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undo stp [ instance instance-list | vlan vlan-id-list ] root
Default
The device is not a root bridge.
Views
System view
Predefined user roles
network-admin
Parameters
instance instance-list: Specifies a space-separated list of up to 10 MSTI items. Each item
specifies an MSTI or a range of MSTIs in the form of
instance-id1 [ to instance-id2 ]. The
value for
instance-id2 must be equal to or greater than the value for instance-id1. The
value range for the
instance-id argument is 0 to 4094, and the value 0 represents the CIST.
vlan vlan-id-list: Specifies a space-separated list of up to 10 VLAN items. Each item
specifies a VLAN or a range of VLANs in the form of
vlan-id1 [ to vlan-id2 ]. The value for
vlan-id2 must be equal to or greater than the value for vlan-id1. The value range for the
vlan-id argument is 1 to 4094.
Usage guidelines
Once you specify the device as the root bridge, you cannot change the priority of the device.
If you do not specify an MSTI or VLAN, this command configures the device as the root bridge of the
MSTP CIST or of the STP or RSTP spanning tree.
Examples
# In MSTP mode, specify the device as the root bridge of MSTI 1.
<Sysname> system-view
[Sysname] stp instance 1 root primary
# In PVST mode, specify the device as the root bridge of VLAN 1.
<Sysname> system-view
[Sysname] stp vlan 1 root primary
Related commands
stp priority
stp root secondary
stp root secondary
Use stp root secondary to configure the device as a secondary root bridge.
Use
undo stp root to restore the default.
Syntax
stp [ instance instance-list | vlan vlan-id-list ] root secondary
undo stp [ instance instance-list
| vlan vlan-id-list ] root
Default
The device is not a secondary root bridge.
Views
System view
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