The Open Systems Interconnection model (OSI model) is a product of the Open Systems Interconnection effort at the International Organization for Standardization. It is a way of sub-dividing a communications system into smaller parts called layers. A layer is a collection of co...
1 Network Access/Link Layer 网络接口层 2 Internet Layer: 网络层 It defines the protocols which are responsible for logical transmission of data over the entire network. IP –stands for Internet Protocol and it is responsible for delivering packets from the source host to the destination host by ...
LAN Local Area Network 特点:覆盖地理范围小,使用专门的传输介质,通信延迟时间短,各站为平等关系,共享传输信道,各站平等关系,广播信道 拓补结构: 局域网介质访问控制的方法 使用CSMA/CD:适用于总线型局域网 令牌总线:适用与总线型局域网,将总线型网络中的各个工作站按照顺序排列好发送 令牌环:适用于环型局域网 局...
providing a theoretical underpinning that helps engineers and developers understand the intricacies of network communication. The OSI model's primary value lies in its educational utility and its role as a conceptual framework for designing new protocols, making sure that they can ...
欢迎收听Computer Networking 计算机网络的科技类最新章节声音“Computer Networking Tutorial - 17 - More on OSI Model”。1.网络层次划分2.OSI七层网络模型3.IP地址4.子网掩码及网络划分5.ARP/RARP协议6.路由选择协议7.T...
如图2-1所示,是TCP/IP参考模型和OSI参考模型的对比示意图。图2-1 TCP/IP参考模型 2.1 TCP/IP参考模型的层次结构 TCP/IP协议栈是美国国防部高级研究计划局计算机网(Advanced Research Projects Agency Network,ARPANET)和其后继因特网使用的参考模型。ARPANET是由美国国防部(U.S.Department of Defense,DoD)赞助.....
1.2 Network Hardware(网络硬件) 从广义上讲,目前普遍使用的传输技术有两种,分别是广播式链路和点到点链路。 点到点(point-to-point)链路将一对单独的机器连接起来。在一个由点到点链路组成的网络中,为了从源端到达接收方,短消息必须首先访问一个或多个中间机器,这种短消息在某些情况下称为数据包或包1(packet)...
1.3 network software, 1.3.1 protocol hierarchies, 1.3.2 design issues for the layers, 1.3.3 connection-oriented versus connectionless service, 1.3.4 service primitives, 1.3.5 the relationship of services to protocols, 1.4 reference models, 1.4.1 the osi reference model, 1.4.2 the tcp/ip refer...
(World Wide Web,万维网);6.2 7-Layer OSI Model(OSI模型); Key words: open systems interconnection(OSI,开放系统互连);6.3 works ponents(网络组件) 6.3.1 Switch(交换机); Key words: switch(交换机),forward(转发),filter(过滤),datagram(数据包),port(端口),frame(帧),broadcast domain(广播域) ...
Computer NetworksISO's OSI Reference ModelSource wikipedia.org.Search queries1. Computer Network2. Network TopologyAcomputer networkis a group ofinterconnectedcomputers. Networks may beclassified according to a wide variety of characteristics. This article provides a generaloverview of some types and cate...