cisco 交換機設定時區、時間、同步日誌本地時間等操作
Core-Switch-1#show clock
Core-Switch-1#show ntp status
Core-Switch-1#conf t
Core-Switch-1(config)# clock timezone GMT +8
Core-Switch-1(config)#service timestamps debug datetime msec localtime show-timezone
Core-Switch-1(config)#service timestamps log datetime msec localtime show-timezone
Core-Switch-1(config)#exit
Core-Switch-1# clock set 13:51:00 Sep 7 2011
或通過NTP是指ntp伺服器的Key值
Core-Switch-1#wr
Core-Switch-1#sh log
預設情況下日誌訊息不包括日期和時間戳。
service timestamps {debug | log } uptime
service timestamps {debug | log } datetime [mesc] [localtime] [show-timezone] [year]
debug引數在除錯輸出時包括時間戳log引數在每種日誌訊息中新增一個時間戳
uptime在訊息中包括路由器開機以來的時間
0w2d 開機後0周2天
datetime顯示準確的日期和時間 UTC 格式標準格式 MM DD HH:MM:SS
datetime後面可以跟一些引數
mesc訊息中包括毫秒資訊localtime顯示基於本地配置的時區時間show-timezone輸出包括時區名稱year輸出包括年份資訊
未設定時間前：
#sh log
4w0d: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/6, changed state to up
4w0d: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/6, changed state to down
4w0d: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/6, changed state to up
4w1d: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/5, changed state to down
4w1d: %LINK-3-UPDOWN: Interface FastEthernet0/5, changed state to down
4w1d: %LINK-3-UPDOWN: Interface FastEthernet0/5, changed state to up
4w1d: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/5, changed state to up
4w1d: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to down
4w1d: %LINK-3-UPDOWN: Interface FastEthernet0/3, changed state to down
4w1d: %LINK-3-UPDOWN: Interface FastEthernet0/3, changed state to up
4w1d: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to up
設定後
#sh log
.Sep 7 05:59:22: %SYS-6-CLOCKUPDATE: System clock has been updated from 13:59:22 BJ Wed Sep 7 2011 to 05:59:22 UTC Wed Sep 7 2011, configured from console by wht on vty2 (172.16.100.10).
.Sep 7 13:59:23: %SYS-6-CLOCKUPDATE: System clock has been updated from 05:59:23 UTC Wed Sep 7 2011 to 13:59:23 GMT Wed Sep 7 2011, configured from console by wht on vty2 (172.16.100.10).
.Sep 7 13:59:24: %SYS-5-CONFIG_I: Configured from console by wht on vty2 (172.16.100.10)
.Sep 7 13:58:00: %SYS-6-CLOCKUPDATE: System clock has been updated from 14:00:05 GMT Wed Sep 7 2011 to 13:58:00 GMT Wed Sep 7 2011, configured from console by wht on vty2 (172.16.100.10).