NTP error while installing CUCM Subcriber

[mohsin majeed]

Dears,

When i am trying to install subcriber it gives me NTP error as attached. I added Subcriber node in Publisher first. Activated services on Pub. Also the NTP is accessible on Pub.

We have configured DNS during installation but records are not entered in DNS Server. Could it be the possible reason?

Please guide me 

Thanks

[Jonathan Schulenberg]

Absolutely. If you enable DNS on the mode then all nodes in the cluster must be forward (A) and re see (PTR) resolvable.

[mohsin majeed]

Thanks for your reply,

I will visit the site today and will update later in the day.

[Aman Soi]

Hi Mohsin,

CUCM version used is 8.5.1

the snapshot attached shows NTP server is not reachable from first server[PUB].

from CLI, run the command utils ntp status and share the output.

you can refer the similar discussion in past but CUCM version is different

https://supportforums.cisco.com/discussion/12250381/cucm-10-subs

regds,

aman

[mohsin majeed]

Dear,

here is the output and NTP setting in OS Admin is attached. All DNS records are entered and working properly.

Client is using same ip for DNS and NTP server.

In addition to this i added 2 more ntp servers which shows accessible in OS Admin page but CLI status is still Unsynchronized

admin:utils ntp status
ntpd (pid 22912) is running...

     remote           refid      st t when poll reach   delay   offset  jitter
==============================================================================
 10.64.200.200   .LOCL.           1 u   60   64  377    0.451  -11.618  16.380
 10.64.42.114    0.0.0.0         16 u    8   64    0    0.000    0.000   0.000

unsynchronised
  time server re-starting
   polling server every 64 s

Current time in UTC is : Thu Apr  2 10:55:39 UTC 2015
Current time in Asia/Riyadh is : Thu Apr  2 13:55:39 AST 2015

Please help

[Aman Soi · Accepted solution]

Hi Mohsin,

output shows NTP is unsynchronised.

10.64.42.114 is showing inaccesible.

can u try restarting utils ntp restart from CLI of PUB?

regds,

aman

[mohsin majeed]

Thanks,

As per above "utils ntp status" client provided different ntp servers which were accessible through OS Admin Page but not not synchronizable and client's devices were not under our control to setup ntp on core switch or voice gateway.

Later on they provided NTP from on of the Interface vlan 100 (10.64.100.1) was accessible and synchronized. Everything is good to go.

It was pure unsynchronized ntp problem even it was accessible.

Thanks again

[Aman Soi]

thanks for update.

Good issue is resolved.

regds,

aman