What does Ethernet mean on a computer?
Hello Owner, Ethernet is not a specific network, it is a technical specification. Ethernet is the most common communication protocol standard used in today’s existing local area networks (LANs). The standard defines the types of cables and signaling methods used in local area networks (LANs). Ethernet transmits packets of information between interconnected devices at a rate of 10 to 100 Mbps. 10BaseT Ethernet over twisted pair cable is the most widely used Ethernet technology due to its low cost, high reliability, and 10 Mbps rate. Directly expanded wireless Ethernet is available up to 11Mbps, and many manufacturing vendors offer products that communicate using common software protocols with the best openness.
What is Ethernet?
Category:Computer/Network>>Internet
Question Description:
What is Ethernet?
Conceptualization in detail
Analysis:
Ethernet Overview
Ethernet is the most common communication protocol standard used in today’s existing local area networks (LANs), which were established in the early 1970s. Ether (Ethernet) is a commonly used local area network (LAN) standard with a transmission rate of 10 Mbps. In Ethernet, all computers are connected to a single coaxial cable, using the Carrier Sense Multiple Access with Conflict Detection (CSMA/CD) method, a contention mechanism and a bus topology. Basically, Ethernet consists of a shared transmission media, such as twisted pair cable or coaxial cable and a multiport hub, bridge, or switch. In a star or bus configuration, the hub/switch/bridge interconnects computers, printers, and workstations to each other via cables.
The general characteristics of Ethernet are summarized as follows:
Shared media: all network devices sequentially use the same communication media.
Broadcast domain: frames that need to be transmitted are sent to all nodes, but only nodes that are addressed receive the frames.
CSMA/CD: CarrierSenseMultipleAccess/CollisionDetection is utilized in Ethernet to prevent p or more nodes from sending at the same time.
MAC address: a 48-bit network address used by all Ether Network Interface Cards (NICs) at the Media Access Control layer. This address is globally unique.
Basic Ether Network Components:
Shared Media and Cables: 10BaseT (twisted pair), 10Base-2 (coaxial thin cable), 10Base-5 (coaxial thick cable).
Transponder or Hub: A hub or transponder is a type of device used to receive a large number of Ethernet connections on a network device. The data obtained through the receiving side of a particular connection is reused and sent to all connected devices in the transmitting side to obtain a transmission type of device.
Bridge: A bridge is a Layer 2 device that is responsible for dividing the network into separate conflicting domains and segments, with the goal of maintaining broadcasts and sharing within the same domain/segment. The bridge includes a table of all segments and forwarded frames to ensure proper communication behavior in and around the segments.
Switch: a switch, like a bridge, is a Layer 2 device and is a multiport device. A switch supports features similar to a bridge, but it has the advantage over a bridge that it can temporarily connect any two ports together. A switch includes a switching matrix that allows ports to be quickly connected or disconnected. Unlike a hub, a switch only forwards frames from one port to other ports that are connected to the destination node and do not contain broadcasts.
Ethernet Protocol: The Ethernet frame structure is provided in the IEEE802.3 standard. Currently Ethernet supports four transmission rates supported by fiber optic and twisted pair media:
10Mbps-10Base-TEther (802.3)
100Mbps-FastEther (802.3u)
1000Mbps-GigabitEther (802.3z))
10GigabitEther-IEEE802.3ae
This one should be covered in a network Fundamentals book for more details, so I recommend checking out the
What does Ethernet mean
Ethernet is a computer local area network technology.The IEEE organization’s IEEE802.3 standard sets the technical standards for Ethernet, which specifies protocols for connectivity, electronic signals, and media access layers, including the physical layer. Ethernet is currently the most commonly used LAN technology, replacing other LAN standards such as Token Ring, FDDI, and ARCNET.
Ethernet implements the idea that multiple nodes of a radio system on a network send information, and that each node must acquire a cable or channel of in order to transmit the information, which is sometimes called Ethernet (Ether).
(The name comes from a 19th-century physicist’s hypothesis of a medium for electromagnetic radiation, the optical ether. Later research proved that optical ether did not exist.) Each node has a globally unique 48-bit address also known as the MAC address assigned to the network card by the manufacturer to ensure that all nodes on an Ethernet network can identify each other. Because Ethernet is so common, many manufacturers integrate Ethernet cards directly into computer motherboards.
The standard topology for Ethernet is a bus-based topology, but current Fast Ethernet (100BASE-T, 1000BASE-T standards) uses a switch (Switchhub) to connect and organize the network in order to minimize conflicts and maximize network speeds and usage efficiency.
In this way, the topology of Ethernet becomes a star; however, logically, Ethernet still uses a bus topology and CSMA/CD (CarrierSenseMultipleAccess/CollisionDetection) bus technology.
Extended Information:
History
Ethernet technology originated as a pioneering technology project at the Xerox Palo Alto Research Center. It is commonly believed that Ethernet was invented in 1973, the year Bob. Bob Metcalfe wrote a memo to his boss at PARC about the potential of Ethernet. But Metcalfe himself thinks Ethernet came along a few years later.
In 1976, Metcalfe and his assistant David Boggs published an article titled “Ethernet: A Distributed Packet Switching Technique for Regional Computer Networks”.
Metcalfe once joked that Jerry Saltzer had contributed to 3Com’s success, and Saltzer pointed out in an influential paper he co-authored that token ring networks were theoretically superior to Ethernet.
Influenced by this conclusion, many computer manufacturers either hesitated or decided not to make Ethernet interfaces standard on their machines so that 3Com could make a killing from selling Ethernet cards. This led to another statement, “Ethernet is not for the theoretical, it’s for the practical”.
Maybe it’s just a joke, but it illustrates the technical point that often the actual characteristics of data flow in a network are different from what was estimated before LANs were popularized, and it was Ethernet’s simple architecture that made LANs popular.
Metcalfe and Saltzer worked on the same floor at MIT’s ProjectMAC while he was working on his Harvard thesis, during which time the theoretical foundations of Ethernet technology were laid.
In 1979, Metcalfe left Xerox to develop personal computers and local area networks, and founded 3Com, which lobbied DEC, Intel, and Xerox to work with them to standardize and normalize Ethernet.
This common Ethernet standard was proposed on September 30, 1980, and the industry had two popular non-public Ethernet standards at the time. At the time, the industry had two popular non-public networking standards, Token Ring and ARCNET, and they quickly atrophied and were replaced by the Ethernet wave. And in the process, 3Com became an international powerhouse.
What does Ethernet mean?
The meaning of Ethernet is as follows:
First of all Ethernet is the technical standard for computer local area networks (LANs). Its transmission medium can be optical fiber or twisted pair these. Simply put, Ethernet is a technology that connects nearby devices within a LAN so that they can communicate with each other. Therefore, it can also be said that Ethernet is the most common network technology being used today, and most of the networks nowadays belong to the Ethernet category.
The IEEE 802.3 standard, organized by the IEEE, establishes the technical standards for Ethernet, which specifies protocols for the physical layer of connectivity, electronic signals, and the media access layer. Ethernet is the most commonly used LAN technology today, replacing other LAN standards such as Token Ring, FDDI, and ARCNET.
Ethernet content:
There are two types of Ethernet:
Ethernet is classified in two categories: the first is classic Ethernet, and the second is switched Ethernet, which uses a device called a switch to connect different computers.
Classical Ethernet is the original form of Ethernet, running at speeds ranging from 3 to 10 Mbps, while switched Ethernet is exactly what is widely used, running at high speeds like 100, 1,000, and 10,000 Mbps, in the form of Fast Ethernet, Gigabit Ethernet, and 10,000 Gigabit Ethernet, respectively.
Refer to Baidu Encyclopedia-Ethernet
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What does Ethernet mean
Ethernet is a computer local area network technology.
Ethernet is the most common type of computer network in the real world. There are two types of Ethernet: the first is classic Ethernet, and the second is switched Ethernet, which uses a device called a switch to connect different computers.
Classical Ethernet is the original form of Ethernet, running at speeds ranging from 3 to 10 Mbps, while switched Ethernet is exactly the kind of Ethernet that is widely used, running at high speeds like 100, 1,000, and 10,000 Mbps, in the form of Fast Ethernet, Gigabit Ethernet, and 10,000 Gigabit Ethernet, respectively.
The standard topology of Ethernet is a bus-type topology, but Fast Ethernet (100BASE-T, 1000BASE-T standards) uses switches for network connectivity and organization in order to reduce conflicts and maximize network speeds and usage efficiency.
In this way, the topology of Ethernet becomes a star; however, logically, Ethernet still uses a bus topology and CSMA/CD (CarrierSenseMultipleAccess/CollisionDetection) bus technology.
Difference between Ethernet and broadband:
1, the principle is different
Ethernet implements the idea of sending information from multiple nodes of a wireless system on a network, where each node must acquire a cable or channel to send information, sometimes called Ethernet, and where each node has a world-unique 48-bit address that is assigned by the manufacturer to the network card’s MAC address so that all nodes on the Ethernet can authenticate with each other.
And broadband ADSL uses DMT (Discrete Multi-Tone) technology, which splits the okHz to 1.1MHz band of the original telephone line into 256 subbands with a bandwidth of 4.3khz, where those in the bands below 4khz are used to transmit POTS (traditional telephone service), the bands from 20khZ to 138khZ are used to transmit the uplink signals, and the bands from 138khZ to 1.1 MHZ band is used for transmitting downlink signals. DMT technology can adjust the number of bits modulated on each channel to maximize line utilization based on line conditions.
2. Different types
The types of Ethernet differ only in speed and cabling, such as 10Mbps Ethernet, 100Mbps Ethernet (Fast Ethernet), 1Gbps Ethernet, 10Gbps Ethernet, 100Gbps Ethernet.
And the difference in broadband is the difference in the technology used, e.g. ADSL technology is a new high-speed broadband technology that operates over existing ordinary telephone lines, utilizing an existing pair of telephone copper wires to provide users with asymmetrical transmission rates (bandwidth) up and down.
DSL (digitalsubscriberline digital subscriber loop) technology is a broadband access technology based on ordinary telephone lines, in the same copper line to transmit data and voice signals, respectively, FTTH refers to the fiber optic direct to the user’s residence, generally only 1-2 user lines, short-term economy is not good, but the long-term The direction of development and the ultimate access network solutions.