Rịba ama amaokwu a dị n'okpuru ma zaa ajụjụ ahụ mgbe e mesịrị n'otu asụsụ ahụ dị ka amaokwu ahụ:  Passage: Usoro a na-ejikarị eme ihe taa iji kwado VLAN bụ IEEE 802.1Q. IEEE 802.1 na-arụ ọrụ na-akọwa usoro a nke multiplexing VLANs na mgbalị iji nye nkwado VLAN multivendor. Tupu iwebata ụkpụrụ 802.1Q, ọtụtụ usoro iwu nwere ikike dị, dịka Cisco Inter-Switch Link (ISL) na 3Com's Virtual LAN Trunk (VLT). Cisco mekwara VLANs n'elu FDDI site na iburu ozi VLAN na isi IEEE 802.10, na-emegide nzube nke ọkọlọtọ IEEE 802.10.  Ajụjụ: Olee usoro ndị e ji mee ihe tupu ụkpụrụ 802.1Q?
Cisco Inter-Switch Link (ISL) na 3Com's Virtual LAN Trunk (VLT)