Spanning Tree (STP) Commands | 313show spanning-tree mst port detailedThis command displays the detailed settings and parameters for a specific port within a particularmultiple spanning tree instance.Syntax show spanning-tree mst port detailed mstid unit/slot/portThe instance mstid is a number that corresponds to the desired existing multiple spanning tree instance.The unit/slot/port is the desired switch port.Mode Privileged Exec and User ExecReport Fields MST Instance ID—The ID of the MST instance.Port Identifier—The port identifier for the specified port within the spanning tree.Port Priority—The priority for a particular port within the selected MST instance.Port Forwarding State—Current spanning tree state of this portPort Role—Each MST Bridge Port that is enabled is assigned a Port Role for each spanning tree.Port Path Cost—Configured value of the Internal Port Path Cost parameterDesignated Root—The Identifier of the designated root for this port.Designated Port Cost—Path Cost offered to the LAN by the Designated PortDesignated Bridge—Bridge Identifier of the bridge with the Designated Port.Designated Port Identifier—Port on the Designated Bridge that offers the lowest cost to the LAN.If 0 (defined as the default CIST ID) is passed as the mstid, then this command displays the settingsand parameters for a specific switch port within the common and internal spanning tree. The unit/slot/port is the desired switch port. In this case, the following are displayed.Port Identifier—The port identifier for this port within the CST.Port Priority—The priority of the port within the CST.Port Forwarding State—The forwarding state of the port within the CST.Port Role—The role of the specified interface within the CST.Port Path Cost—The configured path cost for the specified interface.Designated Root—Identifier of the designated root for this port within the CST.Designated Port Cost—Path Cost offered to the LAN by the Designated Port.Designated Bridge—The bridge containing the designated portDesignated Port Identifier—Port on the Designated Bridge that offers the lowest cost to the LANTopology Change Acknowledgement—Value of flag in next Configuration Bridge Protocol Data Unit(BPDU) transmission indicating if a topology change is in progress for this port.Hello Time—The hello time in use for this port.
