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Internet users are able to reach any server from any access point at any time due to the interconnection and the exchange of IP traffic between about 40,000 different Autonomous Systems. The underlying business model for traffic exchange generates concerns among the network service providers (NSPs), resulting in deadlocks that are challenging the internet ecosystem. We introduce the Sending Party Network Pays (SPNP) model and demonstrate why this model can be considered to be a prerequisite to the deployment of QoS. We also outline ecosystem issues that can be addressed through this model and discuss its limitations.
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