H3C Technologies H3C S3100 Series Switches - Manual (Page 252)

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Configure port priority in system view
Follow these steps to configure port priority in system view:
To do... Use the command... Remarks
Enter system view
system-view
—
Configure port priority for
specified ports
stp interface interface-list
instance instance-id port
priority priority
Required
The default port priority is 128.
Configure port priority in Ethernet port view
Follow these steps to configure port priority in Ethernet port view:
To do... Use the command... Remarks
Enter system view system-view —
Enter Ethernet port view
interface interface-type
interface-number
—
Configure port priority for the
port stp [ instance instance-id ]
port priority priority
Required.
The default port priority is 128.
Changing port priority of a port may change the role of the port and put the port into state transition.
A smaller port priority value indicates a higher possibility for the port to become the root port. If all the
ports of a switch have the same port priority value, the port priorities are determined by the port indexes.
Changing the priority of a port will cause spanning tree recalculation.
You can configure port priorities according to actual networking requirements.
Configuration example
# Configure the port priority of Ethernet 1/0/1 in MSTI 1 to be 16.
1) Perform this configuration in system view
system-view
[Sysname] stp interface Ethernet 1/0/1 instance 1 port priority 16
2) Perform this configuration in Ethernet port view
system-view
[Sysname] interface Ethernet 1/0/1
[Sysname-Ethernet1/0/1] stp instance 1 port priority 16
Setting the Link Type of a Port to P2P
Refer to Setting the Link Type of a Port to P2P .
Enabling MSTP
Refer to Enabling MSTP .