VLAN (Virtual Local Area Network) ana kiranta "Virtual LAN" a cikin Sinanci.
VLAN yana raba LAN ta zahiri zuwa LANs masu ma'ana da yawa, kuma kowane VLAN yanki ne na watsa shirye-shirye. Masu watsa shirye-shirye a cikin VLAN na iya sadarwa tare da saƙon ta hanyar yanayin sadarwar Ethernet na al'ada, amma tsakanin runduna a cikin VLAN daban-daban, dole ne a sami hanyar sadarwa ta hanyar na'urorin Layer na cibiyar sadarwa kamar su.na'ura mai ba da hanya tsakanin hanyoyin sadarwako Layer ukucanza.
Mai zuwa yana bayyana ka'idar Vlan ta tashar jiragen ruwa:
Samun shiga, Tashar jiragen ruwa na iya zama na 1 VLAN ne kawai, don haka tsohuwar VLAN ita ce VLAN inda take, babu saiti; tashar tashar Hybrid da tashar jirgin ruwa na iya zama na VLAN da yawa, don haka kuna buƙatar saita tsoffin VLAN ID na tashar jiragen ruwa.
1. Shiga tashar jiragen ruwa: Lokacin da aka karɓi saƙon ba tare da tag ba, karɓi saƙon kuma ƙara tsohuwar VLAN Tag zuwa saƙon; Lokacin da saƙon da aka karɓa tare da Tag, ① yana karɓar saƙon lokacin da VLAN ID daidai yake da ID ɗin VLAN na asali, jefar da saƙon lokacin da VLAN ID shine tsoffin VLAN ID, aika Tag ba tare da saitawa ba.
2. Trunk port: lokacin da aka karɓa ba tare da Tag ba, Lokacin da tashar ta riga ta shiga tsohuwar VLAN, Kunshin da tura Tag don tsohowar saƙo da VLAN, Lokacin da tashar jiragen ruwa ba ta haɗa da tsoho VLAN ba, Yi watsi da saƙon; Lokacin da saƙon da aka karɓa yana ɗauke da Tag, Lokacin da VLAN ID shine VLAN ID ɗin da wannan tashar tashar ta ba da izini, Karɓar saƙon, Lokacin da VLAN ID ba ID ɗin VLAN da aka bari ta wannan tashar ba, Yi watsi da saƙon; Lokacin da aka aiko da sakon, Lokacin da VLAN ID yayi daidai da ID na VLAN na asali, cire Tag, Aika wannan sakon lokacin da VLAN ID ya bambanta da ID na VLAN na asali, Tsayawa Tag na asali, Aika saƙon.
3. Haɗaɗɗen tashar jiragen ruwa: Aikin karɓar saƙon daidai yake da aikin tashar jirgin ruwa. Lokacin aika saƙo, lokacin da VLAN ID ɗin da ke cikin saƙon shine VLAN ID ɗin da tashar ta ba da izini, ana iya aika saƙon, kuma ana iya saita tashar don ɗaukar Tag lokacin aika saƙon VLAN (ciki har da VLAN tsoho).
Hoto mai zuwa shine HDV 8on bakin EPONOLT
Mu HDV 8pon tashar jiragen ruwa EPONOLTdon saita tsoffin umarnin vlan a cikin tashar shine: tashar tashar jiragen ruwa-vlan 100.
Umarnin don ƙara tashar jiragen ruwa zuwa vlan daidai shine: vlan hybrid 100 mara alamar. Kuna iya maye gurbin matasan don samun dama da gwadawa, kuma ana iya yiwa alama mara alama, dangane da buƙatun.
Shenzhen HDV Optoelectronic Technology Co., Ltd. yana kawo muku bayanin ilimin VLAN, mai alaƙa da muOLTsamfurin jerin maida hankali ne akan firamOLT/ katsi mai haskeOLT/ EPONOLT/ karamaOLTda sauransu, na samaOLTAna iya amfani da jerin a cikin masana'antun cibiyar sadarwa iri-iri, maraba don fahimtar ƙarin ilimin samfur.