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During the early years of our modern computer era, very few standards and protocols existed between various manufacturers. However, as time went on and computer technology continued to improve and become more widespread, it became apparent that standards would be necessary to ensure compatibility. This was especially true with regard to networks, and networking technology. Since the main purpose of a network is to share information, a standard that governs how this information is formatted, transmitted, received and verified would make it possible for information to be shared openly, even when dealing with dissimilar networks.
This need for a standard means of implementing open communications led the ISO and ANSI to develop the seven-layer network communications model known as Open Systems Interconnect. By providing guidelines regarding the way network equipment should be manufactured and how network operating systems communicate on a network, the OSI model became the common link that allows data to be transmitted and exchanged reliably. Although it does not actually perform any functions or do any of the actual work, the OSI model defines the way things should be done by the software and hardware on a network so that communications can take place between two computers or nodes.
In this way, the OSI model provides a universal set of rules that make it possible for various manufacturers and developers to create software and hardware that is compatible with each other. This makes for organized communications. As I thought about this, I related it to the freeways that connect the various states of the mainland U.S. Because all of these freeways were constructed with the same set of standards regarding the width of each lane, the proper side that a person should drive on, the speed at which they should travel, and so on, people can comfortably drive across the country in an organized and efficient manner and car manufacturers are able to design cars within these guidelines as well. On the other hand, if each state had devised its own set of rules, each differing from the other, not only would there be a lot more chaos on the roads, but also car manufacturers would have a hard time designing vehicles that would be compatible with each state's roads. To me, this illustrates the importance of the OSI model with respect to network communications. Not only is it the foundation for all network communications today, but also because it is such a fundamental part of these communications, it becomes very apparent to me that it is very important for a network technician to understand the OSI model in full detail.
The OSI model is made up of the following layers: the physical, data link, network, transport, session, presentation and application. Together, these seven layers are collectively referred to as a stack. As a node receives data, each layer starting with the physical layer extracts the various portions of the packet and this process works its way up to the application layer. When data is sent, it begins at the application layer and travels down to the physical layer. The information is pushed to the next layer of the stack by means of commands called primitives. Each layer uses a peer protocol to encode the information, which ensures that the same layer on the receiving node will be able to understand the information.
What else can I help you with?
Which model came first osi model or tcpip?
Offcourse osi..... TCP/IP is an implementation of osi....
Which layer of the OSI model are layers capabale of functioning?
The OSI Model stands for Open Systems Interconnection. The answer to the question which layer of the OSI model are layers capable of functioning is at all layers.
What is osi in computer networking?
OSI means Open System Interconnection. OSI is a standard model for networking given by ISO .
What is the highest layer of the OSI model?
application
Which layer of the OSI reference model is responsible for signal encoding?
Physical layer which is the first layer in OSI reference model is responsible for signal encoding and decoding.
How do the layers of the OSI model correlate to the layers of the OSI model?
OSI
What are the top and bottom osi model layers called?
application -top of osi model physical- bottom of osi model
Which model came first osi model or tcpip?
Offcourse osi..... TCP/IP is an implementation of osi....
Which osi layer is application?
OSI stands for Open system interconnection model. Application layer is the seventh layer in OSI model.
You want to use the OSI reference model to troubleshoot a repeater Which OSI layer will you focus on?
Repeaters operate at the physical layer of the OSI model.
What is the physical layer of the OSI model designed to do?
hub work at physical layer of osi model
What is the Role of p2p in osi model?
p2p y osi
Which layer of the OSI model are layers capabale of functioning?
The OSI Model stands for Open Systems Interconnection. The answer to the question which layer of the OSI model are layers capable of functioning is at all layers.
Explain OSI reference model with revant diagram?
Explain OSI reference model with revant diag
IPX is used in layer of Novell Netware?
In the OSI reference model, that would be layer 3 (network).In the OSI reference model, that would be layer 3 (network).In the OSI reference model, that would be layer 3 (network).In the OSI reference model, that would be layer 3 (network).
Why Osi model is a model not a protocol?
because osi is open system interconnection that used to interact with open system
In which layer cabling take place?
If you mean the OSI reference model, that's layer 1 (physical).If you mean the OSI reference model, that's layer 1 (physical).If you mean the OSI reference model, that's layer 1 (physical).If you mean the OSI reference model, that's layer 1 (physical).
