Stp Priority - H3C MSR 20-20 Command Reference Manual

620 C 38: MSTP C
HAPTER
Examples

stp priority

Syntax
View
Parameters
Description
Examples
C
ONFIGURATION OMMANDS
If you set instance-id to 0, you are setting the priority of the port in the CIST.
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The priority of a port can affect the role selection of the port in the specified
MST instance.
Setting different priorities for the same port in different MST instances allows
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different VLAN traffic flows to be forwarded along different physical links, thus
to enable per-VLAN load balancing.
When the priority of a port is changed, MSTP will re-compute the role of the
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port and initiate a state transition.
If you do not provide instance instance-id, your configuration will take effect
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in the CIST instance only.
# Set the priority of port Ethernet 1/3 in MST instance 2 to 16.
<Sysname> system-view
[Sysname] interface Ethernet 1/3
[Sysname-Ethernet1/3] stp instance 2 port priority 16
stp [ instance instance-id ] priority priority
undo stp [ instance instance-id ] priority
System view
instance instance-id: Sets the priority of the current port(s) in a particular
spanning tree instance. The minimum value of instance-id is 0, representing the
CIST, and the maximum value of instance-id is 15.
priority: Port priority, in the range of 0 to 61440 at the step of 4096, namely you
can set up to 16 priority values, such as 0, 4096, 8192..., on the device.
Use the
stp priority
Use the
undo stp priority
setting.
By default, the device priority is 32768.
The device priority is involved in spanning tree computing. The device priority is set
on a per-instance basis. An MSTP-compliant device can have different priorities in
different MST instances.
If you do not provide instance instance-id, your configuration will take effect in
the CIST instance only.
# Set the device priority in MST instance 1 to 4096.
<Sysname> system-view
[Sysname] stp instance 1 priority 4096
command to set the priority of the device.
command to restore the device priority to the default