Allied Telesis AT-S62 - Manual (Page 333)

AT-S62 User’s Guide
Section IV: Spanning Tree Protocols 333
Table 14 lists the STP port costs with Auto-Detect when a port is part of a
port trunk.
Table 15 lists the RSTP port costs with Auto-Detect.
Table 16 lists the RSTP port costs with Auto-Detect when the port is part
of a port trunk.
You can override Auto-Detect and set the port cost manually.
Table 14 STP Auto-Detect Port Trunk Costs
Port Speed Port Cost
10 Mbps 4
100 Mbps 4
1000 Mbps 2
Table 15 RSTP Auto-Detect Port Costs
Port Speed Port Cost
10 Mbps 2,000,000
100 Mbps 200,000
1000 Mbps 20,000
Table 16 RSTP Auto-Detect Port Trunk Costs
Port Speed Port Cost
10 Mbps 20,000
100 Mbps 20,000
1000 Mbps 2,000