Chapter 3: Configuring Switching Information | 101

GS716Tv2 and GS724Tv3 Software Administration Manual

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Field Description
Interface Select a physical or port channel interface to configure. The port is
associated with the VLAN(s) associated with the CST.
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 Displays cost of the port participating in the STP topology. Ports with a lower
cost are less likely to be blocked if STP detects loops.
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. Possible values are
Enabled or Disabled.
Point-to-point MAC Derived value of the point-to-point status.
CST Regional Root Displays the bridge priority and base MAC address of the CST Regional
Root.
CST Path Cost Displays the path Cost to the CST tree Regional Root.
Port Forwarding State Displays the Forwarding State of this port.