Scalability and QoS guarantee in IP networks

This paper presents our insights to the issue of achieving scalability and providing QoS guarantee in IP networks. The key idea is to use marking at the edge and aggregation in the core of a network. We propose a traffic classification scheme to facilitate marking and aggregation, a queueing architecture to implement marking in the access routers and aggregation in the core routers, and a scheduling algorithm to provide throughput guarantee. Performance analysis is conducted to evaluate our proposed schemes.