Enabling And Disabling Timestamps On Log Messages - Cisco Catalyst 3550 series Software Configuration Manual

Chapter 26 Configuring System Message Logging
Command
Step 5 show running-config
Step 6
copy running-config startup-config
To disable synchronization of unsolicited messages and debug output, use the no logging synchronous
[level severity-level | all] [limit number-of-buffers] line configuration command.
Enabling and Disabling Time Stamps on Log Messages
By default, log messages are not timestamped.
Beginning in privileged EXEC mode, follow these steps to enable time-stamping of log messages:
Command
Step 1
configure terminal
Step 2 service timestamps log uptime
or
service timestamps log datetime [msec] [localtime]
[show-timezone]
Step 3 end
Step 4 show running-config
Step 5
copy running-config startup-config
To disable time stamps for both debug and log messages, use the no service timestamps global
configuration command.
This example shows part of a logging display with the service timestamps log datetime global
configuration command enabled:
*Mar
This example shows part of a logging display with the service timestamps log uptime global
configuration command enabled:
00:00:46: %LINK-3-UPDOWN: Interface Port-channel1, changed state to up
78-11194-09
1 18:46:11: %SYS-5-CONFIG_I: Configured from console by vty2 (10.34.195.36)
Purpose
Verify your entries.
(Optional) Save your entries in the configuration file.
Purpose
Enter global configuration mode.
Enable log time stamps.
The first command enables time stamps on log messages,
showing the time since the system was rebooted.
The second command enables time stamps on log messages.
Depending on the options selected, the time stamp can
include the date, time in milliseconds relative to the local
time zone, and the time zone name.
Return to privileged EXEC mode.
Verify your entries.
(Optional) Save your entries in the configuration file.
Catalyst 3550 Multilayer Switch Software Configuration Guide
Configuring System Message Logging
26-7