Qhov txawv ntawm Passive Network Tap thiab Active Network Tap yog dab tsi?

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

Lub hom phiaj tseem ceeb ntawm lub network tap yog los theej cov network packets thiab xa mus rau lub cuab yeej saib xyuas rau kev tshuaj xyuas lossis lwm yam. Nws feem ntau yog ntsia rau hauv kab ntawm cov khoom siv network, xws li cov switches lossis routers, thiab tuaj yeem txuas nrog lub cuab yeej saib xyuas lossis lub network analyzer.

Network Taps muaj ob qho tib si Passive thiab Active variations:

1.Cov Kev Siv Network Tsis Siv NeegCov cuab yeej xa xov tsis siv hluav taws xob sab nraud tsis xav tau hluav taws xob los ntawm sab nraud thiab tsuas yog ua haujlwm los ntawm kev faib lossis theej cov tsheb khiav hauv network. Lawv siv cov txheej txheem xws li kev sib txuas optical lossis kev sib npaug hluav taws xob los tsim cov ntawv theej ntawm cov pob ntawv uas ntws los ntawm qhov txuas network. Cov pob ntawv theej tom qab ntawd raug xa mus rau lub cuab yeej saib xyuas, thaum cov pob ntawv qub txuas ntxiv lawv txoj kev xa mus ib txwm.

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

50:50

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

70:30

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

90:10

Qhov piv no faib feem ntau ntawm cov teeb liab kho qhov muag, kwv yees li 90%, rau lub network tseem ceeb, tsuas yog 10% raug siv rau kev saib xyuas. Nws muab qhov tseem ceeb rau kev ua haujlwm ntawm cov teeb liab rau lub network tseem ceeb thaum muab ib feem me me rau kev saib xyuas.

95:05

Zoo ib yam li qhov sib piv 90:10, qhov sib piv faib no xa 95% ntawm cov teeb liab optical mus rau lub network tseem ceeb thiab khaws cia 5% rau kev saib xyuas. Nws muab qhov cuam tshuam tsawg kawg nkaus rau lub teeb liab network tseem ceeb thaum muab ib feem me me rau kev tshuaj xyuas lossis kev saib xyuas.

 

 

 

 

2.Cov Kev Siv Network Uas Muaj ZogCov cuab yeej siv network uas nquag siv, ntxiv rau kev theej cov pob ntawv, suav nrog cov khoom siv thiab cov hluav taws xob kom txhim kho lawv txoj haujlwm. Lawv tuaj yeem muab cov yam ntxwv siab heev xws li kev lim cov tsheb khiav, kev tshuaj xyuas cov txheej txheem, kev sib npaug ntawm cov khoom thauj, lossis kev sib sau ua ke ntawm cov pob ntawv. Cov cuab yeej siv network feem ntau xav tau lub zog sab nraud los ua haujlwm cov haujlwm ntxiv no.

Cov Network Taps txhawb nqa ntau yam Ethernet protocols, suav nrog Ethernet, TCP/IP, VLAN, thiab lwm yam. Lawv tuaj yeem tswj hwm ntau yam kev sib txuas lus ceev, xws li qis dua li 10 Mbps mus rau qhov siab dua li 100 Gbps lossis ntau dua, nyob ntawm tus qauv tap tshwj xeeb thiab nws cov peev xwm.

Cov ntaub ntawv khiav hauv network uas tau ntes tau siv tau rau kev saib xyuas network, daws teeb meem network, tshuaj xyuas kev ua tau zoo, nrhiav kev hem thawj rau kev ruaj ntseg, thiab ua kev tshawb nrhiav txog network. Cov thawj coj network, cov kws tshaj lij kev ruaj ntseg, thiab cov kws tshawb fawb feem ntau siv cov cuab yeej network los nkag siab txog tus cwj pwm ntawm network thiab xyuas kom meej tias network ua tau zoo, kev ruaj ntseg, thiab kev ua raws li txoj cai.