Port Priority Configuration - Huawei Quidway S3100 Series Operation Manual

Operation Manual – MSTP
Quidway S3100 Series Ethernet Switches
Configure in Ethernet port view.
<Quidway> system-view
System View: return to User View with Ctrl+Z.
[Quidway] interface ethernet1/0/1
[Quidway-Ethernet1/0/1] undo stp instance 1 cost
[Quidway-Ethernet1/0/1] quit
[Quidway] stp pathcost-standard dot1d-1998

1.3.8 Port Priority Configuration

Port priority is an important criterion on determining the root port. In the same condition,
a port with higher port priority is more potential to become the root port than another
port with lower priority.
A port on a MSTP-enabled switch can have different port priorities and play different
roles in different spanning tree instances. This enables packets of different VLANs to be
forwarded along different physical paths, so that load balancing can be achieved by
VLANs.
You can configure port priority in the following two ways.
I. Configuring port priority in system view
Table 1-25 Configure port priority for specified ports in system view
Operation
Enter system view
Configure
priority
specified ports
II. Configuring port priority in Ethernet port view
Table 1-26 Configure port priority for a specified port in Ethernet port view
Operation
Enter system view
Enter Ethernet port
view
Configure
priority for the port
Changing port priority of a port may change the role of the port and put the port into
state transition.
Command
system-view
port
stp interface interface-list
for
instance instance-id port
priority priority
Command
system-view
interface interface-type
interface-number
port stp [ instance instance-id ]
port priority priority
Huawei Technologies Proprietary
1-29
Chapter 1 MSTP Configuration
Description
—
Required
The default port priority is 128.
Description
—
—
Required.
The default port priority is 128.