QoS in the First Mile

Networks worldwide can be characterized primarily by two parameters: the quantity of service and the quality of service. The quantity of service is the net throughput (goodput) offered by the network, whereas the quality of service (QoS) is a set of parameters that characterize class of the throughput that is offered. In internetworks today, the QoS of a traffic stream often determines the revenue-earning capability of the network (for example video, real-time applications, and so forth) Internet Protocol (IP) by itself is a best-effort service paradigm, which creates several anomalies in network communication. Among these are the delay associated in a stream of packets in a flow, the basic minimum throughput of a flow over ...

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