System Log Message Format - Cisco Catalyst 2960 Software Configuration Manual

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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 on a standalone switch, and in the case of a switch stack, on the stack master. If a standalone

switch or the stack master fails, the log is lost unless you had saved it to flash memory.

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. In a switch stack, all stack member consoles provide

the same console output.

Configuring System Message Logging

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 (hostname-n)

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.

Catalyst 2960 and 2960-S Switches Software Configuration Guide, Release 15.0(1)SE

System Log Message Format, page 29-2

Default System Message Logging Configuration, page 29-4

Disabling Message Logging, page 29-4

Setting the Message Display Destination Device, page 29-5

Synchronizing Log Messages, page 29-6

Enabling and Disabling Time Stamps on Log Messages, page 29-8

Enabling and Disabling Sequence Numbers in Log Messages, page 29-8

Defining the Message Severity Level, page 29-9

Limiting Syslog Messages Sent to the History Table and to SNMP, page 29-10

Enabling the Configuration-Change Logger, page 29-11

Configuring UNIX Syslog Servers, page 29-12

Configuring System Message Logging

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Catalyst 2960-s