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Port Identifier
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Port Priority
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Port Forwarding State - Current spanning tree state of this port
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Port Role
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Port Path Cost - Configured value of the Internal Port Path Cost parameter
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Designated Root - The Identifier of the designated root for this port.
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Designated Port Cost - Path Cost offered to the LAN by the Designated Port
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Designated Bridge Bridge - Identifier of the bridge with the Designated Port.
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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 settings and parameters for a
specific switch port within the common and internal spanning tree. The <slot/port> is the desired switch port. In this case, the
following are displayed.
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Port Identifier - The port identifier for this port within the CST.
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Port Priority - The priority of the port within the CST.
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Port Forwarding State - The forwarding state of the port within the CST.
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Port Role - The role of the specified interface within the CST.
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Port Path Cost - The configured path cost for the specified interface.
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Designated Root - Identifier of the designated root for this port within the CST.
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Designated Port Cost - Path Cost offered to the LAN by the Designated Port.
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Designated Bridge - The bridge containing the designated port
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Designated Port Identifier - Port on the Designated Bridge that offers the lowest cost to the LAN
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Topology 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.
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Hello Time - The hello time in use for this port.
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Edge Port - The configured value indicating if this port is an edge port.
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Edge Port Status - The derived value of the edge port status. True if operating as an edge port; false otherwise.
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Point To Point MAC Status - Derived value indicating if this port is part of a point to point link.
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CST Regional Root - The regional root identifier in use for this port.
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CST Port Cost - The configured path cost for this port.
11.1.5 show spanning-tree mst port summary
This command displays the settings of one or all ports within the specified multiple spanning tree instance. The parameter
<mstid> indicates a particular MST instance. The parameter {<slot/port> | all} indicates the desired switch port or all ports.
If 0 (defined as the default CIST ID) is passed as the <mstid>, then the status summary is displayed for one or all ports within
the common and internal spanning tree.
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Format
show spanning-tree mst port summary <mstid> {<slot/port> | all}
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Mode
Privileged EXEC and User EXEC
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Instance ID - The MST instance associated with this port.
MST
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Slot/Port - The interface being displayed
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Type - Currently not used.
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