IBM SC30-3681-08 Entering and Exiting the ELS Conguration Environment, Event Logging Concepts

Using ELS

Entering and Exiting the ELS Con®guration Environment

The ELS con®guration environment (available from the CONFIG process) is characterized by the ELS Config> prompt. Commands entered at this prompt create

the ELS default state that takes effect after you restart the router. These commands are described in greater detail later in this chapter.

Con®guration commands that have subsystem, group, or event as a parameter are executed in the following order:

vSubsystem

vGroup

vEvent

To set a basic ELS con®guration, enter thedisplay subsystem all standard command at the ELS Config> prompt. This command con®gures the ELS to display

messages from all subsystems with the STANDARD logging level (that is, all errors and unusual informational comments).

Note: The router does not have a default ELS con®guration. You must enter the ELS con®guration environment and set the default state.

To enter the ELS con®guration environment from OPCON:

1.Enter the talk 6 command. The console displays the CONFIG prompt (Config>). If the prompt does not appear when you ®rst enter CONFIG, pressReturn.

2.At the CONFIG prompt, enter the following command to access ELS:

Config> eve

The console displays the ELS con®guration prompt ELS( config>). Now, you can enter ELS con®guration commands.

To leave the ELS con®guration environment, enter theexit command.

Event Logging Concepts

This section describes how events are logged and how to interpret messages. Also described are the concepts of subsystem, event number, and logging level. A large part of ELS function is based on commands that accept the subsystem, event number, and logging level as parameters.

Causes of Events

Events occur continuously while the router is operating. They can be caused by any of the following reasons:

vSystem activity

vStatus changes

vService requests

vData transmission and reception

vData and internal errors

When an event occurs, ELS receives data from the system that identi®es the source and nature of the event. Then ELS generates a message that uses the data received as part of the message.

148MRS V3.2 Software User's Guide