I have a network on which most of the switches are running VTP client/server mode. Few switches are not yet in that mode - for specific customization or because they simply cannot handle it.
Thinking about implementing VTP pruning, I'm wondering how switches running VTP client/server with pruning will react when connected to a switch not having VTP.
That very nice answer here https://community.cisco.com/t5/routing/vtp-explanation-changed-modes-from-vtp-server-to-vtp-transparent/m-p/2646119/highlight/true#M248344 explains clearly the switch running VTP will prune all VLAN by default if not receiving VTP Joins message from its neighbor (that will obvisouly not going to be sent in y case).
Now, does that mean I cannot leverage the pruning option until my full network is running VTP? Or could I use VTP pruning but making sure first all my trunk links between VTP managed and non VTP managed switches are manually configured with the switchport mode allowed vlan I definitly need?
Is the switchport trunk allowed vlan supersides the VTP pruning command and force the VTP client switch to still send the VLAN trafic?