Command Manual – STP
Quidway S8500 Series Routing Switches Chapter 1
MSTP Configuration Commands
Huawei Technologies Proprietary
1-36
You can enter MST region view, using the stp region-configuration command. Then
you can configure the parameters including region name, revision level, and VLAN
mapping table of the region.
Example
# Enter MST region view.
<Quidway>system-view
System View: return to User View with Ctrl+Z.
[Quidway] stp region-configuration
[Quidway-mst-region]
1.1.35 stp instance root secondary
Syntax
stp [ instance instance-id ] root secondary [ bridge-diameter bridgenum ]
[ hello-time centi-senconds ]
undo stp [ instance instance-id ] root
View
System view
Parameter
instance instance-id: Specifies the spanning tree instance ID, ranging from 0 to 48.
Specify it as 0 to configure CIST.
root secondary: Configures the current switch as the secondary root of the designated
MSTI.
bridge-diameter bridgenum: Specifies the network diameter of the spanning tree,
ranging from 2 to 7.
hello-time centi-senconds: Specifies the Hello Time of the spanning tree, which is in
the range from 100 to 1000 and is measured in centiseconds.
Description
Use the stp root secondary command to configure the current switch as the
secondary root bridge of a specified MSTI.
Use the undo stp root command to cancel the current switch for the secondary root
bridge of a specified MSTI.
Only when the instance-id parameter is set to 0, can its following parameters take
effect.
By default, the switch does not server as a secondary root bridge.
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