Application Design For ChangChun Broadband IP Network With IPTV Technology

The high-speed development especially the Broadband Access of ADSL and FTTX+LAN did not bring corresponding benefit for telecom carrier. On one hand, the carriers increase the access broadband and decrease the expense because of the increasing pressure of competition. On the other hand, customers use the P2P such as Bittorrent, taking up a great deal of resource in backbone network. All of it makes the cost of carriers increase. On the contrary, the ARPU is gradually decreasing. The telecom carriers require urgently a new benefit mode to bring along the desire of customers. So the telecom carriers try to develop the service of IPTV, moreover, there are successful cases in the world.After the reform of China Telecom, JLCNC, as an important basic carrier and stock company in Jilin Province, try its best to find new benefit approach. JLCNC does the IPTV experience for promoting the value of IP network and has a good base for IPTV commercial application. The purpose of JLCNC is to keep the advantage and become bigger and stronger.Relative to open Internet business, IPTV will be based on a controllable and administrable platform and need a perfect bearer network. The main business of IPTV consists of services on demand and on multicast. The subject is to research the construction of IPTV bearer network and discuss its perform project of multicast. The author offers the project of IPTV bearer network by comparing different position on multicast perform project of IP, DSLAM,ATM with current network. According to the test of experimental network, the author analyzes the result of the experience and summarizes gain of the experimental network and finds some problems in it. Finally the author puts forward a kind of prospective layout for IPTV bearer network.The essay consists of five chapters.Chapter 1 Introduction.At first the author introduces the concept of IPTV, including the definition, characteristic and correlative technology. Secondly the author introduces the development of technology and service about IPTV in the world. At last introduce the origin, the goal and the means of the subject.