Abasebenzisi abangabeVLAN enye kuthungelwano oluphilayo banokudityaniswa kwiiswitshi ezahlukeneyo, kwaye kunokubakho ngaphezu kweVLAN enye ngapha kokutshintsha. Ukunxibelelana nabasebenzisi, i-interfaces phakathi kokutshintsha kufuneka ikwazi ukuchonga nokuthumela iifreyimu zedatha yee-vlans ezininzi ngexesha elinye. Ngokwento yokudibanisa i-interface kunye nokulungiswa kwezakhelo zedatha ezithunyelwe kunye nezifunyenweyo, kukho iintlobo ezininzi ze-interface ye-vlans ukulungelelanisa ukudibanisa okuhlukeneyo kunye nenethiwekhi.
Abathengisi abohlukeneyo bachaza uhlobo lojongano lweVLAN ngokwahlukileyo. Izixhobo zeHuawei zisebenzisa iintlobo ezintathu eziqhelekileyo zojongano lweVLAN: Ukufikelela, iTrunk, kunye neHybrid.
Ukufikelela kujongano
Ujongano loFikelelo luqhele ukusetyenziswa ukudibanisa kwiitheminali zomsebenzisi (ezifana nenginginya zabasebenzisi kunye nabancedisi) abangazazi iithegi, okanye abafuni kwahlula amalungu eVLAN.
Kwinethiwekhi yokutshintsha iVLAN, iifreyimu zedatha ye-Ethernet ziza ngezi ndlela zimbini zilandelayo:
Isakhelo esingachazwanga: Isakhelo soqobo ngaphandle kwethegi ye-VLAN ye-4-byte.
Isakhelo esiphawulweyo: Isakhelo esongezwe kwithegi ye-VLAN ye-4-byte.
Kwiimeko ezininzi, ujongano loFikelelo lungathumela kwaye lufumane kuphela izakhelo eziNgachazwanga, kwaye inokongeza iTag eyodwa yeVLAN kuphela kwizakhelo eziNgachazwanga. Utshintsho luqhuba kuphela izakhelo eziphawulweyo. Ke ngoko, ujongano lokuFikelela lufuna ukongeza iithegi zeVLAN kwizakhelo ezifunyenweyo, kwaye iVLAN engagqibekanga kufuneka iqwalaselwe. Emva kokuba i-VLAN engagqibekanga iqwalaselwe, ujongano lokuFikelela longezwa kwiVLAN.
Xa ujongano lokuFikelela lufumana isakhelo ngeTag kunye nesakhelo siqulethe iVID kunye nePVID efanayo, ujongano lokuFikelela lunokufumana kwaye luqhube isakhelo.
Phambi kokuthumela isakhelo esineTag, ujongano lokuFikelela luqhawula iTag..
Ujongano lwetrunk
Ujongano lwetrunk lusetyenziselwa ukudibanisa iiswitshi, iirotha, ii-aps, kunye neetheminali zelizwi ezinokuthumela kwaye zifumane iifreyimu eziphawulweyo nezingafakwanga ngaxeshanye. Ivumela izakhelo ze-vlans ezininzi ukuba zidlule ngeethegi, kodwa kuphela izakhelo ezizeze-VLAN ezingagqibekanga ezivumelekileyo ukuba zithunyelwe ukusuka kolujongano ngaphandle kweethegi (oko kukuthi, iithegi zisusiwe).
I-VLAN engagqibekanga kujongano lweTrunk ikwachazwa njengeVLAN yemveli ngabanye abathengisi. Xa ujongano lweTrunk lufumana isakhelo esingachazwanga, yongeza iTag ehambelana neVLAN yoMthonyama kwisakhelo.
I-Hybrid interface
Izibuko zeHybrid zingasetyenziselwa ukudibanisa iitheminali zabasebenzisi (ezinje ngokuba ngabamkeli babasebenzisi kunye neeseva) kunye nezixhobo zenethiwekhi (ezifana nee-hubs) ezingakwaziyo ukuqaphela iithegi, iiswitshi, iirotha, kunye neetheminali zelizwi kunye neeap ezinokuthumela kwaye zifumane izakhelo eziphawulweyo nezingafakwanga kwi xeshanye. Ivumela izakhelo ezinamathegi ee-vlans ezininzi ukuba zidlule kwaye zivumela izakhelo ezithunyelwe ukusuka kolu jongano ukuba ziphathe iithegi ze-vlans ezithile (oko kukuthi, iifreyimu ezingenazo iithegi) kunye nezakhelo ngaphandle kweethegi ze-vlans ezithile (oko kukuthi, izakhelo ezingenazo iithegi) njengoko zifunwa.
Ujongano lweHybrid kunye nojongano lweTrunk lunokusetyenziswa kwiimeko ezininzi zesicelo, kodwa ujongano lweHybrid kufuneka lusetyenziswe kwezinye iimeko zesicelo. Ngokomzekelo, kwi-QinQ eguquguqukayo, iipakethi ezivela kwii-vlans ezininzi kwinethiwekhi yomnikezeli wenkonzo kufuneka zihlube iithegi ze-VLAN zangaphandle ngaphambi kokungena kwinethiwekhi yomsebenzisi. Kule meko, i-Trunk interface ayikwazi ukwenza lo msebenzi, kuba i-Trunk interface inokuvumela kuphela iipakethi ezivela kwi-VLAN engagqibekanga ye-interface ukuba idlule ngaphandle kweethegi ze-VLAN.
Oku kungasentlaHDVPhoeletron I-Technology Ltd. ukuzisa abathengi malunga "nokutshintsha kwi-interface efanelekileyo" inqaku lentshayelelo, kwaye inkampani yethu yimveliso ekhethekileyo yabenzi benethiwekhi yamehlo, iimveliso ezibandakanyekayo kungekuphela nje uchungechunge lwe-transceiver, uthotho lwe-ONU, uthotho lweemodyuli zokukhanya, uthotho lwe-OLT, njl. ., kukho ukucaciswa okwahlukeneyo kweemveliso zeemfuno ezahlukeneyo zendawo yenkxaso yenethiwekhi, Wamkelekile ukubuza.
