Research And Design Of MPLS Forwarding Based On IXP2400 Network Processor

This theme comes from the practical project during practicing in Harbour network limited corporation.With the rapid developing of the Internet, the link rate of the network increases continually while new protocols and services are being developed. These give a higher requirment on network devices. However, a traditional network device based on CPU is implemented by software. It has a high flexibility but has a low performance. And then ASIC technology comes forth which has a high performance but lack of flexibility. Both of technologies could not meet the requirements on speed and flexibility simultaneously. So a programmable network processor is created to overcome this obstacle. It has the characteristic of hardware and software solution coinstantaneous and will be widely used in the next generation networking. Therefore, the item is aimed to solve this problem.The theme adequately use multi_thread mechanism, distributed buses and distributed cache technique provided by IXP2400 based on analyze the basic theory of MPLS and hardware framework. Design the hardware framework and software structure of MPLS router and the data structure needed in system by analyze the forwarding process of MPLS. Finally, implement the functions of every module of the forwarding layer.At present, the system is performed well in markets.