Multiple instance spanning tree operation Overview of MSTP 802.1s Multiple Spanning Tree Protocol (MSTP) MSTP compatibility with RSTP or STP Preconfiguring an MSTP regional topology Types of Multiple Spanning Tree Instances Planning an MSTP application Configuring MSTP at a glance Configuring MSTP operation mode and global settings Configuring MSTP per-port parameters Configure MST instance ports parameters Create a new instance or map VLAN(s) to an existing one Enable event logging Deleting an instance Configure an existent instance Downgrading to lower version build Operating notes for the VLAN configuration enhancement Configuring MST instance parameters Setting the bridge priority for an instance Assigning a port cost for an MST instance Setting the priority for a port in a specified MST instance Setting the priority for specified ports for the IST Enabling or disabling spanning tree operation Viewing MSTP statistics Viewing the MSTP configuration MSTP operating rules Troubleshooting an MSTP configuration BPDU PVST