Technology Ethernet kunye nophuhliso yayo

technology Ethernet - yeyona ixhaphakileyo ukuba umbutho kothungelwano zasekuhlaleni. Namhlanje inani labo likhulu kune nani kwezigidi ezihlanu. Xa sincokola ngeekhompyutha, ezo baxhotyiswa amakhadi womnatha, osebenza kwiteknoloji Ethernet, zininzi kakhulu.

Yintoni le ingqiqo ngendlela emxinwa? Lo mgangatho lenethiwekhi, leyo yayisekelwe olwahlulwayo kumsebenzi womnatha pilot Izernet Network. It waphuhliswa Xerox, oko kuphunyezwa kunyaka wesihlanu-asixhenxe, kusekho leminyaka yokugqibela. Nangona le ndlela iye ihlolwe ngaphambili kakhulu kuthungelwano lwerediyo University of Hawaii. Kwathi kwisiqingatha sesibini gqira zenkulungwane yamashumi amabini. Emva koko sebenzisa zonke iintlobo iindlela yofikelelo oluzenzekelayo kwiimeko radio eqhelekileyo. Le ndlela kuthiwa xa Aloha.

Ethernet-technology kunyaka wamakhulu zenkulungwane yamashumi amabini itshintshile. iinkampani Dec, Intel kunye Xerox ngokudibeneyo wadala yapapashwa nomlinganiselo Ethernet 2 womnatha. isiseko saso intambo yafakwa, nezithe kule mihla uguqulelo kakhulu esandukubakho corporate Ethernet standard technology. Yiyo loo nto olu guqulelo kuthiwa Ethernet DIX okanye 2.

Ngokusekelwe kulo mgangatho yaqulunqwa omnye, ekuthiwa IEEE 802,3. Kuninzi ezifanayo yayingaphambi layo, kodwa eyahlukileyo kancinane, obu bugcisa Ethernet usenalo. Nangona kwinguqulelo entsha ngamazinga ahlukeneyo Mac kunye LLC, umninawa wakhe omdala omabini amanqanaba kwadityaniswa zibe ijelo elinye. We DIX-echazwe uguqulelo uqwalaselo lokukhangela protocol leyo version entsha. Kwaye ke aspect yahluke kancinane, Noko ke, ubukhulu isakhelo kwelona qondo zombini nemigangatho efanayo.

Ethernet Heee 802,3 lezobuchwepheshe kudla ngokuthiwa, lo gama i-Ethernet DIX ebizwa nje, kungekho naziphi na iimpawu. Oku kwenziwa ukuze ukwahlula umgangatho omtsha kowangaphambili. Kuxhomekeka loluphi uhlobo bume ngokwasemzimbeni, Ethernet IEEE 802,3 iteknoloji standard unika iindidi ezahlukeneyo (10 Base-5, kunye ne-10 Base-2, 10Base-T Kwakhona s10Base-FL, yaye, ekugqibeleni, 10Base-FB).

Umgangatho, nto leyo wawenza ekuthiwa ngonyaka alithoba-wesihlanu zenkulungwane yamashumi amabini, Fast Ethernet. Kuyinto elungileyo, ukuba kuthi ukuba akangaphandle ngeendlela ezininzi. Oku kungqina ukuba inkcazo elula obupheleleyo eziphambili 802,3 - icandelo 802.3i. Ngokufanayo, enye omtsha wavunywa ngo 1998 - Gigabit Ethernet, elichazwa kwelinye icandelo 802.3z kolu xwebhu esisiseko.

Ukuthumela nokufumana inkcazelo lokubini intambo bonke umaleko ebonakalayo kwezobuchwephesha Ethernet, nto leyo inika bandwidth of megabits ezilishumi yesibini nganye, kusetyenziswa ikhowudi Manchester. Ngokupheleleyo yonke imigangatho Ethernet, kunye yokugqibela ezimbini, indlela twatse isetyenziselwa eliphakathi ukwahlukana ngexesha zodluliselo lwedata. Ibizwa CSMA / CD.

Sonke yabaleka phezu yonke imbali ubuchwepheshe. Kwiintsuku ezimbalwa ezidlulileyo yena sele iminyaka emashumi mane ubudala. Nakuba kunjalo, ukuba usathandwa. Namhlanje, ke, kukho ubugcisa obutsha kwaye lula ngakumbi, kodwa mhlawumbi, iteknoloji Ethernet iya kuba yiminyaka emininzi emininzi ukubonelela uthungelwano lwethu kuba uthembekile, pfunaka, esetyenziswa ngempumelelo iminyaka engamashumi amaninzi.