36
Table 7 Mappings between the link speed (100M and below) and the path cost
Link speed Port type
Path cost
IEEE
802.1d-1998
IEEE 802.1t
Private
standard
0 N/A 65535 200000000 200000
10 Mbps
Single port
100
2000000 2000
Aggregate interface
containing two Selected
ports
1000000 1800
Aggregate interface
containing three Selected
ports
666666 1600
Aggregate interface
containing four Selected
ports
500000 1400
100 Mbps
Single port
19
200000 200
Aggregate interface
containing two Selected
ports
100000 180
Aggregate interface
containing three Selected
ports
66666 160
Aggregate interface
containing four Selected
ports
50000 140
Table 8 Mappings between the link speed (1000M) and the path cost
Link speed Port type
Path cost
IEEE
802.1d-1998
IEEE 802.1t
Private
standard
1000 Mbps
Single port
4
20000 20
Aggregate interface
containing two Selected
ports
10000 18
Aggregate interface
containing three Selected
ports
6666 16
Aggregate interface
containing four Selected
ports
5000 14
Table 9 Mappings between the link speed (10G) and the path cost
Link speed Port type
Path cost
IEEE
802.1d-1998
IEEE 802.1t
Private
standard
10 Gbps
Single port
2
2000 2
Aggregate interface
1000 1