NTP sync verifcation on a Switch acting as NTP source for other devices

jucpci001 · ‎04-07-2015

Hi,

I am using one Switch (Say SW1) as NTP source for other switches (Say SW2, SW3) and it is working fine. SW1 gets time sync from a Router.

I have one more network device i.e. IPS and I have have given SW1 as NTP server IP in the IPS.

Now how do i verify on the switch SW1 whether it is acting as NTP source to IPS ? I can see on SW2 & SW3 using 'sh NTP status', but how do we see on SW1 for whether it acting as NTP source for SW2 & SW3 or any other network device ?

Appreciate your response.

Regards,

Jr.J

Leo Laohoo · ‎04-11-2015

but how do we see on SW1 for whether it acting as NTP source for SW2 & SW3 or any other network device ?

On SW1, you can't. On SW2 and SW3 you can. Not sure what command SW2 and SW3 supports but the easiest way to determine is to look a their clock and compare the time, including the seconds, against SW1 or even your router. Same goes with your IPS.