29 
Figure 4 QoS policy configuration procedure 
 
Define a class
Define a behavior
Define a policy
Apply the policy
Apply the 
policy to an 
interface or 
PVC
Apply the 
policy to 
online 
users
 
 
Defining a class 
To define a class, specify its name and then configure the match criteria in class view.  
Follow these steps to define a class: 
Create a class and enter 
class view
 
traffic classifier tcl-name 
[ operator { and | or } ] 
Required 
By default, the operator of a 
class is AND. 
The operator of a class can 
be AND or OR. 
 
  AND: A packet is assigned 
to a class only when the 
packet matches all the 
criteria in the class.  
  OR: A packet is assigned to 
a class if it matches any of 
the criteria in the class.