61-3
Software Configuration Guide—Release IOS XE 3.6.0E and IOS 15.2(2)E
OL_28731-01
Chapter 61 Configuring System Message Logging
Configuring System Message Logging
This example shows a partial switch system message:
00:00:46: %LINK-3-UPDOWN: Interface Port-channel1, changed state to up
00:00:47: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/1, changed state to up
00:00:47: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/2, 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 GigabitEthernet1/0/1, 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
Table 61-2 shows the default system message logging configuration.
Table 61-1 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
(Optional)” section on page 61-7.
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 61-7.
facility The facility to which the message refers (for example, SNMP, SYS, and so forth). For a list of
supported facilities, see Table 61-4 on page 61-12.
severity Single-digit code from 0 to 7 that is the severity of the message. For a description of the severity
levels, see Table 61-3 on page 61-9.
MNEMONIC Text string that uniquely describes the message.
description Text string containing detailed information about the event being reported.
Table 61-2 Default System Message Logging Configuration
Feature Default Setting
System message logging to the console Enabled.
Console severity Debugging (and numerically lower levels; see
Table 61-3 on page 61-9).
Logging file configuration No filename specified.
Logging buffer size 4096 bytes.
Logging history size 1 message.
Timestamps Disabled.
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