Bài giảng Mạng máy tính nâng cao (Advanced computer networks) - Chương 2: Wan and Router

Objective: Identify organizations responsible for WAN standards Explain the difference between a WAN and LAN and the type of addresses each uses; describe the role of a router in a WAN Identify internal components of the router and describe their functions; describe the physical characteristics of the router.

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Bài giảng Mạng máy tính nâng cao (Advanced computer networks) - Chương 2: Wan and Router 1 Mạng Máy Tính Nâng CaoAdvancedComputerNetworks Chương2:WANANDROUTER NLUFIT Objective  Identify organizations responsible for WAN 2 standards  Explain the difference between a WAN and LANAdvancedComputerNetworks and the type of addresses each uses  Describe the role of a router in a WAN  Identify internal components of the router and describe their functions  Describe the physical characteristics of the router  Identify common ports on a router Properly connect Ethernet, serial WAN, and NLUFIT  console ports Objective  Describe the purpose of the IOS 3  Describe the basic operation of the IOS  Identify various IOS featuresAdvancedComputerNetworks  Identify the methods to establish a command-line interface (CLI) session with the router  Move between the user command executive (user EXEC) and privileged EXEC modes  Establish a HyperTerminal session on a router  Log into a router  Use the help feature in the command line NLUFIT interfaceNLUFIT AdvancedComputerNetworks 4 WAN STANDARDS -WAN Devices WAN Devices  Routers offer many services, including 5 internetworking and WAN interface ports.  Switches in the WAN provide connectivity forAdvancedComputerNetworks voice, data, and video communication.  Modems include interface voice-grade services, channel service units/digital service units (CSU/DSUs) that interface T1/E1 services, and Terminal Adapters/Network Termination 1 (TA/NT1s) that interface Integrated Services Digital Network (ISDN) services.  Communication servers concentrate dial-in and NLUFIT dial-out user communication. WAN Standards  WAN physical layer protocols describe how to provide electrical, mechanical, operational, and 6 functional connections for WAN services. WAN data link protocols describe how framesAdvancedComputerNetworks  are carried between systems on a single data link  WAN standards are defined and managed by a number of recognized authorities, including the following agencies: International Telecommunication Union- Telecommunication Standardization Sector (ITU-T), formerly the Consultative Committee for International Telegraph and Telephone (CCITT) NLUFIT International Organization for Standardization (ISO) Internet Engineering Task Force (IETF) Electronic Industries Association (EIA)NLUFIT AdvancedComputerNetworks 7 WAN physical layer protocolsNLUFIT AdvancedComputerNetworks 8 WAN data link protocols WAN data link protocols  High-Level Data Link Control (HDLC) -- an IEEE 9 standard; may not be compatible with different vendors because of the way each vendor has chosen to implement it. HDLC supports both point-to-pointAdvancedComputerNetworks and multipoint configurations with minimal ...