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Metro/Wide Area Ethernet

Metro/Wide Area Ethernet. Part 1: Review of Ethernet Technologies Pierre Thiry, CNIT. Part 1: Ethernet: history and new trends (Gbit and 10Gbit Ethernet). Outline: A few historic dates What is IEEE 802.3: 10Base , 100Base, 1000Base and 10000Base CSMA/CD, Hubs & Switches

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Metro/Wide Area Ethernet

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  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: • A few historic dates • What is IEEE 802.3: 10Base , 100Base, 1000Base and 10000Base • CSMA/CD, Hubs & Switches • VLAN & Rapid Spanning Tree • 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/ethernet.html • http://grouper.ieee.org/groups/802/3/ • Cisco CCNA 1 modules 6 & 7

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