Research On Simulation And Performance Evaluation Of Data Communication Based Network Architecture

The first Internet network architecture focused strictly on host-to-host communication: The user explicitly directed the source to communicate with another host, and the network's only role was to carry packets to the destination address in the packet header. So it is well-suited for communication between pairs of stationary hosts. Today, however, the vast majority of Internet usage is data retrieval and service access, where the user cares about content and is oblivious to location. The current architecture can support this functionality, as is obvious from its prevalence on the Internet, but it does not fit comfortably within the host-to-host model.Our research suggests that most of the necessary changes reside in how Internet names are structured and resolved. We propose replacing DNS names with flat, self-certifying names, and replacing DNS name resolution with a name-based anycast primitive that lives above the IP layer. We call the resulting design the Data-Oriented Network Architecture (DONA).Compared to traditional Internet, DONA has better persistence, availability and authenticity in data transmission and service access. And it also supports data cache in network layer well.In DONA, data naming is self-certifying. Relieved of the burden of securing a path or setting up a PKI, the network can focus on maximizing persistence and availability.In the paper, virtual router technology is used to implement data routing module, which makes DONA more flexible and easy to be deployed on the current network environment.At last, NS2 is used to simulate and evaluate the performance of data transmission in DONA network, and PlanetLab is used to measure the burden of virtual router implementing RH. Through some Internet data, we analysis the feasibility of DONA deployed on current Internet, to prove that DONA is the future of Internet.