Disabling the SNTP Mode

If you want to prevent SNTP from being used even if it is selected by timesync, configure the SNTP mode as disabled.


no sntp

Disables SNTP by changing the SNTP mode configuration to Disabled.


If the switch is running SNTP in unicast mode with an SNTP server at and a server version of 3 (the default), no sntp changes the SNTP configuration as shown below and disables time synchronization on the switch.

Disabling time synchronization by disabling the SNTP mode

switch(config)# no sntp
switch(config)# show sntp

 SNTP Configuration

  Time Sync Mode: Sntp
  SNTP Mode : disabled
  Poll Interval (sec) [720] : 600

  IP Address     Protocol Version
  -------------  -----------------  3

Note that even though the Time Sync Mode is set to Sntp, time synchronization is disabled because no sntp has disabled the SNTP Mode parameter.