Configure The Priority Of A Port - Huawei Quidway S3000 Series Operation Manual

Operation Manual - STP
Quidway S3000 Series Ethernet Switches
Table2-15 Configure the Path Cost of a port
Configure the Path Cost of a port
Restore the default path cost of a port.
You can configure the path cost of a port with either of the above-mentioned measures.
For more about the commands, refer to the Command Manual.
Upon the change of path cost of a port, MSTP will recalculate the port role and transit
the state. When instance-id takes 0, it indicates to set the path cost on the CIST.
By default, MSTP is responsible for calculating the port path cost.

2.2.11 Configure the Priority of a Port

For spanning tree calculation, the port priority is an importance factor to determine if a
port can be elected as the root port. With other things being equal, the port with the
highest priority will be elected as the root port. On the MSTP switch, a port can have
different priorities in different STIs and plays different roles respectively. Thus the traffic
from different VLANs can run over different physical links, thereby implementing the
VLAN-based load-balancing.
You can configure the port priority in the following ways.
I. Configure in system view
Perform the following configuration in system view.
Table2-16 Configure the port priority
Configure the port priority.
Restore the default port priority.
II. Configure in Ethernet port view
Perform the following configuration in Ethernet port view.
Operation
Operation
stp interface interface-list [ instance instance-id ] port priority
priority
undo stp interface interface-list [ instance instance-id ] port
priority
stp [ instance instance-id ] cost cost
undo stp [ instance instance-id ] cost
Command
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Chapter 1 RSTP Configuration
Command