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 e-LAN anokuthetha omnye nomnye kwaye anokuseta iindlela zawo zokuba iikhomputha ezivela kubasebenzisi abohlukeneyo zincokole 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 A 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 equlathe Idilesi ye-IP ekujoliswe kuyo kuzo zonke izixhobo eziqhagamshelwe kwi-hub. Emva kokufumana usasazo, i-C ibuyisela idilesi ye-MAC ku-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 enye kuphelatshintsha, ummandla wongquzulwano ngummandla wosasazo. 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 zisetyenziselwa ukuhambisa iimpawu, kunye nokunyuka komgama, iimpawu ziya kuba buthathaka kwaye zibangele ukuphazamiseka. Ukuphazamiseka kwesignali kuya kubangela ukuba idatha yokudlulisa ingaqatshelwa, kwaye ekugqibeleni ibangele ukuphazamiseka kwesignali. Ngoncedo lwe-hub, umqondiso unokuhamba ngakumbi; Ngexesha elifanayo, i-hub inamakhonkco amaninzi, anokwandisa 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: Indawo enkulu yongquzulwano inokohlulwa ibe yimimandla emininzi yempixano encinci ngokusebenzisa itshintsha, enokunciphisa umda wesizinda songquzulwano kunye nokunciphisa ukuxinana kwedatha.
Oku kungasentla yingcaciso yolwazi lweI-ONUI-LAN iziswe kuwe yi-Shenzhen HDV Phoelectron Technology Co., Ltd.izixhobo zonxibelelwano.