Chap-02 OSI Model - Chapter2 The OSI Model and the TCP/IP...

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TCP/IP Protocol Suite 1 Chapter   2 Chapter   2 Upon completion you will be able to: The OSI Model and The OSI Model and the TCP/IP Protocol Suite the TCP/IP Protocol Suite Understand the architecture of the OSI model Understand the layers of the OSI model and their functions Understand the architecture of the TCP/IP Protocol Suite Differentiate between the OSI model and the TCP/IP Suite Differentiate between the three types of Internet addresses Objectives
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TCP/IP Protocol Suite 2 2.1 The OSI Model Established in 1947, the Established in 1947, the International Standards Organization (ISO) International Standards Organization (ISO) is a is a multinational body dedicated to worldwide agreement on international multinational body dedicated to worldwide agreement on international standards. An ISO standard that covers all aspects of network standards. An ISO standard that covers all aspects of network communications is the communications is the Open Systems Interconnection (OSI) Open Systems Interconnection (OSI) model. It model. It was first introduced in the late 1970s. was first introduced in the late 1970s. The topics discussed in this section include: The topics discussed in this section include: Layered Architecture Layered Architecture Peer-to-Peer Processes Peer-to-Peer Processes Encapsulation Encapsulation
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TCP/IP Protocol Suite 3 ISO is the organization. OSI is the model Note: Note:
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TCP/IP Protocol Suite 4 Figure 2.1 The OSI model
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TCP/IP Protocol Suite 5 Figure 2.2 OSI layers
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TCP/IP Protocol Suite 6 Figure 2.3 An exchange using the OSI model
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TCP/IP Protocol Suite 7 2.2 Layers in the OSI Model The functions of each layer in the OSI model is briefly described. The functions of each layer in the OSI model is briefly described. The topics discussed in this section include: The topics discussed in this section include: Physical Layer Physical Layer Data Link Layer Data Link Layer Network Layer Network Layer Transport Layer Transport Layer Session Layer Session Layer Presentation Layer Presentation Layer Application Layer Application Layer Summary of Layers Summary of Layers
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TCP/IP Protocol Suite 8 Figure 2.4 Physical layer
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9 The physical layer is responsible for the movement of individual bits from one hop (node) to the next. Note:
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This note was uploaded on 04/26/2010 for the course CSE CS501 taught by Professor Dmathur during the Winter '10 term at National Institute of Technology, Calicut.

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Chap-02 OSI Model - Chapter2 The OSI Model and the TCP/IP...

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