Huawei Quidway S6500 Series Command Manual page 526
Ethernet switches release 3000 series
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Also See for Quidway S6500 Series:
- Supplementary manual (5 pages) ,
- Operation manual (647 pages)
Table of Contents
Command Manual - STP
Quidway S6500 Series Ethernet Switches
By default, the switch calculates the default Path Cost of a port by the IEEE 802.1t
standard.
Table 1-4 Cost corresponding to the port speed of different standard.
Link
speed
0
10Mb/s
100Mb/s
1000Mb/
s
10G/s
Generally the path cost of the links in full duplex status is lower than those in half duplex
status.
In calculating the path cost of aggregation links, the 802.1D-1998 does not take into
account the number of aggregation links, but the 802.1T does. The formula involved is:
Path Cost = 200,000,000/link speed in 100Kbps
Duplex state
-
65535
Half-Duplex
Full-Duplex
100
Aggregated Link 2
99
Ports
95
Aggregated Link 3
95
Ports
95
Aggregated Link 4
Ports
Half-Duplex
Full-Duplex
19
Aggregated Link 2
18
Ports
15
Aggregated Link 3
15
Ports
15
Aggregated Link 4
Ports
Full-Duplex
Aggregated Link 2
4
Ports
3
Aggregated Link 3
3
Ports
3
Aggregated Link 4
Ports
Full-Duplex
Aggregated Link 2
2
Ports
1
Aggregated Link 3
1
Ports
1
Aggregated Link 4
Ports
Huawei Technologies Proprietary
1-25
Chapter 1 MSTP Configuration Commands
dot1d-1998
dot1t value
value range
range
200,000,000
2,000,000
1,999,999
1,000,000
666,666
500,000
200,000
199,999
100,000
66,666
50,000
20,000
10,000
6,666
5,000
2,000
1,000
666
500
Huawei-3Com
cost value
200,000
2,000
2,000
1,800
1,600
1,400
200
200
180
160
140
20
18
16
14
2
1
1
1
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