Am planning for cutting down the Subnet of Telecom Servers IP Range. Once i do this, all CUCM & CUC servers Subnet mask and Gateway has to be changed, but IP Address remains the same.
Changing the Subnet mask and Gateway will impact anything or any precautionary measures or any procedures to be followed ??
I was just referring the DOC which I have attached which says
Initial Trust List and Certificate Regeneration
If you change the IP address or the hostname of a server in a Cisco Unified Communications Manager release 8.0 or later cluster, the Initial Trust List (ITL) file and the certificates in the ITL are regenerated. The regenerated files do not match the files stored on the phones.