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Port Path Cost - Set the Path Cost to a new value for the specified port in the common and internal
spanning tree. It takes a value in the range of 1 to 200000000.
Non-Configurable Data
Auto-calculate Port Path Cost - Displays whether the path cost is automatically calculated (Enabled) or
not (Disabled). Path cost will be calculated based on the link speed of the port if the configured value for
Port Path Cost is zero.
Port ID - The port identifier for the specified port within the CST. It is made up from the port priority and
the interface number of the port.
Port Up Time Since Counters Last Cleared - Time since the counters were last cleared, displayed in
Days, Hours, Minutes, and Seconds.
Port Mode - Spanning Tree Protocol Administrative Mode associated with the port or LAG. The possible
values are Enable or Disable.
Port Forwarding State - The Forwarding State of this port.
Port Role - Each MST Bridge Port that is enabled is assigned a Port Role for each spanning tree. The
port role will be one of the following values: Root Port, Designated Port, Alternate Port, Backup Port,
Master Port, or Disabled Port.
Designated Root - Root Bridge for the CST. It is made up using the bridge priority and the base MAC
address of the bridge.
Designated Cost - Path Cost offered to the LAN by the Designated Port.
Designated Bridge - Bridge Identifier of the bridge with the Designated Port. It is made up using the
bridge priority and the base MAC address of the bridge.
Designated Port - Port Identifier on the Designated Bridge that offers the lowest cost to the LAN. It is
made up from the port priority and the interface number of the port.
Topology Change Acknowledge - Identifies whether the next BPDU to be transmitted for this port
would have the topology change acknowledgement flag set. It is either "True" or "False".
Edge port - indicates whether the port is enabled as an edge port. It takes the value "Enabled" or
"Disabled".
Point-to-point MAC - Derived value of the point-to-point status.
CST Regional Root - Bridge Identifier of the CST Regional Root. It is made up using the bridge priority
and the base MAC address of the bridge.
CST Path Cost - Path Cost to the CST Regional Root.
Command Buttons
Submit - Applies the new configuration and causes the changes to take effect. These changes will not
be retained across a power cycle unless a save configuration is performed.
Refresh - Refreshes the screen with most recent data.
Force - Clicking this button will force the port to send out 802.1w or 802.1s BPDUs.