Ethernet has become a factual standard of Local Area Networks.and has been widely used in WAN.MAN and access networks.After the the publication of Giga-bit Ethernet specifications.relevant Giga-bit Ethernet equipments have become the main products that IC and communication factories are trying to produce.This task has done research work and analysis on Giga-bit Ethernet technology,and has developed the 8-ports pure Giga-bit Ethernet switch.The main idea of this essay is as the following:Analysis of layers archtecture of IEEE802.3;Analysis and research of 1000BASE-X,the key point is its ways of coding and their performance;Analysis and research of 1000BASE-T,the main work focus on channel.Trellis coder,Viterbi decoder, and their realization;Design of 8-ports Giga-bit Ethernet switch.Detailed discussion of its application.realization and test has made.Much research work on design methods of its core,controller(CPU),power clock and PCB has analysised as well. |