Uyini umehluko phakathi kwe-Passive Network Tap kanye ne-Active Network Tap?

A I-Network Tap, eyaziwa nangokuthi i-Ethernet Tap, Copper Tap noma Data Tap, idivayisi esetshenziswa kumanethiwekhi asekelwe ku-Ethernet ukuze ithwebule futhi igade ithrafikhi yenethiwekhi. Iklanyelwe ukunikeza ukufinyelela kudatha egeleza phakathi kwamadivayisi enethiwekhi ngaphandle kokuphazamisa ukusebenza kwenethiwekhi.

Inhloso eyinhloko yokuthepha inethiwekhi iwukuphinda amaphakethe enethiwekhi futhi uwathumele kudivayisi yokuqapha ukuze ahlaziywe noma ezinye izinjongo. Ivamise ukufakwa kumugqa phakathi kwamadivayisi enethiwekhi, njengamaswishi noma amarutha, futhi ingaxhunywa kudivayisi yokuqapha noma isihlaziyi senethiwekhi.

Ama-Network Taps afika ngazo zombili izinhlobo ze-Passive and Active:

1.I-Passive Network Taps: Ompompi benethiwekhi abangenzi lutho abadingi amandla angaphandle futhi basebenza kuphela ngokuhlukanisa noma ukuphindaphinda ithrafikhi yenethiwekhi. Basebenzisa amasu afana nokuhlanganisa i-optical noma ukulinganisa kukagesi ukuze bakhe ikhophi yamaphakethe ageleza kusixhumanisi senethiwekhi. Amaphakethe ayimpinda abe esedluliselwa kudivayisi yokuqapha, kuyilapho amaphakethe okuqala eqhubeka nokudluliswa kwawo okuvamile.

Izilinganiso ezijwayelekile zokuhlukanisa ezisetshenziswa ku-Passive Network Taps zingahluka ngokuya ngohlelo lokusebenza nezimfuneko ezithile. Kodwa-ke, kunezilinganiso ezimbalwa ezijwayelekile zokuhlukanisa ezivame ukuhlangana nazo ekusebenzeni:

50:50

Lesi isilinganiso sokuhlukanisa esinokulinganisela lapho isignali ye-optical ihlukaniswa ngokulinganayo, kanti u-50% uya kunethiwekhi eyinhloko futhi u-50% uthephelwa ukuze uqashwe. Inikeza amandla esignali alinganayo kuzo zombili izindlela.

70:30

Kulesi silinganiso, cishe i-70% yesiginali ye-optical iqondiswe kunethiwekhi eyinhloko, kuyilapho i-30% esele ithathwa ukuze iqashwe. Ihlinzeka ngengxenye enkulu yesiginali yenethiwekhi eyinhloko ngenkathi isavumela amakhono okuqapha.

90:10

Lesi silinganiso sabela iningi lesiginali ye-optical, cishe u-90%, kunethiwekhi eyinhloko, ngo-10% kuphela othintwa ngezinjongo zokuqapha. Ibeka kuqala ubuqotho besignali kunethiwekhi eyinhloko kuyilapho inikeza ingxenye encane yokuqapha.

95:05

Ngokufana nesilinganiso esingu-90:10, lesi silinganiso sokuhlukanisa sithumela u-95% wesiginali ye-optical kunethiwekhi eyinhloko futhi igcine u-5% wokuqapha. Inikeza umthelela omncane kusignali yenethiwekhi enkulu kuyilapho inikeza ingxenye encane yokuhlaziya noma yokuqapha izidingo.

 

 

 

 

2.I-Active Network Taps: Ompompi benethiwekhi abasebenzayo, ngaphezu kwamaphakethe aphindayo, afaka izingxenye ezisebenzayo kanye nokujikeleza ukuze kuthuthukiswe ukusebenza kwawo. Bangahlinzeka ngezici ezithuthukisiwe njengokuhlunga kwethrafikhi, ukuhlaziywa kwephrothokholi, ukulinganisa komthwalo, noma ukuhlanganisa iphakethe. Ompompi abasebenzayo ngokuvamile badinga amandla angaphandle ukuze basebenzise le misebenzi eyengeziwe.

I-Network Taps isekela amaphrothokholi e-Ethernet ahlukahlukene, afaka i-Ethernet, i-TCP/IP, i-VLAN, nezinye. Bangakwazi ukuphatha izivinini zenethiwekhi ezihlukene, kusukela kuzivinini eziphansi ezifana no-10 Mbps ukuya kuzivinini eziphezulu njengo-100 Gbps noma ngaphezulu, kuye ngemodeli ethile yokuthepha namandla ayo.

Ithrafikhi yenethiwekhi ethwebuliwe ingasetshenziselwa ukuqapha inethiwekhi, ukuxazulula izinkinga zenethiwekhi, ukuhlaziya ukusebenza, ukuthola izinsongo zokuphepha, kanye nokwenza ama-forensics enethiwekhi. Ompompi benethiwekhi ngokuvamile basetshenziswa abalawuli benethiwekhi, ochwepheshe bezokuphepha, nabacwaningi ukuze bathole imininingwane ngokuziphatha kwenethiwekhi nokuqinisekisa ukusebenza kwenethiwekhi, ukuphepha, nokuhambisana.