Change CUCM, Unity Connection and CCX IP Address

[Ferdi0802]

Hi,

We have 2 physical servers in DC and DRC. Our UC servers in DC, needs to change the IP address because of network policy.

Server DC -> CUCM Pub, CUCM Sub 1, CCX Primary, Unity Connection Pub

Server DRC -> CUCM Sub 2, CCX Secondary, Unity Connection Subs

Since all the VM in DC will have a new IP address, which server should be changed first? Should we need to change all the server IP in one maintenance time or we can plan several maintenance time windows to do this?. I want to avoid to reinstall all the server. Thanks in advance.

[Jonathan Schulenberg]

The order and grouping are entirely up to you here. Even for CUCM the procedure for changing IP addresses is slightly different between a pub and subs. I would probably try to split this across 2-3 maintenance windows if I were doing it, just to keep the amount of change manageable should something go wrong.