I have a 6500 switch connected to a 3560. I have the 6500 as a vtp server and the 3560 as a vtp client in the same vtp domain. 1 of the links is a gigabit L2 trunk link with all vlans allowed. The second link is also a gigabit non trunk link that is in only 1 particular vlan on both ends. I have 1 server connected to the 6509, and 1 server connected to the 3560 both on the same vlan as this second link. If I want to force the servers to communicate via this second link only, do I need to modify the spanning-tree cost, or spanning-tree port priority to make sure these servers only communicate to each other via this second gigabit link?