Configuration Guide    SNTP Configuration 
Ruijie(config)# sntp enable 
Enable the SNTP and synchronize the 
time once immediately. (in order to 
prevent frequent time synchronization, 
the sync-interval must not be less than 
5s.) 
To disable the SNTP, use the no sntp enable command.   
Configuring the IP address for the NTP server   
The  SNTP  Client  is  totally  compatible  with  the  NTP  Server  due  to  the 
inconsistency of SNTP and NTP messages. There are many NTP servers in the 
network, you can choose one switch with less latency as the NTP server.   
For  the  detailed  NTP  server  ip  addresses,  please  logon  to 
http://www.time.edu.cn/  or  http://www.ntp.org/.  For  example, 
192.43.244.18(time.nist.gov). 
To set the IP address for the SNTP server, run the following commands in the 
global configuration mode:   
Ruijie(config)# sntp server ip-address 
Specify the IP address for the SNTP 
server.   
Configuring the SNTP Sync Interval   
To adjust the time regularly, you need to set the sync interval for SNTP Client to 
access the NTP server SNTP Client regularly. 
To configure the SNTP sync interval, run the following commands in the global 
configuration mode:   
Ruijie(config)# sntp interval seconds 
Configure the SNTP sync interval, in 
second.   
Interval range: 60-65535s; 
Default value: 1800s. 
The sync interval configuration cannot take effect immediately. 
You  shall  execute  the  sntp  enable  command  immediately 
after configuring the SNTP sync interval.