Instruction Manual
73
8021w standard exceeds 65,535, the default is set to 65,535.
Recommended STP Path Cost Range
Port Type
IEEE 802.1D-
1998
IEEE 802.1w-2001
Ethernet
50-600
200,000-20,000,000
Fast Ethernet
10-60
20,000-2,000,000
Gigabit Ethernet
3-10
2,000-200,000
Recommended STP Path Costs
Port Type
Link Type
IEEE 802.1D-1998 IEEE 802.1w-2001
Ethernet
Half Duplex
100
2,000,000
Full Duplex
95
1,999,999
Trunk
90
1,000,000
Fast Ethernet
Half Duplex
19
200,000
Full Duplex
18
100,000
Trunk
15
50,000
Gigabit Ethernet
Full Duplex
4
10,000
Trunk
3
5,000
Default STP Path Costs
Port Type
Link Type
IEEE 802.1w-2001
Ethernet
Half Duplex
2,000,000
Full Duplex
1,000,000
Trunk
500,000
Fast Ethernet
Half Duplex
200,000
Full Duplex
100,000
Trunk
50,000
