Iqonde ngqo
Ukushintshwa okuqondile kwe-Ethernet kungaqondakala njengokushintshwa komugqa matrix ngemigqa ye-crisscross phakathi kwamachweba. Lapho ipakethe ledatha litholwa ethekwini lokufaka, inhloko yephakethe liyahlolwa, ikheli lepakethi litholwa, ithebula lokusesha langaphakathi liyaqalwa, futhi i-Port Port Port ehambisanayo iyaguqulwa. Iphakethe ledatha lixhumeke ekuxhumaneni kokufaka nokukhipha, futhi iphakethe ledatha lixhunywe ngqo kwi-Port ehambisanayo ukuze ubone umsebenzi wokushintsha. Ngoba akudingi ukugcinwa, ukubambezeleka kuncane kakhulu futhi ukushintshana kushesha kakhulu, okuwusizo lwayo. Okubi ukuthi njengoba okuqukethwe kwepakethe ledatha akugciniwe ngokushintsha kwe-Ethernet, akunakwenzeka ukubheka ukuthi ngabe iphakethe ledatha elidlulisiwe alilungile yini, futhi amandla okutholwa kwephutha awanakunikezwa. Ngoba asikho isilondolozi, amachweba okufaka / okuphumayo wejubane elihlukile awakwazi ukuxhumeka ngqo, futhi kulula ukulahlekelwa.
Gcina futhi phambili
Isitolo kanye nemodi yokudlulisa imodi yesicelo emkhakheni wamanethiwekhi ekhompyutha. Kuqala kugcina iphakethe ledatha le-Port Port, bese wenza i-CRC (i-Cyclic Redundancy CODE CODE CODE), ikhipha ikheli lepakethe ledatha ngemuva kokucubungula ipakethe lephutha, futhi likuguqula libe yipakethe lokuphuma ukuze lithumele iphakethe lethebula. Ngenxa yalokhu, ukubambezeleka kwesitoreji nokudlulisela phambili ekucutshungweni kwedatha kukhulu, okuyinto ukushiyeka kwayo, kepha kungathola kahle amaphakethe wedatha afaka inkinobho futhi athuthukise kakhulu ukusebenza kwenethiwekhi. Okubaluleke kakhulu ukuthi kungasekela ukuguqulwa phakathi kwamachweba wejubane elihlukile futhi kugcinwe umsebenzi wokubambisana phakathi kwamachweba aphezulu namachweba aphansi.
Ukuhlukaniswa
Lesi yisisombululo phakathi kokuqala kokuqala. Ihlola ukuthi ubude bephakethe ledatha lanele ngamabhayithi angama-64. Uma kungaphansi kwamabhayithi angama-64, kusho ukuthi yiphakethe elingamanga futhi iphakethe lilahliwe; Uma kukhulu kunama-byte angama-64, iphakethe lithunyelwa. Le ndlela ayinikezi ukuqinisekiswa kwedatha. Ijubane layo lokucubungula idatha lishesha kunokugcina nokuthumela phambili, kepha kancane kunokudlula okuqondile. Kwethulwa ukushintshwa kwe-HirSchman Shintsha.
Ngasikhathi sinye, ukushintshwa kweHirschman kungadlulisela idatha phakathi kwamachweba amaningi. I-Port ngayinye ingabhekwa njengengxenye ezimele yenethiwekhi engokomzimba (Qaphela: Ingxenye yenethiwekhi engeyona-i-IP), kanye namadivayisi wenethiwekhi axhunywe kuwo angajabulela wonke umkhawulokudonsa ungazimele ngaphandle kwamanye amadivaysi. Lapho i-node a ithumela idatha ku-node d, uNode B angathumela idatha kwi-node c ngasikhathi sinye, futhi bobabili bane-bandwidth ephelele yenethiwekhi futhi babe nokuxhumeka kwabo okugcwele. Uma kusetshenziswa i-10mbps ethernet switch, ithrafikhi ephelele yokushintsha ilingana ne-2x10mbbps = 20mbps. Lapho kusetshenziswa i-10mbsPS eyabiwe i-hub, ithrafikhi ephelele ye-hub ngeke yedlule i-10Mbps.
Ngamafuphi,IHirschman ShintshaIngabe idivaysi yenethiwekhi engaqedela umsebenzi wokuhlanganisa nokufaka amafreyimu wedatha ngokusekelwe ekuqasheni ikheli le-MAC. I-Hirschman Switch ingafunda amakheli e-MAC futhi ayigcine etafuleni lekheli langaphakathi, futhi liqonde ngqo kwelitshe ngokushintsha kwesikhashana phakathi komsunguli kanye nomukeli wethagethi yohlaka lwedatha.
Isikhathi sePosi: Dece-12-2024