Ethernet Analysis

Ethernet yog tus qauv kev sib txuas lus ntau tshaj plaws uas tau txais los ntawm LAN uas twb muaj lawm. Cov txheej txheem no txhais cov hom cable thiab cov teeb liab ua cov txheej txheem siv hauv cheeb tsam hauv cheeb tsam network (LAN). Ethernet xa cov pob ntawv ntawm cov khoom siv sib txuas ntawm tus nqi ntawm 10 ~ 100Mbps. Twisted khub cable 10 puag t Ethernet tau dhau los ua cov cuab yeej siv Ethernet feem ntau vim nws tus nqi qis, kev ntseeg siab thiab 10Mbps tus nqi. Qhov ncaj qha nthuav dav wireless Ethernet tuaj yeem ncav cuag 11Mbps. Cov khoom muab los ntawm ntau tus neeg tsim khoom siv tuaj yeem siv cov txheej txheem software dav dav rau kev sib txuas lus, nrog kev qhib siab zoo tshaj plaws.

Ethernet yog ib qho kev sib txuas ntawm computer LAN. IEEE 802.3 tus qauv tsim los ntawm IEEE muab cov txheej txheem thev naus laus zis ntawm Ethernet. Nws qhia txog cov ntsiab lus ntawm kev sib txuas, hluav taws xob teeb liab thiab xov xwm nkag mus rau txheej txheej txheem nrog rau txheej txheej ntawm lub cev. Ethernet yog cov cuab yeej siv LAN tshaj plaws. Nws feem ntau hloov lwm cov qauv LAN, xws li lub nplhaib token, FDDI thiab ARCNET.

Tus txheej txheem topology ntawm Ethernet yog tsheb npav topology, tab sis tam sim no ceev Ethernet (100Base-T thiab 1000BASE-T qauv) siv lub hub hloov mus txuas thiab teeb tsa lub network txhawm rau txo qis kev tsis sib haum xeeb thiab txhim kho network ceev thiab ua haujlwm tau zoo. Nyob rau hauv txoj kev no, topology ntawm Ethernet dhau los ua lub hnub qub, tab sis qhov tseeb, Ethernet tseem siv cov tsheb npav topology thiab tsheb npav sib cav ntawm CSMA / CD (Carrier Sense Multiple Access / Collision Detect).

Ethernet yog raws li lub tswv yim tias ntau qhov ntawm cov xov tooj cua hauv lub network xa cov ntaub ntawv. Txhua lub node yuav tsum tau txais cov cable lossis channel xa cov ntaub ntawv, uas qee zaum hu ua ether. (lub npe los ntawm lub xyoo pua 19th physicist' qhov kev xav ntawm electromagnetic radiation nruab nrab - lub teeb ether. yog, qhov chaw nyob MAC tau muab los ntawm cov chaw tsim khoom rau daim npav network, txhawm rau xyuas kom txhua lub tshuab ntawm Ethernet tuaj yeem txheeb xyuas ib leeg. [3] vim Ethernet muaj ntau heev, ntau lub tuam txhab koom ua ke Ethernet phaib ncaj qha rau hauv lub computer motherboard. Nws tau pom tias kev sib txuas lus Ethernet muaj cov yam ntxwv ntawm autocorrelation, uas tseem ceeb heev rau Telecom Communication Engineering.