Follow these steps to specify a standard for the device to use when it calculates the default path cost:
To do...
Use the command...
Remarks
Enter system view
system-view
—
Specify a standard for the device
to use when it calculates the default
path costs of its ports
stp pathcost-standard
{
dot1d-1998
|
dot1t
|
legacy
}
Optional
By default, the device calculates
the default path cost for ports
based on a private standard.
CAUTION:
If you change the standard that the device uses to calculate the default path costs, you restore the path
costs to the default.
shows the mappings between the link speed and the path cost.
Table 13
Mappings between the link speed and the path cost
Path cost
Link speed
Port type
IEEE
802.1d-1998
IEEE 802.1t
Private standard
0 —
65535
200,000,000
200,000
Single Port
2,000,000
2,000
Aggregate interface
containing 2 selected ports
1,000,000 1,800
Aggregate interface
containing 3 selected ports
666,666 1,600
10 Mbps
Aggregate interface
containing 4 selected ports
100
500,000 1,400
Single Port
200,000
200
Aggregate interface
containing 2 selected ports
100,000 180
Aggregate interface
containing 3 selected ports
66,666 160
100 Mbps
Aggregate interface
containing 4 selected ports
19
50,000 140
Single Port
20,000
20
Aggregate interface
containing 2 selected ports
10,000 18
Aggregate interface
containing 3 selected ports
6666 16
1000 Mbps
Aggregate interface
containing 4 selected ports
4
5000 14
Single Port
2000
2
10 Gbps
Aggregate interface
containing 2 selected ports
2
1000 1
68
