Cisco Catalyst 9500

The syslog format is compatible with 4.3 BSD UNIX.
Note
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. Depending on the switch, messages appear in one
of these formats:
• seq no:timestamp: %facility-severity-MNEMONIC:description (hostname-n)
• seq no:timestamp: %facility-severity-MNEMONIC:description
The part of the message preceding the percent sign depends on the setting of these global configuration
commands:
• service sequence-numbers
• service timestamps log datetime
• service timestamps log datetime [localtime] [msec] [show-timezone]
• service timestamps log uptime
Table 11: System Log Message Elements
DescriptionElement
Stamps log messages with a sequence number only if the service sequence-numbers
global configuration command is configured.
seq no:
Date and time of the message or event. This information appears only if the service
timestamps log [datetime | log] global configuration command is configured.
timestamp formats:
mm/dd h h:mm:ss
or
hh:mm:ss (short
uptime)
or
d h (long uptime)
The facility to which the message refers (for example, SNMP, SYS, and so forth).facility
Single-digit code from 0 to 7 that is the severity of the message.severity
Text string that uniquely describes the message.MNEMONIC
Text string containing detailed information about the event being reported.description
System Management Configuration Guide, Cisco IOS XE Amsterdam 17.2.x (Catalyst 9500 Switches)
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Configuring System Message Logs
System Log Message Format