International Research Journal of Engineering and Technology (IRJET) Volume: 04 Issue: 02 | Feb -2017
www.irjet.net
e-ISSN: 2395 -0056 p-ISSN: 2395-0072
BUILDING A METRO ETHERNET NETWORK TO DELIVER HIGH BANDWIDTH INTERNET PROTOCOL TELEVISION AND INTERNET ACCESS A.Sundar Raj1, R. Jayasree2, K. Dhanya3
Associate Professor, E.G.S. Pillay Engineering College, Nagapattinam, India1 drasr1982@gmail.com1 E.G.S. Pillay Engineering College, Nagapattinam, India2,3
jayasreearthee@gmail.com2, dhanyaece2506@gmail.com3
------------------------------------------------------------***-----------------------------------------------------------------Abstract— “If you and I were to exchange an apple Neither would have two But if we were to exchange ideas Each would have two ideas” Internet protocol television (IPTV) is a system through which internet television services are delivered using the architecture and networking methods of the internet protocol suite over a packet switched network infrastructure, e.g. internet and the broadband internet access network, instead of being delivered through traditional radio frequency broadcast, satellite signal and cable television (CATV) formats. The available method for delivering IPTV is the ADSL broadband. ADSL broadband has a download bandwidth of 24Mbps.The main limitation of ADSL broadband is that the bandwidth depends upon distance. The ADSL broadband bandwidth varies between 1.5 Mbps to 24Mbps.The ADSL is a proven technology when it comes to delivering shared low speed internet connectivity solutions of bandwidth ranging from 128Kbps to 1Mbps per line. But in the case of services like IPTV it would be a constant streaming of multicast traffic of high bandwidth and this leads to electromagnetic interference. The latest development enables the users to upload programs onto the servers and let the users to assign rights as to who can view the content. This further increases the requirement of bandwidth. An ideal path is to carry muliti-play converged application traffic over optimized path and to extend everywhere with simple switches. Keywords— Bandwidth, IPTV, Fiber, Internet access, Manageability
I. INTRODUCTION Internet Protocol television (IPTV) is a system through which television services are delivered using the architecture and networking methods of the Internet Protocol Suite over a packet-switched network infrastructure. The IPTV offers triple play services. Triple play service offers high speed internet access, television services and telephone service over a single connection. The IPTV is an interactive service where the user can upload his videos in addition to the service provided by the service provider. The existing method for delivering television which includes cable television and direct to home service cannot offer such value added services. Video on Demand (VOD) are systems which allow users to select and watch to video content on demand. IPTV
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technology is often used to bring video on demand to televisions. VOD systems either stream content through a set-top box, allows downloading it to a device such as a settop box. Time shifting is the recording of programming to a storage medium to be viewed at a time more convenient to the consumer. The program usually is recorded in the settop box. In addition to the services provided by the service provider user can be a part of the service providing process by uploading his private videos for sharing with friends and relatives. II. SPANNING TREE PROTOCOL The spanning tree protocol is network protocol that ensures a loop free technology for any Ethernet local area network. The spanning tree protocol permits the usage of active and redundant links in a network. The redundant link takes over the function of the active link if any fault occurs in the latter. The main function of the spanning tree protocol is to create a spanning tree of the switches which are connected together in a network and then to disable the link that are not part of the spanning tree. Thus spanning tree protocol ensures that there is only a single path to reach every destination in a network. To break loops in the LAN while maintaining access to all LAN segments, the bridges collectively compute a spanning tree. The spanning tree is not necessarily a minimum cost spanning tree. A. Operation 1) Selection of root bridge The root bridge of a spanning tree protocol is the bridge with the smallest bridge ID. The bridge ID comprises of two parameters. One is the MAC address of the bridge and the other parameter is priority. The priority is usually specified by the user. Otherwise the bridges have a default priority value of 32768. This is because in the bridge ID 2 Bytes is allocated for the priority. Therefore the value can range from 1 to 65536, the middle value being the default value. If two bridges have the same priority then the bridge with least MAC address is selected as the root bridge.
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