Ka duba nassi da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar nassi: Passage: Tsarin da aka fi amfani da shi a yau don tallafawa VLANs shine IEEE 802.1Q. Kungiyar aiki ta IEEE 802.1 ta bayyana wannan hanyar ta VLANs da yawa a ƙoƙarin samar da tallafin VLAN mai yawa. Kafin gabatarwar daidaitaccen 802.1Q, akwai ladabi da yawa na mallaka, kamar Cisco Inter-Switch Link (ISL) da 3Com's Virtual LAN Trunk (LTV). Cisco kuma sun aiwatar da VLANs a kan FDDI ta hanyar ɗaukar bayanan VLAN a cikin taken firam na IEEE 802.10, akasin manufar daidaitaccen IEEE 802.10. Tambaya: Waɗanne hanyoyi aka yi amfani da su kafin daidaitaccen 802.1Q?
Cisco Inter-Switch Link (ISL) da kuma 3Com ta Virtual LAN Trunk (VLT)