I-virtual Local Area Network (VLAN) ubuchwepheshe bezokuxhumana obuhlukanisa i-LAN ebonakalayo ibe izizinda zokusakaza eziningi ngokunengqondo.
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I-VLAN ngayinye iyisizinda sokusakaza. Ababungazi abangaphakathi kwe-VLAN bangaxhumana ngokuqondile, kodwa abakwazi ukuxhumana ngokuqondile. Ngale ndlela, amaphakethe okusakaza akhawulelwe ku-VLAN eyodwa.
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I-Early Ethernet ubuchwepheshe bokuxhumana kwenethiwekhi yedatha obusekelwe ku-CSMA/CD (Carrier Sense Multiple Access/Collision Detection) eyabelana ngemidiya yokuxhumana. Inani elikhulu labasingathi lingabangela izingxabano ezimbi kakhulu, izikhukhula zokusakaza, ukonakala kokusebenza, kanye nokungatholakali kwenethiwekhi. Nakuba amadivayisi we-Layer 2 angaxazulula izingxabano ezinkulu, awakwazi ukuhlukanisa amaphakethe okusakaza futhi athuthukise ikhwalithi yenethiwekhi.
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Kulokhu, ubuchwepheshe be-VLAN buvela. Kulobu buchwepheshe, i-LAN ingahlukaniswa ngama-vlans amaningi anengqondo. I-VLAN ngayinye iyisizinda sokusakaza. Ukuxhumana phakathi kwabasingathi ku-VLAN kuyefana nalokho okuku-LAN. Njengoba kuboniswe esithombeni esilandelayo..
Ngakho-ke, ama-vlans anezinzuzo ezilandelayo:
● Isizinda sokusakaza esikhawulelwe: Isizinda sokusakaza sikhawulelwe ku-VLAN eyodwa, elondoloza umkhawulokudonsa futhi ethuthukisa amandla okucubungula inethiwekhi.
● Ithuthukisa ukuphepha kwe-LAN. Amaphakethe kuma-vlans ahlukene ahlukanisiwe komunye nomunye. Okusho ukuthi, abasebenzisi ku-VLAN eyodwa abakwazi ukuxhumana ngokuqondile nabasebenzisi kwamanye ama-vlan.
● Ithuthukisa ukuqina kwenethiwekhi: amaphutha akhawulelwe ku-VLAN eyodwa kuphela. Amaphutha kule VLAN akuthinti ukusebenza okuvamile kwamanye ama-vlans.
● Ukwakhiwa okuguquguqukayo kwamaqembu okusebenza abonakalayo: ama-vlans angasetshenziswa ukwabela abasebenzisi abahlukene kumaqembu okusebenza ahlukene. Abasebenzisi abaseqenjini lokusebenza elifanayo abakhawulelwe ebangeni lomzimba elingaguquki, okwenza ukwakhiwa nokugcinwa kwenethiwekhi kube nezimo kakhulu.
Ubuchwepheshe be-Vlan busetshenziswa kabanzi kushintsha, I-ONU, OLTnokunye ukuxhumana kwedivayisi.
Okungenhla yi-Shenzhen HDV Phoelectron Technology Ltd. iletha amakhasimende mayelana ne-athikili yesingeniso se-VLAN, futhi inkampani yethu iwumkhiqizo okhethekile wabakhiqizi benethiwekhi yamehlo, imikhiqizo ehilelekile.I-ONUuchungechunge (OLT I-ONU/ACI-ONU/CATVI-ONU/GPONI-ONU/XPONI-ONU), uchungechunge lwemojula ye-Optical (i-optical fibre module/Ethernet optical fibre module/SFP optical module),OLTuchungechunge (OLTimpahla /OLT shintsha/ikati elikhanyayoOLT), njll., kukhona ukucaciswa okuhlukahlukene kwemikhiqizo yokuxhumana ngezidingo zezimo ezahlukahlukene zokusekelwa kwenethiwekhi, wamukelekile ukubonisana.