Allied Telesis AT-S63 - Manual (Page 537)

AT-S63 Management Software Menus Interface User’s Guide
Section IV: Spanning Tree Protocols 537
Table 18 lists the RSTP port costs with Auto-Detect when the port is
part of a port trunk.
9. After making changes, type R until you return to the Main Menu. Then
type S to select Save Configuration Changes.
Table 18. RSTP Auto-Detect Port Trunk Costs
Port Speed Port Cost
10 Mbps 20,000
100 Mbps 20,000
1000 Mbps 2,000