Ques: What is difference between OSI Reference Model and TCP/IP Protocol Suite?
OSI Reference Model actually describes the function of each layer and TCP/IP defines the protocol.
There are some key differences between these two architecture :
OSI Reference Model
|TCP/IP Protocol Suite|
|It distinguishes between service interface and protocol||It does not clearly define between service, interface and protocol.|
|firstly description the model and protocol came next||Protocol came first and description of model later.|
|supports connectionless and connection oriented communication in network layer and only connection oriented communication in transport layer||
TCP/IP has only connectionless communication in network layer and transport layer provides both connectionless and connection oriented communication.