《TCPIP网络技术》实训.ppt
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1、TCP/IP网络技术-实训,联系方式,姓名:方磊办公地点:实验楼510电话:18922352520Email:,2,实训要求,考核方式现场考核分组考核个人考核(共约7个项目)课程表现实训报告实训报告报告要求,3,实训内容,目录,Review实训项目一:网络线材认知与制作实训项目二:链路层与网络层分析实训项目三:网络操作系统设置与安装实训项目四:应用层协议配置与应用综合应用考核,5,Review:网络与网络协议,网络组成拓扑结构七层协议,6,7,OSI Model Overview,Application(Upper)Layers,Session,Presentation,Application
2、,8,OSI Model Overview,Data Flow Layers,Transport Layer,Data Link,Network Layer,Physical,9,物理层,OSI参考模型的最低层 确保比特流能在物理信道上传输 机械特性 电气特性 功能特性 规程特性,物理层的标准:RS-232C、RS-449、RS-422、RS-423V.35、X.21,10,数据链路层,向网络层提供透明的和可靠的数据传送服务 功能包括帧同步功能 差错控制功能 流量控制功能 链路管理功能,11,网络层,实现两个端系统之间的数据透明传送 虚电路和数据报网络层地址路由选择拥塞控制,目录,Review
3、实训项目一:网络线材认知与制作实训项目二:链路层与网络层分析实训项目三:网络操作系统设置与安装实训项目四:应用层协议配置与应用综合应用考核,12,网络线材认知与制作,网线与RJ45接口介绍双绞T568A与T568B网线类型与应用场景网线制作视频观看网线制作步骤与演示网线测试仪使用制作网线 考核:制作符合要求的网线,13,14,网线的分类和制作规范,网线是网络中重要的组成部分之一最常用的是5类非屏蔽双绞线(UTP)。常用于10 Base T和100Base TX。关于网线的制作标准有两个:T568A,线序(左起):白绿绿白黄蓝白蓝黄白棕棕T568B,线序(左起):白黄黄白绿蓝白蓝绿白棕棕,15,
4、网线类型和应用,根据连接的设备不同,需要用到不同类型的网线:标准网线(直通网线、直连网线)用于数据终端设备(计算机路由器)与HUB或SWITCH相连。网线两边(两头)线序要求一致,通常工程中使用比较多的是 T568B标准。交叉网线(级联网线)交叉网线常用于两台以太网交换机或两台计算机需要直接连接通信时例如SWITCH与SWITCH级连时计算机与计算机相互连接通信时。网线两边(两头)分别按照T568B 和T568A标准制作。,目录,Review实训项目一:网络线材认知与制作实训项目二:链路层与网络层分析实训项目三:网络操作系统设置与安装实训项目四:应用层协议配置与应用综合应用考核,16,链路层与
5、网络层网络分析,局域网常见设备类型说明设备的连接与应用对等网络子网内的设备设置与故障排除思考题:跨子网的设备连通常用网络命令使用,17,冲突(collision)的问题?,计算机越来越多,冲突增加网络如何进行扩张?,计算机越来越多,网络怎么扩张?加网络设备加什么网络设备:HUB、中继器、Bridge、Switch、Router?,局域网常见设备类型说明,网卡(NIC)中继器(Repeaters)集线器(Hubs)网桥(Bridges)交换机(Switches),网卡(NIC),The network interface card(NIC,or LAN adapter)is a printed
6、circuit board.This board fits into the expansion slot of a bus on the computer motherboardNICs are considered Layer 2 devices because each individual NIC throughout the world carries a unique code called a Media Access Control(MAC)address.,中继器(Repeaters),The purpose of a repeater is to regenerate an
7、d retime network signals at the bit level to allow them to travel a longer distance on the media.Repeaters are classified as Layer 1 devices because they act only on the bit level.The term repeater traditionally meant a single port in and a single port out device.,集线器(Hubs),The purpose of a hub is t
8、o regenerate and retime network signals at the bit level to allow them to travel a longer distance on the media.Hubs are classified as Layer 1 devices because they act only on the bit level.Hub is nothing more than a repeater with more than two ports.Two types:Intelligent hubs can manage network tra
9、ffic.Dumb hubs simply take an incoming networking signal and repeat it to every other port without the ability to do any management.,桥接器(Bridges),A bridge is a Layer 2 device designed to connect two LAN segments.The purpose of a bridge is to filter traffic on a LAN,to keep local traffic local,yet al
10、low connectivity to other parts(segments)of the LAN for traffic that has been directed there.The bridge keeps track of which physical(MAC)addresses are on each side of the bridge and makes its decisions based on this MAC address list.,交换机(Switches),A switch is a Layer 2(Data Link)device.The purpose
11、of a switch is to examine the Layer 2(MAC)addresses of incoming frames,and then switch them to the proper outgoing port.The purpose of a switch is to concentrate connectivity,while making data transmission more efficient.,每段(端口)有自己的冲突域所有段(端口)都在一个广播域,Memory,Switch,Switches,路由器(Routers),A Router is a
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