On Jan 25, 2013, at 4:57 PM, Nick Hilliard <nick at foobar.org> wrote: > with rstp you can have a different topology per vlan, but you max out at > 128 vlans. With MST you're stuck with 16 topologies per area, but you can > use all 4094 vlans. I believe you mean PVRST and not RSTP.