6-3 
To do...  Use the command...  Remarks 
Drop or send packets 
 
filter 
{ 
deny
 | 
permit
 }
 
Optional 
To drop matching packets, select the 
deny
 
keyword. To permit matching packets to 
pass through, select the 
permit
 keyword. 
Set the local precedence 
for packets 
remark local-precedence
 
local-precedence
 
Optional 
Set the 802.1p priority 
for packets 
remark dot1p
 8021p
 
Optional 
Display traffic behavior 
configuration 
information
 
display traffic behavior 
user-defined
 [ behavior-name ]
 
Optional 
Available in any view 
 
Defining a QoS Policy and Applying the QoS Policy to an Interface 
A policy applied to an interface takes effect on the traffic sent or received by the interface.  
A policy can be applied to multiple interfaces, but only one policy can be applied in one direction 
(inbound or outbound) of an interface.  
Follow these steps to apply the QoS policy to an interface: 
To do...  Use the command...  Remarks 
Enter system view 
system-view 
— 
Define a QoS policy and enter QoS 
policy view 
qos policy
 policy-name
 
Required 
Associate a class with a behavior 
in the QoS policy 
classifier
 tcl-name 
behavior
 
behavior-name
 
Required 
Repeat this step to create more 
class-behavior associations.  
Enter interface view 
interface
 interface-type 
interface-number 
— 
Apply the policy to the interface 
qos apply policy
 policy-name 
{ 
inbound
 | 
outbound
 } 
Required 
 
 
The QoS policy applied to the outgoing traffic of an interface does not regulate local packets. Local 
packets refer to the critical protocol packets sent by the local system for maintaining the normal 
operation of the AP. To avoid drop of local packets, QoS does not process them. Commonly used local 
packets are link maintenance packets and so on. 
 
Displaying and Maintaining QoS Policies 
To do...  Use the command...  Remarks 
Display traffic class information
 
display traffic classifier
 
user-defined
 [ tcl-name ]
 
Available in any view