Currently the Internet based on IP supports a single best-effort service in which, all packets are queued and forwarded with the same priority. No guarantees are made regarding timely and guaranteed delivery. However, many e-commerce applications, that are delay and loss sensitive, use the Internet as a transport infrastructure because of its reach-ability, and cost efficiency. Challenges faced by ISPs supporting ecommerce traffic include enhancing their traffic flow handling capabilities, speeding the processing of these packets at core routers, and incorporating Quality of Service (QoS) methods to differentiate between traffic flows. These schemes add to infrastructure costs of network providers which can be recovered by introducing extra charges for QoS enabled traffic. Many pricing schemes have been proposed for QoSenabled networks. However, integrated pricing and admission control has not been studied in detail. In this paper a dynamic pricing model is integrated with an IPv6 QoS manager to study the effects of increasing traffic flows rates on the increased cost of delivering high priority traffic flows. The pricing agent assigns prices dynamically calculated according to the network status for each traffic flow accepted by the domain QoS manager. Combining the pricing strategy with the QoS manager allows only higher priority traffic packets that are willing to pay more to be processed during congestion. This approach is flexible and scalable as pricing is decoupled from QoS decisions and reservations.
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