《TCPIP网络技术》实训汇.ppt

实训考核 现场考核 个人考核 分组考核 课程表现 实训报告 * 实训报告 提交时间：201x年xx月xx日 格式规范与要求：实训报告相关要求 负责人：学习委员 * 课程准备 实验设备与耗材 交换机：14台 电源插线板：8个 打线钳：8把 网线测试仪：8个 水晶头：53×3+10=116个 网线：若干，大于100米 相关视频与软件 网线制作视频 虚拟机软件 Win2k3 Enterprise操作系统安装文件 虚拟机已制作镜像文件 FTP服务器端与客户端软件 * * Layer 1 of 2: Purpose: This figure orients the students to the OSI model. Emphasize: This model should be a review for students who attend this course. Gage the depth of your discussion around the knowledge of the students. Transition: The following layer discusses the lower layers of the OSI reference model. * Layer 2 of 2: Purpose: This figure orients the students to the next set of concepts. Emphasize: The Data Link layer of the OSI reference model is implemented by Switches and Bridges. These devices encapsulate date in “frames”. The Network layer of the OSI reference model is implemented by Routers. These devices encapsulate data in ‘packets’. The Transport layer of the OSI reference model is implemented by various protocols; one of which is TCP. TCP uses ports and encapsulates the data in ‘segments’. * 带着这个问题进入下一部分学习 * Hosts and servers operate at Layers 1-7. Transceivers, repeaters, and hubs are all considered active Layer 1 devices, because they act only on bits and require energy. Patch cables, patch panels, and other interconnection components are considered passive Layer 1 components because they simply provide some sort of conducting path. NICs are considered Layer 2 devices since they are the location of the MAC address. However, since they often handle signaling and encoding they are also Layer 1 devices. Bridges and switches are considered Layer 2 devices because they use Layer 2 (MAC address) information to make decisions on whether or not to forward frames. They also operate on Layer 1 in order to allow bits to interact with the media. Routers are considered Layer 3 devices because they use Layer 3 (network) addresses to choose best paths and to switch packets to the proper route. Router interfaces operate at L