H3C WX1804H - Changing the Port Priority of an Interface; Displaying and Maintaining Priority Mapping; Priority Mapping Configuration Examples; Network Requirements

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To configure the trusted packet priority type on an interface:
Step Command Remarks
1. Enter system view.
system-view
N/A
2. Enter interface view.
interface
interface-type
interface-number
N/A
3. Configure the trusted
packet priority type.
qos trust
{
dot1p
|
dscp
} By default, the port priority is trusted.
Changing the port priority of an interface
If an interface does not trust any packet priority, the device uses its port priority to look for priority
parameters for the incoming packets. By changing port priority, you can prioritize traffic received on
different interfaces.
To change the port priority of an interface:
Step
Command
Remarks
1. Enter system view.
system-view
N/A
2. Enter interface view.
interface
interface-type
interface-number
N/A
3. Set the port priority of the
interface.
qos priority
priority-value The default setting is 0.
Displaying and maintaining priority mapping
Execute display commands in any view.
Task
Command
Display priority map configuration.
display qos map-table
[
dot11e-lp
|
dot1p-lp
|
dscp-lp
|
lp-dot11e
|
lp-dot1p
|
lp-dscp
]
Display the trusted packet priority
type on a port.
display qos trust interface
[ interface-type interface-number ]
Priority mapping configuration examples
Network requirements
As shown in Figure 5:
• The IP precedence of traffic from Device A to the AC is 3.
• The IP precedence of traffic from Device B to the AC is 1.
Configure the AC to preferentially process packets from Device A to the server when GigabitEthernet
1/0/3 of the AC is congested.