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

A Ukuthepha Kwenethiwekhi, eyaziwa nangokuthi i-Ethernet Tap, i-Copper Tap noma i-Data Tap, iyidivayisi esetshenziswa kumanethiwekhi asekelwe ku-Ethernet ukuze ibambe futhi iqaphe ithrafikhi yenethiwekhi. Yenzelwe ukunikeza ukufinyelela kwedatha egeleza phakathi kwamadivayisi enethiwekhi ngaphandle kokuphazamisa ukusebenza kwenethiwekhi.

Inhloso eyinhloko yokuthepha kwenethiwekhi ukukopisha amaphakethe enethiwekhi bese uwathumela kudivayisi yokuqapha ukuze ihlaziywe noma ezinye izinjongo. Ngokuvamile ifakwa kumugqa phakathi kwamadivayisi enethiwekhi, njengamaswishi noma ama-router, futhi ingaxhunywa kudivayisi yokuqapha noma i-analyzer yenethiwekhi.

Ama-Network Taps atholakala ngezindlela ezimbili ezingasebenzi kanye nezisebenzayo:

1.Amathephu Enethiwekhi Engasebenzi: Ama-passive network taps awadingi amandla angaphandle futhi asebenza ngokuhlukanisa noma ukuphinda ithrafikhi yenethiwekhi kuphela. Asebenzisa amasu afana nokuxhumanisa okubonakalayo noma ukulinganisa kukagesi ukudala ikhophi yamaphakethe ageleza ngesixhumanisi senethiwekhi. Amaphakethe aphindaphindwayo abese ethunyelwa kudivayisi yokuqapha, kuyilapho amaphakethe okuqala eqhubeka nokudlulisa kwawo okuvamile.

Izilinganiso ezivamile zokuqhekeka ezisetshenziswa ku-Passive Network Taps zingahluka kuye ngohlelo lokusebenza oluqondile kanye nezidingo. Kodwa-ke, kunezilinganiso ezimbalwa ezijwayelekile zokuqhekeka ezivame ukutholakala ekusebenzeni:

50:50

Lesi yisilinganiso sokuhlukanisa esilinganiselwe lapho isignali yokukhanya ihlukaniswe ngokulinganayo, lapho u-50% eya kunethiwekhi eyinhloko kanye no-50% esetshenziswa ukuqapha. Inikeza amandla esignali alinganayo kuzo zombili izindlela.

70:30

Kulesi silinganiso, cishe u-70% wesignali yokukhanya uqondiswa kunethiwekhi eyinhloko, kuyilapho u-30% osele esetshenziswa ukuqapha. Ihlinzeka ngengxenye enkulu yesignali kunethiwekhi eyinhloko ngenkathi isavumela amakhono okuqapha.

90:10

Lesi silinganiso sinikeza iningi lesignali yokukhanya, cishe u-90%, kunethiwekhi eyinhloko, kanti u-10% kuphela osetshenziswa ngezinjongo zokuqapha. Sibeka phambili ubuqotho besignali kunethiwekhi eyinhloko ngenkathi sinikeza ingxenye encane yokuqapha.

95:05

Ngokufanayo nesilinganiso esingu-90:10, lesi silinganiso sokuhlukaniswa sithumela u-95% wesiginali yokukhanya kunethiwekhi eyinhloko futhi sigcina u-5% wokuqapha. Sinikeza umthelela omncane esiginali eyinhloko yenethiwekhi ngenkathi sinikeza ingxenye encane yezidingo zokuhlaziya noma zokuqapha.

 

 

 

 

2.Amathephu Enethiwekhi Asebenzayo: Amathephu enethiwekhi asebenzayo, ngaphezu kokuphinda amaphakethe, afaka izingxenye ezisebenzayo kanye nezifunda ukuze kuthuthukiswe ukusebenza kwawo. Anganikeza izici ezithuthukisiwe njengokuhlunga ithrafikhi, ukuhlaziywa kwephrothokholi, ukulinganisela umthwalo, noma ukuhlanganiswa kwamaphakethe. Amathephu asebenzayo ngokuvamile adinga amandla angaphandle ukuze asebenze le misebenzi eyengeziwe.

Ama-Network Taps asekela amaphrothokholi ahlukahlukene e-Ethernet, kufaka phakathi i-Ethernet, i-TCP/IP, i-VLAN, nezinye. Angaphatha isivinini senethiwekhi esihlukene, kusukela kusivinini esiphansi njenge-10 Mbps kuya kusivinini esiphezulu njenge-100 Gbps noma ngaphezulu, kuye ngemodeli ethile yokuthepha kanye namakhono ayo.

Ithrafikhi yenethiwekhi ebanjiwe ingasetshenziselwa ukuqapha inethiwekhi, ukuxazulula izinkinga zenethiwekhi, ukuhlaziya ukusebenza, ukuthola izinsongo zokuphepha, kanye nokwenza ucwaningo lwe-forensics yenethiwekhi. Ama-network taps avame ukusetshenziswa ngabaphathi benethiwekhi, ochwepheshe bezokuphepha, kanye nabacwaningi ukuthola ulwazi mayelana nokuziphatha kwenethiwekhi nokuqinisekisa ukusebenza kwenethiwekhi, ukuphepha, kanye nokuthobela imithetho.