A Comparison Between the Tunneling Process and Mapping Schemes for IPv4/IPv6 Transition

A number of transition mechanisms have been developed to support the interoperability between IPv4 and IPv6 during the time of migration from the existing IP version (IPv4) to the new IP version (IPv6). BDMS is one of the IPv4/IPv6 transition mechanisms that has been designed to enable IPv4-only hosts to communicate with IPv6-only hosts and vice versa; while DSTM has been designed to enable IPv6 hosts to communicate with IPv4-only hosts. In this paper, we present the impact of the mapping and translation processes of the BDMS transition mechanism compared with the tunneling process of the DSTM when a variety of traffic loads are used. Our simulation results show that the delay and throughput results of the BDMS are close to the results of the DSTM and direct-link connections when the number of connected nodes is small. This paper shows that the tunneling process in the DSTM has a significant impact on the performance evaluation metrics compared with the BDMS and direct-link connections when large traffic loads are used. All the simulation scenarios in this paper are performed using the OMNeT++ simulator platform.