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Kuliah Komunikasi Data

Kuliah Komunikasi Data. Lima Komponen Komunikasi Data. Message: Information(data) to be communicated Sender Receiver Transmission medium: Physical path by which a message travels Protocol: A set of rules that govern data communication. Arah Aliran Data. Topology.

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Kuliah Komunikasi Data

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  1. Kuliah Komunikasi Data

  2. Lima Komponen Komunikasi Data • Message: Information(data) to be communicated • Sender • Receiver • Transmission medium: Physical path by which a message travels • Protocol: A set of rules that govern data communication

  3. Arah Aliran Data

  4. Topology

  5. Standards Committees • ISO • Voluntary international organization • ITU-T • Formerly, CCITT formed by UN • ANSI • Private non-profit corporation in the US • IEEE • The largest engineering society in the world • EIA • Non-profit organization in the US

  6. Network Models Layered Tasks The OSI Model Layers in the OSI Model TCP/IP Protocol Suite Addressing

  7. Pertukaran Data Model OSI • Encapsulation with header and possibly trailer

  8. TCP/IP Protocol Suite • Host-to-network : Physical and data link layer • No specific protocol • Network layer • IP(Internet Protocl), ARP(Address Resolution Protocol), RARP(Reverse ARP), ICMP(Internet Control Message Protocol), IGMO(Internet Group Message Protocol) • Transport layer • TCP(Transmission Control Protocol), UDP(User Datagram Protocl), SCTP(Stream Control Transmission Protocol), • Application Layer • Combined session, presentation, and application layers

  9. Hubungan Antara Layers Dan Pengalamatan

  10. Transmisi Digital Digital-to-Digital Conversion Analog-to-Digital Conversion Transmission Mode

  11. Skema Dari Line Coding

  12. Frequency Division Multiplexing • FDM is an analog multiplexing technique that combines analog signals • Signals modulate different carrier frequencies • Modulated signals are combined into a composite signal • Channel - Bandwidth range to accommodate a modulated signal • Channels can be separated by strips of unused bandwidth (guard band) to prevent overlapping

  13. Media Transmisi Guided Media Unguided Media: Wireless

  14. Jenis/kelas Dari Media Transmisi

  15. Wired LANs: Ethernet IEEE Standards Standard Ethernet Changes in the Standard Fast Ethernet Gigabit Ethernet

  16. IEEE Standards • In 1985, the Computer Society of the IEEE started a project, called Project 802, to set standards to enable intercommunication among equipment from a variety of manufacturers. Project 802 is a way of specifying functions of the physical layer and the data link layer of major LAN protocols.

  17. Wireless LANs IEEE 802.11 Bluetooth

  18. Introduction to Computer Networks Network Topology • The network topology defines the way in which computers, printers, and other devices are connected. A network topology describes the layout of the wire and devices as well as the paths used by data transmissions.

  19. The IP Addressing Scheme • Addressing is specified by the Internet Protocol ( IP ) • Internet protocol address or IP address • A unique 32-bit binary number • Used for all communication with the host • Each 32-bit IP address is divided onto two parts • A prefix and a suffix • Network number • A unique value assigned to each physical network • The IP address hierarchy guarantees that • Each computer is assigned a unique address • Suffixes can be assigned locally without global coordination

  20. Classes of IP Addresses • The class of an address determines the boundary between the network prefix and host prefix • IP divides host address into their primary classes A, B and C • The first four bits of an address determines the class • To use IP multicasting, a set of hosts must agree to share a multicast address

  21. Basics of Network Addressing Every machine on the Internet has a unique identifying number, called an IP Address. A typical IP address looks like this: 216.27.61.137 But computers communicate in binary form.

  22. 11011000.00011011.00111101.10001001 216.27.61.137 IP Addressing The same IP address in binary:

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