WHAT IS OSI MODEL :

SEEDBED:

OSI model – open system interconnection model, was the first ensign model for network communication embraced by all major computer and telecommunication companies in the early 1980s it was introduced by Hubert Zimmermann a French software engineer in which the concept of the 7 layers was provided by Charles Bachman an American computer scientist and was developed by (ISO) International Organization for Standards, which is befittingly called as X.200-OSI model

GERMINATION:

When there was a need for a higher level protocol the OSI model was first bounded in the CCITT program by 1980, which was soon replaced when it was only a theoretical document, due to the growth of the TCP/IP model which was code driven. As this model is a mixture of pros and cons this model still finds its application in the field of networking (Bluetooth, USB, Ethernet, etc.)

WHIP HAND:

OSI model is a standard model in computer networking. This model works in a dovetailed way, where troubleshooting is made easier. It is ductile and reconciles with various protocols. It proffers connection as well as connectionless services. It is a generic model and acts as a guidance tool to develop any network layer model. The swap in one layer does not infect the other layer. It distinctly separates interface, services, and protocols, and its flexible in nature. The protocols used in every layer are replaced conveniently depending upon the nature of the work.

SNAG:

It is only used as a reference model, where the fitting protocol is a tiresome task. It is complex and duplicated in many layers. This model is solely a theoretical model which limits practical application. The layers can't work in parallel as each layer need to wait to obtain data from the previous layer.

 ANALYSIS BETWEEN OSI AND TCP/IP:

OSI is a generic, protocol-independent standard. It is acting as an interaction gateway between the network and the final user, and was only a theoretical model, whereas TCP/IP model which was developed after the OSI model depends on standard protocols about which the computer network has been created.a It is a connection protocol that assigns the network of hosts over the internet. Hence when one is focusing on proper functionalities then they must go for TCP/IP (internet protocol suit) which was developed by the DoD (department of defense) model since it is more reliable doesn't contain duplicated data, and is more practical than OSI