Transport Layer

Difference Between OSI Reference Model and TCP/IP Reference Model

Zainub Wahid IP Addresses, network, Network Layer, OSI Model, OSI Reference Model, Physical Layer, Presentation Layer, TCP/IP Model, Transport Layer Leave a comment

Before moving towards the Difference of these two important models, question is, What is OSI Model and What is TCP/IP Model?

I already have discussed these two models in detail in my previous posts. Kindly visit, OSI Reference Model and TCP/IP Reference Model for understanding these two models in detail.

Lets start noting down all differences between these two models: Continue reading →

OSI Reference Model

Zainub Wahid Application Layer, Data Link Layer, network, Network Layer, networking, OSI Model, OSI Reference Model, Physical Layer, Presentation Layer, Session Layer, Transport Layer 28 Comments

A user from one country sends request and Google web search engine opens it for you, if net is connected to the PC. Have you ever wondered how all this is happening? NO? Mostly people don’t bother how things are happening around us. But Network Engineers do care about how communication is happening between two devices. And the best answer is “Understand OSI Reference Model”.
Let’s suppose we have small network and PC wants to communicate with Server.
11 Continue reading →

TCP/IP Reference Model

Zainub Wahid Application Layer, Data Link Layer, IP, network, Network Layer, networking, TCP/IP Model, Transport Layer 1 Comment

TCP/IP is the most pervasively used networking protocol in the history of networking. TCP stands for Transmission Control Protocol and IP stands for Internet Protocol. Every network built using any networking product today supports TCP/IP.

A networking model, sometimes also called either a networking architecture or networking blueprint. A protocol is a set of logical rules that devices must follow to communicate. The TCP/IP model both defines and references a large collection of protocols that allow computers to communicate. To define a protocol, TCP/IP uses documents called Requests For Comments (RFC). Continue reading →