|LAN Switching Technologies
What is benefit of PVST+?
supports Layer 3 load balancing without loops.
reduces the CPU cycles for all the switches in the network.
allows the root switch location to be optimized per VLAN.
automatically selects the root bridge location, to provide optimized bandwidth usage.
Per VLAN Spanning Tree (PVST) maintains a spanning tree instance for each VLAN configured in the network. This means a switch can be the root bridge of a VLAN while another switch can be the root bridge of other VLANs in a common topology.