Kodi ma waya 8 amatenga chingangwe cha ethernet chitani

VLAN (Inforner Amtundu Wamkulu) ndi ukadaulo woyankhulirana womwe umagawidwa momveka bwino pamalamulo angapo amafalitsa madera. Vlan iliyonse ndi malo ofalitsa omwe makasitomala amatha kulumikizana mwachindunji, pomwe kulumikizana pakati pa Vulans osiyanasiyana kumangolekeredwa. Zotsatira zake, mauthenga ouziridwa amangokhala kwa vlan imodzi.

Zamkati

Chifukwa chake Vlallans akufunika
· ·Vran vs. subnet
· ·Vran tag ndi id ya vran
· ·Mitundu ya ma vral anterfaces ndi vlan tag yogwirira
· ·Zochitika za Vlans
· ·Mavuto okhala ndi Vlans pamalo osungiramo mitambo

Chifukwa chiyani Vlans ikufunika

Maukonde oyambilira a Ethernet anali matekitala a deta pogwiritsa ntchito CSMA / CD (kunyamula kovomerezeka) komwe kumagwiritsa ntchito kugawana. Chiwerengero cha ogwidwa chikachulukirachulukira, chinayambitsa kugunda kwakukulu, mkuntho wamphamvu, kuwonongeka kwakukulu kwa magwiridwe, komanso kukhala ndi intaneti. Ngakhale kusokoneza ma lans pogwiritsa ntchito magawo 2 zida kungathetse zovuta zogunda, zidalepheretsa kusiya mauthenga pofalitsa mauthenga ndikusintha mtundu wa intaneti. Izi zidapangitsa kuti a Vlan Technology, omwe amayambitsa ma vani angapo; Vlan iliyonse imayimira madera omwe ali ndi mayikidwe, kupangitsa kulankhulana mkati mwa vran ngati kuti ndi nyambo pomwe kuletsa kulumikizana kwa inclange ndikusintha mauthenga ndi kufalitsa mauthenga mkati mwa valan.

Chithunzi 1: Ntchito Ya Vulans

Chifukwa chake, VLAN ali ndi maubwino otsatirawa:

Kuimbanso madongosolo: Kuimbanso madongosolo kumangokhala mkati mwa vran, kuyika bandwidth ndikuthana ndi vuto la intaneti.
Chitetezo cha Lani: Mauthenga ochokera ku Vlans osiyanasiyana amatalikirana panthawi yotumiza, kutanthauza ogwiritsa ntchito mkati mwa vlan imodzi sikungalumikizane ndi ogwiritsa ntchito ku VERL.
· Increased Network Robustness: Faults are restricted to one VLAN, so issues within one VLAN do not affect the normal operation of other VLANs.
Ntchito yomanga yowoneka bwino yogwira ntchito: Vlans imatha kugawika ogwiritsa ntchito m'magulu osiyanasiyana, kuloleza mamembala omwewo kuti azigwira ntchito popanda kukhazikika m'malo ena, opanga ma network osavuta komanso osinthika.

Vran vs. subnet

Pofuna kuthana ndi intaneti gawo la ma IP ma adilesi angapo, kugwiritsa ntchito ma adilesi a IP adilesi ndi ma adilesi a IP awiri atha kuyankhidwa. Zofanana ndi Vlans, zigawenga zithanso kudzipatula pakati pa anthu omwe ali. Mabungwe a Vlans osiyanasiyana sangathe kulankhulana mwachindunji, monga momwe owonera m'mabusa osiyanasiyana sangathe. Komabe, palibe makalata mwachindunji pakati pa awiriwo.

Phola	Chotupacho
Kusiyana	Ankakonda kugawa osanjikiza 2 ma network.
	Pambuyo pokonzanso mawonekedwe a VATL, ogwiritsa ntchito mu vlans osiyanasiyana amatha kulankhula pokhapokha ngati akukonzekera.
	Mpaka 394 Vlans akhoza kufotokozedwa; Chiwerengero cha zida mkati mwa vlan sichili ndi malire.
Wachibale	Mkati mwa vlan yomweyo, ma suble kapena angapo amatha kufotokozedwa.

Vran tag ndi id ya vran

Kuti athe kusintha mauthenga kuchokera ku Vulans osiyanasiyana, gawo lozindikiritsa ku Vlan liyenera kuwonjezeredwa ku mauthenga. Aieee 802.1Q Protocol imafotokoza kuti 4 mwa vran tag (yotchedwa vlan tag) kuwonjezeredwa ku mafelemu a Ethernet kuti adziwe zambiri za VAM.

Munda wa Vid mu Data Data umazindikiritsa vran komwe amangopanga data ndi; Chimacholinga cha data chitha kungofalikira mkati mwake vran. Munda wa Vid ukuimira ID ya VAM, yomwe imatha kuyambira 0 mpaka 4095. Popeza 0 ndi 4095 imasungidwa ndi ma protocol a vran ndi mafelemu a ethernet popanda ma tag.

Chifukwa chake, kuti mulumikizane ndi zida izi, kusintha zigawo zikayenera kuzindikira miyambo ya ethernet ndikuwonjezera kapena ma van ma tag omwe amafalitsa. Ma tag a van tag amakambalira limodzi ndi ma vran okhazikika a vran (pandel allad id, pid).

Mitundu ya ma vral anterfaces ndi vlan tag yogwirira

M'masiku anoporks, ogwiritsa ntchito a vlan omwewo amatha kulumikizidwa ndi zotupa zosiyanasiyana, ndipo pakhoza kukhala ma vlans angapo ma switch. Ngati kulumikizana kwa ogwiritsa ntchito ndikofunikira, mawonekedwe pakati pa zisinthidwe ayenera kuzindikira ndikutumiza mafelemu a data kuchokera ku vlans angapo nthawi imodzi. Kutengera ndi zinthu zolumikizidwa ndi momwe mafelemu amakonzedwera, pali mitundu yosiyanasiyana ya kuphatikizira kwa Vlan kuti igwirizane ndi malumikizidwe osiyanasiyana ndi kugwiritsa ntchito macheza.

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Post Nthawi: Nov-27-2024