Uyini umehluko phakathi kokushintsha kweLayer 2 kanye neLayer 3?

1. Amazinga ahlukene okusebenza:

Izishintshi ze-Layer 2sebenza kusendlalelo sesixhumanisi sedatha, futhiUngqimba 3 amaswishisebenza kusendlalelo senethiwekhi.Ukushintsha kwesendlalelo sesi-3 akuphumeleli nje kuphela ukudlulisela phambili amaphakethe edatha ngesivinini esiphezulu, kodwa futhi kuzuzisa ukusebenza kahle kwenethiwekhi ngokwemibandela yenethiwekhi eyahlukene.

 

2. Umgomo uhlukile:

Umgomo weswishi yongqimba 2 ukuthi uma iswishi ithola iphakethe ledatha embotsheni ethile, izoqale ifunde ikheli lomthombo we-MAC ephaketheni, bese ifunda ikheli le-MAC okuyiwa kulo ephaketheni, bese ibheka imbobo ehambisanayo ithebula lamakheli., uma kukhona imbobo ehambisana nekheli le-MAC okuyiwa kulo kuthebula, kopisha iphakethe ledatha ngqo kulesi sikhungo.Umgomo we-Layer 3 switch ulula, okungukuthi, umzila owodwa ushintshaniswa izikhathi eziningi.Ngokuvamile, iwumzila wokuqala womthombo uye endaweni oya kuyo.Umthombo wendawo oya kuyo ungashintshwa ngokushesha.

 

3. Imisebenzi ehlukene:

Iswishi Yesendlalelo 2 isekelwe ekufinyeleleni kwekheli le-MAC, idlulisela idatha kuphela, futhi ayikwazi ukulungiselelwa ngekheli lasesizindeni se-inthanethi, kuyilapho iswishi Yesendlalelo sesi-3 ihlanganisa ubuchwepheshe bokushintshwa kwe-Layer 2 nomsebenzi wokudlulisela u-Layer 3, okusho ukuthi iswishi Yesendlalelo sesi-3 ngokusekelwe ku-Layer 2 switch.Umsebenzi womzila wengezwe kulokhu okungenhla, futhi amakheli e-IP ama-vlans ahlukene angacushwa, futhi ukuxhumana phakathi kwama-vlans kungenziwa ngokusebenzisa umzila wezingqimba ezintathu.

 

4. Izinhlelo zokusebenza ezehlukene:

Amaswishi Esendlalelo sesi-2 asetshenziswa ngokuyinhloko kungqimba yokufinyelela kunethiwekhi nakusendlalelo sokuhlanganisa, kuyilapho amaswishi Esendlalelo sesi-3 asetshenziswa kakhulu kusendlalelo esiyinhloko senethiwekhi, kodwa kukhona nenani elincane lamaswishi e-Layer 3 asetshenziswa kusendlalelo sokuhlanganisa.

 

5. Amaphrothokholi asekelwayo ahlukile:

Amaswishi Esendlalelo sesi-2 asekela isendlalelo esibonakalayo kanye namaphrothokholi esendlalelo sesixhumanisi sedatha, njengamaswishi e-Ethernet namaswishi Esendlalelo sesi-2.I-HUB inemisebenzi efanayo, kuyilapho amaswishi e-Layer 3 esekela isendlalelo esibonakalayo, isendlalelo sesixhumanisi sedatha kanye nezivumelwano zongqimba lwenethiwekhi.

I-L3 Fiber Switch


Isikhathi sokuthumela: Sep-16-2022