Ogwiritsa a VLAN yomweyo pa netiweki pompopompo akhoza kulumikizidwa ku masiwichi osiyanasiyana, ndipo pakhoza kukhala VLAN yopitilira imodzi pa switch. Kuti mulankhule ndi ogwiritsa ntchito, zolumikizira pakati pa masinthidwe ziyenera kuzindikira ndi kutumiza mafelemu a data a ma vlans angapo nthawi imodzi. Malinga ndi chinthu cholumikizira mawonekedwe komanso kukonza kwa mafelemu otumizidwa ndi kulandilidwa, pali mitundu ingapo ya mawonekedwe a vlans kuti agwirizane ndi maulumikizidwe osiyanasiyana ndi maukonde.
Otsatsa osiyanasiyana amatanthauzira mtundu wa mawonekedwe a VLAN mosiyana. Zida za Huawei zimagwiritsa ntchito mitundu itatu yodziwika bwino ya VLAN: Access, Trunk, ndi Hybrid.
Kufikira mawonekedwe
Mawonekedwe a Access nthawi zambiri amagwiritsidwa ntchito kuti alumikizane ndi malo ogwiritsira ntchito (monga ma seva ndi ma seva) omwe samazindikira ma tag, kapena safunikira kusiyanitsa mamembala a VLAN.
Mu VLAN switching network, mafelemu a data a Ethernet amabwera m'njira ziwiri izi:
Chimango chosadziwika: Chimango choyambirira chopanda 4-byte VLAN tag.
Chithunzi chojambulidwa: Chimango chowonjezeredwa ku tag ya 4-byte VLAN.
Nthawi zambiri, mawonekedwe a Access amatha kutumiza ndi kulandira mafelemu Osadulidwa okha, ndipo amatha kuwonjezera VLAN Tag yapadera pamafelemu Osadulidwa okha. Kusintha kumayendera mafelemu a Tagged okha. Chifukwa chake, mawonekedwe a Access akuyenera kuwonjezera ma tag a VLAN pamafelemu omwe alandilidwa, ndipo VLAN yokhazikika iyenera kukhazikitsidwa. Pambuyo pokonzekera VLAN yosasinthika, mawonekedwe a Access akuwonjezeredwa ku VLAN.
Pamene mawonekedwe a Access amalandira chimango ndi Tag ndipo chimango chili ndi VID ndi PVID yomweyo, mawonekedwe a Access angalandirenso ndikukonza chimango.
Musanatumize chimango chokhala ndi Tag, mawonekedwe a Access amachotsa Tag.
Thunthu mawonekedwe
Ma trunk interfaces amagwiritsidwa ntchito kulumikiza ma switch, ma routers, ma aps, ndi ma terminals amawu omwe amatha kutumiza ndi kulandira mafelemu a Tagged ndi Untagged nthawi imodzi. Zimalola mafelemu a ma vlans angapo kuti adutse ndi ma tag, koma mafelemu okhawo omwe ali a VLAN osasinthika amaloledwa kutumizidwa kuchokera ku mawonekedwe awa popanda ma tag (ndiko kuti, ma tag amachotsedwa).
VLAN yosasinthika pa mawonekedwe a Trunk imatanthauzidwanso ngati VLAN yakwawo ndi ogulitsa ena. Pamene mawonekedwe a Trunk amalandira chimango Chosadulidwa, amawonjezera Tag yogwirizana ndi Native VLAN ku chimango.
Mawonekedwe a Hybrid
Madoko a Hybrid atha kugwiritsidwa ntchito kulumikiza ma terminals (monga makamu ogwiritsira ntchito ndi ma seva) ndi zida za netiweki (monga ma hubs) zomwe sizingazindikire ma tag, masiwichi, ma router, ndi ma terminals amawu ndi mapulogalamu omwe amatha kutumiza ndikulandila mafelemu Otchulidwa ndi Osatchulidwa pa nthawi yomweyo. Imalola mafelemu okhala ndi ma tag a ma vlans angapo kudutsa ndikulola mafelemu otumizidwa kuchokera ku mawonekedwe awa kuti anyamule ma tag a ma vlans ena (ndiko kuti, mafelemu opanda ma tag) ndi mafelemu opanda ma tag a ma vlans ena (ndiko kuti, mafelemu opanda ma tag) momwe amafunikira.
Ma hybrid interfaces ndi Trunk interfaces atha kugwiritsidwa ntchito pazinthu zambiri, koma mawonekedwe a Hybrid akuyenera kugwiritsidwa ntchito pazochitika zina. Mwachitsanzo, mu QinQ yosinthika, mapaketi ochokera ku ma vlans angapo pa netiweki ya othandizira amayenera kuvula ma tag akunja a VLAN asanalowe mu netiweki ya wogwiritsa ntchito. Pankhaniyi, mawonekedwe a Trunk sangathe kuchita ntchitoyi, chifukwa mawonekedwe a Trunk amatha kulola mapaketi kuchokera ku VLAN yosasinthika ya mawonekedwe kuti adutse popanda ma tag a VLAN.
Pamwambapa ndiZithunzi za HDVPhoeletron Technology Ltd. kubweretsa makasitomala za "kusintha pa mawonekedwe oyenera" nkhani yoyambira, ndipo kampani yathu ndi kupanga apadera opanga kuwala maukonde, mankhwala nawo osati transceiver mndandanda, zambiri ONU zino, kuwala gawo mndandanda, OLT zino, etc. ., pali mitundu yosiyanasiyana yazogulitsa pazosowa zosiyanasiyana zapaintaneti, Takulandilani kuti mufunse.
