Welcome to
Charles Spurgeon's Ethernet Web Site

This site provides extensive information about Ethernet (IEEE 802.3) local area network (LAN) technology. This includes the original 10 Megabit per second (Mbps) system, 100 Mbps Fast Ethernet (802.3u), 1000 Mbps Gigabit Ethernet (802.3z/802.3ab), and 10 Gigabit Ethernet (802.3ae).

The Quick Reference Guides contain the official half-duplex mode configuration rules for the 10 and 100 Mbps Ethernet media types, as published in the IEEE 802.3 standard. Half-duplex mode Ethernet is another name for the original Ethernet mode of operation which uses the CSMA/CD media access protocol and repeater hubs. Full-duplex Ethernet is based on switching hubs and does not use CSMA/CD, therefore full-duplex Ethernet links do not depend on the round trip signal timing guidelines described in these configuration guides.

Included in the Quick Reference Guides are the configuration rules for combining the 10 and 100 Mbps Ethernet media types. This makes it possible for you to verify the configuration of any half-duplex mode Ethernet system, to make sure that it meets the official half-duplex timing guidelines and that it will operate correctly.

The on-line Quick Reference Guides provided here contain over 150 pages of concise technical information, including more than 60 figures and tables. Taken all together, the Quick Reference Guides provide a complete configuration manual for 10 Mbps and 100 Mbps half-duplex Ethernet, available for free on the Web!

• Quick Reference Guides to 10 Mbps Ethernet
  The Quick Reference Guides for 10 Mbps Ethernet include the complete set of configuration guidelines for the 10 Mbps half-duplex mode Ethernet system.
  
  
• Quick Reference Guides to 100 Mbps Fast Ethernet
  The Quick Reference Guides for 100Mbps Fast Ethernet include the complete set of configuration guidelines for the 100 Mbps half-duplex mode Ethernet system.
  
  
• Multi-Segment Configuration Guidelines
  from "Ethernet, The Definitive Guide," provides the complete set of 10, 100, and 1000 Mbps Ethernet half-duplex configuration rules in a single chapter.

Access to a wide range of technical information on Ethernet.