Traffic Prioritization Subject to Cost
Magnus Ekstrand · 1999
In order to carry real-time traffic like video, IP networks—especially intranets—recently began to deal with different levels of priority for communication flows. Traffic prioritization is the key to meeting the demands of real-time traffic, which are much more stringent than mere data traffic, such as file transfers. Now that the question: “How should we specify different levels of priority?” is reasonably understood, the challenge is to answer this new one: “How should we charge for these different levels of priority?” This document discusses the introduction of Quality of Service (QoS) in the corporate network of a large industrial enterprise. Its main contributions are a charging model for different types of traffic with different levels of priority, and a network simulation for verifying the impact of a QoS implementation.