Switch User Manual

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 lowest
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