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You can modify traffic classes, traffic behaviors, and c lass-behavior associations in a Q oS policy 
even after it is applied. If a traffic class uses an ACL for traffic classification, you can delete or modify 
the ACL. 
Applying the QoS policy to an interface 
A QoS policy can be applied to multiple interfaces. However, only one QoS policy can be applied to 
one direction (inbound or outbound) of an interface. 
The QoS policy applied to the outgoing traffic on an interface does not regulate local packets. Local 
packets refer to critical protocol packets sent by the local system for operation maintenance. The 
most common local packets include link maintenance, RIP, and SSH packets. 
To apply a QoS policy to an interface: 
 
1.  Enter system view. 
system-view 
N/A 
2.  Enter interface view. 
interface
 interface-type interface-number
 
N/A
 
3.  Apply the QoS policy to 
the interface. 
qos apply policy
 policy-name { 
inbound
 | 
outbound
 }
 
By default, no QoS policy is 
applied to an interface. 
 
Applying the QoS policy to a user profile 
The following matrix shows the feature and hardware compatibility: 
 
WX1800H series 
WX1804H 
WX1810H 
WX1820H 
Yes 
WX2500H series 
WX2510H 
WX2540H 
WX2560H 
Yes 
WX3000H series 
WX3010H 
WX3010H-L 
WX3010H-X 
WX3024H 
WX3024H-L 
No 
WX3500H series 
WX3508H 
WX3510H 
WX3520H 
WX3540H 
Yes 
WX5500E series 
WX5510E 
WX5540E 
Yes 
WX5500H series 
WX5540H 
WX5560H  
WX5580H 
Yes 
Access controller modules  EWPXM1MAC0F  Yes