Nortel 8100 用户指南

314723-D Rev 01

 

Read-write: members can view configuration and performance information, and 
also change the configuration.

By defining a community, an agent limits access to its MIB to a selected set of 
management stations. By using more than one community, the agent can provide 
different levels of MIB access to different management stations. 

For more information about configuring SNMP settings (including creating 
community strings and setting traps) using the Device Manager, see Installing and 
Using Device Manager and Configuring and Managing Security. For more 
information about configuring SNMP settings using the CLI, see Getting Started 
and Configuring and Managing Security.

Remote monitoring (RMON) is a management information base (MIB) or a group 
of “management objects” that you use to “get” or “set” values using Simple 
Network Management Protocol (SNMP). Using the CLI or Device Manager, you 
enable RMON globally for devices on the switch. When RMON is enabled 
globally, you then enable monitoring for individual devices on a port-by-port 
basis. 

RMON has four major functions:

•

Setting alarms for user-defined events

•

Gathering real-time and historical Ethernet statistics

•

Logging events 

•

Sending traps for events

Within Device Manager, you can set RMON alarms that relate to specific events 
or variables simply by selecting these variables from a drop-down menu. You 
specify events associated with alarms to be set to either trap or log-and-trap. In 
turn, these alarms, when tripped, are trapped or logged. 

All RMON information is viewable within both Device Manager and the CLI. 
Alternatively you can use any management application that supports SNMP traps 
(such as Optivity NMS

*

 and HP OpenView*) to view RMON trap information.