Uma sisebenzisa isingathekiso esivame kakhulu, umsebenzi weswishi ukuhlukanisa imbobo yenethiwekhi ibe izimbobo zenethiwekhi eziningi ukuze kudluliswe idatha, njengokuphambukisa amanzi ukusuka epayipini elilodwa lamanzi ukuya kumapayipi amanzi amaningi ukuze abantu abaningi bawasebenzise.
"Ukugeleza kwamanzi" okudluliselwa kunethiwekhi kuyidatha, eyakhiwe ngamaphakethe wedatha ngayinye.Iswishi idinga ukucubungula iphakethe ngalinye, ngakho-ke umkhawulokudonsa we-backplane yokushintsha umthamo omkhulu wokushintshana kwedatha, futhi izinga lokudlulisela iphakethe liyikhono lokucubungula lokwamukela idatha bese uyidlulisela.
Uma amanani omkhawulokudonsa wendiza ebuyela emuva emakhulu nezinga lokudlulisela iphakethe, aqina amandla okucubungula idatha, futhi ayanda izindleko zeswishi.
Umkhawulokudonsa wendiza yasemuva:
I-backplane bandwidth ibizwa nangokuthi umthamo we-backplane, echazwa njengenani eliphakeme ledatha elingasingathwa idivayisi yokucubungula, ikhadi lesixhumi esibonakalayo kanye nebhasi ledatha yokushintsha.Imele amandla okushintshana kwedatha iyonke yeswishi, ku-Gbps, ebizwa ngokuthi i-switching bandwidth.Ngokuvamile, umkhawulokudonsa wendiza engemuva esingafinyelela kuyo ukusuka kuma-Gbps ambalwa ukuya kumakhulu ambalwa we-Gbps.
Izinga lokudlulisela iphakethe:
Izinga lokudlulisela iphakethe leswishi, elibuye laziwe ngokuthi yi-port throughput, yikhono lokushintshela ekudluliseleni amaphakethe embobeni ethile, ngokuvamile ngama-pps, abizwa ngokuthi amaphakethe ngomzuzwana, okuyinombolo yamaphakethe adluliselwa ngomzuzwana.
Nansi ingqondo yenethiwekhi: Idatha yenethiwekhi idluliselwa ngamaphakethe edatha, aqukethe idatha edlulisiwe, izihloko zozimele, nezikhala zozimele.Isidingo esincane sephakethe ledatha kunethiwekhi ngamabhayithi angama-64, lapho amabhayithi angama-64 eyidatha emsulwa.Ukwengeza unhlokweni wozimele ongu-8-byte kanye negebe lozimele le-12-byte, iphakethe elincane kunethiwekhi lingamabhayithi angu-84.
Ngakho-ke lapho isixhumi esibonakalayo esigcwele se-duplex gigabit sifinyelela isivinini somugqa, izinga lokudlulisela iphakethe liwukuthi
=1000Mbps/((64+8+12) * 8bit)
=1.488Mpps.
Ubudlelwano phakathi kwalokhu okubili:
I-bandwidth ye-switch backplane imelela isamba somthamo wokushintshaniswa kwedatha futhi iyinkomba ebalulekile yezinga lokudlulisela iphakethe.Ngakho-ke indiza engemuva ingaqondwa njengebhasi lekhompyutha, futhi uma indiza engemuva iphakeme, inamandla ayo amandla okucubungula idatha, okusho ukuthi izinga lokudlulisela iphakethe liphezulu.
Isikhathi sokuthumela: Jul-17-2023