A scalable protocol architecture for end-to-end signaling and resource reservation in IP networks

This paper presents a concept of a scalable networking architecture with end-to-end QoS signaling and resource reservation support. It is a synthesis of both the Differentiated Services and the Integrated Services approach. The approach relies on end-to-end resource reservation and takes advantage of traffic aggregation to reduce the number of reservation states in the router MIBs. Signaling costs are further decreased by making overreservation, i.e. bandwidth efficiency is traded for signaling reduction. We give recommendations to dimension the degree of overreservation and compute the resulting tradeoff analytically. The numerical results show that networks running the proposed architecture can be operated efficiently in spite of overreservation.