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

[John Parduhn]

I'm having the same problem in 7.0(2a), and like Matthew, didn't have issues
using 6.1(2) in VMWare.  I disabled NTP, but now my 7941 will not keep in
sync with CallManager; IP Communicator works fine.

John

On Tue, Apr 28, 2009 at 16:55, Mark Holloway <mh at markholloway.com> wrote:

> I have an ISR configured as an NTP master on the same subnet as my VMWare
> host and guests.  NTP appears to be working fine.
>
> -----Original Message-----
> From: cisco-voip-bounces at puck.nether.net
> [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Wes Sisk
> Sent: Tuesday, April 28, 2009 2:49 PM
> To: Matthew Melbourne
> Cc: cisco-voip at puck.nether.net
> Subject: Re: [cisco-voip] NTP Sync in CUCM 7.x under VMware
>
> 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
> >
> >
>
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