Command Manual - STP
Quidway S3500 Series Ethernet Switches Chapter 1 MSTP Configuration Commands
Huawei Technologies Proprietary
1-17
Description
Using stp root secondary command, you can configure the current switch as the
secondary root bridge of a specified STI. Using undo stp root command, you can
cancel the current switch for the secondary root bridge of a specified STI. If user
doesn’t input parameter “instance instance-id“ when configuring switch, the
configuration will only be effective on CIST.
By default, the switch does not server as a secondary root bridge.
You can configure one or more secondary root bridges in an STI. If the primary root is
down or powered off, the secondary root will take its place. Among several secondary
root bridges, the one with the smallest MAC address takes the place of the failed
primary root.
When configuring the secondary root bridge, you may also specify the switching
network diameter and the Hello Time of the switch, so that the other two parameters,
Forward Delay and Max Age, of the switch can be determined. To configure the current
switch as the root bridge of CIST, simply specify instance-id as 0. You can configure
only one root bridge for an STI and one or more secondary root bridges for it.
After a switch is configured as primary root switch or secondary root switch, user can’t
modify the bridge priority of the switch.
Example
# Configure the current switch as the secondary root bridge of STI 4 and specify the
diameter of the switching network as 5 and the Hello Time of the switch as 300
centiseconds.
[Quidway] stp instance 4 root primary bridge-diameter 5 hello-time 300
1.1.18 stp interface
Syntax
stp interface interface-list { enable | disable }
View
System view
Parameter
interface-list: Ethernet port list, containing multiple Ethernet ports and expressed as
interface _list = { { interface_type interface_num | interface_name } [ to { interface_type
interface_num | interface_name } ] }&<1-10>. For detail descriptions of interface_type,
interface_num and interface_name parameters, refer to the corresponding descriptions
in Port Command Manual. &<1-10> means that the preceding parameters can be
entered up to 10 times.
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