Ib tug phooj ywg hais tias yuav faib vlans li cas, tab sis qhov tseeb, kev faib vlans yog qhov tseem ceeb hauv kev siv tshuab network. Ntau lub network xav tau vlan partitioning. Hnub no, cia peb kawm txog qhov no ua ke.
Lub ntsiab lus ntawm VLAN:
VLAN yog lub npe luv ntawm Virtual Local Area Network hauv lus Askiv, tseem hu ua virtual local area network. Nws yog ib qho kev siv tshuab uas paub txog cov neeg ua haujlwm virtual los ntawm kev faib cov cuab yeej hauv cheeb tsam hauv cheeb tsam hauv cheeb tsam hauv lub network tsis yog lub cev faib lawv. Txhawm rau faib VLANs, koj yuav tsum yuav cov khoom siv network uas txhawb nqa VLAN ua haujlwm.
Lub hom phiaj ntawm kev faib VLANs:
VLAN tau npaj siab los daws cov teeb meem tshaj tawm thiab kev ruaj ntseg ntawm Ethernet, thiab tshaj tawm thiab unicast tsheb khiav hauv ib VLAN yuav tsis raug xa mus rau lwm VLANs. Txawm hais tias ob lub khoos phis tawj hauv tib lub network ntu tsis nyob hauv tib VLAN, lawv cov xov xwm tshaj tawm yuav tsis raug xa mus rau ib leeg.
Faib VLANs pab tswj kev khiav tsheb, txo cov cuab yeej peev, ua kom yooj yim rau kev tswj xyuas network, thiab txhim kho kev ruaj ntseg network. Vim VLANs cais tawm cov cua daj cua dub thiab kev sib txuas lus ntawm VLANs sib txawv, kev sib txuas lus ntawm VLAN sib txawv yuav tsum vam khom rau routers lossis peb txheej hloov.
VLAN partitioning method:
Muaj plaub txoj hauv kev rau kev faib VLANs, txhua tus muaj nws tus kheej qhov zoo thiab qhov tsis zoo. Thaum faib VLANs rau hauv tes hauj lwm, nws yog ib qho tsim nyog yuav tau xaiv txoj kev muab faib raws li qhov tseeb ntawm lub network.
1. VLAN raws li kev faib chaw nres nkoj: Ntau lub tuam txhab tsim khoom siv hloov chaw nres nkoj los faib cov tswv cuab VLAN. Raws li lub npe qhia, chaw nres nkoj raws li VLAN muab faib yog hais txog kev txhais qee qhov chaw nres nkoj ntawm kev hloov pauv raws li VLAN.
VLAN muab faib raws li cov chaw nres nkoj yog txoj kev siv feem ntau rau VLAN muab faib. Qhov zoo ntawm kev faib VLANs raws li cov chaw nres nkoj yog qhov yooj yim thiab meej, thiab kev tswj hwm kuj yooj yim heev. Qhov tsis zoo yog tias kev saib xyuas yog qhov nyuaj heev.
2. VLAN faib raws li MAC chaw nyob: Txhua daim npav network muaj qhov chaw nyob tshwj xeeb thoob ntiaj teb, uas yog qhov chaw nyob MAC. Raws li MAC chaw nyob ntawm daim npav network, ntau lub khoos phis tawj tuaj yeem muab faib ua VLAN tib yam.
Qhov zoo tshaj plaws ntawm txoj kev no yog tias thaum tus neeg siv lub cev qhov chaw txav mus, uas yog, thaum hloov ntawm ib qho mus rau lwm qhov hloov, VLAN tsis tas yuav tsum tau teeb tsa; Qhov tsis zoo yog tias thaum pib VLAN, txhua tus neeg siv yuav tsum teeb tsa nws, thiab lub nra ntawm cov neeg ua haujlwm kuj hnyav.
3. Faib VLANs raws li txheej txheej network: Txoj kev faib VLANs no yog ua raws li qhov chaw nyob network txheej lossis raws tu qauv ntawm txhua tus tswv tsev, tsis yog routing. Nco tseg: Txoj kev faib VLAN no yog tsim rau thaj chaw dav dav thiab tsis tas yuav muaj kev sib txuas hauv cheeb tsam.
4. Kev faib tawm VLAN raws li IP multicast: IP multicast yog qhov tseeb txhais ntawm VLAN, uas txhais tau hais tias ib pawg multicast yog VLAN. Txoj kev faib tawm no nthuav dav VLANs mus rau thaj chaw dav dav thiab tsis haum rau cov cheeb tsam hauv cheeb tsam, vim tias qhov ntsuas ntawm kev lag luam tes hauj lwm tseem tsis tau mus txog qhov loj.
Nws yog qhov pom tseeb tias txhua VLAN thev naus laus zis tsis haum rau kev siv network. Tom qab tau txais kev nkag siab zoo ntawm VLANs, peb yuav tsum muaj peev xwm txiav txim siab txog seb qhov kev faib VLAN puas tsim nyog raws li peb lub network ib puag ncig.
Xaiv qhov tsim nyog VLAN partitioning hom
Ntau tus neeg ua haujlwm tsuas paub tias VLAN muab faib tuaj yeem txhim kho kev sib kis tau zoo hauv lub network, tab sis tsis paub tias qhov tsis tsim nyog VLAN partitioning hom yuav txo qis kev sib kis network. Vim tias qhov chaw sib txawv ntawm ntau lub network, qhov tsim nyog tshaj VLAN faib txoj kev rau lawv siv kuj txawv. Hauv qab no, peb yuav piav qhia txog qhov twg VLAN partitioning hom yog tsim nyog rau kev lag luam tes hauj lwm siv piv txwv.
Piv txwv li, nyob rau hauv ib lub tuam txhab network, muaj 43 tus neeg siv computers, ntawm 35 yog desktop computers thiab 8 yog laptops. Lub network tsheb tsis loj heev. Vim muaj qee cov ntaub ntawv rhiab hauv lub tuam txhab nyiaj txiag uas cov neeg ua haujlwm zoo ib yam tsis xav pom, txhawm rau txhim kho kev ruaj ntseg network, kev tswj hwm lub network tau txiav txim siab faib lub network rau hauv VLANs kom cais kev sib txuas lus ntawm cov neeg ua haujlwm zoo tib yam thiab nyiaj txiag cov neeg ua haujlwm PCs.
Cov cai thov: Los ntawm cov lus piav qhia saum toj no, nws tuaj yeem pom tias lub tuam txhab faib VLANs los txhim kho kev ruaj ntseg, thaum txhim kho kev sib txuas lus network tsis yog lub hom phiaj tseem ceeb. Vim muaj tsawg tus neeg siv khoom hauv kev lag luam, laptops muaj zog txav. Hauv kev ua haujlwm niaj hnub, cov thawj coj feem ntau yuav tsum tau txav lub laptops mus rau chav sib tham kom tau raws li qhov xav tau ntawm kev ua haujlwm txawb. Hauv qhov no, VLAN partitioning hom raws li cov chaw nres nkoj tsis haum rau kev lag luam, thiab qhov tsim nyog VLAN faib txoj kev yog raws li MAC chaw nyob.
Yog li ntawd rau cov lag luam, qhov zoo tshaj plaws VLAN partitioning hom yog raws li qhov chaw nres nkoj muab faib thiab MAC chaw nyob partitioning. Rau kev lag luam tes hauj lwm nrog cov neeg siv tsawg tsawg thiab xav tau ntau zaus rau kev ua haujlwm hauv xov tooj, faib VLANs raws li MAC chaw nyob yog qhov zoo tshaj plaws faib hom. Rau kev lag luam tes hauj lwm nrog coob tus neeg siv khoom thiab tsis xav tau chaw ua haujlwm txawb, VLANs tuaj yeem muab faib raws li cov chaw nres nkoj. Hauv cov ntsiab lus, xaiv qhov tsim nyog VLAN faib hom raws li kev xav tau ntawm lub network.
Xaus:
Kev faib VLANs zoo li yog ib lub ntsiab lus, tab sis hauv kev siv tswv yim, ob peb tus neeg muaj peev xwm ua tau zoo siv VLAN muab faib ua cov cuab yeej tswj. Qhov tseem ceeb tshaj, qee lub tes hauj lwm tsis tas yuav muab VLAN faib, tab sis vim li ntawd, cov neeg ua haujlwm tau faib VLANs rau lawv, ua rau txo qis kev sib txuas lus hauv network. Me ntsis paub tias tsim nyog VLAN partitioning tuaj yeem txhim kho kev sib kis tau zoo hauv network, cia ib leeg xav txog VLAN muab faib ua ib qho kev daws teeb meem kom qeeb network ceev.
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Post lub sij hawm: May-29-2023