Ngokuthuthuka okujwayelekile kanye nokusetshenziswa kobuchwepheshe benethiwekhi, ukuthuthukiswa kwamaswishi nakho kube nezinguquko ezinkulu.Ukushintsha kwakuqala kwathuthukiswa kusuka ekushintsheni okulula kakhulu kuya kumaswishi engqimba 2, bese kusuka kungqimba 2 kuya ekushintsheni kwesendlalelo esingu-3.Ngakho, yini aIswishi ye-Layer 3?

Ungqimba 3 amaswishiempeleni ziwubuchwepheshe bokushintsha u-Layer 2 + Ubuchwepheshe bokudlulisa ungqimba 3.Akusho ukuthi kukhona "izingqimba ezintathu" zokushintshwa.Aungqimba 3 shintshaiyiswishi enemisebenzi ethile yerutha.Inhloso ebaluleke kakhulu yeIswishi ye-Layer 3ukwenza lula ukushintshana kwedatha ngaphakathi kwe-LAN enkulu.Umsebenzi womzila enawo futhi uhlinzeka ngezinsizakalo zale njongo, futhi ingahanjiswa kanye bese idluliswa izikhathi ezimbalwa.

Ukushintsha ubuchwepheshe ngomqondo wendabuko kusebenza kungqimba lwesibili lwemodeli evamile yenethiwekhi ye-OSI—ungqimba lwesixhumanisi sedatha, kuyilapho ubuchwepheshe bokushintsha obunezendlalelo ezintathu buqedela ukudluliselwa ngesivinini esiphezulu kwamaphakethe wedatha engxenyeni yesithathu yemodeli yenethiwekhi.Izixhumanisi ngezikhathi ezithile ezifana nokudlulisa iphakethe ledatha ziqedwa ngokushesha ngehadiwe, kodwa izinsizakalo ezifana nokuthuthukiswa kolwazi lomzila, ukugcinwa kwetafula lomzila, ukubala umzila, nokuqinisekisa umzila kuqedwa isofthiwe.Ayikwazi ukubona kuphela umsebenzi womzila wenethiwekhi, kodwa futhi iqinisekisa ukusebenza kwenethiwekhi okungcono kakhulu kwezimo ezihlukene zenethiwekhi.