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Configuring MSTP 199
Perform the following configuration in system view.
By default, the switch calculates the default Path Cost of a port by the IEEE 802.1t
standard.
Generally the path cost of the links in full duplex status is lower than those in half
duplex status.
Table 204 Specifying the Standard To Be Followed in Path Cost Calculation
Operation Command
Specify the standard to be adopted when the switch
calculates the default Path Cost for the connected
link
stp pathcost-standard {
dot1d-1998 | dot1t | legacy }
Restore the default standard to be used undo stp pathcost-standard
Table 205 Cost Corresponding to the Port Speed of Different Standard
Link speed Duplex state
dot1d-1998
value range
dot1t value range
Huawei-3Com
cost value
0 - 65535 200,000,000 200,000
10Mb/s Half-Duplex
Full-Duplex
Aggregated Link
2 Aggregated
Link 3 Ports
Aggregated Link
4 Ports
100
99
95
95
95
2,000,000
1,999,999
1,000,000
666,666
500,000
2,000
2,000
1,800
1,600
1,400
100Mb/s Half-Duplex
Full-Duplex
Aggregated Link
2 Ports
Aggregated Link
3 Ports
Aggregated Link
4 Ports
19
18
15
15
15
200,000
199,999
100,000
66,666
50,000
200
200
180
160
140
1000Mb/s Full-Duplex
Aggregated Link
2 Ports
Aggregated Link
3 Ports
Aggregated Link
4 Ports
4
3
3
3
20,000
10,000
6,666
5,000
20
18
16
14
10G/s Full-Duplex
Aggregated Link
2 Ports
Aggregated Link
3 Ports
Aggregated Link
4 Ports
2
1
1
1
2,000
1,000
666
500
2
1
1
1