1. Metro/Wide Area Ethernet Part 1: Review of Ethernet Technologies Pierre Thiry, CNIT

2. Part 1: Ethernet: history and new trends (Gbit and 10Gbit Ethernet) Outline: 1.A few historic dates 2.What is IEEE 802.3: 10Base, 100Base, 1000Base and 10000Base 3.CSMA/CD, Hubs & Switches 4.VLAN & Rapid Spanning Tree 5.Metro and Wide Area Ethernet

3. History of Ethernet invented in 1972 by Bob Metcalfe at Xerox PARC DIX Standard first published in 1980 First IEEE 802.3 standard in 1983 (10Base-5) Fast Ethernet 100Base-TX and –FX in 1995 Gigabit Ethernet in 1998-1999 10 Gigabit Ethernet in 2002 (803.ae) Ethernet in the First Mile in 2004 (803.ah)

4. A drawing of the first Ethernet system by Bob Metcalfe

5. General Facts about Ethernet Frame Format - MAC Addressing Encoding (Manchester, 4B/5B, 8B/10B) CSMA/CD (only for half-duplex) not needed for Gigabit Ethernet and above which work at full-duplex only. VLANs tagging IEEE 802.1q 12 bits 4096 possible VLANS.

6. ETHERNET Frame Format

7. Virtual LANs (VLANS) explained

8. OSI Model

9. Ethereal (http://www.ethereal.com)

10. This is the way WAN and LAN are often introduced

11. Schematic of a leased line (T1 or T3)

12. A few good references on Ethernet http://www.ethermanage.com/ethernet/eth ernet.htmlhttp://www.ethermanage.com/ethernet/eth ernet.html http://grouper.ieee.org/groups/802/3/ Cisco CCNA 1 modules 6 & 7