VLAN (Virtual Local Area Network) ana kiranta "Virtual LAN" a cikin Sinanci.
VLAN yana raba LAN ta jiki zuwa LAN mai ma'ana da yawa, kuma kowane VLAN yanki ne na watsa shirye-shirye. Masu watsa shiri a cikin VLAN na iya yin hulɗa tare da saƙonni ta hanyar sadarwar Ethernet na al'ada, yayin da idan runduna a cikin VLAN daban-daban suna buƙatar sadarwa, dole ne a samu ta hanyar na'urorin Layer na cibiyar sadarwa kamar na'ura mai ba da hanya tsakanin hanyoyin sadarwa. ko sauya mai Layer uku.
Mai zuwa yana bayyana ka'idar Vlan ta tashar jiragen ruwa:
Tashar Access tana iya zama na VLAN guda ɗaya kawai, don haka tsohuwar VLAN ɗinta ita ce VLAN inda take, babu buƙatar saiti;tashar tashar jiragen ruwa ta Hybrid da tashar jiragen ruwa na Trunk na iya kasancewa na VLAN da yawa, don haka saita tsoffin VLAN ID na tashar jiragen ruwa.
1. Shiga tashar jiragen ruwa: karbi saƙon da aka karɓa ba tare da tag ba kuma ƙara tsoho Tag zuwa saƙon.Lokacin da saƙon da aka karɓa tare da Tag, ① yana karɓar ID na VLAN daidai yake da ID ɗin VLAN na tsoho.Idan an jefar da saƙon lokacin da aka aika ID na VLAN, ana cire Tag ɗin.
2. Tukunna: Lokacin da aka karɓi saƙon ba tare da Tag ba, Idan an riga an ƙara tashar jiragen ruwa zuwa tsohuwar VLAN, Kunna Tag ɗin tsohuwar VLAN ɗin saƙon kuma tura shi, Lokacin da tashar jiragen ruwa ba ta shiga tsohuwar VLAN ba, jefar. sakon;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 wannan tashar ta yarda ba, Yi watsi da saƙon;Lokacin aika sako, Lokacin da VLAN ID yayi daidai da ID na VLAN na asali, cire Tag, Aika wannan sakon lokacin da ID ɗin VLAN ya bambanta da ID ɗin VLAN na asali, Tsayawa Tag na asali, Aika saƙon.
3. Hybrid port: Aiki lokacin karbar saƙon daidai yake da na tashar jirgin ruwa.Lokacin aika saƙon, VLAN ID ɗin da ke ɗauke da saƙon shine VLAN ID da aka ba da izinin tashar jiragen ruwa, kuma tashar jiragen ruwa na iya saita ko ɗaukar Tag lokacin aika saƙon VLAN (ciki har da VLAN tsoho).
Adadin da ke gaba shine HDV 8pon tashar jiragen ruwa epon olt:
Our HDV 8pon tashar jiragen ruwa epon olt don saita tsoho umurnin vlan a cikin tashar shi ne: tashar tsoho-vlan 100.
Umarnin don ƙara tashar jiragen ruwa zuwa vlan daidai shine: vlan hybrid 100 ba tare da izini ba. Kuna iya canza matasan don samun dama da gangar jikin, kuma za'a iya canza alamar da ba a saka ba zuwa tagged, dangane da buƙata.
