Chapter 2 The OSI Model Prepared by: Mrs. Wilma M. de Pano.
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Transcript of Chapter 2 The OSI Model Prepared by: Mrs. Wilma M. de Pano.
![Page 1: Chapter 2 The OSI Model Prepared by: Mrs. Wilma M. de Pano.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e8f5503460f94b939ce/html5/thumbnails/1.jpg)
Chapter 2The OSI Model
Prepared by:
Mrs. Wilma M. de Pano
![Page 2: Chapter 2 The OSI Model Prepared by: Mrs. Wilma M. de Pano.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e8f5503460f94b939ce/html5/thumbnails/2.jpg)
Objectives
Upon completion of this chapter, you will be able to familiarize yourself with the:
General Model of Communication The OSI Reference Model Comparison of the OSI Model and the
TCP/IP Model
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Analyzing Network in Layer
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Comparing Network
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Source, destination and data packets
Data or Data Packet – information that flows on a Network
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Media
10 Base2 50 ohm Coaxial Cable
Fiber Optic
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Media
10 Base5 Thicknet cable UTP
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Protocols – is a set of rules that make communication on
a network more efficient.
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ISO International Organization for Standardization
They created a network model that would help vendors create networks that would be compatible with, and operate with, other networks.
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OSI reference model
Provided the vendors with a set of standards that ensured greater compatibility and interoperability between the various types of network technologies that were produced by the many companies around the world.
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Why a layered Network Model?
Reduced complexity Standardize interfaces Facilitate modular
engineering Ensure interoperable
technology Accelerate evolution Simplifies teaching and
learning
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The 7 Layers of OSI Model
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The 7 Layers of OSI Model
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The 7 Layers of OSI Model
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The 7 Layers of OSI Model
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The 7 Layers of OSI Model
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The 7 Layers of OSI Model
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The 7 Layers of OSI Model
![Page 19: Chapter 2 The OSI Model Prepared by: Mrs. Wilma M. de Pano.](https://reader036.fdocuments.us/reader036/viewer/2022062518/56649e8f5503460f94b939ce/html5/thumbnails/19.jpg)
The 7 Layers of OSI Model
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Data Encapsulation
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Example
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Peer-to-Peer Communication
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TCP/IPTransmission Control Protocol / Internet Protocol
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Protocol Graph
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Comparing TCP/IP with OSI Model
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Similarities and Differences of TCP/IP and OSI Models
Similarities– Both have layers– Both have application layers,
though they include very different services
– Both have comparable transport and network layers
– Packet-switched technology is assumed
– Networking professionals need to know both
Differences– TCP/IP combines the
presentation and session layer issues into its application layer
– TCP/IP combines the OSI data link and physical layers into one layer
– TCP/IP appears simpler because it has fewer layers
– TCP/IP protocols are the standards around which the internet developed, so that TCP/IP models gains credibility just bec. of its protocols
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End of Presentation
Thank you