Semester 1 Chapter 4 Slides

Semester 1 Chapter 4 Slides - 13 May 2009 S Ward Abingdon...

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Unformatted text preview: 13 May 2009 S Ward Abingdon and Witney College CCNA Exploration Semester 1 1 OSI transport layer CCNA Exploration Semester 1 Chapter 4 13 May 2009 S Ward Abingdon and Witney College CCNA Exploration Semester 1 2 OSI transport layer OSI model layer 4 TCP/IP model Transport 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 13 May 2009 S Ward Abingdon and Witney College CCNA Exploration Semester 1 3 Transport layer topics Roles of the transport layer TCP: Transport Control Protocol UDP: User Datagram Protocol 13 May 2009 S Ward Abingdon and Witney College CCNA Exploration Semester 1 4 Purpose of transport layer Responsible for the overall end-to-end transfer of application data. 13 May 2009 S Ward Abingdon and Witney College CCNA Exploration Semester 1 5 Transport layer Enables multiple applications on the same device to send data over the network at the same time Provides reliability and error handling if required. (Checks if data has arrived and re- sends if it has not.) 13 May 2009 S Ward Abingdon and Witney College CCNA Exploration Semester 1 6 Transport Layer TCP and UDP 13 May 2009 S Ward Abingdon and Witney College CCNA Exploration Semester 1 7 Why two transport protocols?...
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Semester 1 Chapter 4 Slides - 13 May 2009 S Ward Abingdon...

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