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Gigabit Ethernet

Gigabit Ethernet

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Gigabit Ethernet

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  1. Gigabit Ethernet Zach Kokkeler and Jeff Schroeder

  2. Early Adoption • High capacity backbone networks • Not widely used by consumers • Too expensive for desktop use • GbE could not be utilized (PCs too slow) • 20% - 30% network utilization • 200Mbps actual throughput • Unreliable over Cat5 cables

  3. Market Growth • Prices have dropped dramatically • Implementation over Cat5e cabling • Faster PCs WideBand Corporation www.wband.com

  4. Increased Productivity • Through a multitude of technological advances, GbE has provided great advances in data transfer rates. WideBand Corporation www.wband.com

  5. Uses for GbE • Digital photography • Satellite imaging • Faster database access • Streaming video • Real-time file transfers • Back-ups

  6. Media Types • 1000BASE-SX and 1000BASE-LX over fiber. • 1000BASE-T over copper. (1000BASE-CX) • Switched full-duplex only.

  7. GbE over Cat5e • Older standards (10BASE-T and 100BASE-TX) did not use all four pairs of wires. • 5-level pulse amplitude modulation (PAM-5) allows multiple signals to be sent. 125 megapulses per second. Wikipedia

  8. Optical • Optical wiring uses fibers of glass or plastic • Total internal reflection allows rays of light to travel through the core, reflecting off the cladding.

  9. Beyond GbE • Seven different media types • 10GBASE-T over Cat5e, Cat6, and Cat7 • All other media types rely on fiber-optic transmission.

  10. 10 GbE and 40 GbE • By using multiplexers with optical wiring, speeds up 40 GbE may be obtained. • With wavelength division multiplexing, separate colors are multiplexed, sent together, and de-multiplexed at the receiving end.

  11. 100 GbE • Recent technologies have broken the 100 GbE barrier.

  12. Sources • http://www.nanog.org/ • http://www.wikipedia.org/ • http://www.networkworld.com/ • http://www.hardwaresecrets.com • http://www.internetnews.com