Exploration Chapter 8 Slides

Exploration Chapter 8 Slides - OSI Physical layer CCNA...

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6 May 2009 S Ward Abingdon and Witney College CCNA Exploration Semester 1 1 OSI Physical layer CCNA Exploration Semester 1 Chapter 8
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6 May 2009 S Ward Abingdon and Witney College CCNA Exploration Semester 1 2 OSI Physical layer OSI model layer 1 TCP/IP model part of Network Access layer Application Presentation Session Transport Network Data link Physical Application Transport Internet Network Access TCP, UDP IP Ethernet, WAN technologies HTTP, FTP, TFTP, SMTP etc Segment Packet Frame Bits Data stream
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6 May 2009 S Ward Abingdon and Witney College CCNA Exploration Semester 1 3 Physical layer topics Physical layer protocols and services. How signals are used to represent bits. Characteristics of copper, fiber, and wireless media. Describe uses of copper, fiber, and wireless network media.
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6 May 2009 S Ward Abingdon and Witney College CCNA Exploration Semester 1 4 Physical layer tasks Takes frame from data link layer Sees the frame as bits – no structure Encodes the bits as signals to go on the medium
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6 May 2009 S Ward Abingdon and Witney College CCNA Exploration Semester 1 5 Physical layer standards define: Physical and electrical properties of the media Mechanical properties (materials, dimensions, pinouts) of the connectors and NICs Bit representation by the signals (encoding) Definition of control information signals
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6 May 2009 S Ward Abingdon and Witney College CCNA Exploration Semester 1 6 Physical layer standards Set by engineering institutions The International Organization for Standardization (ISO) The Institute of Electrical and Electronics Engineers (IEEE) The American National Standards Institute (ANSI) The International Telecommunication Union (ITU) The Electronics Industry Alliance/ Telecommunications Industry Association (EIA/TIA)
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6 May 2009 S Ward Abingdon and Witney College CCNA Exploration Semester 1 7 Digital Bandwidth The amount of data that could flow across a network segment in a given length of time. Determined by the properties of the medium
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This note was uploaded on 04/29/2008 for the course ICTN 2154 taught by Professor Khoury during the Spring '08 term at East Carolina University .

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Exploration Chapter 8 Slides - OSI Physical layer CCNA...

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