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Applications of IP Network Architectures IP 網路架構應用

Applications of IP Network Architectures IP 網路架構應用. Contents. Introduction Internet Intranet General Purpose Radio Services (GPRS) Conclusions. Introduction. Network Advantages Resource sharing Make all programs, data, and equipment available to anyone on the network

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Applications of IP Network Architectures IP 網路架構應用

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  1. Applications of IP Network Architectures IP 網路架構應用

  2. Contents • Introduction • Internet • Intranet • General Purpose Radio Services (GPRS) • Conclusions

  3. Introduction • Network Advantages • Resource sharing • Make all programs, data, and equipment available to anyone on the network • High reliability • Replicate files to two or more computers for tolerating failures • Saving money • Several small computers has a much better price/performance than a large one

  4. Introduction • Network Protocols • A set of rules for governing communication for computers over a network • OSI Reference Model • TCP/IP Model

  5. Introduction • Network Protocols (Cont.)

  6. Introduction • TCP/IP • IP addressing • A unique identity for the networked computer • IP routing • How to transmit packet data

  7. Internet • What Is Internet? • Consisting of a lot of networks over the world • Connecting to each other using the IP protocol as the network layer

  8. Internet • Internet in Taiwan Internet TANet HiNet SeedNet Connected Uncertain TANet: Taiwan Academic Network

  9. Internet • HiNet to Other Networks Internet Japan KDD AT&T Global-one Japan IDC JapanJT TANet HiNet SingNet SeedNet HKT/ Netplus KORNET/ DACOM Other Other ISPs ISPs ISP: Internet Service Provider

  10. Internet Internet • Access Ways to Internet • Dial-up 接取伺服器 T1 數據機 HiNet Backbone 電話線 PSTN T1 RS-232 接取伺服器 T1 接取伺服器

  11. Internet Internet • Access Ways to Internet • Leased lines Leased Line HiNet Backbone Router Router DSU/CSU DSU/CSU 網路端 用戶端

  12. Intranet • What Is Intranet? • Connecting an affilicated set of clients behind a firewall • Using the standard Internet protocol (TCP/IP) • Provisioning of a secure environment

  13. Intranet • Intranet’s Home Page

  14. Intranet • Internet’s Home Page

  15. CHT WAN Intranet • Architecture Internet Mail Server FireWall HiNet Router LAN Switch Web Server for Internet Hub Hub Web Server for Intranet DNS Server 分公司(所)辦公大樓 營運處 Router Server 服務中心 LAN Switch Router Server Hub Hub Hub Hub

  16. Intranet • Intranet Elements • Application servers • Web servers • World Wide Web (WWW) services • FTP servers • File transfer services • E-mail servers • Electronic mail services • Etc.

  17. Intranet • Intranet Elements (Cont.) • Network management • Domain Name Servers (DNS) • Firewall • Hubs • Switches • Routers • Etc.

  18. Intranet • WWW Service • Universe of network-accessible information • Hypertex an multimedia for anyone to browse • HyperText Transfer Protocol (HTTP) protocol to communicate between client and server

  19. Intranet • E-Mail Service • Sending a mail message between two users or more • Header • Texts • Simple Mail Transfer Protocol (SMTP) for transferring e-mail messages

  20. Intranet • E-Mail Service (Cont.)

  21. Intranet • FTP Service • Copying files from a file server to a local client through a network

  22. Intranet • FTP Service (Cont.) • Download Example

  23. Intranet • DNS • Name resolution • www.hinet.net→ 210.219.251.248 What is the IP address of www.hinet.net? DNS http:www.hinet.net Network www.hinet.net address is 210.219.251.248

  24. Intranet • Firewall • Intercepting the data between Internet and hosts within the intranet • All Internet traffic through it • Authorizing users/datato get into or go out the Intranet

  25. Intranet Intranet • Firewall (Cont.) • Deployment Firewall Switch Switch Internet SynchronizesSession State Switch Switch Firewall Active paths Standby paths

  26. Intranet • Hubs • Offering a connectionto a network • Switches • Offering connections between two or more hosts • Routers • Offering connections between two or more networks

  27. Internet PSDN PSTN Gi HLR D Gr GGSN MSC/ VLR GPRS Core Network Gs Gn GSM Network A Gb SGSN BSC PCU GGSN: Gateway GPRS Support Node SGSN: Serving GPRS Support Node PCU: Packet Control Unit Packet Switched Data Circuit Switched Data/Voice GSM BTS GPRS • What IS GPRS? • A packet network attached on GSM

  28. GPRS • GPRS Services • Wireless Application Protocol (WAP) Corporate Intranet Corporate Intranet GPRS Network Internet ISP Web Servers WAP Servers WAP Servers Email/ News... Servers

  29. Corporate Intranet Corporate Intranet GPRS Network Internet ISP Web Servers WAP Servers WAP Servers Email/ News... Servers GPRS • GPRS Services (Cont.) • Wireless Virtual Private Network (WVPN)

  30. GPRS • Innovative Wireless Operators • NTT DoCoMo i-Mode Service • Email • Picture and melody downloads • Directories • Mobile banking • Games • Horoscopes • Travel and transport information

  31. GPRS • Top Mobile Data Services

  32. Conclusions • Internet • IPTechnology • Intranet • Secureprivate networks • GPRS • Packetnetwork equipped on the GSM to provide up to 114kbps data service

  33. Thank You for Your Attention

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