Dell S4048-ON - Applying DSCP and VLAN Match Criteria on a Service Queue

Applying DSCP and VLAN Match Criteria on a Service
Queue
You can congure Layer 3 class maps which contain both a Layer 3 Dierentiated Services Code Point (DSCP) and IP VLAN IDs as match
criteria to lter incoming packets on a service queue on the switch.
To congure a Layer 3 class map to classify trac according to both an IP VLAN ID and DSCP value, use the match ip vlan vlan-id
command in class-map input conguration mode. You can include the class map in a policy map, and apply the class and policy map to a
service queue using the service-queue command. In this way, the system applies the match criteria in a class map according to queue
priority (queue numbers closer to 0 have a lower priority).
To congure IP VLAN and DSCP match criteria in a Layer 3 class map, and apply the class and policy maps to a service queue:
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. 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 conguration mode.
CONFIGURATION mode
Dell(conf)#class-map match-all pp_classmap
2 Congure a DSCP value as a match criterion.
CLASS-MAP mode
Dell(conf-class-map)#match ipdscp 5
3 Congure an IP VLAN ID as a match criterion.
CLASS-MAP mode
Dell(conf-class-map)#match ip vlan 5
4 Create a QoS input policy.
CONFIGURATION mode
Dell(conf)#qos-policy-input pp_qospolicy
5 Congure the DSCP value to be set on matched packets.
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)