Command Manual - STP
Quidway S6500 Series Ethernet Switches
Chapter 1 MSTP Configuration Commands
Huawei Technologies Proprietary
1-11
Description
Using
stp bridge-diameter
command, you can configure the switching network
diameter. Using
undo stp bridge-diameter
command, you can restore the default
network diameter.
The network diameter refers to the maximum count of switches on the path between
any two terminal devices.
The definition of network diameter: Maximum count of switches between the farthest
communication ends.
stp bridge-diameter
command configures the switching network diameter and
determines the three time parameters of MSTP accordingly. This configuration takes
effect on CIST only but makes no sense for MSTI.
The spanning tree convergence can be speeded up, when Hello Time, Forward Delay,
and Max Age are well configured. These parameters are related to the network scale.
You can configure the network scale to get the time parameters. Upon the
user-configured bridge-diameter parameter, MSTP will automatically set Hello Time,
Forward Delay, and Max Age to moderate values. When bridge-diameter defaults to 7,
the time parameters also take their respective default values.
For the related command, see
stp timer forward-delay, stp timer hello, stp timer
max-age
.
Example
# Set the diameter of the switching network to 5.
[Quidway] stp bridge-diameter 5
1.1.12 stp cost
Syntax
stp
[
instance instance-id
]
cost cost
undo stp
[
instance instance-id
]
cost
View
Ethernet port view
Parameter
instance instance-id
: Specifies the spanning tree instance ID, ranging from 0 to 16. The
Instance 0 represents CIST.
cost cost
: Specifies the port path cost, ranging from 1 to 20000000.
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