FS728TP Smart Switch Software Administration Manual
Configuring Switching Settings 4-31
v1.1, September 2009
CST Configuration
The Common Spanning Tree (CST) describes the topology connecting STP/RSTP Bridges and
MSTP regions.
To configure CST on the device:
1. Click Switching > STP > Advanced > CST Configuration. The CST Configuration screen
displays:
The CST Configuration screen contains the following fields:
CST Configuration
•Bridge Priority – Enter the bridge priority value. When switches or bridges are running
STP, each is assigned a priority. After exchanging BPDUs, the device with the lowe st
priority value becomes the Root Bridge. The default value is 32768. The bridge priority
value is provided in increments of 4096.
•Hello Time – Enter the device Hello Time. The Hello Time indicates the amount of time
in seconds a Root Bridge waits between configuration messages. The default is 2 seconds.
Figure 4-19