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You can also use remote logging instead of capturing ELS output on a UNIX Host.
For more information about remote logging, see “Using and Configuring ELS
Remote Logging” on page 155.
Configuring ELS So Event Messages Are Sent In SNMP Traps
ELS can be configured so that event messages are sent to a network management
workstation in an SNMP enterprise-specific trap. These traps are useful for reporting
status and diagnostic results, and are often used for remote monitoring of a 2210.
When ELS is configured appropriately, an SNMP trap will be generated each time
the selected event occurs. For more information about SNMP, see
Protocol
Configuration and Monitoring Reference
.
To tell ELS that a specific event should be activated to be sent as an SNMP trap, at
the ELS config> prompt or at the ELS> prompt, using IP as an example, type:
trap event ip.007
Note: If you are at the ELS config> prompt, you will need to reboot.
To enable the ELS enterprise-specific trap, follow these steps:
1. At the SNMP config> prompt, using public as an example, type:
SNMP config> add address public <network manager IP address>
SNMP config> enable trap enterprise public
SNMP config> set community access read_trap public
Note: You need to reboot to activate these changes.
2. Enable your network management station to receive and properly display the
enterprise-specific traps.
Follow these steps to trap groups, subsystems, and events.
Using ELS to Troubleshoot a Problem
If you are trying to troubleshoot a particular problem, display the messages related
to the problem. For example, if experiencing a problem with bridging, turn on the
bridging messages:
display subsystem srt all
display subsystem br all
Initially, because of the rapid pace of messages scrolling across the screen, you
may want to record the numbers you see and look them up in the
Event Logging
System Messages Guide
manual. Once you become familiar with different types of
messages being displayed for a particular protocol, you can turn on and turn off
only those messages that contain the information that you require to troubleshoot a
problem. The following sections list specific ELS examples. Keep in mind that
different problems may require different steps.
ELS Example 1
You are interested in looking at the frequency of polling on a Token-Ring interface,
and finding out whether the polls are successful.
Using ELS
Chapter 12. Using the Event Logging System (ELS) 153