[cisco-voip] NTP Sync in CUCM 7.x under VMware

Wes Sisk wsisk at cisco.com
Tue Apr 28 17:48:43 EDT 2009


VMWare recommends not using NTP on guests.  Synch the host and let the 
guests follow the host.

/Wes

On Tuesday, April 28, 2009 5:31:45 PM, Matthew Melbourne 
<matt at melbourne.org.uk> wrote:
> Hi,
>
> I have installed CUCM 7.0(2a) under VMware, but I am unable to get it
> synchronise to an external NTP server. I've tried several external NTP
> servers, but using the platform "utils ntp status" CLI command shows that it
> is configured (and reachable) but will not sync with the external time
> source. The Publisher appears to synchronise momentarily but quickly loses
> sync and starts following its own clock. Also, I notice that the appliance
> hardware clock is losing time, as compared to the VM Host OS time. I'm sure
> certain I didn't have this problem with a CUCM 6.1(3) VM.
>
> Cheers,
>
> Matt
>
>   



More information about the cisco-voip mailing list