Introduction to the Gigabit-Ethernet by Yun Qi Source : Rivier College, CS699 Professional Seminar.

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Presentation transcript:

Introduction to the Gigabit-Ethernet by Yun Qi Source : Rivier College, CS699 Professional Seminar

What is Gigabit Ethernet u Gigabit Ethernet is an extension to the 10 and 100 Mbps IEEE standards. u Gigabit Ethernet is a connectionless protocol that each Ethernet frame contains a destination address, and is routed through the network.

Gigabit Ethernet System Layers u Physical Layer Base-X Base-T u MAC Layer - Carrier Extension - Packet Bursting

Gigabit Media Independent Interface (GMII) Gigabit Ethernet Protocol Architecture

GMII (continued) u The GMII is divided into three sublayers: - PCS (Physical Coding Sublayer) - PMA (Physical Medium Attachment) - PMD (Physical Medium Dependent)

Gigabit Ethernet Migration Gigabit Ethernet LAN

Topologies u Upgrading server-switch connection. u Upgrading switch-switch connection. u Upgrading a fast Ethernet backbone. u Upgrading a shared FDDI backbone. u Upgrading high performance workstations.

Ethernet Frame Format with Carrier Extension

Packet Bursting

Server-Switch Connection

Upgrading Switch-Switch Connections

Upgrading the Backbone

Upgrading a FDDI Backbone

Upgrading High Performance Workstations

Summary u Advantages - Gigabit Ethernet provides high speed server access. u Disadvantages - Gigabit Ethernet lacks the ability to control QoS at the hardware level. - Gigabit Ethernet experiences inherent redundancy.