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Auto-calculate Port Path Cost: Indicate the port auto-calculate port path cost
Auto-calculate External Port Path Cost - Displays whether the external path cost is automatically
calculated (Enabled) or not (Disabled). External Path cost will be calculated based on the link speed of the
port if the configured value for External Port Path Cost is zero.
External Port Path Cost - The External Path Cost of the specified port in the spanning tree.
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 port.
Designated Port Identifier: Port on the Designated Bridge that offers the lowest cost to the LAN.
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.
Hello Time: The hello time in use for this port.
Edge Port: The configured value indicating if this port is an edge port.
Edge Port Status: The derived value of the edge port status. True if operating as an edge port; false
otherwise.
Point To Point MAC Status: Derived value indicating if this port is part of a point to point link.
CST Regional Root: The regional root identifier in use for this port.
CST Port Cost: The configured path cost for this port.
This command displays the settings of one or all ports within the specified multiple spanning
tree instance. The parameter <0-4094> 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 <0-4094>, then the status summary is
displayed for one or all ports within the common and internal spanning tree.
Syntax
show spanning-tree mst port summary <0-4094> {<slot/port> | all}
<0-4094> - multiple spanning tree instance ID.
<slot/port> - is the desired interface number.
all - All interfaces.
Default Setting
None
Command Mode
Privileged Exec
Display Message
MST Instance ID: The MST instance associated with this port.
Interface: The interface being displayed.