Manual

Chapter 19: Spanning Tree and Rapid Spanning Tree Protocols
298 Section IV: Spanning Tree Protocols
Port Cost
The spanning tree algorithm uses the cost parameter to decide which
port provides the lowest cost path to the root bridge for that LAN. The
range is 0 to 65,535. The default setting is Auto-detect, which sets port
cost depending on the speed of the port. If you select Auto-Detect, the
management software assigns a value of 100 if the port is operating at
10 Mbps, 10 for 100 Mbps, and 4 for one gigabit.
4. After you have configured the parameters, click Apply.
5. To permanently save your changes, select the Save Config option in
the Configuration menu.
Displaying the
STP Settings
To display the STP settings, perform the following procedure:
1. From the Home page, select Monitoring.
2. From the Monitoring menu, select the Layer 2 option.
3. Select the Spanning Tree tab.
Table 7. Port Priority Value Increments
Increment
Bridge
Priority
Increment
Bridge
Priority
008128
1 16 9 144
2 3210160
3 48 11 176
4 6412192
5 8013208
6 9614224
7 112 15 240