Ethernet

An Ethernet switch is a type of network hardware that is foundational to networking and the internet. Ethernet switches connect cabled devices, like computers, Wi-Fi access points, PoE lighting and IoT devices, and servers, in an Ethernet LAN so they can communicate with each other and to the internet. • What is Ethernet? Ethernet technology is designed to solve the problem of packet collision in a shared network by having network-connected devices follow a set of rules that allow devices to talk to each another without talking over each other. These network-connected devices are physically connected with a cable to an Ethernet switch that then manages the flow of data between devices, applications, data, cloud services and the internet. More formally, Ethernet is a common name for the IEEE 802.3 standard based on the Carrier Sense Multiple Access/Collision Detection (CSMA/CD) protocol, which defines when to transmit and what is to happen if a collision is detected, as well as endpoint addressing, transmission speeds, and media. The IEEE 802.3 media standards focus on cable type (coaxial, twisted-pair and fiber), bandwidth capacity (10 Mbps to Tbps) and transmission distance. Ethernet has evolved dramatically since its first application and today is the de facto protocol for IP-based networks and the internet. Ethernet switches have also become the common network switch type and foundational technology for most networks. How is Ethernet different from Wi-Fi? Wi-Fi can be s...

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• Solid Ethernet cables offer slightly better performance and improved protection against electrical interference. They're also commonly used on business networks, wiring inside office walls, or under lab floors to fixed locations. • Stranded Ethernet cables are less prone to physical cracks and breaks, making them more suitable for travelers or in-home network setups. A crossover cable is a type of Ethernet cable that connects two computers to each other. By contrast, most Ethernet cables connect one computer to a router or switch. Things to Consider When You Buy A single Ethernet cable has a maximum distance capacity, meaning the cable has an upper limit as to how long it can be before there is a signal loss (called Both ends of the cable should be close enough to each other to receive signals quickly, and far enough away from outside electrical interference to avoid interruptions. However, this precaution doesn't limit the size of a network, because hardware like routers or hubs can join multiple Ethernet cables together on the same network. This distance between the two devices is called the network diameter. A short cable may suffer from signal reflection. However, some people have reported no problems with cable lengths as low as 4 inches. Different types of RJ-45 connectors serve different purposes. One type, designed for use with stranded cables, is incompatible with solid cables. Other types of RJ-45 connectors may work with both stranded and solid cables.

By • Senior Site Editor • Former Associate Site Editor, TechTarget For hundreds of years, scientists believed a mysterious substance known as ether served as the medium for light to disperse through space. The notion was ultimately dismissed once physicists discovered that photons act as both particles and waves. But the archaic word lives on in the modern term Ethernet -- the technology by which bits of information travel through complex computer networks. Created at Xerox Palo Alto Research Center (PARC) in the early 1970s by a team that included ) as a standard in 1983, Ethernet has become the dominant Let's take a look at the technology's progress over the past several decades and explore where experts think it could head in the years to come. Robert Metcalfe invents Ethernet The evolution of Ethernet officially began in 1973 when engineer Robert Metcalfe introduced the concept in a memo he wrote while working at Xerox PARC. The technology, as Metcalfe described it, linked discrete advanced computing workstations and enabled them to communicate with each other, as well as with devices like high-speed Using the rudimentary Aloha protocol, a station would transmit a frame over a common data channel and then wait for confirmation it had reached its destination successfully. If the station didn't receive confirmation within a given period, it assumed a collision had occurred with another frame that a different node happened to send simultaneously. That station would contin...

Chevron icon It indicates an expandable section or menu, or sometimes previous / next navigation options. Chevron icon It indicates an expandable section or menu, or sometimes previous / next navigation options. Chevron icon It indicates an expandable section or menu, or sometimes previous / next navigation options. What is Ethernet? The wired network connection, explained • Ethernet is the most common type of local area network (LAN) technology, and it involves a hardwired connection to the internet. • Ethernet comes in several varieties including Fast Ethernet, Gigabit Ethernet, and 10-gigabit Ethernet. • While Ethernet is more stable and secure than Wi-Fi, it is typically less accessible and can be more expensive. Ethernet cables connect your devices to an internet router. Yanawut Suntornkij / EyeEm/Getty Images Ethernet functions on a local area network (LAN) basis, connecting a series of computers over a distance of up to about 10 kilometers, typically in a school or workplace setting within the same building. While Ethernet might seem slightly outdated in the age of wireless connection, it remains highly useful for particular, intensive tasks, such as video streaming and virtual communication. Types of Ethernet • Fast Ethernet: This type of Ethernet connection offers high speeds of roughly 100 Mbps when transmitting. To operate this type of Ethernet connection, you'll generally need a Cat5 cable or twisted pair. • Gigabit Ethernet: If Fast Ethernet isn't offering you...

When you think of home networking, your thoughts naturally turn to Wi-Fi and the ability to move data throughout a house or apartment over nothing more than thin air. There's another way that, for some scenarios, is not only easier and more reliable, but potentially faster: use Ethernet cables to move the data to and fro. After all, even the best Wi-Fi routers have (often unused) Ethernet ports that, with the right cable, can routinely move upward of 1 Gigabit per second (Gbps) and as far as 330 feet, surpassing Wi-Fi's abilities. While my family connects its phones, tablets and notebooks over Wi-Fi, we also use wired networking for printers, scanners, access points, network storage and an internet radio. And it's the simple, but often little understood Ethernet cable that makes it work. • • Find the There's nothing like the satisfying click when an Ethernet cable's RJ-45 connector snaps into place, ready to move data. At the most basic level, getting top speed out of wired networking relies on three things: the router's speed, the capabilities of the device that is using the data and, of course, the cable's data-carrying capacity. Data Evolution: The many types of Ethernet cable, and where they come from Set the Wayback Machine to the late 1980s. Hair was bigger, shoulders were padded and early networkers were using either coaxial cable or what came to be called Category 1 cable. Also called voice-grade cable, it was generally composed of insulated telephone wires twisted...

Ethernet is defined as a networking technology that includes the protocol, port, cable, and computer chip needed to plug a desktop or laptop into a local area network (LAN) for speedy data transmission via coaxial or fiber optic cables. This article explains the meaning of Ethernet and how it works, along with its key uses. Table of Contents • • • Ethernet is a networking technology that includes the protocol, port, cable, and computer chip needed to plug a desktop or laptop into a local area network (LAN) for speedy data transmission via coaxial or fiber optic cables. Ethernet is a communication technology developed in the 1970s by Xerox that links computers in a network via a wired connection. It connects local area network (LAN) and wide area network (WAN) systems (WAN). With LAN and WAN, several devices, such as printers and laptops, may be connected across buildings, residences, and even small communities. It provides a straightforward user interface that facilitates the connection of several devices, including switches, routers, and PCs. With a router and just a few Ethernet connections, it is possible to construct a local area network (LAN ) that enables users to communicate between all connected devices. This is because laptops have Ethernet connectors, into which cables are inserted, and the other end is linked to routers. Most Ethernet devices are compatible with Ethernet connections and devices that run at slower speeds. However, the connection speed will be det...

• Computers and devices to connect: Ethernet connects any computer or other electronic device to its network as long as the device has an • Network interface cards in the devices: A network interface cardis either integrated into the motherboard of the computer or installed separately in the device. There are also USB versions of Ethernet cards, such as • A router, hub, switch, or gateway to connect devices: A • Cables: UTP (Unshielded Twisted Pair) • Software to manage the network: Modern operating systems like recent versions of

Ethernet Tutorial – Part I: Networking Basics Computer networking has become an integral part of business today. Individuals, professionals and academics have also learned to rely on computer networks for capabilities such as electronic mail and access to remote databases for research and communication purposes. Networking has thus become an increasingly pervasive, worldwide reality because it is fast, efficient, reliable and effective. Just how all this information is transmitted, stored, categorized and accessed remains a mystery to the average computer user. This tutorial will explain the basics of some of the most popular technologies used in networking, and will include the following: • • • ATM, PoE and Token Ring • • Types of Networks In describing the basics of networking technology, it will be helpful to explain the different types of networks in use. Local Area Networks (LANs) A network is any collection of independent computers that exchange information with each other over a shared communication medium. Local Area Networks or LANs are usually confined to a limited geographic area, such as a single building or a college campus. LANs can be small, linking as few as three computers, but can often link hundreds of computers used by thousands of people. The development of standard networking protocols and media has resulted in worldwide proliferation of LANs throughout business and educational organizations. Wide Area Networks (WANs) Often elements of a network are w...