Will new License MAC be generated if NTP server is changed in Call Manager 8.6(2)?

[jamize]

      We are changing our NTP server IP Address and will change from IP Addressing in the Call Manager 8.6(2) to the actual DNS name.  I've read that this will generate a new License MAC that will only be valid for 30 days.  We are using MCS servers and need to know if we have to have a valid license re-issued from Licensing.

Thanks,

Jeff            

[Jonathan Schulenberg]

Yes. The NTP Server 1 is used in the License MAC

http://docwiki.cisco.com/wiki/Licensing_Model_for_Virtualized_UC_Applications

Please remember to rate helpful responses and identify helpful or correct answers.

[jamize]

Since we are using MCS servers, does that mean we "won't" have to have a new License MAC reissued?  The documentation indicates it's only required if running vm ware.

[Jaime Valencia · Accepted solution]

That only affects UC on UCS as the license MAC is a hash from several values, the MAC from MCS servers remain the same no matter what you change on CUCM.

HTH

java

if this helps, please rate

www.cisco.com/go/pdihelpdesk

[jamize]

Thanks for the reply, however, that really didn't answer the question.

"Since we are using MCS servers,does that mean we "won't" have to have a new License MAC or file reissued?  The documtation indicates it's only required if running vm ware."

Please let me know.

Thanks,

Jeff

[yhung · Accepted solution]

I think that's what Jaime meant on his comment. New License MACs only come to play on a virtualized environment. If you have your CUCM installed directly on MCS server, then the license MAC is static and will never change, regardless of your settings. If you have CUCM installed inside ESXi running on your MCS server, then because it's virtualized, it will change.

Thanks,

Yung

[jamize]

I'm sorry I wasn't clear.  Yes....we are only running CUCM on the MCS server direct...not virtualized. 

Thank you both for answering so quickly.  I have to change the ntp setting tonight and restart the servers.

Thanks!!!

Jeff