PVST
In an STP- or RSTP-enabled LAN, all bridges share one spanning tree. Traffic from all VLANs is forwarded along the spanning tree, and ports cannot be blocked on a per-VLAN basis to prune loops.
PVST allows every VLAN to have its own spanning tree, which increases utilization of links and bandwidth. Because each VLAN runs STP or RSTP independently, a spanning tree only serves its VLAN.
A PVST-enabled HPE device can communicate with a third-party device that is running Rapid PVST or PVST. The PVST-enabled HPE device supports fast network convergence like RSTP when connected to PVST-enabled HPE devices or third-party devices enabled with Rapid PVST.
A port's link type determines the type of BPDUs the port sends.
An access port sends STP BPDUs.
A trunk or hybrid port sends STP BPDUs in VLAN 1 and sends PVST BPDUs in other VLANs.