Manual

Chapter 23: Multiple Spanning Tree Protocol
540 Section IV: Spanning Tree Protocols
Table 20 lists the MSTP port costs with Auto Update when the port is
part of a port trunk.
Parameter changes are immediately activated on the port.
7. After making changes, type R until you return to the Main Menu. Then
type S to select Save Configuration Changes.
Table 19. MSTP Auto Update Port Costs
Port Speed Port Cost
10 Mbps 2,000,000
100 Mbps 200,000
1000 Mbps 20,000
Table 20. MSTP Auto Update Port Trunk Costs
Port Speed Port Cost
10 Mbps 20,000
100 Mbps 20,000
1000 Mbps 2,000