Manual
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440 
debug ntp events 
no debug ntp events 
To enable debug switch of NTP event 
information. 
61.3 Typical Examples of NTP Function 
A client switch wanted to synchronize time with time server in network, there is two time server 
in network, the one is  used as host, the other is used as standby, the connection and 
configuration as follows (Switch A and  Switch B are the switch or route which support NTP 
server ): 
The configuration of Switch C is as follows: (Switch A and Switch B may have the different 
command because of different companies, we not explain there, our switches are not support 
NTP server at present) 
Switch C:   
Switch(config)#ntp enable 
Switch(config)#interface vlan 1 
Switch(Config-if-Vlan1)#ip address 192.168.1.12 255.255.255.0 
Switch(config)#interface vlan 2 
Switch(Config-if-Vlan1)#ip address 192.168.2.12 255.255.255.0 
Switch(config)#ntp server 192.168.1.11 
Switch(config)#ntp server 192.168.2.11 
61.4 NTP Function Troubleshooting 
In  configuration  procedures,  if  there  is  error  occurred,  the  system  can  give  out  the  debug 
information. 
The  NTP  function  disables  by  default,  the  show  command  can  be  used  to  display  current 
configuration. If the configuration is right please use debug every relative debugging command 
and display specific information in procedure, and the function is configured right or not, you 
can also use show command to display the NTP running information, any questions please 










