Application Scenarios for HQoS
As shown in Figure 6-2, site 1 is the headquarters, and sites 2 and 3 are two departments. The departments and headquarters are connected by two links. Each department has voice, video, and data service flows.
Each department requires the assured bandwidth and can share the maximum bandwidth of an interface. Voice packets need to be sent first and bandwidth needs to be ensured for video and data packets.
To meet the preceding requirements, configure HQoS in the outbound direction of the WAN-side interface. Configure traffic policy nesting on the interface. The traffic classifier in the traffic policy differentiates users, that is, user queues. The traffic classifier in the sub traffic policy differentiates services, that is, flow queues. CBQ provides EF queues to send voice packets first and AF queues to ensure bandwidth.