25-2
Catalyst 2960 Switch Software Configuration Guide
OL-8603-04
Chapter 25 Configuring System Message Logging
Configuring System Message Logging
You can access logged system messages by using the switch command-line interface (CLI) or by saving
them to a properly configured syslog server. The switch software saves syslog messages in an internal
buffer.
You can remotely monitor system messages by viewing the logs on a syslog server or by accessing the
switch through Telnet or through the console port.
Configuring System Message Logging
These sections contain this configuration information:
• System Log Message Format, page 25-2
• Default System Message Logging Configuration, page 25-3
• Disabling Message Logging, page 25-4 (optional)
• Setting the Message Display Destination Device, page 25-5 (optional)
• Synchronizing Log Messages, page 25-6 (optional)
• Enabling and Disabling Time Stamps on Log Messages, page 25-7 (optional)
• Enabling and Disabling Sequence Numbers in Log Messages, page 25-8 (optional)
• Defining the Message Severity Level, page 25-8 (optional)
• Limiting Syslog Messages Sent to the History Table and to SNMP, page 25-10 (optional)
• Enabling the Configuration-Change Logger, page 25-10 (optional)
• Configuring UNIX Syslog Servers, page 25-12 (optional)
System Log Message Format
System log messages can contain up to 80 characters and a percent sign (%), which follows the optional
sequence number or time-stamp information, if configured. Messages appear in this format:
seq no:timestamp: %facility-severity-MNEMONIC:description
The part of the message preceding the percent sign depends on the setting of the service
sequence-numbers, service timestamps log datetime, service timestamps log datetime [localtime]
[msec] [show-timezone], or service timestamps log uptime global configuration command.
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