Dell EMC SmartFabric OS10 User Guide Release 10.5.0

ACL-based classification

Classify the ingress traffic by matching the packet fields using ACL entries.

Classify the traffic flows based on QoS-specific fields or generic fields, using IP or MAC ACLs. Create a class-map template to match the fields.

OS10 allows matching any of the fields or all the fields based on the match type you configure in the class-map.

Use the access-group match filter to match MAC or IP ACLs. You can configure a maximum of four access-group filters in a class-map:

• 802.1p CoS
• VLAN ID (802.1.Q)
• DSCP + ECN
• IP precedence

OS10 supports configuring a range of or comma-separated values of match filters, except for VLAN ID. When you apply the same match filter with new values, the system overwrites the previous values with the new values.

Configure ACL based classification

1. Create a class-map of type qos.

   OS10(config)# class-map type qos example-cmap-cos

2. Define the field to match:

   OS10(config-cmap-qos)# match cos 3

3. Create a qos-type policy-map to refer the classes to.

   OS10(config)# policy-map type qos example-pmap-cos

4. Refer the class-maps in the policy-map and define the required action for the flows.

   OS10# configure terminal
   OS10(config)# class-map type qos example-cmap-cos
   OS10(config-cmap-qos)# match cos 3
   OS10(config-cmap-qos)# exit
   OS10(config)# policy-map type qos example-pmap-cos
   OS10(config-pmap-qos)# class example-cmap-cos
   OS10(config-pmap-c-qos)# set qos-group 3

5. Apply the qos-type policy-map globally or to an interface. In this example, the policy-map is applied to an interface.

   OS10# configure terminal
   OS10(config)# interface ethernet 1/1/14
   OS10(conf-if-eth1/1/14)# service-policy input type qos example-pmap-cos

If the traffic that arrives at the interface matches the 802.1p criteria that you have configured, it is assigned to TC 3 or qos group 3.