networking

Cloud Computing

Zainub Wahid Benefits of Cloud Computing, Cloud Computing, Community Cloud, DBaaS, FaaS, Hybrid Cloud, Infrastructure-as-a-Service, networking, Platform-as-a-Service, Private Cloud, Public Cloud, Software-as-a-Service, Virtualisation Leave a comment

Have you ever thought about starting your own E-Commerce business? If yes, you might have looked for possible options of hosting a platform for online business. One option that came to mind of every person starting his/her online business is to buy a server and manage online platform by themselves. But, have you ever thought of money you will spend while going through this option? This option requires a lot of money and maintenance. For example purchasing a server, cooling system, space, networking, scaling etc.

Have you ever thought of solving this issue? How easy will it be if you can just buy space online and you don’t have to worry about rest of problems like, space, networking, security, expansion. This concept of availability of specifications over the internet around the clock is known as cloud computing. Isn’t it interesting? Now, let’s move forward and check the technicalities of cloud computing.

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Bridge Protocol Data Unit (BPDU)

Zainub Wahid BPDU, Bridge Protocol Data Unit, IP Addresses, IP Addressing, LAN, network, Network ID, Network Layer, Network Topology, networking, Spanning Tree Protocol, STP, switch 2 Comments

Every network device starts communicating with other network device after making sure the other device is on and is working fully. But, how a network device can make sure other device is responsive? Network devices check other devices by sending Hello packets. Other devices after receiving Hello packets send Acknowledgement packets. Network devices usually transmit Hello packets after every few seconds. Continue reading →

Subnetting

Zainub Wahid IP, IP Addressing, Network ID, networking, Subnet ID, Subnet Mask, Subnetting, TCP/IP Model Leave a comment

Single IP is purchased by the company and this single IP is responsible for networking of all the departments in a company. Being interested in networking, this is the first question that comes in the minds, How a single IP can be used by all the departments? The answer to this lies in the concept of subnetting. So, the question arises, what is subnetting? Converting single IP into more networks is called subnetting. 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.
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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 →

Networking Devices

Zainub Wahid broadcast, hub, modem, multicast, network, networking, networking devices, repeater, router, switch, unicast 2 Comments

Networking devices also known as Networking Hardware or networking equipment. There is no fixed word for them and you can call whatever you want! You must have heard names of many networking devices like Router, Switch, Hub, etc. In this post we will discuss some of these networking devices and their purposes.

First, let me tell you that all these networking devices have same meaning but have different purposes. All these devices are meant to forward the data coming from host device to destination device. Continue reading →

Basics of Networking

Zainub Wahid Bus Topology, Connectivity, LAN, MAN, Mesh Topology, network, Network Topology, networking, PAN, Ring Topology, Star Topology, WLAN 1 Comment

Wait for a minute and think about the definition of network! Many you will be thinking:
“Communication between two computers”
“Transferring data from one computer to other computer”
“Connecting two Computers or devices”

All of these are WRONG! Repeat the above mentioned definitions and then concentrate on words. Give 3 seconds to every word and then tell me one thing! Continue reading →