• It was commercially introduced in 1980 and first standardized in 1983 as IEEE 802.3.


  • Ethernet is the traditional LAN technology for connecting devices in a wired local area network (LAN)


  • It uses IEEE 802.3 Standard in LAN data transmission.
  • It uses CSMA/CD mechanism (carrier Seen Multiple Access/Collision Detect) in data transmission.
  • Ethernet is a wired networking technology commonly used in local area networks, but may also be applied with metropolitan area networks and wide area networks as per need.
  • Ethernet has largely replaced other wired LAN technologies such as Token Ring, FDDI etc. 
  • Ethernet uses Twisted pair cable, Coaxial cable(mostly) and Fiber optic cable.
  • The transmission speed in Ethernet is 3 Mbits to 400 Gbits.
  • The data format in Ethernet is Frame.


  • Working Mechanism : 
    • When a station or node wants to transmit data in a network, it first listens to the cable or medium. If the cable is busy, the station waits until it goes idle, otherwise it transmits data immediately.
    • If two or more stations simultaneously begin transmitting on an idle cable they will collide. Then, all colliding stations then terminate their transmissions immediately, wait a random time and repeat the whole process all over again.


  • The most common use for an Ethernet is to connect a WiFi router or Modem to the internet entry through port or telephone line.



Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.