Click here to load reader
Upload
newman
View
109
Download
0
Embed Size (px)
DESCRIPTION
9.1. 9.3. 9.2. Internet 概述. 网络宽带接入. 综合案例. 第 9 章 局域网与 Internet 连接技术. 9.1 概述. Internet 称为国际计算机互联网,俗称因特网,是将世界各地的计算机连接起来并彼此相互通信的一个大型计算机网络。把网络互连起来,也就是 把网络的资源组合起来 ,这就是 Internet 的精华及其迅速发展的原因。. 9.1.1Internet 的概念和组成. - PowerPoint PPT Presentation
Citation preview
9 Internet
9.1 InternetInternet
9.1.1InternetInternetInternet
InternetInternet
9.1.2InternetInternet
9.1.3Internet20104.530%2.5
10.2 ADSLFTTX+LANCABLE MODEM
10.2.1 ADSL ADSLAsymmetric Digital Subscriber LineADSL640Kbps8Mbps
ADSL
Modem
ADSL
ADSL
9-1ADSL ADSLADSL
FTTHFiber To The HomeFTTH FTTNFTTCHFC(Hybrid Fiber Coaxial)
FTTP
Modem
9.2.2 FTTX+LAN FTTBFTTZ10Mbit/s100Mbit/s
9-2
9.2.3 Cable Modem Cable ModemCable Modem
9-3Cable Modem ADSLCable Modem
9.2.4ISDNIntegrated Services Digital Network80 BRIBasic Rate Interface PRIPrimary Rate Interface
9.2.5DDNDigital Data NetworkDDNDDN
9.2.6
36.6k/56k1000MbpsISDN128KbpsADSL8MbpsFTTH10GbpsPLC1Mbps10Mbps1.3Gbps