User manual

Chapter 3: Configuring Switching Information | 39
GS108T and GS110TP Smart Switch Software Administration Manual
Click Refresh to update the screen with the latest MST information.
STP Statistics
Use the Spanning Tree Statistics page to view information about the number and type of
bridge protocol data units (BPDUs) transmitted and received on each port.
To display the Spanning Tree Statistics page, click Switching  STP  Advanced  STP
Statistics.
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 selected MST instance. 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.
Field Description