Abasebenzisi abangabe-VLAN efanayo kunethiwekhi ebukhoma bangase baxhunywe kumaswishi ahlukene, futhi kungase kube ne-VLAN engaphezu kweyodwa kuyo yonke iswishi. Ukuze uxhumane nabasebenzisi, ukuxhumana phakathi kwamaswishi kufanele kukwazi ukuhlonza nokuthumela amafreyimu wedatha wama-vlans amaningi ngesikhathi esisodwa. Ngokusho kwento yokuxhumeka kwesixhumi esibonakalayo kanye nokucutshungulwa kwamafreyimu wedatha athunyelwe nawamukelwe, kunezinhlobo eziningi ze-interface ye-vlans ukuze zivumelane nokuxhumana okuhlukile nokuxhumana.
Abathengisi abahlukene bachaza uhlobo lwesixhumi esibonakalayo se-VLAN ngendlela ehlukile. Amadivayisi weHuawei asebenzisa izinhlobo ezintathu ezijwayelekile zesixhumi esibonakalayo se-VLAN: Ukufinyelela, i-Trunk, ne-Hybrid.
Ukufinyelela esibonakalayo
Isixhumi esibonakalayo sokufinyelela ngokuvamile sisetshenziselwa ukuxhuma kumatheminali abasebenzisi (njengabasingathi babasebenzisi namaseva) angababoni omaka, noma abangadingi ukuhlukanisa amalungu e-VLAN.
Kunethiwekhi yokushintsha ye-VLAN, amafreyimu edatha e-Ethernet afika ngamafomu amabili alandelayo:
Uhlaka olungamakiwe: Uzimele wangempela ongenawo umaka we-VLAN we-4-byte.
Uhlaka olumakiwe: Uhlaka olungezwe kumaka we-VLAN we-4-byte.
Ezimweni eziningi, isixhumi esibonakalayo sokufinyelela singathumela futhi samukele kuphela amafreyimu Angamakakiwe, futhi singangeza umaka we-VLAN ohlukile kumafreyimu Angamakakiwe kuphela. Iswishi icubungula ozimele abamakiwe kuphela. Ngakho-ke, isixhumi esibonakalayo sokufinyelela sidinga ukwengeza omaka be-VLAN kozimele abatholiwe, futhi i-VLAN ezenzakalelayo kufanele ilungiselelwe. Ngemva kokuthi i-VLAN emisiwe isilungisiwe, isixhumi esibonakalayo sokufinyelela siyengezwa ku-VLAN.
Lapho isixhumi esibonakalayo sokufinyelela sithola ifremu ene-Tag futhi ifreyimu iqukethe i-VID ne-PVID efanayo, isixhumi esibonakalayo sokufinyelela singathola futhi sicubungule uhlaka.
Ngaphambi kokuthumela uhlaka olune-Tag, isixhumi esibonakalayo sokufinyelela sihlubula i-Tag.
I-Trunk interface
Izixhumi ezibonakalayo ze-trunk zisetshenziselwa ukuxhuma amaswishi, amarutha, ama-aps, namatheminali ezwi angathumela futhi amukele ozimele Abamakiwe nabangamakiwe ngesikhathi esisodwa. Ivumela amafreyimu ama-vlans amaningi ukuthi adlule nomaki, kodwa amafreyimu okungeye-VLAN ezenzakalelayo kuphela avunyelwe ukuthunyelwa kusukela kulesi sixhumi esibonakalayo ngaphandle kwamathegi (okungukuthi, omaka bayasuswa).
I-VLAN ezenzakalelayo ku-interface ye-Trunk nayo ichazwa ngokuthi i-VLAN yomdabu ngabanye abathengisi. Uma isixhumi esibonakalayo se-Trunk sithola ifremu Engamakiwe, yengeza umaka ohambisana ne-Native VLAN kufreyimu.
I-interface ye-hybrid
Izimbobo ezihlanganisiwe zingasetshenziselwa ukuxhuma amatheminali abasebenzisi (njengabasingathi babasebenzisi namaseva) kanye namadivayisi enethiwekhi (njengamahabhu) angakwazi ukubona omaka, amaswishi, amarutha, namatheminali ezwi nama-app angathumela futhi amukele ozimele abamakiwe nabangamakiwe Ngisikhathi esifanayo. Ivumela ozimele abanamathegi ama-vlans amaningi ukuthi badlule futhi ivumela ozimele abathunyelwe kusukela kulesi sixhumanisi ukuthi baphathe omaka bama-vlans athile (okungukuthi, ozimele abangenawo omaka) namafreyimu angenawo omaka bamanye ama-vlans (okungukuthi, ozimele abangenawo omaka) njengoba kudingeka.
Izixhumanisi zeHybrid kanye nezindawo zokusebenzelana ze-Trunk zingasetshenziswa ezimweni eziningi zohlelo, kodwa ukuxhumana kwe-Hybrid kufanele kusetshenziswe kwezinye izimo zohlelo lokusebenza. Isibonelo, ku-QinQ eguquguqukayo, amaphakethe avela kuma-vlans amaningi kunethiwekhi yomhlinzeki wesevisi adinga ukukhumula omaka be-VLAN bangaphandle ngaphambi kokungena kunethiwekhi yomsebenzisi. Kulokhu, i-Trunk interface ayikwazi ukwenza lo msebenzi, ngoba i-Trunk interface ingavumela kuphela amaphakethe asuka ku-VLAN ezenzakalelayo yesixhumi esibonakalayo ukuthi adlule ngaphandle kwamathegi e-VLAN.
Okungenhla kunjaloI-HDVPhoi-eletron I-Technology Ltd. ukuletha amakhasimende mayelana nesihloko sesethulo "sokushintsha ku-interface efanele", futhi inkampani yethu ingumkhiqizo okhethekile wabakhiqizi benethiwekhi yamehlo, imikhiqizo ehilelekile hhayi uchungechunge lwe-transceiver kuphela, uchungechunge oluthe xaxa lwe-ONU, uchungechunge lwamamojula optical, uchungechunge lwe-OLT, njll. ., kukhona ukucaciswa okuhlukahlukene kwemikhiqizo yezidingo ezahlukahlukene zesigcawu sokusekelwa kwenethiwekhi, Siyakwamukela ukubuza.
