Skip to main content

Fundamentals of Ethernet

Ethernet is LAN media type that uses CSMA/CD to send information and functions at Data Link Layer of OSI Reference Model. Ethernet media type having different physical topologies but having single logical topology: bus topology. With various physical topologies, we can design this network with different shapes but the communication happens in Bus topology only. It has two versions right now. One of them is DIX version and the second is IEEE version. This tutorial explains various topologies and versions of Ethernet.

Physical Topologies Supported
  1. Bus topology

  2. Star Topology

  3. Point to Point
Uses of Netstat CommandTransport Layer in a Network
PING: Transmit failed. General Failure Destination Net Unreachable
Destination host unreachable Enable Disabled Adapter
Resolve Windows Automatic IP Hard Disk SMART Command Failed Error
Solve TTL Expired in Transit Ping Request Could not Find Host
Two Versions Of Ethernet
  1. DIX Version

    DIX  Ethernet or Ethernet 2 is widely using now. This version does not split Data Link layer into two. Ethernet 2 has frame value more than 1500. This standard is designed by the combined work of three companies. Those companies are DEC, Intel, and Xerox. This standard is named as DIX by taking the first letter from the names of these three companies.

  2. IEEE Version

    This version of Ethernet is defined under IEEE 802.2/3. Here the data link layer is subdivided into LLC and MAC. To read more about it, visit the links below.

    Frame value of IEEE802.3 is less than 1500. This is the major difference between IEEE and DIX versions.

To read more about the devices and protocols work in standard, visit the link below.
Data Link Layer in OSI Reference Model


About Author

My photo
Alex George
Alex George has Engineering graduation in Computer Science and an MBA in Finance. He had been working as a senior Network Engineer for ten years. His specialization is in Cisco products. Traveling is one of his hobbies and visited various places as part of his onsite work. He visited different places as part of his onsite work like New York, Dubai, London, etc. Right now Alex is a director of one of the leading career development firms in India, which trains students for UPSC, SSC, and PSC examinations. He guides a lot of students to get selection for various prestigious institutions like CBI, Income Tax Department, etc. Alex George is a stock market investor and a very active intraday trader. Engineering Background: He has a B.Tech in Computer Science and Engineering and passed different network and security courses like CCNA, CCNP (Security), CEH, and various Microsoft certifications. Finance Background: Alex has an MBA in Finance. He is an active intraday trader and a Share Market Investor. Webmaster Skills: Alex is a blogger since 2004. He has a working knowledge of HTML, CSS, PHP, and JavaScrip.