Understanding System Message Logging - Cisco ME 3400 Software Configuration Manual

Ethernet access switch

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Configuring System Message Logging

This chapter describes how to configure system message logging on the Cisco ME 3400 Ethernet Access

For complete syntax and usage information for the commands used in this chapter, see the Cisco IOS

Configuration Fundamentals Command Reference, Release 12.2.

This chapter consists of these sections:

Logging messages to the console at a high rate can cause high CPU utilization and adversely affect how

the switch operates.

Understanding System Message Logging

By default, a switch sends the output from system messages and debug privileged EXEC commands to

a logging process. The logging process controls the distribution of logging messages to various

destinations, such as the logging buffer, terminal lines, or a UNIX syslog server, depending on your

configuration. The process also sends messages to the console.

The syslog format is compatible with 4.3 BSD UNIX.

When the logging process is disabled, messages are sent only to the console. The messages are sent as

they are generated, so message and debug output are interspersed with prompts or output from other

commands. Messages appear on the console after the process that generated them has finished.

You can set the severity level of the messages to control the type of messages displayed on the consoles

and each of the destinations. You can time-stamp log messages or set the syslog source address to

enhance real-time debugging and management. For information on possible messages, see the system

message guide for this release.

Understanding System Message Logging, page 28-1

Configuring System Message Logging, page 28-2

Displaying the Logging Configuration, page 28-13

C H A P T E R

Cisco ME 3400 Ethernet Access Switch Software Configuration Guide

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