chapter 26

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 XP. The XP also includes RMON agent software that

communicates with a network management station via SNMP. Because information is

only transmitted from the XP to the management station when required, SNMP traffic on

the network and the management station’s processing load are reduced.

The XP 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 XP, you can configure both RMON 1 and RMON 2 statistics

collection.

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