Allied Telesis AT-S63 - Manual (Page 308)

Chapter 19: Spanning Tree and Rapid Spanning Tree Protocols
308 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.
9. After you have configured the parameters, click Apply.
10. From the Configuration menu, select the Save Config option to
permanently save your changes. (This option is not displayed if there
are no changes to save.)
Note
A change to the port priority parameter takes effect immediately. A
change to the port cost value requires you to reset the switch. A new
port cost value is not implemented until the unit is reset.
Displaying the
STP Settings
To display the STP settings, perform the following procedure:
1. From the Home page, select Monitoring.
The Monitoring System page is displayed with the General tab
selected by default, as shown in Figure 6 on page 42.
2. From the Monitoring menu, select the Layer 2 option.
6 96 14 224
7 112 15 240
Table 7. Port Priority Value Increments (Continued)
Increment
Bridge
Priority
Increment
Bridge
Priority