Micro Communications System Architecture Design And Implementation Of The Connection Service On The Host

At the present time,the practical network structures are all layered architecture,and TCP/IP dominates the internet. TCP/IP was developed for narrowband text transfer.Now,with the rapid development of global internet,people avail the network and depend on it more and more, but because of the original designing mechanism,the layered architecture can't satisfy peoples demand correspondingly,and the disadvantage of TCP/IP becomes obvious in such cases.Now the are two research ways on the network architectures,one is to mend on the TCP/IP,which can't solve the problem because it still works on the layered archicture.The other one is to study new architecture ,that is the radical way to solve the problem.This paper introduces a Service Unit based Network Architecture (SUNA),mainly analyse the features of the structure , then the Micro Communication Element System (MCES) is educed ,that is the first network system instance presented for SUNA.The emphases of this paper is the introduction of the design and realization of the connectionless service on the host, which is based on the MCES.In the paper,we describe several aspects of the connectionless service carefully,including the UDP packet , the model of the connectionless service on the MCES and the main system calls in the connectionless service . We also discusse how to add a new system call in Linux and expanding the traditional system calls.At last, we provide the testing data,from that we summarize the MCES characters ,and give the advices for later work.The connectionless service's design and realization is a helpful reference for our later task to adding new network functions in the MCES.