Cabletron Systems STS16-20R User Manual

Switch Overview

SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide

RMON is an industry-standard method for providing network statistics monitoring 
using SNMP. It also collects fault, performance, and configuration statistics. It can 
monitor continuously, even when communication with the management station is 
not possible or efficient. RMON can then notify the management station when an 
exceptional condition occurs. 

In typical SNMP management, the SNMP client has to continuously poll the 
SmartStack STS16-20D/STS16-20R for fault, performance, and configuration 
information, waiting for the value to change. This causes increased traffic through 
the network. With RMON, you can have the switch monitor a particular statistic 
internally, and when the statistics reaches a threshold, the SmartStack STS16-20D/
STS16-20R will send a trap to the client. This monitoring method reduces traffic 
between the SNMP client and the SmartStack STS16-20D/STS16-20R.

The switch implements a mini RMON probe for the physical ports by supporting 
some of the RMON groups RFC 1757 and RFC 1513.

For full RMON an external probe must be used.

For information on supported groups, see the following table:

1. Statistics:

Supported:
— The Token-Ring MAC-Layer Statistics Group.

The Token-Ring Promiscuous Statistics Group.

:

— The Token-Ring MAC-Layer History Group.
— The Token-Ring Promiscuous History Group.

— Supported for all RMON variables.
— Not supported for other MIB variables.

.