Integrated services to differentiated services packet forwarding: guaranteed service to expedited forwarding PHB

This paper outlines the design and simulation of a packet forwarding algorithm between integrated services and differentiated services network domains. The algorithm forward packets from guaranteed class-of-service flows into the expedited forwarding PHB. The algorithm is assumed to be implemented in a pipelined processor configuration that separate the input and output packet processing functions. The remaining jitter value is used to determine the packet forwarding priority. Measures of throughput and ratio of packet loss are given. From the simulation we learned that this algorithm yields to good packet throughput and tolerable packet loss ratio.