Presentation Layer – OSI Model
The primary goal of this layer is to take care of the syntax and semantics of the information exchanged between two communicating systems. Presentation layer takes care that the data is sent in such…
Session Layer – OSI Model
The Session Layer allows users on different machines to establish active communication sessions between them. It's main aim is to establish, maintain and synchronize the interaction between communicating systems. Session…
Transport Layer – OSI Model
The basic function of the Transport layer is to accept data from the layer above, split it up into smaller units, pass these data units to the Network layer, and…
Network Layer – OSI Model
The network Layer controls the operation of the subnet. The main aim of this layer is to deliver packets from source to destination across multiple links (networks). If two computers…
Data Link Layer – OSI Model
Data link layer performs the most reliable node to node delivery of data. It forms frames from the packets that are received from network layer and gives it to physical…
Physical Layer – OSI Reference Model
Physical layer is the lowest layer of the OSI reference model. It is responsible for sending bits from one computer to another. This layer is not concerned with the meaning…
Feature of OSI Model
1. Big picture of communication over network is understandable through this OSI model. 2. We see how hardware and software work together. 3. We can understand new technologies as they are developed. 4. Troubleshooting…
The OSI Model
There are n numbers of users who use computer network and are located over the world. So to ensure, national and worldwide data communication, systems must be developed which are compatible to…
Reference Models in Communication Networks
The most important reference models are : 1. OSI reference model. 2. TCP/IP reference model. Introduction to ISO-OSI Model There are many users who use computer network and are located all over…
Connection Oriented and Connectionless Services
These are the two services given by the layers to layers above them. These services are: 1. Connection Oriented Service 2. Connectionless Services Connection Oriented Services There is a sequence of operation…
