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An Implementation of the Broadband Home Gateway supporting Multi-Channel IPTV Service

An Implementation of the Broadband Home Gateway supporting Multi-Channel IPTV Service. 國立屏東科技大學 資訊管理系 指導教授：童曉儒 教授 報告人：張益瑞 學號： M9756003. Outline. Introduction Related Works System Architecture and Implementation Test Scenario and Results Conclusion 心得. Introduction.

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An Implementation of the Broadband Home Gateway supporting Multi-Channel IPTV Service

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  1. An Implementation of the Broadband Home Gateway supporting Multi-Channel IPTV Service 國立屏東科技大學 資訊管理系 指導教授：童曉儒 教授 報告人：張益瑞 學號：M9756003

  2. Outline • Introduction • Related Works • System Architecture and Implementation • Test Scenario and Results • Conclusion • 心得

  3. Introduction • Consumersincreasing demands and home network trend • IP address and NAT • IPTV • IGMP and IGMP snooping • Architecture and superiority

  4. Related Works • Network and System for Digital Home Services • IPTV(Internet Protocol Television) • IGMP and IGMP snooping

  5. Network and System for Digital Home Services • Fiber to the Home(FTTH) network • Ethernet Passive Optical Network(EPON) • Adequate network bandwidth

  6. 補充：EPON • 基於乙太網路的被動光纖網路(EPON)是一個點到多點的光接取網路，提供可靠的數據、語音以及視訊服務，在最長10km上傳送速率可以達1,000Mbps。 資料來源： http://www.eettaiwan.com

  7. Network and System for Digital Home Services • Connected to exterior public network throughout a home gateway system. • HG has powerful processing power and enough network bandwidth to provide above networking service.

  8. Network and System for Digital Home Services 分流

  9. 補充：NAT(Network AddressTranslation) • 網路位址轉譯器：NAT可以讓很多台電腦只用很少的Public IP Address就能夠連上Internet。 • 使用NAT mapping table維持對應關係。 • 節省Public IP Address。

  10. 補充：NAT(Network AddressTranslation) 來源http://turtle.ee.ncku.edu.tw/~tung/nat/nat.htm

  11. IPTV(Internet Protocol Television) • IPTV is delivered to consumers using the Internet Protocol over a broadband connection. • Video content is typically MPEG2 delivered with IP multicast.

  12. Network and System for Digital Home Services

  13. IGMP and IGMP snooping • manage the channel registration and release to provide IPTV service. • IGMP proxy function:a role as IGMP clients in the view ofLHR and as a multicast router in the side of IPTV clients.

  14. 補充：獨立多點傳送-稀疏模式路由協定(PIM-SM, Protocol Independent Multicast - Sparse Mode) • 優點：PIM-SM採用共享樹進行群播封包轉發。每一個組有一個匯合點（Rendezvous Point: RP），群播源沿最短路徑向RP發送封包，再由RP 沿最短路徑將封包發送到各個接收端。

  15. IGMP and IGMP snooping PIM-SM(Protocol Independent Multicast - Sparse Mode)

  16. IGMP and IGMP snooping • manage thechannel registration and release • MembershipQuery • Membership Report • Leave Group messages

  17. System Architecture andImplementation • System Architecture • Data and Control Packet • Driver and Software Implementation • Implemented System

  18. System Architecture

  19. System Architecture-function and roles

  20. Data and Control Packet

  21. Driver and Software Implementation • IGMP proxy function • instead of multicastingprotocol to register and release the multicast membership. • receive and transmit the IGMPmessages on behalf of IP STB. • IGMPsnooping function • reduce the processor’s work load inproposed home gateway.

  22. Driver and Software Implementation

  23. Driver and Software Implementation • IGMP Snooping Manager • prevent the multicast packet to forward toundesirable ports. • reduce theCPU’s work load with forwarding directly to the specifichosts without forwarding to the processor.

  24. Driver and Software Implementation

  25. Implemented System

  26. Test Scenario and Results

  27. Test Scenario and Results

  28. Conclusion • An implementation results forhome gateway supporting multi-channel, more that threechannel, HD class IPTV service. • HG systemcan provide various digital home service.

  29. 心得 • Cost • Performance and pressure test • 1000Mbps/20Mbps = 50 channel • Power consumption and environment

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