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Rivier College, CS699 Professional Seminar Introduction to the Gigabit-Ethernet by Yun Qi Source : http://www.mcinfo.com What is Gigabit Ethernet Gigabit Ethernet is an extension to the 10 and 100 Mbps IEEE 802.3 standards.

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Introduction to the gigabit ethernet l.jpg

Rivier College, CS699 Professional Seminar

Introduction to the Gigabit-Ethernet

by Yun Qi

Source : http://www.mcinfo.com


What is gigabit ethernet l.jpg
What is Gigabit Ethernet

  • Gigabit Ethernet is an extension to the 10 and 100 Mbps IEEE 802.3 standards.

  • Gigabit Ethernet is a connectionless protocol that each Ethernet frame contains a destination address, and is routed through the network.


Gigabit ethernet system layers l.jpg
Gigabit Ethernet System Layers

  • Physical Layer

    - 1000Base-X

    - 1000Base-T

  • MAC Layer

    - Carrier Extension

    - Packet Bursting


Gigabit media independent interface gmii l.jpg
Gigabit Media Independent Interface (GMII)

Gigabit Ethernet Protocol Architecture


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GMII (continued)

  • The GMII is divided into three sublayers:

    - PCS (Physical Coding Sublayer)

    - PMA (Physical Medium Attachment)

    - PMD (Physical Medium Dependent)


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Gigabit Ethernet Migration

Gigabit Ethernet LAN


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Topologies

  • Upgrading server-switch connection.

  • Upgrading switch-switch connection.

  • Upgrading a fast Ethernet backbone.

  • Upgrading a shared FDDI backbone.

  • Upgrading high performance workstations.









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Summary

  • Advantages

    - Gigabit Ethernet provides high speed server access.

  • Disadvantages

    - Gigabit Ethernet lacks the ability to control QoS at the hardware level.

    - Gigabit Ethernet experiences inherent redundancy.


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