Day-8: OSI Model Part-2

The OSI model has seven layers. Let’s start at the Application layer. Layer-7:Application Layer. An application layer where the user interacts with the network communication means the user prompts the network-aware application(Firefox, Google Chrome, Outlook, etc.) to access something over the network Like web applications, Emails, File transmissions, etc. Lots of protocol works on Application layer Like Http,Https,FTP,… Read More »

Day-7: OSI Model Part-1

What is Protocol? Before we understand the OSI Model we need to understand the protocol. A protocol is a set of rules of operation it means there is something that has been predefined or pre-programmed In order for computers to exchange information, there must be a preexisting agreement as to how the information will be structured and how… Read More »

Day-6: Cisco’s Three-Layer Hierarchical Enterprise Network Design.

In an enterprise network, we have 3 layered hierarchical models for designing a reliable network infrastructure. This three-layer model helps you design, implement, and maintain a scalable, reliable, and cost-effective network. Each layer has its own features and functionality, which reduces network complexity. 1-Core Layer.2-Distribution Layer.3-Access Layer.We will discuss these layers from the bottom to the top. 3-Access… Read More »

Day-5: What is Internet & Intranet & Extranet. ?

1-What is Internet The internet is a worldwide collection of interconnected LANs and WANs. in simple the internet is called a network of networks. LANs are connected to each other using WANs. WANs may use copper wires, fiber optic cables, and wireless transmissions. The internet is not owned by any individual or group. Connecting To the Internet. There… Read More »

Day-4: Types of Network.

A network can be classified into many categories as we use the network everywhere. Small Home Networks:– connect a few computers to each other in a home and also you connect those computers to the Internet. Small Office/Home Office: – enables computers within a home or remote office to connect to a corporate network. Medium to Large Networks:… Read More »

Day-3: Networking Topology.

Network topology refers to the physical and logical view of the network. It defines the way different types of network equipment are placed and interconnected with each other and how the data is flowing between the nodes in the network. There are normally 2 types of topology we are going to discuss here. 1-Physical Topology.2-Logical Topology. Physical Topology:-… Read More »

Day-2: Networking Equipments.

There are many types of network equipment that we use to build the network such as Network infrastructure Devices, Cables, Servers, End Hosts, etc. I have listed below a few mostly used equipment. 1-End Hosts. Host devices are the devices that are used by the end-users to access the network and the mostly used end hosts are Desktops,… Read More »

Day-1: Introduction to Network?

Computer Network Definition. Nowadays Communication is very important to us as our reliance on air, water, food, and shelter. In today’s world, through the use of networks, we are connected like never before. A network is simply defined as something that connects things together for a communication purpose. The term network is used in a variety of contexts,… Read More »

Introduction Of BGP.

BGP is an Exterior Gateway Routing Protocol and BGP is used for exchanging the routing information between the auto system numbers. Let’s look into some of the BGP’s basic features. BGP Keypoints..! BGP is a Path Vector Protocol. BGP is an open standard protocol. BGP is an exterior gateway routing protocol and it is designed for inter-AS domain… Read More »