ITN305 UNIT 3 IP1

ITN305 UNIT 3 IP1 - Introduction to Networks The...

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Introduction to Networks The Functionality of the OSI Reference Model The Functionality of the OSI Reference Model Dionne Jordan 10-18-09 American Intercontinental University
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Introduction to Networks The OSI Reference Model Open System Interconnection (OSI) standard are fashion on mostly all network in use today. Developed in 1984 by the International Organization for Standardization (ISO), they represent one hundred and thirty countries as a global federation of national standards organization. OSI reference model is the core of this standard, with a set of seven layers that define different stages that data must go to travel through from one device to another over a network (Tyson, 1998-2009). The seven layers acts as the assembly line in the computer, each layer perform a certain thing to the data to prepare it for the next layer. The seven layers are divided into two sets. Computer A Computer B Virtual communication Peer communication among OSI layers Presentation Session Transport Network Data Link Physical Application Presentation Session Transport Network Data Link Physical Application
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Introduction to Networks Layer 7 Application , this layer interact with the OS or application when a user choose to read messages, perform other network related jobs or transfer files. Layer 6 Presentation, this layer takes the data given by the application layer then converted into a standard format which is understood by other layers.
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This note was uploaded on 01/06/2011 for the course IT ITD320 taught by Professor Mr during the Spring '10 term at AIU Online.

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ITN305 UNIT 3 IP1 - Introduction to Networks The...

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