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The story begins…

The story begins…. ISDN. B-ISDN. FDDI. DQDB. ATM. PC / workstation Client Server Network interface unit (NIU) Transceiver Attachment unit Repeater Hub. Data terminal equipment (DTE) Data communication equipment (DCE) Switch – Ether, X.25, ISDN, IP, ATM, frame relay

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The story begins…

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  1. The story begins… ISDN B-ISDN FDDI DQDB ATM

  2. PC / workstation Client Server Network interface unit (NIU) Transceiver Attachment unit Repeater Hub Data terminal equipment (DTE) Data communication equipment (DCE) Switch – Ether, X.25, ISDN, IP, ATM, frame relay Connection-oriented Connectionless Packets, datagrams, frames, cells Network component

  3. Synchronous Transfer Mode (STM) • Not efficient • Waste of bandwidth

  4. Asynchronous Transfer Mode (ATM) • Flexible • Efficient • Huge bandwidth, low error rates

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