Dell C1048P Port Extender Networking Configuration Guide for the C9000 Series - Page 741

Dell#show run qos-policy-output ! qos-policy-output VoIP_Q scheduler strict Honoring the Incoming dot1p Value If you know that traffic originating from the phone is tagged with a dot1p value of 5, you can make the associated queue a strict-priority queue, as shown in the following example. Dell#show run int gi 0/6/10 ! interface GigabitEthernet 0/6/10 description "IP Phone X" no ip address portmode hybrid switchport service-class dynamic dot1p service-policy output Strict_Q power inline no shutdown ! Classifying VoIP Traffic and Applying QoS Policies You can avoid congestion and give precedence to voice and signaling traffic by classifying traffic based on the subnet and using strict priority and bandwidth weights on egress, as outlined in the following steps. The following figure depicts the topology and configuration for a C9000 system. Figure 114. PoE VoIP Traffic Power over Ethernet (PoE) 741