Huawei Quidway S5600 Series Operation Manual page 263

Operation Manual – MSTP
Quidway S5600 Series Ethernet Switches-Release 1510
Path cost can be determined by switch or through manual configuration.
I. Standards for calculating path costs of ports
Currently, a switch can calculate the path costs of ports based on one of the following
standards:
dot1d-1998: Adopts the IEEE 802.1D-1998 standard to calculate the default path
costs of ports.
dot1t: Adopts the IEEE 802.1t standard to calculate the default path costs of ports.
legacy: Adopts the standard defined by private to calculate the default path costs
of ports.
Table 1-22 Specify the standard for calculating path costs
Operation
Enter system view
Specify
standard
used to calculate
the default
costs of the links
connected to the
ports of the switch
Table 1-23 Transmission speeds and the corresponding path costs
Transm
ission
speed
0
10
Mbps
100
Mbps
1,000
Mbps
Command
system-view
the
to be
stp pathcost-standard
path { dot1d-1998 | dot1t |
legacy }
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
Huawei Technologies Proprietary
—
Optional
By default, the IEEE 802.1t
standard is used to calculate
the default path costs.
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
1-27
Chapter 1 MSTP Configuration
Description
Proprietary
standard
200,000
2,000
1,800
1,600
1,400
200
180
160
140
20
18
16
14