Dell Z9000 Configuration Manual page 668

All class maps are Layer 3 by default. You can now configure a Layer 3 class map to differentiate traffic
according to the IP VLAN value and the DSCP value. You can use the match ip vlan vlan-id
command in Class Map Input Configuration mode to specify a match criterion for a class map based on a
VLAN ID. You can attach this class map with a policy map, and associate the policy map with a service
queue. When you link class maps to queues using the service-queue command, Dell Networking OS
matches the class-maps according to queue priority (queue numbers closer to 0 have lower priorities).
To create IP VLAN and DSCP values as match criteria in a Layer 3 class map, and to associate the class
map with a policy map that is linked to a service queue, perform the following:
1. Create a match-any or a match-all Layer 3 class map, depending on whether you want the packets
to meet all or any of the match criteria to be a member of the class. By default, a Layer 3 class map is
created if you do not enter the layer2 option with the class-map command. When you create a class
map, you enter the Class Map configuration mode.
CONFIGURATION mode
Dell (conf)#class-map match-all pp_classmap
2. Use a DSCP value as a match criterion.
CLASS-MAP mode
Dell (conf-class-map)#match ipdscp 5
3. Configure a match criterion for a class map based on the VLAN ID.
CLASS-MAP mode
Dell (conf-class-map)#match ip vlan 5
4. Create a QoS input policy on the device.
CONFIGURATION mode
Dell(conf)#qos-policy-input pp_qospolicy
5. Specify the DSCP value to be set on the matched traffic.
QOS-POLICY-IN mode
Dell(conf-qos-policy-in)#set ip-dscp 5
6. Create an input policy map.
CONFIGURATION mode
Dell(conf)#policy-map-input pp_policmap
7. Create a service queue to associate the class map and QoS policy map.
POLICY-MAP mode
Dell(conf-policy-map-in)#service-queue 0 class-map pp_classmap qos-policy
pp_qospolicy
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Quality of Service (QoS)