21-3
Cisco IOS Software Configuration Guide for Cisco Aironet Access Points
OL-11350-01
Chapter21 Configuring System Message Logging
Configuring System Message Logging
Table21-1 describes the elements of syslog messages.
This example shows a partial access point system message:
00:00:46: %LINK-3-UPDOWN: Interface Port-channel1, changed state to up
00:00:47: %LINK-3-UPDOWN: Interface GigabitEthernet0/1, changed state to up
00:00:47: %LINK-3-UPDOWN: Interface GigabitEthernet0/2, changed state to up
00:00:48: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to down
00:00:48: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/1, changed
state to down 2
*Mar 1 18:46:11: %SYS-5-CONFIG_I: Configured from console by vty2 (10.34.195.36)
18:47:02: %SYS-5-CONFIG_I: Configured from console by vty2 (10.34.195.36)
*Mar 1 18:48:50.483 UTC: %SYS-5-CONFIG_I: Configured from console by vty2 (10.34.195.36)
Default System Message Logging Configuration
Table21-2 shows the default system message logging configuration.
Table21-1 System Log Message Elements
Element Description
seq no: Stamps log messages with a sequence number only if the service sequence-numbers global
configuration command is configured.
For more information, see the “Enabling and Disabling Sequence Numbers in Log Messages”
section on page 21-6.
timestamp formats:
mm/dd hh:mm:ss
or
hh:mm:ss (short uptime)
or
d h (long uptime)
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 “Enabling and Disabling Timestamps on Log Messages” section on
page 21-6.
facility The facility to which the message refers (for example, SNMP, SYS, and so forth). A facility can
be a hardware device, a protocol, or a module of the system software. It denotes the source or the
cause of the system message.
severity Single-digit code from 0 to 7 that is the severity of the message. For a description of the severity
levels, see Table21-3 on page 21-8.
MNEMONIC Text string that uniquely describes the message.
description Text string containing detailed information about the event being reported.
Table21-2 Default System Message Logging Configuration
Feature Default Setting
System message logging to the console Enabled
Console severity Debugging (and numerically lower levels;
see Table21-3 on page 21-8)
Logging buffer size 4096 bytes
Logging history size 1 message