I am considering using PCD to upgrade my customer from 12.5 to 15.
I wanted to check how PCD manages the change of versions. When I have done upgrades in the past where the customer wants to maintain service to phones I can upgrade each node in turn, once all are upgraded I can switch versions in turn and allow the phones to re-register.
Its not clear from the documents I have looked at how the process works with PCD? If it is building new version 15 VMs using the same IP addressing I assume PCD will shutdown the old VM before starting the new version 15 to avoid duplicate IP's on the network? Is it done node by node?
