Ethernet is a networking protocol developed by Xerox PARC (Palo Alto Research Center). The original goal was to create a high-speed network connecting multiple computers together. Ethernet has since become the standard for local area networks (LAN). In this blog post, we will discuss What is the relationship between ethernet and LAN.
LAN stands for Local Area Network. This type of network connects devices within a single building or office space. On the other hand, WAN stands for Wide Area Network. These types of networks connect multiple buildings or offices together.
A LAN consists of several nodes connected via cables. Each node contains a switch, which allows data to flow from one device to another. In contrast, a WAN uses wireless connections to transfer data across large distances.
Most people use Ethernet cables to connect their Internet modem to their router. They then attach their computer(s) to the router using an Ethernet cord. Ethernet is also used with Wi-Fi routers to connect your laptop or mobile phone to the internet.
The History Of Ethernet
In 1973, Robert Metcalfe invented what we know today as Ethernet. At the time he created it, there were no standards for how data should be transmitted over wires. There were different sizes of coax cables being sold at the time, but they didn’t fit into any network configuration. So, Metcalfe spent his free time designing a new way to send data on the wire. He called this technology ‘Ethernet’because he believed it would allow more information to travel faster than existing technologies.
After working out the basic design of Ethernet while studying in college, he set up a small company called 3Com Corporation to sell his invention. However, they couldn’t find distributors who wanted to carry the new product until IEEE 802.3 (Institute of Electrical and Electronics Engineers) stepped in. IEEE began developing the first official Ethernet specification. Since then, manufacturers have made improvements to the specifications allowing them to run faster and longer.
How Does Data Flow Over A LAN?
A LAN works like a highway system where all the cars are driving on the same road heading towards the same destination. When you want a car to move along a specific lane, you must tell that car where to go. You do this by sending a signal down the cable LAN networking to make the car change lanes. For example, if you need to pass a slower-moving vehicle, you can tell it to get out of your way by telling it to turn left or right.
Each piece of equipment attached to a LAN is known as a node. It may contain hardware such as a printer, fax machine, scanner, or monitor. If you wish to plug your modem directly into your computer, you can simply buy a Gigabit Ethernet port on your motherboard. Most modern motherboards come equipped with two ports.
It’s important to note that the speed of a LAN depends on many factors including the number of nodes connected, the length of cabling between them, and the distance covered. For example, if a LAN spans just one row of your house, its speed will be limited because it only has room for one node to transmit data. Another common problem is interference. Noise on the line can slow down data transmission; therefore, most modern LANs use shielded twisted pair cables to reduce noise.
In short, a LAN is a collection of nodes connected by cable. The data link layers flow through the cable from one node to another.
What Is An Ethernet Cable?
An Ethernet connection cable is a thin copper wire surrounded by plastic sheathing. It’s used to connect computers, printers, and modems to each other and to other electrical devices. It usually comes in a bundle of three or four individual wires.
The wiring inside a LAN consists of three types of conductors:
GND – Grounding conductor
TRAIN – Trunk conductor
SIGMA – Signal conductor
Most Ethernet cables consist of eight pairs of GND, TRAIN, and SIGMA. Each pair of GND wires represents one of the four differential signals (TX+, TX-, RX+, and RX-), and the TRAIN pairs represent the two pairs of TX+/RX+ and TX-/RX-.
Why Use An Ethernet Network?
There are several reasons why people choose to install an Ethernet network rather than using a traditional telephone system for their home office. Here are some advantages of using Ethernet networks:
Connectivity – All modern PCs and servers have built-in Ethernet interfaces. This means you don’t have to purchase any additional interface cards or adapters. In addition, you don’t even have to worry about installing a phone jack behind the wall. With a conventional phone system, you must also pay for a separate switch and an extra RJ11 jack which makes installing the phone line very difficult.
Bandwidth – Ethernet networks provide much greater bandwidth than a dial-up connection would offer. While a 56k modem might allow users to download only 2 megabytes per second, an Ethernet network could deliver 15 Mbps to 25 Mbps depending on the quality of the network devices.
Security – When you use an Ethernet network, you enjoy added security since everything is encrypted. You can ensure that no unauthorized person gets access to your information.
Cost – Because Ethernet networks cost less than a standard phone line, they cost far less than a dedicated T1 line.
How Does A Computer Connect To An Ethernet Network?
To connect to an Ethernet network, you must first plug an Ethernet adapter card into the back of your server or PC. Then you must plug the Ethernet cable into a broadband router or hub. Finally, you must connect the other end of the cable to either a DSL modem, cable modem, or wireless access point. Once these connections are made, you should see the lights on the Ethernet adapter card blink.
Is A Wireless Network Better Than An Ethernet One?
Some people prefer a wireless network over an Ethernet network because there’s no cable involved. However, if you want to share files with other computers, you will need to move those files between the computers via the Internet. If you decide to go this route, make sure that an Ethernet network still provides connectivity between all your computers. Otherwise, when your computer loses connection to the network, you won’t be able to get online.
If you do go with a wireless network, make sure you invest in a good repeater or antenna booster so that you don’t lose signal strength when moving around your home or office.
Types Of Cables
An Ethernet cable consists of three main parts:
A GND – Grounding conductor
A TRL – Transmit Return Line
A SIGMA – Signal Conductor
The GND wire acts as a grounding conductor. It helps protect against electrical interference from sources such as radio transmitters, electric motors, fluorescent lamps and lightning strikes.
A TRL wire is used to send data out of your computer and onto the network. There are two different types of TRL cables:
A 10BASE5 cable uses five twisted pairs of conductors. Each pair carries a single data bit.
A 100BASE10 cable uses 10 twisted pairs. Each pair carries 10 bits worth of data.
A SIGMA wire is used to carry the return current. It sends the current back to the central switching station where it is transmitted until it returns to the original source.
There are two different kinds of RJ45 connectors:
A CAT 5e connector looks like a miniature version of an RJ45 plug. The CAT 5e connector is used to create a high-speed communication channel within your building.
A CAT 6 connector has one more pin than another type of RJ45 connector. This extra pin enables computers to communicate at higher speeds.
If you plan to install an Ethernet network in a house, make sure you purchase a compatible RJ45 connector. Otherwise, you may find yourself spending hours trying to figure out why your computers aren’t communicating. You can also hire an expert who can install an ethernet network for you.
When choosing an RJ45 connector, look for ones with locking pins. These locks allow you to easily connect the wires together. Without them, you might have to use a splicing tool or crimping pliers to ensure that the wires stay together.
How Do I Install My Ethernet Cable?
Most homes contain two Ethernet ports. They’re located near your telephone wall jack, internet modem/router and TV cable box. You can usually find both jacks by removing the cover plate from your walls. Once you locate these jacks, follow these steps to install an Ethernet cable:
Step 1
Remove the old wiring from the wall socket.
Step 2
Connect one end of the new cable to each jack using the attached screws. Make sure that the screw holes line up with the corresponding holes in the jack.
Step 3
Connect the other end of the cable to the modem or router. Most modems come equipped with either a USB or Ethernet port. If you have a wireless router, simply attach its power cord to the wall socket. Now that you’ve connected everything, plug your modem into your computer.
Step 4
Make sure that the device recognizes your modem. If not, try restarting your computer. If it doesn’t recognize your modem, call your ISP and ask them to fix the problem.
Your laptop’s OS should also detect the new network adapter. After that, you should be able to access any websites on the web.
