Stp Interface Port Priority - Huawei quidway s3526 series Getting Started

Command Manual - STP
Quidway S3500 Series Ethernet Switches

1.1.21 stp interface port priority

Syntax
stp interface interface-list [ instance instance-id ] port priority priority
undo stp interface interface-list [ instance instance-id ] port priority
View
System view
Parameter
interface-list: Ethernet port list, containing multiple Ethernet ports and expressed as
interface _list = { { interface_type interface_num | interface_name } [ to { interface_type
interface_num | interface_name } ] }&<1-10>. For detail descriptions of interface_type,
interface_num and interface_name parameters, refer to the corresponding descriptions
in Port Command Manual. &<1-10> means that the preceding parameters can be
entered up to 10 times.
instance-id: Specifies the spanning tree instance ID, ranging from 0 to 16, instance 0 is
CIST.
port priority priority: Specifies the port priority, ranging from 0 to 240 with a step length
of 16, e.g., 0, 16 and 32. By default, the port has a priority of 128 on every STI.
Description
Using stp interface port priority command, you can configure the priority of the
specified port on the specified STI in system view. Using undo stp interface port
priority command, you can restore the default priority. If user doesn't input parameter
"instance instance-id" when configuring switch, the configuration will only be effective
on CIST.
You may specify the instance-id parameter as 0 to configure CIST priority of the port.
The port priority has effect on the port role selection. A port can be configured with
different priorities on different MSTIs. Thus the traffic from different VLANs can run over
different physical links, thereby implementing the VLAN-based load-balancing. MSTP
will recalculate the port role and transit its state, upon the port priority changes.
For the related command, see stp port priority.
Example
# Set the priority of Ethernet 0/3 on STI 2 to 16 in system view.
[Quidway] stp interface ethernet 0/3 instance 2 port priority 16
Huawei Technologies Proprietary
1-21
Chapter 1 MSTP Configuration Commands