topic Re: NTP configuration doesn't work properly in Switching

NTP configuration doesn't work properly

Rem Markov — Mon, 24 Jul 2023 07:00:17 GMT

Hey!

So I have a few switches of Nexus9000 C93108TC-FX Chassis having the version of 7.0(3)I7(3).

I don't know where to look, I tried everything and they are set up exactly the same.

But for some reason only one of them we can set:

ntp server 0.site.pool.ntp.med.one use-vrf management.

but on all the others I'm unable to do so and they only accept:
ntp server 0.mo.pool.ntp use-vrf management.

I really don't know why one can accept the ntp with the domain and the other can't even tho they are exactly the same.

Is there a place to check? something to do?

Re: NTP configuration doesn't work properly

DanielP211 — Mon, 24 Jul 2023 07:10:22 GMT

Hello!

What is the response you get from the Nexus when you input it?

BR

Re: NTP configuration doesn't work properly

Rem Markov — Mon, 24 Jul 2023 07:13:49 GMT

Nothing actually,

I run show ntp peers after it, and than I see if it worked or not.

It should output something?

Re: NTP configuration doesn't work properly

M02@rt37 — Mon, 24 Jul 2023 07:36:01 GMT

Hello @Rem Markov,

Do you please share output "on the others" to see what is the error message ?

#sh ntp peer-status (share also the output)

Thanks.

Re: NTP configuration doesn't work properly

MHM Cisco World — Mon, 24 Jul 2023 07:55:49 GMT

Debug ntp packet

For work and nonwork SW

Re: NTP configuration doesn't work properly

Rem Markov — Mon, 24 Jul 2023 07:55:52 GMT

I think you didn't quite understand me.

I have a ntp pool in my on prem enviromnet.
I have 5 switchs of the same type and of the same version.

4 of them will configure ntp only when run like that:

ntp server 0.mo.pool.ntp use-vrf management

The other one will only be configured when ran like this:

ntp server 0.site.pool.ntp.med.one use-vrf management.

There is no error and no output . it either configures it or not.

Like if I do the:
ntp server 0.site.pool.ntp.med.one use-vrf management.

on one of the 4 , it just does nothing, no error , no nothing.
all of the 5 switches are configured the same.

Re: NTP configuration doesn't work properly

Rem Markov — Mon, 24 Jul 2023 07:58:41 GMT

both of them work, just differently and I don't understand why.

There is no command of "debug ntp packet"

Re: NTP configuration doesn't work properly

Rem Markov — Mon, 24 Jul 2023 08:11:12 GMT

And I want to add,

3 switches works with:
ntp server 0.site.pool.ntp use-vrf management.

2 switch works with:

ntp server 0.site.pool.ntp.med.one use-vrf management

Re: NTP configuration doesn't work properly

Rem Markov — Mon, 24 Jul 2023 08:35:25 GMT

I still don't quite understand it, but after running:
no ntp server 0.site.pool.ntp.med.one use-vrf management.
and then
ntp server 0.site.pool.ntp.med.one use-vrf management.
again it worked.

Re: NTP configuration doesn't work properly

Georg Pauwen — Mon, 24 Jul 2023 08:50:48 GMT

Hello,

I was just thinking that maybe you had some sort of cli alias or cli variable configured (show cli alias/show cli var). But it looks like you got the problem resolved...

Re: NTP configuration doesn't work properly

M02@rt37 — Mon, 24 Jul 2023 08:58:33 GMT

Great @Rem Markov !!