Introduction of NDN with Comparison to Current Internet Architecture based on TCP/IP
Dnyanada P. Arjunwadkar · 2014
the years number of people using Internet has escalated. The primary motive of the Internet has been revised. To deal with this drastic change, network architecture has to be redesigned considering future trends. The future architecture of Internet can be developed only after scrutinizing various aspects of current Internet architecture. Thus study of strengths and weaknesses of existing architecture will guide the learners to build a robust future architecture of Internet. This paper represents comparative study of TCP/IP model of existing architecture and Name Data Networking approach of Content Centric Networking of proposed model. This paper discusses fundamental factors such as approaches to current and future architectural model, Packet formats and differences in security mechanisms of these models. once a video goes viral, it receives large number of requests from different parts of the world simultaneously. To be able to satisfy such high number of requests simultaneously, implementation of latest multicast algorithms is required. NDN architecture handles such situations effectively as it is multipoint to multipoint protocol unlike TCP/IP. Internet model of TCP/IP is based on the conversation between two machines. This conversation requires addresses of source and destination machine. Todays internet model is not best suited for information dissemination. The proposed model of NDN is implemented using Content Centric Networking approach. In this architecture the content is named. The objective of NDN architecture is to efficiently handle the issues that current internet architecture faces. This future architecture promises better utilization of bandwidth, aims to improve throughput and decrease the network traffic generated during the transfer of popular web content. In this paper detail comparison of existing TCP/IP model and proposed NDN model is given. This paper will aid the reader to comprehend fundamental differences between current internet architecture and future internet architecture. This Paper represents a comparison of two architectures in a simplified manner. It includes basic functioning approach and architectural components of both the systems. It emphasizes on distinguishing factors between TCP/IP and NDN model. Packet formats and Security implementations are also discussed in this paper. By the end of this paper reader will have a clear understanding of how these architectures differ.