IPv6 protocol plays an important role in the next generation of Internet (NGI). It is expected that the elegant coexistence of IPv4 and IPv6 is the key point of IPv6 transition. To solve the transition problem, we p...IPv6 protocol plays an important role in the next generation of Internet (NGI). It is expected that the elegant coexistence of IPv4 and IPv6 is the key point of IPv6 transition. To solve the transition problem, we propose a mesh unicast framework and a multicast framework in this paper. We describe two reference models for the mesh unicast framework, and put forward two potential solutions for the multicast framework. A Linux-based prototype is implemented for IPv4 over IPv6 scenario and a test bed is deployed with 8 nodes on CERNET2. The deployment demon- strates the advantages of the framework.展开更多
基金the National Basic Research Program of China (Grant No. 2003CB314801)the National High-Tech Research & Development Program of China (Grant No. 2006AA01Z205)the National Natural Science Foundation of China (Grant Nos. 90604024 and 90704001)
文摘IPv6 protocol plays an important role in the next generation of Internet (NGI). It is expected that the elegant coexistence of IPv4 and IPv6 is the key point of IPv6 transition. To solve the transition problem, we propose a mesh unicast framework and a multicast framework in this paper. We describe two reference models for the mesh unicast framework, and put forward two potential solutions for the multicast framework. A Linux-based prototype is implemented for IPv4 over IPv6 scenario and a test bed is deployed with 8 nodes on CERNET2. The deployment demon- strates the advantages of the framework.