Lecture22_inf201_fall2010

Lecture22_inf201_fall2010 - INF201 Network Models INF201...

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Computer Networks: Network Models INF201 Introduction to Information Technologies INF201 Department of Informatics University at Albany – SUNY Adapted from Choi, Spring 2009
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OSI MODEL By Navpreet Singh A Video Clip from YouTube OSI Model
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Communication Architecture Strategy for connecting host computers and other communicating equipment. Defines necessary elements for data communication between devices. A communication architecture, therefore, defines a standard for the communicating hosts. A programmer formats data in a manner defined by the communication architecture and passes it on to the communication software. Separating communication functions adds flexibility, for example, we do not need to modify the entire host software to include more communication devices. OSI Model
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Layer Architecture Layer architecture simplifies the network design. It is easy to debug network applications in a layered architecture network. The network management is easier due to the layered architecture. Network layers follow a set of rules, called protocol. The protocol defines the format of the data being exchanged, and the control and timing for the handshake between layers. OSI Model
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Open Systems Interconnection (OSI) Model International standard organization (ISO) established a committee in 1977 to develop an architecture for computer communication. Open Systems Interconnection (OSI) reference model is the result of this effort.
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Lecture22_inf201_fall2010 - INF201 Network Models INF201...

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