Hnub no peb yuav txuas ntxiv peb cov kev sib tham ntawm VLANs thiab sib tham txog VTP raws tu qauv, nrog rau cov ntsiab lus ntawm VTP Pruning thiab Native VLAN. Peb twb tau tham txog VTP nyob rau hauv ib qho ntawm cov yeeb yaj kiab dhau los, thiab thawj qhov uas yuav tsum tau los rau hauv koj lub siab thaum koj hnov ββββtxog VTP yog tias nws tsis yog cov txheej txheem trunking, txawm yog hu ua "VLAN trunking raws tu qauv."
Raws li koj paub, muaj ob qhov nrov trunking raws tu qauv - proprietary Cisco ISL raws tu qauv, uas tsis yog siv niaj hnub no, thiab 802.q raws tu qauv, uas yog siv nyob rau hauv lub network li ntawm ntau manufacturers los encapsulate trunking tsheb. Cov txheej txheem no kuj tseem siv hauv Cisco keyboards. Peb twb tau hais tias VTP yog VLAN synchronization raws tu qauv, uas yog, nws yog tsim los synchronize VLAN database hla txhua lub network keyboards.
Peb tau hais txog VTP hom sib txawv - server, neeg siv, pob tshab. Yog tias lub cuab yeej siv hom server, qhov no tso cai rau koj hloov pauv, ntxiv lossis tshem VLANs. Tus neeg siv hom tsis tso cai rau koj hloov pauv hloov chaw, koj tuaj yeem teeb tsa VLAN database tsuas yog los ntawm VTP server, thiab nws yuav rov ua dua rau txhua tus neeg siv VTP. Ib qho kev hloov hauv hom pob tshab tsis hloov pauv rau nws tus kheej VLAN database, tab sis tsuas yog dhau los ntawm nws tus kheej thiab hloov cov kev hloov pauv mus rau lwm lub cuab yeej hauv cov neeg siv khoom. Hom no zoo ib yam li kev tsis siv VTP ntawm ib lub cuab yeej tshwj xeeb, tig nws mus rau hauv cov ntaub ntawv hloov pauv ntawm VLAN.
Cia peb rov qab mus rau Packet Tracer program thiab lub network topology tau tham hauv zaj lus qhia dhau los. Peb tau teeb tsa VLAN10 network rau chav muag khoom thiab VLAN20 network rau chav ua lag luam, sib txuas nrog peb lub keyboards.
Nruab nrab ntawm cov keyboards SW0 thiab SW1 kev sib txuas lus tau ua dhau ntawm VLAN20 network, thiab ntawm SW0 thiab SW2 muaj kev sib txuas lus hla VLAN10 network vim qhov tseeb tias peb ntxiv VLAN10 rau VLAN database ntawm hloov SW1.
Txhawm rau xav txog kev ua haujlwm ntawm VTP raws tu qauv, cia peb siv ib qho ntawm cov keyboards ua VTP server, cia nws ua SW0. Yog tias koj nco qab, tag nrho cov keyboards ua haujlwm hauv VTP server hom. Cia peb mus rau qhov hais kom ua kab davhlau ya nyob twg ntawm qhov hloov pauv thiab nkag mus rau cov lus qhia vtp raws li txoj cai. Koj pom VTP raws tu qauv tam sim no yog 2 thiab qhov kev hloov kho tus lej yog 4. Yog tias koj nco qab, txhua zaus hloov pauv rau VTP database, tus lej hloov kho yuav nce los ntawm ib qho.
Tus lej siab tshaj plaws ntawm VLANs txhawb nqa yog 255. Tus lej no nyob ntawm hom kev hloov pauv ntawm Cisco tshwj xeeb, vim cov keyboards sib txawv tuaj yeem txhawb nqa cov lej sib txawv hauv zos virtual. Tus naj npawb ntawm VLANs uas twb muaj lawm yog 7, hauv ib feeb peb yuav saib seb cov tes hauj lwm no yog dab tsi. VTP tswj hom yog neeg rau zaub mov, lub npe sau tsis raug teeb tsa, VTP Pruning hom yog neeg xiam, peb yuav rov qab los rau qhov no tom qab. VTP V2 thiab VTP Traps Generation hom kuj raug kaw. Koj tsis tas yuav paub txog ob hom kawg kom dhau qhov kev xeem 200-125 CCNA, yog li tsis txhob txhawj txog lawv.
Cia wb mus saib VLAN database siv cov lus qhia vlan. Raws li peb twb pom nyob rau hauv cov yeeb yaj kiab dhau los, peb muaj 4 lub network tsis txhawb nqa: 1002, 1003, 1004 thiab 1005.
Nws kuj teev cov 2 tes hauj lwm peb tsim, VLAN10 thiab 20, thiab lub neej ntawd network, VLAN1. Tam sim no cia peb txav mus rau lwm qhov hloov pauv thiab nkag mus rau tib cov lus txib kom saib VTP xwm txheej. Koj pom tias tus lej hloov kho ntawm qhov hloov pauv no yog 3, nws yog nyob rau hauv VTP server hom thiab tag nrho lwm cov ntaub ntawv zoo ib yam li thawj hloov. Thaum kuv nkag mus rau cov yeeb yam VLAN hais kom ua, kuv tuaj yeem pom tias peb tau ua 2 qhov kev hloov pauv rau qhov chaw, ib qho tsawg dua li hloov SW0, uas yog vim li cas tus lej hloov kho ntawm SW1 yog 3. Peb tau ua 3 qhov kev hloov pauv rau qhov chaw pib ntawm thawj. hloov, yog li nws tus lej hloov kho tau nce mus rau 4.
Tam sim no cia saib cov xwm txheej ntawm SW2. Tus lej hloov kho ntawm no yog 1, uas yog txawv. Peb yuav tsum muaj kev hloov kho thib ob vim tias 1 qhov kev hloov pauv tau ua. Wb saib VLAN database.
Peb tau hloov ib qho, tsim VLAN10, thiab kuv tsis paub vim li cas cov ntaub ntawv ntawd tsis hloov kho. Tej zaum qhov no tshwm sim vim peb tsis muaj lub network tiag tiag, tab sis software network simulator, uas yuav muaj qhov yuam kev. Thaum koj muaj sijhawm los ua haujlwm nrog cov khoom siv tiag tiag thaum ua haujlwm ntawm Cisco, nws yuav pab koj ntau dua li Packet Tracer simulator. Lwm qhov tseem ceeb thaum tsis muaj cov khoom siv tiag tiag yuav yog GNC3, lossis cov duab Cisco network simulator. Qhov no yog ib qho emulator uas siv qhov kev ua haujlwm tiag tiag ntawm lub cuab yeej, xws li router. Muaj qhov sib txawv ntawm lub simulator thiab lub emulator - yav dhau los yog ib qho kev pab cuam uas zoo li lub router tiag tiag, tab sis tsis yog ib qho. Lub emulator software tsim tsuas yog lub cuab yeej nws tus kheej, tab sis siv cov software tiag tiag los khiav nws. Tab sis yog tias koj tsis muaj peev xwm khiav Cisco IOS software tiag tiag, Packet Tracer yog koj qhov kev xaiv zoo tshaj.
Yog li, peb yuav tsum teeb tsa SW0 ua tus neeg rau zaub mov VTP, rau qhov no kuv mus rau hauv lub ntiaj teb kev teeb tsa kev teeb tsa hom thiab nkag mus rau vtp version 2 hais kom ua. Raws li kuv tau hais, peb tuaj yeem nruab cov txheej txheem version uas peb xav tau - 1 lossis 2, hauv qhov no rooj plaub peb xav tau ib tug thib ob version. Tom ntej no, siv vtp hom hais kom ua, peb teeb VTP hom hloov - neeg rau zaub mov, neeg siv lossis pob tshab. Hauv qhov no, peb xav tau hom neeg rau zaub mov, thiab tom qab nkag mus rau vtp hom server hais kom ua, lub kaw lus qhia cov lus hais tias lub cuab yeej twb nyob rau hauv hom server. Tom ntej no, peb yuav tsum teeb tsa VTP sau npe, uas peb siv vtp sau nwking.org hais kom ua. Vim li cas qhov no tsim nyog? Yog tias muaj lwm yam khoom siv hauv lub network nrog tus lej kho dua siab dua, tag nrho lwm yam khoom siv nrog tus lej kho qis dua pib rov ua dua VLAN database los ntawm lub cuab yeej ntawd. Txawm li cas los xij, qhov no tsuas yog tshwm sim yog tias cov khoom siv muaj tib lub npe sau npe. Piv txwv li, yog tias koj ua haujlwm ntawm nwking.org, koj qhia lub npe no, yog tias ntawm Cisco, ces lub npe cisco.com, thiab lwm yam. Lub npe sau npe ntawm koj lub tuam txhab cov cuab yeej tso cai rau koj kom paub qhov txawv ntawm cov khoom siv los ntawm lwm lub tuam txhab lossis los ntawm lwm yam khoom siv sab nraud ntawm lub network. Thaum koj muab lub tuam txhab sau npe rau ib lub cuab yeej, koj ua nws ib feem ntawm lub tuam txhab lub network.
Lwm qhov yuav tsum tau ua yog teeb VTP password. Nws yog qhov xav tau kom tus neeg nyiag nkas, muaj lub cuab yeej nrog tus lej hloov kho siab, tsis tuaj yeem luam nws VTP teeb tsa rau koj qhov hloov pauv. Kuv nkag mus rau cisco password siv vtp password cisco hais kom ua. Tom qab no, rov ua dua ntawm VTP cov ntaub ntawv ntawm cov keyboards yuav ua tau tsuas yog tias cov passwords sib phim. Yog tias siv lo lus zais tsis raug, VLAN database yuav tsis hloov kho.
Cia peb sim ua qee qhov VLANs ntxiv. Ua li no, kuv siv config t hais kom ua, siv vlan 200 hais kom ua los tsim ib lub network naj npawb 200, muab nws lub npe TEST thiab txuag cov kev hloov pauv nrog cov lus txib tawm. Tom qab ntawd kuv tsim lwm vlan 500 thiab hu nws TEST1. Yog tias koj tam sim no nkag mus rau qhov qhia vlan hais kom ua, tom qab ntawd hauv lub rooj ntawm virtual networks ntawm qhov hloov pauv koj tuaj yeem pom ob lub network tshiab no, uas tsis yog ib qho chaw nres nkoj.
Wb mus rau SW1 thiab saib nws cov xwm txheej VTP. Peb pom tias tsis muaj dab tsi hloov ntawm no tsuas yog lub npe sau npe, tus naj npawb ntawm VLANs tseem sib npaug rau 7. Peb tsis pom cov tes hauj lwm peb tsim tshwm sim vim VTP password tsis phim. Cia peb teeb VTP lo lus zais ntawm qhov hloov pauv no los ntawm kev nkag mus rau cov lus txib conf t, vtp pass thiab vtp password Cisco. Lub kaw lus tau tshaj tawm tias lub cuab yeej VLAN database tam sim no siv Cisco password. Cia wb mus saib VTP cov xwm txheej los xyuas seb cov ntaub ntawv puas tau rov ua dua. Raws li koj tuaj yeem pom, tus naj npawb ntawm VLANs uas twb muaj lawm tau nce mus rau 9.
Yog tias koj saib VLAN database ntawm qhov hloov pauv no, koj tuaj yeem pom tias VLAN200 thiab VLAN500 tes hauj lwm peb tsim tau tshwm sim hauv nws.
Tib yam yuav tsum tau ua nrog qhov kawg hloov SW2. Cia peb nkag mus rau qhov qhia vlan hais kom ua - koj tuaj yeem pom tias tsis muaj kev hloov pauv tau tshwm sim hauv nws. Ib yam li ntawd, tsis muaj kev hloov pauv hauv VTP xwm txheej. Txhawm rau txhawm rau hloov kho cov ntaub ntawv no, koj kuj yuav tsum teeb tsa tus password, uas yog, nkag mus rau tib cov lus txib xws li SW1. Tom qab no, tus naj npawb ntawm VLANs hauv SW2 xwm txheej yuav nce mus rau 9.
Qhov ntawd yog qhov VTP rau. Qhov no yog qhov zoo tshaj plaws uas tau hloov kho cov ntaub ntawv hauv txhua tus neeg siv khoom siv network tom qab hloov pauv mus rau lub server ntaus ntawv. Koj tsis tas yuav manually hloov pauv rau VLAN database ntawm txhua qhov hloov pauv - kev rov ua dua yuav tshwm sim. Yog tias koj muaj 200 cov khoom siv hauv lub network, qhov kev hloov pauv uas koj ua yuav raug cawm ntawm tag nrho ob puas khoom siv tib lub sijhawm. Tsuas yog nyob rau hauv rooj plaub, peb yuav tsum xyuas kom meej tias SW2 kuj yog VTP tus thov kev pab, yog li cia peb mus rau hauv cov chaw nrog cov lus txib config t thiab nkag mus rau vtp hom neeg siv cov lus txib.
Yog li, hauv peb lub network tsuas yog thawj qhov hloov pauv yog nyob rau hauv VTP Server hom, lwm qhov ob ua haujlwm hauv VTP Client hom. Yog tias tam sim no kuv mus rau hauv SW2 nqis thiab nkag mus rau vlan 1000 hais kom ua, kuv yuav tau txais cov lus: "configuring VTP VLAN tsis raug tso cai thaum lub cuab yeej nyob rau hauv hom neeg siv khoom." Yog li, kuv tsis tuaj yeem hloov pauv rau VLAN database yog tias qhov hloov pauv hauv VTP tus neeg siv hom. Yog tias kuv xav hloov pauv, kuv yuav tsum mus rau lub server hloov.
Kuv mus rau SW0 qhov chaw nres nkoj thiab nkag mus rau cov lus txib vlan 999, npe IMRAN thiab tawm. Lub network tshiab no tau tshwm sim hauv VLAN database ntawm qhov hloov pauv no, thiab yog tias kuv tam sim no mus rau cov ntaub ntawv ntawm tus neeg siv khoom hloov SW2, kuv yuav pom tias tib cov ntaub ntawv tau tshwm sim ntawm no, uas yog, rov ua dua tau tshwm sim.
Raws li kuv tau hais, VTP yog ib qho zoo ntawm software, tab sis yog siv tsis raug, nws tuaj yeem cuam tshuam tag nrho lub network. Yog li ntawd, koj yuav tsum tau ceev faj heev thaum tuav lub tuam txhab network yog lub npe sau npe thiab VTP password tsis raug teeb tsa. Nyob rau hauv rooj plaub no, tag nrho cov hacker yuav tsum tau ua yog ntsaws lub cable ntawm nws hloov mus rau hauv lub network socket ntawm phab ntsa, txuas mus rau ib qho chaw ua hauj lwm hloov chaw siv DTP raws tu qauv thiab ces, siv lub cev tsim, hloov tshiab tag nrho cov ntaub ntawv siv VTP raws tu qauv. . Txoj kev no, tus neeg nyiag khoom tuaj yeem tshem tawm tag nrho cov VLAN tseem ceeb, ua kom zoo dua qhov tseeb tias tus lej hloov kho ntawm nws lub cuab yeej siab dua li tus lej hloov kho ntawm lwm cov keyboards. Hauv qhov no, lub tuam txhab hloov pauv yuav hloov tag nrho cov ntaub ntawv VLAN cov ntaub ntawv nrog cov ntaub ntawv rov qab los ntawm kev hloov siab phem, thiab koj lub network tag nrho yuav tawg.
Qhov no yog vim qhov tseeb tias cov khoos phis tawj txuas nrog siv lub network cable mus rau qhov chaw hloov chaw tshwj xeeb uas VLAN 10 lossis VLAN20 raug muab. Yog tias cov tes hauj lwm no raug tshem tawm los ntawm qhov hloov pauv LAN database, nws yuav cia li lov tes taw qhov chaw nres nkoj uas tsis muaj nyob hauv lub network. Feem ntau, lub tuam txhab lub network tuaj yeem tawg tau meej vim tias cov keyboards tsuas yog lov tes taw cov chaw nres nkoj cuam tshuam nrog VLANs uas raug tshem tawm thaum lub sijhawm hloov tshiab tom ntej.
Txhawm rau tiv thaiv cov teeb meem zoo li no tshwm sim, koj yuav tsum teeb tsa VTP lub npe thiab lo lus zais lossis siv Cisco Port Security feature, uas tso cai rau koj tswj hwm MAC chaw nyob ntawm cov chaw hloov chaw, qhia txog ntau yam kev txwv ntawm lawv siv. Piv txwv li, yog tias lwm tus neeg sim hloov qhov chaw nyob MAC, qhov chaw nres nkoj yuav poob tam sim ntawd. Peb yuav tau saib ze dua ntawm cov yam ntxwv ntawm Cisco hloov pauv sai sai no, tab sis tam sim no txhua yam koj yuav tsum paub yog qhov chaw ruaj ntseg tso cai rau koj kom paub tseeb tias VTP tiv thaiv los ntawm tus neeg tawm tsam.
Cia peb xaus qhov kev teeb tsa VTP yog dab tsi. Qhov no yog qhov kev xaiv ntawm cov txheej txheem version - 1 lossis 2, txoj haujlwm ntawm VTP hom - server, tus neeg siv lossis pob tshab. Raws li kuv twb tau hais lawm, hom tom kawg tsis hloov kho VLAN database ntawm lub cuab yeej nws tus kheej, tab sis tsuas yog xa tag nrho cov kev hloov pauv mus rau cov khoom nyob sib ze. Cov hauv qab no yog cov lus txib rau muab lub npe sau npe thiab tus password: vtp sau <domain name> thiab vtp password <password>.
Tam sim no cia peb tham txog VTP Pruning nqis. Yog tias koj saib ntawm lub network topology, koj tuaj yeem pom tias tag nrho peb lub keyboards muaj tib lub VLAN database, uas txhais tau hais tias VLAN10 thiab VLAN20 yog ib feem ntawm tag nrho 3 keyboards. Technically, hloov SW2 tsis xav tau VLAN20 vim nws tsis muaj cov chaw nres nkoj ntawm lub network no. Txawm li cas los xij, tsis hais txog qhov no, tag nrho cov tsheb thauj mus los ntawm Laptop0 lub khoos phis tawj ntawm VLAN20 network mus txog qhov hloov SW1 thiab los ntawm nws mus los ntawm lub cev mus rau SW2 chaw nres nkoj. Koj lub luag haujlwm tseem ceeb ua tus kws tshaj lij hauv lub network yog los xyuas kom meej tias cov ntaub ntawv tsis tsim nyog me me raws li qhov ua tau raug xa tawm hauv lub network. Koj yuav tsum xyuas kom meej tias cov ntaub ntawv tsim nyog raug xa mus, tab sis koj tuaj yeem txwv tsis pub kis cov ntaub ntawv uas tsis xav tau los ntawm lub cuab yeej?
Koj yuav tsum xyuas kom meej tias cov tsheb thauj mus los rau cov khoom siv ntawm VLAN20 tsis ntws mus rau SW2 cov chaw nres nkoj los ntawm lub cev thaum nws tsis tas yuav tsum tau. Ntawd yog, Laptop0 tsheb yuav tsum ncav cuag SW1 thiab tom qab ntawd mus rau cov khoos phis tawj ntawm VLAN20, tab sis yuav tsum tsis txhob mus dhau qhov chaw nres nkoj sab xis ntawm SW1. Qhov no tuaj yeem ua tiav nrog VTP Pruning.
Txhawm rau ua qhov no, peb yuav tsum mus rau qhov chaw ntawm VTP server SW0, vim tias raws li kuv tau hais lawm, VTP chaw tsuas tuaj yeem ua los ntawm server, mus rau qhov chaw teeb tsa thoob ntiaj teb thiab ntaus vtp pruning hais kom ua. Txij li thaum Packet Tracer tsuas yog ib qho kev simulation, tsis muaj cov lus txib hauv nws cov kab lus hais kom ua. Txawm li cas los xij, thaum kuv ntaus vtp pruning thiab nias Enter, lub kaw lus qhia kuv tias vtp pruning hom tsis muaj.
Siv cov lus qhia vtp raws li txoj cai, peb yuav pom tias VTP Pruning hom yog nyob rau hauv lub xeev tsis taus, yog li peb yuav tsum ua kom nws muaj los ntawm kev txav mus rau txoj haujlwm. Tom qab ua tiav qhov no, peb qhib VTP Pruning hom ntawm tag nrho peb lub keyboards ntawm peb lub network hauv lub network sau.
Cia kuv ceeb toom koj tias VTP Pruning yog dab tsi. Thaum peb qhib hom no, hloov server SW0 qhia hloov SW2 tias tsuas yog VLAN10 tau teeb tsa ntawm nws cov chaw nres nkoj. Tom qab qhov no, hloov SW2 qhia hloov SW1 tias nws tsis tas yuav muaj tsheb khiav tawm uas tsis yog cov tsheb thauj mus los rau VLAN10. Tam sim no, ua tsaug rau VTP Pruning, hloov SW1 muaj cov ntaub ntawv hais tias nws tsis tas yuav xa VLAN20 tsheb khiav raws SW1-SW2 lub cev.
Qhov no yooj yim heev rau koj ua tus tswj hwm network. Koj tsis tas yuav manually nkag mus rau cov lus txib vim qhov hloov pauv tau ntse txaus los xa raws nraim li qhov tshwj xeeb network xav tau. Yog tias tag kis koj tso lwm lub tuam txhab lag luam hauv lub tsev tom ntej thiab txuas nws lub VLAN20 network hloov SW2, qhov kev hloov ntawd yuav qhia tam sim hloov SW1 tias tam sim no nws muaj VLAN10 thiab VLAN20 thiab hais kom nws xa mus rau ob lub network. Cov ntaub ntawv no tau hloov kho tas li thoob plaws txhua yam khoom siv, ua rau kev sib txuas lus zoo dua.
Muaj lwm txoj hauv kev los qhia txog kev sib kis ntawm cov tsheb khiav - qhov no yog siv cov lus txib uas tso cai rau cov ntaub ntawv xa mus rau VLAN tshwj xeeb. Kuv mus rau qhov chaw ntawm kev hloov SW1, qhov twg kuv txaus siab rau qhov chaw nres nkoj Fa0/4, thiab nkag mus rau cov lus txib int fa0/4 thiab hloov chaw nres nkoj tso cai vlan. Txij li thaum kuv twb paub lawm tias SW2 tsuas muaj VLAN10 xwb, kuv tuaj yeem qhia SW1 kom tso cai tsuas yog tsheb khiav mus rau lub network ntawm nws lub cev qhov chaw nres nkoj los ntawm kev siv cov lus txib vlan tso cai. Yog li kuv tau teeb tsa lub cev chaw nres nkoj Fa0/4 kom nqa tsheb tsuas yog rau VLAN10. Qhov no txhais tau hais tias qhov chaw nres nkoj no yuav tsis tso cai rau kev khiav tsheb ntxiv los ntawm VLAN1, VLAN20, lossis lwm lub network uas tsis yog qhov teev tseg.
Tej zaum koj yuav xav tias qhov twg yog qhov zoo dua los siv: VTP Pruning lossis cov lus txib vlan tso cai. Cov lus teb yog cov ntsiab lus vim tias qee qhov nws ua rau kev nkag siab siv thawj txoj hauv kev, thiab lwm tus nws ua rau kev nkag siab siv qhov thib ob. Raws li tus thawj tswj hwm network, nws yog nyob ntawm koj xaiv qhov kev daws teeb meem zoo tshaj plaws. Qee zaum, qhov kev txiav txim siab rau qhov chaw nres nkoj kom tso cai rau kev khiav tsheb los ntawm ib qho VLAN tshwj xeeb tuaj yeem ua tau zoo, tab sis lwm tus tuaj yeem ua phem. Nyob rau hauv cov ntaub ntawv ntawm peb lub network, siv qhov tso cai vlan hais kom ua yuav raug cai yog tias peb yuav tsis hloov lub network topology. Tab sis yog tias ib tus neeg tom qab xav ntxiv ib pab pawg siv VLAN2 rau SW 20, nws yuav pom zoo kom siv VTP Pruning hom.
Yog li, teeb tsa VTP Pruning suav nrog kev siv cov lus txib hauv qab no. Lub vtp pruning hais kom ua muab tsis siv neeg siv hom no. Yog tias koj xav teeb tsa VTP Pruning ntawm lub cev qhov chaw nres nkoj kom tso cai rau kev khiav tsheb ntawm ib qho VLAN kom dhau manually, tom qab ntawd siv cov lus txib los xaiv lub cev qhov chaw nres nkoj tus lej interface <#>, pab kom lub cev hom hloov pauv lub cev thiab tso cai rau kev sib kis ntawm cov tsheb. rau ib lub network tshwj xeeb uas siv lub cev hloov pauv tau tso cai vlan hais kom ua .
Hauv cov lus txib kawg koj tuaj yeem siv 5 qhov tsis muaj. Txhua qhov txhais tau hais tias kev xa mus rau txhua VLANs raug tso cai, tsis muaj - kev xa mus rau txhua VLANs raug txwv. Yog tias koj siv qhov ntxiv parameter, koj tuaj yeem ntxiv kev hla mus rau lwm lub network. Piv txwv li, peb tso cai rau VLAN10 kev khiav tsheb, thiab nrog rau cov lus txib ntxiv peb tuaj yeem tso cai rau VLAN20 tsheb hla dhau. Cov lus txib tshem tawm tso cai rau koj tshem tawm ib qho ntawm cov tes hauj lwm, piv txwv li, yog tias koj siv qhov tshem tawm 20 parameter, tsuas yog VLAN10 tsheb yuav nyob twj ywm.
Tam sim no cia peb saib VLAN haiv neeg. Peb twb tau hais tias haiv neeg VLAN yog lub network virtual rau kev hla cov tsheb tsis sib xws los ntawm qhov chaw nres nkoj tshwj xeeb.
Kuv mus rau hauv qhov chaw nres nkoj tshwj xeeb raws li tau hais los ntawm SW (config-if) # kab lus hais kom ua thiab siv cov lus txib switchport trunk haiv neeg vlan <network number>, piv txwv li VLAN10. Tam sim no tag nrho cov tsheb khiav ntawm VLAN10 yuav dhau los ntawm lub cev tsis muaj npe.
Cia peb rov qab mus rau lub logical network topology hauv Packet Tracer qhov rai. Yog hais tias kuv siv lub switchport pob tw haiv neeg vlan 20 hais kom ua ntawm hloov chaw nres nkoj Fa0/4, ces tag nrho cov tsheb khiav ntawm VLAN20 yuav ntws los ntawm lub Fa0/4 - SW2 pob tw untagged. Thaum hloov SW2 tau txais cov tsheb khiav no, nws yuav xav tias: "qhov no yog kev tsheb tsis muaj npe, uas txhais tau hais tias kuv yuav tsum xa nws mus rau VLAN haiv neeg." Rau qhov kev hloov no, haiv neeg VLAN yog VLAN1 network. Networks 1 thiab 20 tsis txuas nrog txhua txoj hauv kev, tab sis txij li hom VLAN haiv neeg siv, peb muaj sijhawm los khiav VLAN20 mus rau qhov sib txawv kiag li. Txawm li cas los xij, qhov kev sib tw no yuav tsis muaj kev cuam tshuam, thiab cov tes hauj lwm lawv tus kheej yuav tsum tseem sib phim.
Cia peb saib qhov no nrog ib qho piv txwv. Kuv mam li mus rau hauv SW1 qhov chaw thiab siv lub switchport pob tw haiv neeg vlan 10 hais kom ua. Tam sim no tej VLAN10 tsheb yuav tawm ntawm lub cev chaw nres nkoj untagged. Thaum nws mus txog lub cev chaw nres nkoj SW2, qhov hloov pauv yuav nkag siab tias nws yuav tsum xa mus rau VLAN1. Raws li qhov kev txiav txim siab no, kev khiav tsheb yuav tsis tuaj yeem ncav cuag cov khoos phis tawj PC2, 3 thiab 4, txij li lawv tau txuas nrog qhov hloov pauv nkag mus rau cov chaw nres nkoj npaj rau VLAN10.
Technically, qhov no yuav ua rau lub kaw lus ceeb toom tias haiv neeg VLAN ntawm chaw nres nkoj Fa0/4, uas yog ib feem ntawm VLAN10, tsis phim qhov chaw nres nkoj Fa0/1, uas yog ib feem ntawm VLAN1. Qhov no txhais tau hais tias cov chaw nres nkoj tau teev tseg yuav tsis tuaj yeem ua haujlwm hauv lub cev hom vim yog VLAN ib txwm tsis sib haum.
Ua tsaug uas koj nyob nrog peb. Koj puas nyiam peb cov ntawv? Xav pom cov ntsiab lus nthuav ntxiv? Txhawb nqa peb los ntawm kev tso ib qho kev txiav txim lossis qhia rau cov phooj ywg, 30% luv nqi rau cov neeg siv Habr ntawm qhov tshwj xeeb analogue ntawm nkag-theem servers, uas tau tsim los ntawm peb rau koj: (muaj nrog RAID1 thiab RAID10, mus txog 24 cores thiab mus txog 40GB DDR4).
Dell R730xd 2 zaug pheej yig dua? Tsuas yog nyob ntawm no hauv Netherlands! Dell R420 - 2x E5-2430 2.2Ghz 6C 128GB DDR3 2x960GB SSD 1Gbps 100TB - los ntawm $ 99! Nyeem txog
Tau qhov twg los: www.hab.com