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Unicasting , Broadcasting And Multicasting New
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Unicasting , Broadcasting And Multicasting New

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Unicasting , Broadcasting And Multicasting New Unicasting , Broadcasting And Multicasting New Presentation Transcript

  • Unicasting , broadcasting and multicasting
  • Unicasting
    Unicast transmission:
    • Sending of messages to a single network destination host on a packet switching network.
    packet switching: Groups all transmitted data irrespective of content, type, or structure – into suitably-sized blocks, called packets. 
    One-to one connection between the client and the server.
  • How it works?????
    Use IP delivery methods (session-based protocols)such as
    Transmission Control Protocol (TCP)
    User Datagram Protocol (UDP)
    Each unicast client that connects to the server takes up additional bandwidth.
    Client has a direct relationship to the server
  • A schematic Example of unicasting
  • Advantages
    Used for all network processes in which a private or unique resource is requested.
    Disadvantage
    applications which are mass-distributed are too costly to be conducted
    each network connection consumes computing resources on the sending host and requires its own separate network bandwidth for transmission.
  • multicast
    A multicasting is associated with a group of interested receivers.
    No direct relationship between the clients and server.
    Clients that are connected to the multicast adds no additional overhead on the server.
    In fact, the server sends out only one stream per multicast station. The same load is experienced on the server whether only one client or 1,000 clients are listening 
  • How it works???
    Step1: The sender sends a single datagram to the multicast address
    Step 2:The intermediary routers take care of making copies and sending them to all receivers that have registered their interest in data from that sender.
  • ADVANTAGES
    Datagarm received only by the interfaces that want it
    Group addresses
    Messages are UDP so there is no connection setup
    Can be used across a WAN
    Disadvantage
    Not good for bulk data transfer
    Multicast on the Internet is generally not practically used on large scale
  • Broadcasting
    BROADCAST - A method of sending information over a network.
    Data comes from one source and goes to all other connected sources.
    This has the side effect of congesting a medium or large network segment very quickly.
  • 9 - 12
    Uses and its applications
    Network
    Spot
    Syndicated
    Group of local affiliates connected to one or more national networks
    Viable national medium for food and beverages, cars, and over-the-counter drugs
    Growth has contributed to increase in syndicated radio
  • 9 - 13
    Uses and its applications
    Network
    Spot
    Syndicated
    When an advertiser places an ad with an individual station rather than a network
    Makes up nearly 80% of all radio advertising
    Messages can be tailored for particular audiences
  • 9 - 14
    Uses and its applications
    Network
    Spot
    Syndicated
    Offers advertisers a variety of high-quality, specialized, and usually original programs
    Advertisers value syndicated programming because of the high level of audience loyalty
  • thanks