Xa wena (okanye i-ntwork) idinga ikhefu ye-crossover
Ikhefu ye-crossover, ebizwa ngokuba yikhebula eliwela ngapha nangapha , idibanisa izixhobo zombane ze- Ethernet . Ziye zadalwa ukuxhasa uxhumano lwe-host-host-hosting kwiimeko apho isixhobo esiphakathi esifana ne- router yenethiwekhi asikho.
Iikhowudi zeCrossover zibukeka zifana nezicwangciso eziqhelekileyo, ngokuchanekileyo (okanye i-Ethernet) ze-Ethernet zize zithelekiswe.
Crossover vs Straight Through Cable
Intambo eqhelekileyo, i-patch isetyenziselwa ukudibanisa iintlobo ezahlukeneyo zeekhompyutha ndawonye, ​​njengekhomputha kumnatha womnatha. Ikhefu le-crossover lichasene-lidibanisa iifowuni ezimbini zohlobo olufanayo.
Iziphelo zekhefu zentambo zingabanjelwa ngandlela naluphi na uhlobo, zide ziphela ziphela ziphela. Xa kuthelekiswa ngqo ngqo kwiikhomputha ze-Ethernet, i-wiring yangaphakathi yekhefu ye-crossover ibuyisela ukuthumela nokufumana iimpawu.
Iifowuni ezifakwe kumbala eziguqulwayo zingabonwa ngoxhumo lwe-RJ-45 kwiphepha ngalinye lomtya:
- Izitshixo eziqhelekileyo zilandelelana ngokufanayo kunye neefowuni ezinemibala ekupheleni kwayo
- Izixhobo zeCrossover zineenkambo zokuqala nezesithathu (ukubala ukusuka kwesobunxele kuya kwesokudla) zawela, kunye neyesibini kunye nesithandathu zawela
Intambo efanelekileyo ye-Ethernet ikhefu iya kugqitywa ngokukodwa ukuze ihlukanise ngokucacileyo. Uninzi lubomvu kumbala kwaye lubuye lube ne "crossover" lugxininiswe kwiphakheji yayo kunye ne-casing casing.
Ngaba Ufuna Ikhefu leCrossover?
Iikhowudi zeCrossover zaziqhele ukusetyenziswa ngabaqeqeshi bezoLwazi ngezoLwazi kwi-1990s nakuma-2000 njengoko iifom ezidumiweyo ze-Ethernet ngelo xesha azizange zixhase ukuxhamla kwekhompyutha ngqo phakathi kwamasethi.
Zomibini imigangatho yokuqala kunye ne-Fast Ethernet yenzelwe ukusebenzisa iifowuni ezithile zombini ukuthumela nokufumana iimpawu. Le migangatho yafuna ukuba iipoppo zimbini zidibanise ngokusebenzisa isixhobo esiphakathi ukukhusela ingxabano ekuzame ukusebenzisa iifoni ezifanayo zozo zombini zithumela kwaye zamukele.
Inxalenye ye-Ethernet ebizwa ngokuba yi-MDI-X inikeza inkxaso efunekayo yokufumana imoto ukukhusela ezi ngxabano zesignali. Ivumela i-interface ye-Ethernet ukuba ichane ngokuzenzekelayo ukuba yiyiphi inqamaniso yesiganeko kwisixhobo kwesinye isiphelo seengcali zeekhephe kwaye ixoxisana nokusetyenziswa kokuthumela nokufumana iifoni ngokufanelekileyo. Qaphela ukuba kuphela kuphela umgca woxhumano olufunekayo ukuxhasa ukuzithobela ngokuzenzekelayo kule nxalenye ukusebenza.
Uninzi lwee-router zasekhaya (kunye nemodeli endala) zibandakanya uxhaso lwe-MDI-X kwi-Ethernet interfaces. I-Gigabit Ethernet nayo yamkela i-MDI-X njengomgangatho.
Iikhowudi zeCrossover zifunwa kuphela xa zidibanisa iidivaysi zabaxumi be-Ethernet apho kungekho nto iqwalaselwe kwiGigabit Ethernet. Izixhobo ze-Ethernet zanamhlanje zibona ngokuzenzekelayo ukusetyenziswa kwezixhobo ze-crossover kwaye zisebenza kunye nazo.
Indlela yokusebenzisa ii-Ethernet Crossover Cables
Iikhowudi zeCrossover kufuneka zisetyenziselwe ukuxhunywa kwenethiwekhi ngqo. Ngenxa yesizathu esichazwe ngasentla, uzama ukuxhuma ikhompyutha kumzila omdala okanye ukutshintsha inethiwekhi ngekhefu ye-crossover endaweni yekhefu eqhelekileyo, inokuthintela ikhonkco ekusebenzeni.
Ezi zixhobo zingathengwa ngokuthe ngqo ngeendlela ezahlukeneyo zeekhompyutha. Ababhishobhi kunye nabanye abaqeqeshi be-IT banokukhetha ukuzenza izixhobo zabo zokuhlala.
Ikhebula elichanekileyo linokuthi liguquke ngokukhawuleza libe yintambo yokukhwela ngokususa isixhobo kunye nokubuyisela kwakhona iifowuni kunye neendlela ezifanelekileyo zokudlulisa nokufumana iingcingo eziwela.