ACL-based traffic groups are introduced in
          ACL-Based Traffic Groups. An ACL can implement
        multiple QoS features, so it is usually best to finalize the
        ACL after all other features have been configured.
      To configure an ACL-based traffic group, do the following:
    
    - 
        Create an ACL policy file and add rules to the
file using the following guidelines:
        
          - 
            Use ACL match conditions to identify the
traffic for the traffic group.
          
 
          - 
            Use ACL action modifiers to apply QoS features such
as ingress meter or traffic queue selection, egress QoS profile
or traffic queue selection, and 802.1p priority replacement to the
traffic group.
          
 
        
       - 
        Apply the ACL policy file to the ports where you want to
          define the traffic groups. You can apply the file to specific ports, all ports, or all
          ports in a VLAN.
      
 
    
      
Note   
ACLs are described in detail in the 
ACLs chapter.