r1#conf t
Enter configuration commands, one per line. End with CNTL/Z.
r1(config)#service timestamps ?
debug Timestamp debug messages
log Timestamp log messages
<cr>
datetime Timestamp with date and time
uptime Timestamp with system uptime
<cr>
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 192.168.100.2 YES NVRAM up up 产生一条消息用
Serial1/0 unassigned YES NVRAM administratively down down
Serial1/1 unassigned YES NVRAM administratively down down
Serial1/2 unassigned YES NVRAM administratively down down
Serial1/3 unassigned YES NVRAM administratively down down
r1(config)#int fa 0/0
r1(config-if)#shut
r1(config-if)#
00:02:58: %LINK-5-CHANGED: Interface FastEthernet0/0, changed state to administratively down
00:02:59: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to down
r1(config-if)#exit
r1(config)#service timestamps log datetime ?
localtime Use local time zone for timestamps
msec Include milliseconds in timestamp
show-timezone Add time zone information to timestamp
year Include year in timestamp
<cr>
r1(config)#service timestamps log datetime localtime msec show-timezone year
r1(config)#int fa 0/0
r1(config-if)#no shut
r1(config-if)#
*Sep 15 2007 08:18:13.923 UTC: %LINK-3-UPDOWN: Interface FastEthernet0/0, changed state to up
*Sep 15 2007 08:18:14.923 UTC: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up
r1(config)#service timestamps debug ?
datetime Timestamp with date and time
uptime Timestamp with system uptime
<cr>
r1(config)#do debug all
All possible debugging has been turned on
r1#
00:07:09: IP routecache flags changed on Null0,
added No CEF; now No CEF
00:07:09: IP routecache flags changed on Null0,
added No CEF; now No CEF
00:07:10: CEF: background resolution thread state:
00:07:10: Thread fast_thread: Empty
00:07:10: Thread todothread: Empty
00:07:10: Thread slow_thread: Emp
r1#un all
r1#conf t
r1(config)#service timestamps debug datetime ?
localtime Use local time zone for timestamps
msec Include milliseconds in timestamp
show-timezone Add time zone information to timestamp
year Include year in timestamp
<cr
All possible debugging has been turned on
r1#
*Sep 15 2007 08:22:27.335 UTC: IP routecache flags changed on Null0,
added No CEF; now No CEF
*Sep 15 2007 08:22:27.339 UTC: IP routecache flags changed on Null0,
added No CEF; now No CEF
*Sep 15 2007 08:22:27.359 UTC: CEF: background resolution thread state:
*Sep 15 2007 08:22:27.359 UTC: Thread fast_thread: Empty
*Sep 15 2007 08:22:27.359 UTC: Thread todothread: Empty
*Sep 15 2007 08:22:27.359 UTC: Thread slow_thread: Empty
*Sep 15 2007 08:22:27.923 UTC: Local MobileIP: aging arp mobility cache entries
*Sep 15 2007 08:22:27.927 UTC: IP-ST: if_list try 0
*Sep 15 2007 08:22:27.927 UTC: IP-ST: gw_list total 0, try 0, completed list TRUE
To configure the system to timestamp debugging or logging messages, use one of the service timestamps global configuration commands. Use the no form of this command to disable this service.
service timestamps type [uptime]
service timestamps type datetime [msec] [localtime] [show-timezone]
no service timestamps type
Syntax Description
type
Type of message to timestamp: debug or log.
uptime
(Optional) Timestamp with time since the system was rebooted.
datetime
Timestamp with the date and time.
msec
(Optional) Include milliseconds in the date and timestamp.
localtime
(Optional) Timestamp relative to the local time zone.
show-timezone
(Optional) Include the time zone name in the timestamp.
Defaults
No timestamping.
If service timestamps is specified with no arguments or keywords, default is service timestamps debug uptime.
The default for service timestamps type datetime is to format the time in UTC, with no milliseconds and no time zone name.
The command no service timestamps by itself disables timestamps for both debug and log messages.
Command Modes
Global configuration
Command History
Release Modification
10.0
This command was introduced.
Usage Guidelines
Timestamps can be added to either debugging or logging messages independently. The uptime form of the command adds timestamps in the format HHHH:MM:SS, indicating the time since the system was rebooted. The datetime form of the command adds timestamps in the format MMM DD HH:MM:SS, indicating the date and time according to the system clock. If the system clock has not been set, the date and time are preceded by an asterisk (*) to indicate that the date and time are probably not correct.
Examples
The following example enables timestamps on debugging messages, showing the time since reboot:
service timestamps debug uptime
The following example enables timestamps on logging messages, showing the current time and date relative to the local time zone, with the time zone name included:
service timestamps log datetime localtime show-timezone
Related Commands
Command Description
clock set
Manually set the system clock.
ntp
Controls access to the system's Network Time Protocol (NTP) services.