CUCM Upgrade Plan

[Faisal.Saoud]

We have 5 BE6K (EOS) distributed around 4 location running CUCM 11.5 (cluster consists of 8 nodes + 2 CUC) and we bought a another BE7K for upgrading to version 14. What is the preferred to do this upgrade:

1- upgrade the CUCM cluster through PCD.

2- Build new cluster from scratch

although have nearly 1500 phone running now. and our cluster has integrations with Zoom for recording and Imagicle for reporting.

and if anyone has project plan for each of them, could he share it?

[Carlo Poggiarelli]

Hi @Faisal.Saoud 

I personally prefer to do a cluster from scratch with the exact running cluster configuration on a closed VLAN (not communicating with production VLANs) upgrading that cluster instead of the produciton one. Than work with VSwitch interface on the migration window putting down the old cluster's Virtual interface and bringing UP the new ones.

Just be sure to evaluate the new cluster installation date cause you will have that old cluster DB once you'll switch from old to new.

An upgrade in place could  cause different service outages.

HTH

Regards

Carlo