I'm just wondering if you have vtp pruning configured and you have pruned vlans, should you see MAC addresses belonging to those pruned vlans on a switch?
Basically if vlan 100 pruned from sw1, should you still see mac addresses of devices associated with vlan 100?
Thank you in advance.
>> Thank you for your response, but just one more question, if a vlan is pruned wouldn't that exclude STP BPDUs from being learn on that vlan?
no, STP still runs for pruned vlans.
automatic vlan pruning doesn't limit the STP diameter in a network
to do this you need to use
switchport trunk allowed vlan x,y,z
if you do so only STP instances for permitted vlans run on the link.
This is important because other collegues have reported scalability issues caused by this misunderstanding.
low end switches have limit in STP instances number that can arise.
>> CDP yes only on native vlan
Hope to help