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Implementing QoS with ACLs
As shown in Figure 3-3, NetworkA and NetworkB connect to NetworkC through the switch, all having different requirements for voice, video, and data services. For example, NetworkA has high requirements for video services. To ensure quality of video services on NetworkA, configure an ACL on the switch and reference the ACL in a traffic policy so that all the packets sent to NetworkA are processed by the switch before being forwarded. Packets from other networks are forwarded without Quality of Service (QoS) guarantee because no ACL is matched.
