In part one of this series on QoS we determined that QoS was the differential treatment of the voice, video, and data packets that flow on the IP network, creating a system of managed unfairness. QoS technologies allow different types of traffic to contend inequitably for network resources. Time-sensitive applications, such as voice or interactive video packets, can be given priority over data applications.
In this post we’ll examine the three different models of QoS that are supported in Cisco IOS software.
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