Users Guide

Policy-Based QoS Congurations
Policy-based QoS congurations consist of the components shown in the following example.
Figure 111. Constructing Policy-Based QoS Congurations
Classify Trac
Class maps dierentiate trac so that you can apply separate quality of service policies to dierent types of trac.
For both class maps, Layer 2 and Layer 3, Dell Networking OS matches packets against match criteria in the order that you congure
them.
Creating a Layer 3 Class Map
A Layer 3 class map dierentiates ingress packets based on the DSCP value or IP precedence, and characteristics dened in an IP
ACL. You can also use VLAN IDs and VRF IDs to classify the trac using layer 3 class-maps.
You may specify more than one DSCP and IP precedence value, but only one value must match to trigger a positive match for the
class map.
NOTE: IPv6 and IP-any class maps cannot match on ACLs or VLANs.
Use step 1 or step 2 to start creating a Layer 3 class map.
1. Create a match-any class map.
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Quality of Service (QoS)