New MPLS Switch Architecture Supporting Diffserv for High_Speed Switching and QoS

摘要

We propose a new architecture of the MPLS switch supporting Differentiated Services in the MPLS-based network. The traffic conditioner consists of a classifier, a meter, and a marker. The VOQ-PHB module which combines input queue with each PHB queue is implemented to utilize the resources more efficiently, employing the Priority-iSLIP scheduling algorithm to support high-speed switching. The proposed MPLS switch architecture is modeled by C++ and synthesized by Very High Speed Integrated Circuits Hardware Description Language(VHDL), verified and then implemented by commercialized CAD tools to justify the validity of the proposed hardware architecture.