華爲s5720s系列交換機同步時間

一,圖例

<HW_4F_L2_SW_01>sys
[HW_4F_L2_SW_01]clock timezone BJ add 8
[HW_4F_L2_SW_01]ntp-service unicast-server 192.168.7.254
[HW_4F_L2_SW_01]dis clock
2019-05-09 16:10:11+08:00

二,驗證

[HW_4F_L2_SW_01]inter g0/0/16 
[HW_4F_L2_SW_01-GigabitEthernet0/0/16]shutdown 
[HW_4F_L2_SW_01-GigabitEthernet0/0/16]undo shutdown 
[HW_4F_L2_SW_01-GigabitEthernet0/0/16]dis logbuffer 
May  9 2019 16:17:35+08:00 HW_4F_L2_SW_01 %%01IFPDT/4/IF_STATE(l)[0]:Interface GigabitEthernet0/0/16 has turned into UP state.
May  9 2019 16:17:25+08:00 HW_4F_L2_SW_01 %%01IFPDT/4/IF_STATE(l)[1]:Interface GigabitEthernet0/0/16 has turned into DOWN state.

三,本身做爲NTP服務器

[HW_4F_L2_SW_01]clock timezone BJ add 8
[HW_4F_L2_SW_01]ntp-service refclock-master 2           
#設置時區，並配置ntp服務

本身做爲客戶端向上遊時間服務器同步時間同時本身又是下游客戶端時間服務器扮演二個角色