Efaneti luso ndi chitukuko

Efaneti luso - ambiri kwa gulu la pa Intaneti wamba. Today chiwerengero chawo kuposa chithunzi cha miliyoni asanu. Ngati ife kulankhula za makompyuta, zomwe zili ndi makadi network ukugwira ntchito pa luso Efaneti, iwo nthawi zambiri.

Kodi mfundo imeneyi m'njira yopapatiza? Izi muyezo Intaneti, zomwe zinali zochokera katswiri maukonde Izernet Network. Iwo anayamba kupanga ndi Xerox, izo yagwiridwira m'chaka sevente-faifi, kudakali atumwi wotsiriza. Ngakhale njira imeneyi chayesedwa kale kwambiri mu maukonde wailesi ya University of Hawaii. Izo zinachitika mu theka lachiwiri la zaka zao za sikisite zaka mazana makumi awiri. Ndiye ife ntchito onse njira kupeza mwachisawawa kwa malo wamba wailesi. njira imeneyi imatchedwa pamene Aloha.

Efaneti-luso mu chaka eightieth zaka mazana makumi awiri zasintha. Companies mu December, Intel ndi Xerox ichitikire analenga ndi lofalitsidwa muyezo Efaneti 2 maukonde. maziko ake anali chingwe coaxial, amene wakhala Baibulo zaposachedwapa wa kampani Efaneti luso muyezo. Ndicho chifukwa Baibulo iyi akutchedwa Efaneti DIX kapena 2.

Kuchokera pa mfundo imeneyi anayamba kupanga wina, wotchedwa IEEE 802,3. Iye amafananadi ndi kuloŵedwa m'malo, koma yosiyaniranapo, izi luso Efaneti ake. Ngakhale Baibulo latsopanoli ndi magulu Mac ndi LLC, mchimwene wake milingo onse awiri ophatikizana mu njira imodzi. Ife DIX chimatanthauza macheke protocol kasinthidwe lomwe si Baibulo latsopanoli. Ndi makulidwe kusiyana pang'ono Komabe, pazipita ndi osachepera chimango kukula kwake mfundo onse chomwecho.

Efaneti IEEE 802,3 luso ambiri amati, pamene Efaneti DIX otchedwa chabe, popanda zizindikiro zilizonse. Izi zachitika kuti kusiyanitsa mfundo yatsopano ku imodzi yapita. Malinga ndi zimene mtundu wa chilengedwe thupi ntchito, Efaneti IEEE 802,3 luso muyezo amapereka yofanana zosiyanasiyana (10 Base-5, pamodzi ndi 10 Base-2, 10Base-T komanso s10Base-FL, ndipo potsiriza, 10Base-FB).

The muyezo umene Analeredwa otchedwa chaka nainte-wachisanu zaka mazana makumi awiri, Fast Efaneti. M'pomveka kunena kuti si wodzilamulira mu zinthu zambiri. Izi zikugwirizana ndi mfundo kuti ikulongosola yosavuta waukulu womuyenerera 802,3 - gawo 802.3i. Mofananamo, munthu watsopano anavomerezedwa mu 1998 - Gigabit Efaneti, amene akambidwa mu gawo lina 802.3z chikalata ichi zofunika.

Kutumiza ndi kulandira mauthenga bayinare pa chingwe kwa onse wosanjikiza thupi Efaneti luso, amene amapereka bandiwifi wa megabits khumi pa chachiwiri, ntchito Manchester code. Mwamtheradi mfundo zonse Efaneti, pamodzi ndi yotsirizira awiri ofanana njira ntchito kulekana sing'anga pa kufala deta. Njirayi imatchedwa CSMA / CD.

Tonse anagunda mbiri yonse ya luso. A masiku angapo apitawo iye anali kale usinkhu wa zaka forte. Ngakhale izi, komabe otchuka. Lero, ndithudi, pali latsopano ndi yabwino luso, koma zambiri, Efaneti luso adzakhala zaka zambiri kupereka zopezera wathu chifukwa ndi odalirika, othandiza bwino ntchito kwa zaka zambiri.