Itekhnoloji yeUluhlu lwesi-3iswitshi ikhula ngakumbi kwaye izicelo zayo ziya ziba zibanzi ngakumbi.Kuluhlu oluthile, luneenzuzo ezininzi kunee-routers, kodwa kusekho umehluko omkhulu phakathi kwe-switch-layer switch kunye ne-router.Kwinethiwekhi yendawo yendawo, ukutshintshwa kweentambo ezintathu kuneenzuzo ezicacileyo.

1. I-bandwidth yothumelo phakathi kwee-subnets inokunikezelwa ngokungekho mthethweni:

Kwi-router yendabuko, i-port ye-serial nganye inokudibaniswa kwi-subnet, kwaye izinga le-subnet elithunyelwa nge-router linqunyelwe ngokuthe ngqo kwi-bandwidth ye-interface.Umahluko kukuba umaleko wesithathu iswitsha ichaza izibuko ezininzi njengothungelwano lwenyani (VLAN), isebenzisa inethwekhi enenyani eyenziwe ngamazibuko amaninzi njengojongano lomsebenzi womnatha wenyani, kwaye ithumela ulwazi kuyo kumaleko wesithathu ngokusebenzisa amazibuko aquka izibuko. inethiwekhi.Ukutshintsha, kuba inani lamachweba lingachazwa ngokungenasizathu, i-bandwidth yokudlulisa phakathi kwee-subnets ayikhawulelwanga.

2. Ulwabiwo olufanelekileyo lwemithombo yolwazi

Ngenxa yokuba inkqubo yenethiwekhi edityaniswe yi-third-tier switch isetyenzisiwe, ireyithi yemithombo ye-subnet yokufikelela ayifani nesantya sobutyebi bomnatha wehlabathi, ngoko ke akunantsingiselo ukuseta iseva eyahlukileyo.Ngokuseka ngokuthe ngqo iqela lomncedisi kwinethiwekhi yehlabathi, phantsi kwesiseko sokuqinisekisa izinga lokudluliselwa kwe-intranet ye-broadband, ayikwazi ukugcina iindleko kuphela, kodwa iphinde isebenzise ngokupheleleyo inzuzo yesofthiwe kunye nezixhobo ze-hardware ze-server ye-cluster, kwaye inokuqwalasela ngakumbi kwaye ilawule imithombo yolwazi eyahlukeneyo.Le ngxaki kunzima ukuyisombulula kwinethiwekhi ye-router.

3. Ukunciphisa iindleko

Kuyilo lwenethiwekhi yeshishini, kuba abantu ngokuqhelekileyo basebenzisa kuphela iileyibhile ezimbini zokutshintsha ukwenza i-subnet ye-domain yosasazo efanayo, ii-routers zisetyenziselwa ukudibanisa i-subnet nganye, ukwenza inethiwekhi yeshishini yenze i-intranet, kwaye ii-routers zibiza kakhulu, ngoko ke amashishini axhasa ii-intranets Inethiwekhi ayikwazi. ukunciphisa iindleko zezixhobo.Ngoku, kwinkqubo yothungelwano olungaphakathi, abantu basebenzisa umaleko wesithathu iswitshi kuyilo womnatha, kungekuphela nje ukuba i-subnet enenyani yahlulwe ngokungenasizathu ibe yi-subnets, kodwa inokugqiba unxibelelwano phakathi kwee-subnets ngokusebenzisa umsebenzi woluhlu oluthathu lwendlela yokutshintsha , Oko kukuthi, ukusekwa kwee-subnets kunye ne-inline subnets kunokugqitywa ngokutshintshwa, okusindisa kakhulu ii-routers ezibizayo.