Yintoni i-LAN?
I-LAN ithetha Uthungelwano lweNdawo yeNgingqi.
I-LAN imele i-domain yosasazo, okuthetha ukuba onke amalungu e-LAN aya kufumana iipakethi zosasazo ezithunyelwa naliphi na ilungu.Amalungu eLAN anokuthetha omnye nomnye kwaye anokuseta iindlela zawo zokusebenzisa iikhomputha ezivela kubasebenzisi abohlukeneyo ukuba bathethe ngaphandle kokungena kwi-Intanethi.
1) Uyilo olusisiseko lweLAN
Njengoko kubonisiwe kulo mfanekiso ungasentla, lolona yilo lusisiseko lweLAN.Ukuba kukho izixhobo ezahlukeneyo, kufuneka ufumane idilesi ye-MCA yomnye.
Umzekelo oneenkcukacha: A ithumela ulwazi ku C, kodwa uA akayazi idilesi ye MAC ka C. Ngeli xesha, nge ARP protocol (Address Resolution Protocol;) Ukufumana idilesi ye MAC ka C, A kuqala usasaza isicelo se ARP esiqulathe idilesi ye IP ekujoliswe kuzo zonke izixhobo eziqhagamshelwe hub.Emva kokufumana usasazo, i-C ibuyisela idilesi ye-MAC kwi-A, kunye nezinye izixhobo zilahla ulwazi.Ukuza kuthi ga ngoku, iimeko zokulungiselela unxibelelwano phakathi kwezixhobo zisekiwe.Le nkqubo ingentla inokwenziwa lula ngolu hlobo lulandelayo: A — ARP protocol: isombulula idilesi ye-MAC yethagethi ye-IP — C iyakubuyisela idilesi ye-MAC
Izixhobo ezidityaniswe kwi-hub zikwindawo efanayo yongquzulwano kunye nesizinda sosasazo.Ngenxa yokuba kukho iswitshi enye kuphela, i-domain yongquzulwano yi-domain yosasazo.Ukuqonda okulula kolu luhlu kukuba isixhobo esinye kuphela sinokuthumela isignali ngexesha kunye nezinye izixhobo zinokufumana umqondiso.
2) I-hub sisixhobo somaleko womzimba, oko kukuthi, umaleko wokuqala we-OSI.Isetyenziswa ikakhulu ukufumana, ukubuyisela, ukukhulisa, kunye nokuthumela imiqondiso.Xa isibini esijijekileyo kunye ne-fiber optical isetyenziselwa ukuhambisa iimpawu, kunye nokunyuka komgama, iimpawu ziya kuba buthathaka kwaye zibangele ukuphazamiseka.Ukuphazamiseka kwesignali kuya kubangela ukuba idatha yokudlulisa ingabonakali, kwaye ekugqibeleni ibangele ukuphazamiseka kwesignali.Ngoncedo lwe-hub, umqondiso unokuhamba ngakumbi;Ngexesha elifanayo, i-hub ineendlela ezininzi zokunxibelelana, ezinokwandisa inani lee-terminals kunye nobukhulu be-LAN.
Ingxaki: Zonke izixhobo ezikwihabhu enye zabelana nge-bandwidth.Ukuba inani lezixhobo likhulu kakhulu, liya kubangela ukuxinana kwekhonkco kwaye, kwiimeko ezinzima, isaqhwithi sosasazo.
Inkqubela phambili: I-domain enkulu yengxabano inokwahlulwa ibe yimimandla emininzi yokungqubuzana encinci ngokusebenzisa ukutshintshwa, okunokunciphisa umda we-conifction domain kunye nokunciphisa ukudibanisa kwedatha.
Oku ngasentla yingcaciso yolwazi lwe-ONU LAN eziswe kuwe yi-Shenzhen HDV Phoelectron Technology Co., Ltd. I-Shenzhen Haidiwei Optoelectronics Technology Co., Ltd.izixhobo zonxibelelwano.