Huawei Quidway S3900 series Command Manual page 289

Command Manual – MSTP
Quidway S3900 Series Ethernet Switches-Release 1510
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System view
Parameter
dot1d-1998: Uses the IEEE 802.1D-1998 standard to calculate the default path costs
of ports.
dot1t: Uses the IEEE 802.1t standard to calculate the default path costs of ports.
legacy: Uses the proprietary standard to calculate the default path costs of ports.
Description
Use the stp pathcost-standard command to set the standard to be used to calculate
the default path costs of the links connected to the switch.
Use the undo stp pathcost-standard command to specify to use the default standard.
By default, a switch uses the IEEE 802.1t standard to calculate the default path costs of
ports.
Table 1-4 Transmission speeds and the corresponding path costs
Transm
ission
speed
0
10
Mbps
100
Mbps
1,000
Mbps
10
Gbps
Operation mode
(half-/full-duplex)
-
Half-duplex/Full-duplex
Aggregated link 2 ports
Aggregated link 3 ports
Aggregated link 4 ports
Half-duplex/Full-duplex
Aggregated link 2 ports
Aggregated link 3 ports
Aggregated link 4 ports
Full-duplex
Aggregated link 2 ports
Aggregated link 3 ports
Aggregated link 4 ports
Full-duplex
Aggregated link 2 ports
Aggregated link 3 ports
Aggregated link 4 ports
Huawei Technologies Proprietary
Chapter 1 MSTP Configuration Commands
802.1D-1998 IEEE 802.1t
65,535 200,000,000
100 200,000
95 1,000,000
95 666,666
95 500,000
19 200,000
15 100,000
15 66,666
15 50,000
4 200,000
3 10,000
3 6,666
3 5,000
2 200,000
1 1,000
1 666
1 500
1-35
Standard
defined by
Private
200,000
2,000
1,800
1,600
1,400
200
180
160
140
20
18
16
14
2
1
1
1