TAPs (Test Access Points), los kuj hu uaReplication Kais, Aggregation Kais, Active Kais, Copper Kais, Ethernet Coj, Optical Kais, Lub cev kov, thiab lwm yam. Cov kais dej yog ib txoj hauv kev nrov kom tau txais cov ntaub ntawv network. Lawv muab kev pom dav dav rau hauv cov ntaub ntawv network ntws thiab saib xyuas cov kev sib tham bidirectional ntawm txoj kab nrawm, tsis muaj pob ntawv poob lossis latency. Qhov tshwm sim ntawm TAPs tau hloov pauv lub teb ntawm kev saib xyuas thiab kev soj ntsuam hauv network, hloov pauv txoj hauv kev nkag mus rau kev saib xyuas thiab tshuaj xyuas cov tshuab thiab muab cov kev daws teeb meem tiav thiab hloov pauv rau tag nrho cov kev soj ntsuam.
Kev tsim kho thev naus laus zis tam sim no tau tsim ntau hom kais dej: cov kais dej uas sib sau ua ke ntau qhov sib txuas, rov tsim cov kais dej uas faib cov kab txuas mus rau ntau qhov chaw, hla cov kais dej, thiab matrix kais keyboards.
Tam sim no, cov Tap nrov tshaj plaws hauv kev lag luam suav nrog NetTAP thiab Mylinking, cov uas Mylinking tau lees paub tias yog ib qho zoo heev Tap thiab NPB hom nyob rau hauv Suav kev lag luam, nrog rau kev lag luam siab, kev ruaj ntseg thiab kev ua tau zoo.
Qhov zoo ntawm TAP
1. Khaws 100% ntawm cov ntaub ntawv pob ntawv yam tsis muaj pob ntawv poob.
2. Cov ntaub ntawv tsis tu ncua tuaj yeem saib xyuas, pab daws teeb meem.
3. Cov ntawv teev sijhawm raug, tsis muaj ncua sij hawm thiab rov ua haujlwm.
4. Kev teeb tsa ib zaug ua rau nws yooj yim rau kev sib txuas thiab txav lub ntsuas ntsuas.
Qhov tsis zoo ntawm TAP
1. Koj yuav tsum tau siv nyiaj ntxiv los yuav lub splitter TAP, uas yog kim thiab siv qhov chaw khib.
2. Tsuas yog ib qhov txuas tuaj yeem pom ib zaug.
Cov ntawv thov zoo ntawm TAP
1. Cov kev sib txuas ua lag luam: Cov kev sib txuas no yuav tsum muaj lub sijhawm daws teeb meem luv luv. Los ntawm kev txhim kho TAPs nyob rau hauv cov kev sib txuas, network engineers tuaj yeem nrhiav tau sai thiab daws teeb meem tam sim ntawd.
2. Cov tub ntxhais los yog cov pob txha txuas. Cov no muaj kev siv bandwidth siab thiab tsis tuaj yeem cuam tshuam thaum txuas lossis txav lub ntsuas ntsuas. TAP ua kom 100% cov ntaub ntawv ntes yam tsis muaj pob ntawv poob, muab kev lees paub ua haujlwm rau kev txheeb xyuas qhov tseeb ntawm cov kev txuas no.
3. VoIP thiab QoS: VoIP zoo ntawm kev pabcuam kev kuaj yuav tsum muaj qhov tseeb jitter thiab pob ntawv poob kev ntsuas. TAPs lav tag nrho cov kev ntsuam xyuas no, tab sis mirrored ports tuaj yeem hloov cov txiaj ntsig jitters thiab muab cov ntaub ntawv tsis muaj tseeb.
4. Kev daws teeb meem: xyuas kom meej tias cov ntaub ntawv tsis raug thiab yuam kev raug kuaj pom. Mirrored ports yuav lim tawm cov pob ntawv no, tiv thaiv cov engineers los ntawm kev muab cov ntaub ntawv tseem ceeb thiab ua tiav rau kev daws teeb meem.
5. IDS daim ntawv thov: IDS tso siab rau cov ntaub ntawv ua tiav los txheeb xyuas cov qauv kev nkag mus, thiab TAP tuaj yeem muab cov ntaub ntawv muaj kev ntseeg siab thiab ua tiav cov kwj deg mus rau qhov kev nkag mus rau qhov system.
6. Cov neeg rau zaub mov pawg: Cov chaw nres nkoj ntau qhov sib txuas tuaj yeem txuas 8/12 txuas rau tib lub sijhawm, ua kom muaj kev hloov pauv chaw taws teeb thiab dawb, uas yooj yim rau kev saib xyuas thiab tshuaj xyuas txhua lub sijhawm.
SPAN (Hloov Chaw Ntsuam Xyuas)tseem hu ua Mirrored Port lossis Port Mirror. Cov keyboards siab tshaj tuaj yeem luam cov ntaub ntawv ntawm ib lossis ntau qhov chaw nres nkoj mus rau qhov chaw nres nkoj, hu ua "daim iav chaw nres nkoj" lossis "chaw nres nkoj qhov chaw." Ib qho tshuaj ntsuam xyuas tuaj yeem txuas mus rau qhov chaw nres nkoj mirrored kom tau txais cov ntaub ntawv. Txawm li cas los xij, qhov no tuaj yeem cuam tshuam kev hloov pauv kev ua haujlwm thiab ua rau pob ntawv poob thaum cov ntaub ntawv overloaded.
Qhov zoo ntawm SPAN
1. Kev lag luam, tsis muaj khoom siv ntxiv.
2. Tag nrho cov tsheb khiav ntawm VLAN ntawm qhov hloov pauv tuaj yeem saib xyuas ib txhij.
3. Ib tus kws tshuaj ntsuam xyuas tuaj yeem saib xyuas ntau qhov txuas.
Qhov tsis zoo ntawm SPAN
1. Daim iav tsheb khiav los ntawm ntau qhov chaw nres nkoj mus rau ib qho chaw nres nkoj tuaj yeem ua rau cache overload thiab pob ntawv poob.
2. Cov pob ntawv raug ncua raws li lawv dhau los ntawm lub cache, ua rau nws tsis tuaj yeem txiav txim siab lub sijhawm teev sijhawm xws li jitter, packet interval tsom xam, thiab latency.
3. Tsis tuaj yeem soj ntsuam OSI txheej 1.2 yuam kev pob ntawv. Feem ntau cov ntaub ntawv mirroring ports lim tawm cov ntaub ntawv tsis tu ncua, uas tsis tuaj yeem muab cov ntaub ntawv ntxaws thiab muaj txiaj ntsig zoo rau kev daws teeb meem.
4. Vim tias cov tsheb khiav ntawm qhov chaw nres nkoj mirrored nce CPU load ntawm qhov hloov, nws yuav ua rau qhov hloov pauv qhov kev ua haujlwm poob qis.
Cov ntawv thov ntawm SPAN
1. Rau cov kev sib txuas uas tsis tshua muaj bandwidth thiab muaj peev xwm ua kom pom qhov zoo, ntau qhov chaw nres nkoj mirroring tuaj yeem siv rau kev soj ntsuam thiab kev saib xyuas yooj yim.
2. Kev soj ntsuam kev sib tw: Thaum tsis tas yuav tsum tau saib xyuas meej, tsuas yog cov ntaub ntawv tsis raug txheeb xyuas tau txaus.
3. Cov txheej txheem thiab kev txheeb xyuas daim ntawv thov: cov ntaub ntawv tseem ceeb tuaj yeem muab tau yooj yim thiab kev lag luam los ntawm daim iav chaw nres nkoj
4. Kev saib xyuas VLAN Tag Nrho: Ntau qhov chaw nres nkoj mirroring thev naus laus zis tuaj yeem siv tau yooj yim saib xyuas tag nrho VLAN ntawm kev hloov.
Taw qhia rau VLAN:
Ua ntej, cia peb qhia txog lub ntsiab lus tseem ceeb ntawm kev tshaj tawm xov xwm. Qhov no yog hais txog ntau yam nyob rau hauv qhov kev tshaj tawm xov xwm (qhov chaw nyob MAC yog tag nrho 1) tuaj yeem kis tau, thiab hauv lwm lo lus, qhov ntau ntawm kev sib txuas lus ncaj qha tuaj yeem ua tau. Hais lus nruj me ntsis, tsis yog tsuas yog tshaj tawm cov thav ntawv xwb, tab sis kuj muaj ntau cov thav ntawv thiab cov unicast tsis paub meej tuaj yeem taug kev ywj pheej hauv tib lub npe tshaj tawm.
Keeb kwm, Layer 2 hloov tuaj yeem tsim tau ib qho kev tshaj tawm xov xwm nkaus xwb. Nyob rau txheej 2 hloov yam tsis muaj VLANs teeb tsa, txhua qhov kev tshaj tawm yuav raug xa mus rau txhua qhov chaw nres nkoj tshwj tsis yog qhov chaw txais txais (dej nyab). Txawm li cas los xij, kev siv VLANs tso cai rau lub network tau muab faib ua ntau qhov tshaj tawm. VLANs yog cov thev naus laus zis siv los ntu ntu tshaj tawm cov npe ntawm Txheej 2 hloov pauv. Los ntawm kev siv VLANs, peb tuaj yeem tsim kev ywj pheej ntawm kev tshaj tawm xov xwm, ua kom yooj yim ntawm kev tsim network.
Post lub sij hawm: Sep-04-2025
