Design And Implementation Of Network Switch Based On Domestic Chips

With the increasing development of information technology,cyberspace has become the "fifth territory" of the country.Like land,sea,air and space,cyberspace also needs to reflect national sovereignty.Ensuring the security of cyberspace is to ensure national sovereignty.Among them,"independent controllable" is a basic requirement to ensure the security of national cyberspace.It can ensure the security of network infrastructure and the controllability of supply chain,prevent the enemy from invading cyberspace through preset back doors,and prevent the enemy from cutting off the supply chain and threatening the production of relevant equipment.It is the premise that our national network development is not controlled by others.Network switch is an important part of cyberspace infrastructure.It is the basic platform for information and data transmission and exchange.Its inherent security determines the underlying security of cyberspace.The object of this thesis is the design and implementation of network switch based on domestic chips.On the basis of the research on the main principle and function of the network switch of the imported platform,and according to the component parameters of the existing domestically produced switching chips,a network switch with 24 channels of 1000 BASE-T interface based on the domestically produced chip is designed,and the functions have expanded.Firstly,this thesis introduces the background and significance of the research on localized network switches,and explains the current research progress and direction;Secondly,the realization scheme of "data detection window" integrating data monitoring and testing is presented;Thirdly,the software architecture and main functions supported by domestic network switches are introduced;finally,the domestic network switches are tested,including the consistency of Ethernet physical layer test,data exchange performance test and basic function test,all other functional performance indicators meet the requirements of IEEE 802.3 related technical standards,except that the peak test in the Ethernet physical layer conformance test is affected by the configuration of the domestic PHY chip and fails to meet the standard.