1-33 
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 
<Sysname> system-view 
[Sysname] stp interface Ethernet 1/0/1 instance 1 port priority 16 
2)  Perform this configuration in Ethernet port view 
<Sysname> 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.