NETWORK PROTOCOLS - AND COMMUNITATION ...eprints.binadarma.ac.id/3127/1/Chapter_2....
Transcript of NETWORK PROTOCOLS - AND COMMUNITATION ...eprints.binadarma.ac.id/3127/1/Chapter_2....
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NETWORK PROTOCOLSAND COMMUNITATION
Edi Surya Negara,M.Kom.
Postgraduate Program, Informatics Engineering (S2)
November 15, 2016
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References :
• Computer Networks - A Tanenbaum - 5th edition (2011)
• Data Communications and Networking - Behrouz A.Forouzan -4th edition (2007)
• Cisco System Inc - 2011 - Cisco Configuration Profesional UserGuide.
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Chapter 2: Objectives
After completing this chapter, students will be able to:
• Explain how rules are used to facilitate communication.
• Explain the role of protocols and standards organizations infacilitating interoperability in network communications.
• Explain how devices on a LAN access resources in a small tomedium-sized business network.
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Chapter 2:
• 2.1 Rules of Communication
• 2.2 Network Protocols and Standards
• 2.3 Moving Data in the Network
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2.1 Rules of Communication
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What is Communication?
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Establishing the Rules
• An identified sender and receiver
• Agreed upon method of communicating (face-to-face, telephone,letter, photograph)
• Common language and grammar
• Speed and timing of delivery
• Confirmation or acknowledgment requirements
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Message Encoding
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Message SizeAn overview of the segmenting process:
• The size restrictions of frames require the source host to break along message into individual pieces (or segments) that meet boththe minimum and maximum size requirements.
• Each segment is encapsulated in a separate frame with theaddress information, and is sent over the network.
• At the receiving host, the messages are de-encapsulated and putback together to be processed and interpreted.
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Message Timing• Access Method The set of rules that defines how a computer
puts data onto the network cable and takes data from the cableis called an access method. Once data is moving on the network,access methods help to regulate the flow of network traffic.
• Carrier-sense multiple-access with collision detection (CSMA/CD)• Carrier-sense multiple-access with collision avoidance (CSMA/CA)• Token passing• Demand priority
• Flow Control
• Response Timeout
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Features of Different Access Methods
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Message Delivery Options
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2.2 Network Protocols and Standards
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Network Protocols
• How the message is formatted or structured
• The process by which networking devices share information aboutpathways with other networks
• How and when error and system messages are passed betweendevices
• The setup and termination of data transfer sessions
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Interaction of Protocols
• Application Protocol Hypertext Transfer Protocol (HTTP)
• Transport Protocol Transmission Control Protocol (TCP)
• Internet Protocol Internet Protocol (IP)
• Network Access Protocols Data link & physical layers
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Protocol Hierarchies
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Protocol Hierarchies
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TCP/IP Protocol Suite and Communication
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Standards Organizations Open Standards
• The Internet Society (ISOC)
• The Internet Architecture Board (IAB)
• The Internet Engineering Task Force (IETF)
• Institute of Electrical and Electronics Engineers (IEEE)
• The International Organization for Standards (ISO)
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Open Standards
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Standards Organizations IEEE
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Standards Organizations IEEE
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Other Standards Organization
• The Electronic Industries Alliance (EIA)
• The Telecommunications Industry Association (TIA)
• The International Telecommunications UnionTelecommunications Standardization Sector (ITU-T)
• The Internet Corporation for Assigned Names and Numbers(ICANN)
• The Internet Assigned Numbers Authority (IANA)
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The OSI Reference Model
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2.3 Moving Data in the Network
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Protocol Data Units (PDUs)
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Protocol Encapsulation
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Accessing Local Resources
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Communicating with Device / Same Network
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MAC and IP Addresses
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Communicating Device / Remote Network
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