Dab tsi yog qhov txawv ntawm Passive Network Tap thiab Active Network Tap?

A Network Kais, tseem hu ua Ethernet Tap, Copper Tap lossis Data Tap, yog ib qho cuab yeej siv hauv Ethernet-based networks los ntes thiab saib xyuas kev sib txuas hauv network. Nws yog tsim los muab kev nkag mus rau cov ntaub ntawv ntws ntawm cov khoom siv hauv lub network yam tsis muaj kev cuam tshuam kev lag luam network.

Lub hom phiaj tseem ceeb ntawm lub network kais yog kom duplicate network packets thiab xa lawv mus rau lub cuab yeej saib xyuas rau kev tshuaj xyuas lossis lwm lub hom phiaj. Nws feem ntau tau teeb tsa hauv kab ntawm cov khoom siv hauv network, xws li cov keyboards lossis routers, thiab tuaj yeem txuas nrog cov cuab yeej saib xyuas lossis network analyzer.

Network Taps tuaj nyob rau hauv ob qho tib si Passive thiab Active variations:

1.Passive Network Kais: Passive network kais tsis tas yuav tsum muaj lub zog sab nraud thiab ua haujlwm nkaus xwb los ntawm kev sib cais lossis theej cov tsheb khiav hauv lub network. Lawv siv cov tswv yim xws li kev sib txuas kho qhov muag lossis kev ntsuas hluav taws xob los tsim cov ntawv luam ntawm cov pob ntawv ntws los ntawm kev sib txuas hauv network. Cov pob ntawv sib npaug yog tom qab ntawd xa mus rau cov cuab yeej saib xyuas, thaum cov pob ntawv qub txuas ntxiv lawv qhov kev sib kis.

Cov kev sib faib feem ntau siv nyob rau hauv Passive Network Taps tuaj yeem sib txawv nyob ntawm cov ntawv thov tshwj xeeb thiab cov kev xav tau. Txawm li cas los xij, muaj ob peb tus qauv sib cais uas feem ntau ntsib hauv kev xyaum:

50:50 ib

Qhov no yog qhov sib npaug sib faib qhov twg qhov teeb meem kho qhov muag sib npaug sib npaug, nrog 50% mus rau lub network tseem ceeb thiab 50% raug coj los saib xyuas. Nws muab cov teeb liab sib npaug zog rau ob txoj kev.

70:30 ib

Hauv qhov piv txwv no, kwv yees li 70% ntawm cov teeb liab kho qhov muag raug xa mus rau lub network tseem ceeb, thaum qhov seem 30% yog tapped rau kev saib xyuas. Nws muab ib feem loj ntawm lub teeb liab rau lub network tseem ceeb thaum tseem tso cai rau kev saib xyuas lub peev xwm.

9 0:10

Qhov sib piv no faib feem ntau ntawm cov teeb liab kho qhov muag, nyob ib ncig ntawm 90%, mus rau lub network tseem ceeb, tsuas yog 10% tau tapping rau kev soj ntsuam lub hom phiaj. Nws muab qhov tseem ceeb rau kev ncaj ncees rau lub ntsiab network thaum muab ib feem me me rau kev saib xyuas.

95:0 5

Zoo ib yam li qhov piv ntawm 90: 10, qhov sib cais no xa 95% ntawm cov teeb liab kho qhov muag mus rau lub network tseem ceeb thiab khaws 5% rau kev saib xyuas. Nws muaj qhov cuam tshuam me me rau lub teeb liab tseem ceeb hauv lub network thaum muab ib feem me me rau kev tshuaj xyuas lossis saib xyuas cov kev xav tau.

 

 

 

 

2.Active Network Kais: Active network kais, ntxiv rau duplicating pob ntawv, muaj xws li active Cheebtsam thiab circuitry los txhim kho lawv functionality. Lawv tuaj yeem muab cov yam ntxwv zoo tshaj plaws xws li kev lim tsheb khiav, kev soj ntsuam raws tu qauv, ntsuas qhov sib npaug, lossis kev sib sau pob ntawv. Cov kais dej nquag feem ntau xav tau lub zog sab nraud los ua cov haujlwm ntxiv no.

Network Taps txhawb ntau yam Ethernet raws tu qauv, suav nrog Ethernet, TCP/IP, VLAN, thiab lwm yam. Lawv tuaj yeem tswj hwm qhov sib txawv network ceev, xws li qis dua li 10 Mbps mus rau qhov nrawm dua li 100 Gbps lossis ntau dua, nyob ntawm tus qauv kais tshwj xeeb thiab nws lub peev xwm.

Kev ntes cov tsheb khiav hauv lub network tuaj yeem siv rau kev saib xyuas lub network, daws teeb meem network teeb meem, tshuaj xyuas kev ua tau zoo, kuaj xyuas kev nyab xeeb kev hem, thiab ua qhov kev soj ntsuam hauv network. Network kais feem ntau yog siv los ntawm cov thawj coj hauv lub network, cov kws tshaj lij kev ruaj ntseg, thiab cov kws tshawb fawb kom tau txais kev nkag siab txog kev coj tus cwj pwm hauv lub network thiab xyuas kom lub network ua haujlwm, kev ruaj ntseg, thiab ua raws.