Allied Telesis AT-S63 - Manual (Page 541)

AT-S63 Management Software Menus Interface User’s Guide
Section V: Spanning Tree Protocols 541
7. Adjust the following parameters as needed.
1 - Port Priority
This parameter is used as a tie breaker when two or more ports are
determined to have equal costs to the root bridge. The range is 0 to
240 in increments of 16. The default value is 8 (priority value 128). For
a list of the increments, refer to Table 16, “Port Priority Value
Increments” on page 529.
2 - 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 Automatic Update, which
sets port cost depending on the speed of the port. The Automatic
Update default values are shown in Table 12 on page 528 andTable 13
on page 528.
8. After making changes, type R until you return to the Main Menu. Then
type S to select Save Configuration Changes.
Displaying STP
Port Settings
To display STP port settings, perform the following procedure:
1. From the Main Menu, type 3 to select Spanning Tree Configuration.
The Spanning Tree Configuration menu is shown in Figure 177 on
page 535.
2. From the Spanning Tree Configuration menu, type 3 to select
Configure Active Protocol.
The STP menu is shown in Figure 178 on page 537.
3. From the STP menu, type P to select STP Port Parameters.
The STP Port Parameters menu is shown in Figure 179 on page 540.