HP 3100 Series Configuration Manual page 82

Table 13 Mappings between the link speed and the path cost
Link speed
0
10 Mbps
100 Mbps
1000 Mbps
10 Gbps
Configuration restrictions and guidelines
•
When it calculates path cost for an aggregate interface, IEEE 802.1t takes into account the
number of Selected ports in its aggregation group, but IEEE 802.1d-1998 does not. The
Port type
N/A
Single port
Aggregate interface
containing 2 Selected
ports
Aggregate interface
containing 3 Selected
ports
Aggregate interface
containing 4 Selected
ports
Single port
Aggregate interface
containing 2 Selected
ports
Aggregate interface
containing 3 Selected
ports
Aggregate interface
containing 4 Selected
ports
Single port
Aggregate interface
containing 2 Selected
ports
Aggregate interface
containing 3 Selected
ports
Aggregate interface
containing 4 Selected
ports
Single port
Aggregate interface
containing 2 Selected
ports
Aggregate interface
containing 3 Selected
ports
Aggregate interface
containing 4 Selected
ports
Path cost
IEEE 802.1d-1998
65535
100
19
4
2
73
Private
IEEE 802.1t
standard
200,000,000 200,000
2,000,000 2000
1,000,000 1800
666,666 1600
500,000 1400
200,000 200
100,000 180
66,666 160
50,000 140
20,000 20
10,000 18
6666 16
5000 14
2000 2
1000 1
666 1
500 1