Thread: What Is Ethernet?

What Is Ethernet? - Networking Computer Tips

It is a typical of network communication. Twisted pair cable can be used in it though coaxial cable was utilized in previous versions. It is broadly utilized in network communication and execute at 10 to 1000 megabytes per second with quicker versions on prospect.

IEEE standard 802.3 is utilized for Ethernet but it has some different types with original 10base5 edition. The 10 stands for 10Mbps and base explain Baseband communications it utilizes. 5 stand for a maximum distance of 500 meters which is how far signal can travel previous to having to be regenerated. This kind of Ethernet utilized coaxial wiring rather than new editions that utilize twisted pair cabling. Other kinds of Ethernet contain 10Base2, 10BaseT and 100BaseT which are most common type use now. 10BaseT offers 100 Mbps with a distance of 100 meters and utilizes twisted pair cabling.



On an Ethernet network when a PC sends out a packet intended for other PC then usually each PC on network section will obtain that packet and PCs that it does not go to will refuse packet. If you have big network then this can begin to take its toll on your bandwidth if each PC (node) has to get packet. If you are using switched Ethernet then switch picks up each transmission before it reaches other node. The switch then forwards data over proper section but data only reaches anticipated recipient.

Now most networks utilize Full Duplex Ethernet which permits network card to send and receive data at similar time. Older systems used Half Duplex which only permitted data to move one direction at a time between devices.

CSMA/CD (Carrier Sense Multiple Access with Collision Detection) was applied to help reduce on collisions of packets caused by 2 or more PCs sending data down wire at similar time. Earlier a station sends; it listens to medium/cable to decide if other station is transmitting. If medium is ideal, station knows that it is ok to send data. A single Ethernet segment is occasionally called a collision domain because no two stations on segment can transmit at similar time without causing a collision.

Bigger Ethernet networks are frequently not working into several segments or subnets to keep traffic and collisions at a minimum. When PC sends a packet out to its own subnet then it will remain on that subnet if it is addressed to various subnets. Then a router will take that packet and forward it to proper subnet. The method that network decides what subnet packet is going to is depend on destination IP address within packet.

Ethernet cabling in utilize today is Category 5 UTP (Unshielded Twisted Pair). This cable uses 4 pairs of twisted-pair wires within one cable. The two pairs are utilized to send data and 2 pairs are utilized to get data. There is also a Shielded Twisted Pair (STP) but it is costly and harder to work with due to shielding. Cat5 cables utilize an RJ-45 connector on end which looks like a phone cord connector only bigger. Cat5e is a new kind of Cat5 cabling that supports 1GBMbps connections where standard Cat5 only supports 100Mbps. Cat6 is similar as Cat5e except that it is created to a higher standard and raises bandwidth from 100MHz to 250MHz.

Ethernet is a family of frame-based computer networking technologies for local area networks (LANs). The name comes from the physical concept of the ether. It defines a number of wiring and signaling standards for the Physical Layer of the OSI networking model as well as a common addressing format and Media Access Control at the Data Link Layer.

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Ethernet is a standard communications protocol embedded in software and hardware devices, intended for building a local area network (LAN). Ethernet was designed by Bob Metcalfe in 1973, and through the efforts of Digital, Intel and Xerox (for which Metcalfe worked), "DIX" Ethernet became the standard model for LANs worldwide.
A basic hard-wired LAN consists of the following components:

• Two or more computers to be linked together, or networked.
• A network interface card (NIC) in each computer.
• Ethernet cable to connect to each computer.
• A networking switch or networking hub to direct network traffic.
• Networking software.

Ethernet is a protocol that controls the way data is transmitted over a LAN. The first Ethernet was created firstly between 1973 and 1975. The Ethernet was supposed to be a layer of very pure air. An Ethernet network uses Ethernet cards and cables to make the connections. The term Ethernet is heard less today because of the popularity of wireless networks.

Ethernet is a standard communications protocol embedded in software and hardware devices, intended for building a local area network (LAN). Ethernet was designed by Bob Metcalfe in 1973, and through the efforts of Digital, Intel and Xerox (for which Metcalfe worked), "DIX" Ethernet became the standard model for LANs worldwide.

Anyone know, what is fast Ethernet? and how it is differ than Ethernet?