Netgear GS752TXS - Stackable Smart Gigabit Ethernet Switch 관리자 가이드

CST Port Status

Use the Spanning Tree CST Port Status screen to display Common Spanning Tree (CST) 
and Internal Spanning Tree on a specific port on the switch.

To display the Spanning Tree CST Port Status screen, click Switching 

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The following table describes the CST Status information displayed on the screen.

Interface

Displays the port 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 

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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

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Edge Port

Indicates whether the port is enabled as an edge port. Possible values 
are Enabled or Disabled.