F3726, F3211, F3174, R5135, R3816-HP Firewalls and UTM Devices Network Management Command Reference-6PW100

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Parameters
instance instance-id: Configures the device as the root bridge in a particular MSTI. For the value range
for instance-id, see "instance." 0 r
epresents the CIST.
Usage guidelines
To set an MSTP device as the root bridge in a specific MSTI, use this command with the MSTI specified.
To set an MSTP device in the CIST or an STP or RSTP device as the root bridge, use this command without
specifying any MSTI.
Once you specify the device as the root bridge, you cannot change the priority of the device.
Examples
# In MSTP mode, specify the device as the root bridge of MSTI 1.
<Sysname> system-view
[Sysname] stp instance 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-id ] root secondary
undo stp [ instance instance-id ] root
Default
A device is not a secondary root bridge.
Views
System view
Default command level
2: System level
Parameters
instance instance-id: Configures the device as a secondary root bridge in a particular MSTI. For the value
range for instance-id, see "instance." 0 r
epresents the CIST.
Usage guidelines
To set an MSTP device as a secondary root bridge in a specific MSTI, use this command with the MSTI
specified. To set an MSTP device in the CIST or an STP or RSTP device as a secondary root bridge, use
this command without specifying any MSTI.
Once you specify the device as a secondary root bridge, you cannot change the priority of the device.
Examples
# In MSTP mode, specify the device as a secondary root bridge in MSTI 1.
<Sysname> system-view