[cisco-voip] Checking NTP status on CCM

[Wes Sisk]

You *can* because you have full access to the servers, however 
understand that any upgrade will overwrite the configuration file. See 
CSCsb66270.  It is very important for your CM servers to be time 
synched, even if it's the wrong time. This is why the basic 
recommendation is:
1. all subs synch to pub
2. pub *may* sync to another clock source.

It's generally not a good idea to sync all servers independently because 
of the variations that become possible (different ntp sources, ...)

/Wes

Micah Bennett wrote:
> I agree that that document says not to, but this document says the
> opposite.  Page 7 of 8 near the bottom in reference to the configuration
> for CCM 4.2 and earlier.  That is where the confusion lies.  
>
> In my TAC case I also asked if I can just point all my servers straight
> to the clock servers using the NTP.conf file that is on each box.  No
> answers back yet on any of my TAC questions. 
>
> Micah Bennett
> Telecommunications Admin
> Automated License Systems
>
> -----Original Message-----
> From: Robert Kulagowski [mailto:rkulagow at gmail.com] 
> Sent: Tuesday, May 13, 2008 9:13 AM
> To: Micah Bennett
> Cc: cisco-voip at puck.nether.net
> Subject: Re: [cisco-voip] Checking NTP status on CCM
>
> Micah Bennett wrote:
>   
>> Hello all
>>
>> My CCM publisher server is pointed to our two NTP servers (via the 
>> NTP.conf) file.  My two CCM subscriber servers and my two IPCC servers
>>     
>
>   
>> are pointed to the CCM Publisher as their NTP source.
>>     
>
> According to 
> http://www.cisco.com/en/US/products/sw/voicesw/ps556/products_configurat
> ion_example09186a008009470f.shtml
>
> Don't do that:
> "
> Note: You cannot use NTP to synchronize between two Cisco CallManagers. 
> The NTP that is installed in Cisco CallManager is a client NTP service 
> and only synchronizes to an NTP server.
> "
>
>
>
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