User manual

Chapter 3: Configuring Switching Information | 33
GS108T and GS110TP Smart Switch Software Administration Manual
• Hello Timer. Specifies the switch Hello time, which indicates the amount of time in
seconds a port waits between configuration messages. The value is fixed at 2
seconds.
6. Click Cancel to cancel the configuration on the screen and reset the data on the screen to
the latest value of the switch.
7. If you make any configuration changes, click Apply to send the updated configuration to the
switch. Configuration changes take place immediately.
8. Click Refresh to update the information on the screen with the most current data.
CST Port Status
Use the Spanning Tree CST Port Status page 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 page, click Switching > STP > Advanced 
CST Port Status.
The following table describes the CST Status information displayed on the screen.
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.