H3C Technologies H3C S12500 Series Switches - Manual (Page 44)

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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 the set of
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 or port group
view.
• Enter interface view:
interface interface-type interface-number
• Enter port group view:
port-group manual port-group-name
Use either command.
Settings in interface view (Ethernet or
WLAN-ESS) take effect on the current
interface. Settings in port group view
take effect on all ports in the port
group.
3. Set the port
priority of the
interface.
qos priority { dot1p | dp | dscp | exp | lp }
priority-value
The default is 2 for local precedence
and 0 for drop precedence. The other
priorities do not have defaults.
Configuring primap
By configuring a primap behavior and associating it with a traffic class, you can re-assign priority
parameters for the traffic class according to the specified priority mapping table.
Configuring uncolored primap
Step Command
1. Enter system view. system-view
2. Create a class and enter class view. traffic classifier tcl-name [ operator { and | or } ]
3. Configure match criteria. if-match match-criteria
4. Return to system view. quit
5. Create a traffic behavior and enter traffic
behavior view.
traffic behavior behavior-name
6. Configure the action of assigning priority
values to packets using a specified priority
mapping table. primap pre-defined dscp-dscp
7. Return to system view. quit
8. Create a policy and enter policy view. qos policy policy-name
9. Associate the traffic behavior with the class. classifier tcl-name behavior behavior-name
10. Return to system view. quit