Configuring System Message Logging - Cisco Catalyst 3550 series Software Configuration Manual

Configuring System Message Logging

Configuring System Message Logging
These sections describe how to configure system message logging:
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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.
Table 26-1
Table 26-1 System Log Message Elements
Element
seq no:
timestamp formats:
mm/dd hh:mm:ss
or
hh:mm:ss (short uptime)
or
d h (long uptime)
facility
severity
Catalyst 3550 Multilayer Switch Software Configuration Guide
26-2
System Log Message Format, page 26-2
Default System Message Logging Configuration, page 26-3
Disabling and Enabling Message Logging, page 26-4
Setting the Message Display Destination Device, page 26-4
Synchronizing Log Messages, page 26-6
Enabling and Disabling Time Stamps on Log Messages, page 26-7
Enabling and Disabling Sequence Numbers in Log Messages, page 26-8
Defining the Message Severity Level, page 26-8
Limiting Syslog Messages Sent to the History Table and to SNMP, page 26-10
Configuring UNIX Syslog Servers, page 26-10
describes the elements of syslog messages.
Description
Stamps log messages with a sequence number only if the service sequence-numbers global
configuration command is configured.
For more information, see the
section on page 26-8.
Date and time of the message or event. This information appears only if the service timestamps
log [datetime | log] global configuration command is configured.
For more information, see the
on page 26-7.
The facility to which the message refers (for example, SNMP, SYS, and so forth). For a list of
supported facilities, see Table 26-4 on page
Single-digit code from 0 to 7 that is the severity of the message. For a description of the severity
levels, see Table 26-3 on page
Chapter 26
"Enabling and Disabling Sequence Numbers in Log Messages"
"Enabling and Disabling Time Stamps on Log Messages" section
26-12.
26-9.
Configuring System Message Logging
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