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Posted by on November 10, 2022

On the Internet, there are always many concepts of which Ethernet and LAN have some similarities and difference. What are Ethernet and LAN? What’s the difference between them?

What is Ethernet? Ethernet is a computer LAN technology. IEEE 802.3 Standard organized by IEEE formulates the technical standard of Ethernet, which specifies the contents of connection of physical layer, electronic signal and medium access layer protocol. It uses logical bus topology and carrier to detect multiple access / conflict monitoring (CDSMA / CD). Ethernet is the most widely-used LAN technology at present, replacing other LAN standards such as Token Ring, FDDI and ARCNET. Ethernet is not a specific network, but a technical specification. check for more certcollection cisco

It has topology and star-shaped structure. The topology requires less cables, has high management cost, which is cheap and easy to cause network congestion,but not easy to isolate fault points, adopts shared access mechanism. The star-shaped structure is easy to manage, easy to expand, which needs special network equipment as the core node of the network, needs more network cables, and has high requirements for the reliability of the core equipment. The star-shaped topology can easily expand the network to a large scale by cascading. Therefore, it has been widely used and adopted by most Ethernet.

What is the difference between Ethernet and LAN?On the Internet, there are always many concepts of which Ethernet and LAN have some similarities and difference. What are Ethernet and LAN? What’s the difference between them?

What is Ethernet? Ethernet is a computer LAN technology. IEEE 802.3 Standard organized by IEEE formulates the technical standard of Ethernet, which specifies the contents of connection of physical layer, electronic signal and medium access layer protocol. It uses logical bus topology and carrier to detect multiple access / conflict monitoring (CDSMA / CD). Ethernet is the most widely-used LAN technology at present, replacing other LAN standards such as Token Ring, FDDI and ARCNET. Ethernet is not a specific network, but a technical specification.

It has topology and star-shaped structure. The topology requires less cables, has high management cost, which is cheap and easy to cause network congestion, but not easy to isolate fault points, adopts shared access mechanism. The star-shaped structure is easy to manage, easy to expand, which needs special network equipment as the core node of the network, needs more network cables, and has high requirements for the reliability of the core equipment. The star-shaped topology can easily expand the network to a large scale by cascading. Therefore, it has been widely used and adopted by most Ethernet.

What is a LAN? LAN (Local Area Network) refers to a computer group interconnected by multiple computers in a certain area. Generally, it is within a few thousand meters. LAN can realize the functions of file management, application software sharing, printer sharing, scheduling in the working group, e-mail and fax communication services. LAN is closed and can be used by two computers in the office. It can also be composed of thousands of computers in a company.

All computers are organized and connected to each other in a certain form in the network, and they should be in the same building. So as long as the two computers are in the same building and connected to each other, we can say that the two computers form a LAN. It can be said that LAN is generally owned by a department or unit. It is easy to build, maintain and expand the network, and the system flexibility is high. Its main features are as follows: The geographical scope covered is small, which is only connected in a relatively independent local scope, such as one or a centralized building complex. The specially laid transmission medium is used for networking, with high data transmission rate (10Mb / s ~ 10Gb / s).Short communication delay time and high reliability.The LAN can support a variety of transmission media.

The Difference between Ethernet and LAN

After the brief introduction above,we can basically know the difference between Ethernet and LAN. The biggest difference is that Ethernet is actually a form of LAN, but LAN is not necessarily Ethernet. Just because most LAN are Ethernet at present.Generally speaking, LAN, Everyone defaults to Ethernet. It is a kind of Bus-type LAN, which was created by Xerox. There are many ways to realize the topology of LAN, such as star-type, ring-type, bus-type and so on. However, according to the experience over the years, Ethernet, that is, bus-type LAN, is the most successful and widely used. spotocciedump.spoto.net

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