Using ELS

You can also use remote logging instead of capturing ELS output on a UNIX Host. For more information about remote logging, see ªUsing and Con®guring ELS Remote Loggingº on page 155.

Con®guring ELS So Event Messages Are Sent In SNMP Traps

ELS can be con®gured so that event messages are sent to a network management workstation in an SNMP enterprise-speci®c trap. These traps are useful for reporting status and diagnostic results, and are often used for remote monitoring of a 2210.

When ELS is con®gured appropriately, an SNMP trap will be generated each time the selected event occurs. For more information about SNMP, see Protocol Con®guration and Monitoring Reference.

To tell ELS that a speci®c 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-speci®c 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-speci®c 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 speci®c 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 ®nding out whether the polls are successful.

Chapter 12. Using the Event Logging System (ELS) 153

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IBM SC30-3681-08 Conguring ELS So Event Messages Are Sent In Snmp Traps, Using ELS to Troubleshoot a Problem, ELS Example