Yintoni umahluko phakathi kwePassive Network Tap kunye ne-Active Network Tap?

A I-Network Tap, ekwaziwa ngokuba yi-Ethernet Tap, iCopper Tap okanye iData Tap, sisixhobo esisetyenziswa kwiinethiwekhi ezisekelwe kwi-Ethernet ukubamba nokujonga ithrafikhi yenethiwekhi. Yenzelwe ukubonelela ngokufikelela kwidatha ehamba phakathi kwezixhobo zenethiwekhi ngaphandle kokuphazamisa ukusebenza kwenethiwekhi.

Injongo ephambili yokucofa inethiwekhi kukuphinda-phinda iipakethi zenethiwekhi uze uzithumele kwisixhobo sokubeka iliso ukuze zihlalutywe okanye ezinye iinjongo. Ngokwesiqhelo ifakwa kumgca phakathi kwezixhobo zenethiwekhi, ezifana neeswitshi okanye ii-routers, kwaye inokuqhagamshelwa kwisixhobo sokubeka iliso okanye i-network analyzer.

IiNetwork Taps ziza ngeendlela ezimbini: iPassive kunye neActive:

1.Iimpompo zeNethiwekhi ezingasebenziyo: Iimpompo zenethiwekhi ezingasebenziyo azifuni mandla angaphandle kwaye zisebenza kuphela ngokwahlulahlula okanye ukuphinda-phinda ithrafikhi yenethiwekhi. Zisebenzisa iindlela ezifana nokudibanisa okubonakalayo okanye ukulinganisela umbane ukwenza ikopi yeepakethi ezihamba ngekhonkco lenethiwekhi. Iipakethi eziphindwe kabini emva koko zithunyelwa kwisixhobo sokujonga, ngelixa iipakethi zokuqala ziqhubeka nokudlulisela kwazo okuqhelekileyo.

Iireyithingi zokwahlulahlula eziqhelekileyo ezisetyenziswa kwiPassive Network Taps zinokwahluka ngokuxhomekeke kwisicelo esithile kunye neemfuno. Nangona kunjalo, kukho iireyithingi ezimbalwa zokwahlulahlula eziqhelekileyo eziqhele ukubonwa ekusebenzeni:

50:50

Olu lumlinganiselo wokwahlulwahlulwa olinganayo apho isignali yokukhanya yahlulwe ngokulinganayo, apho i-50% iya kwinethiwekhi ephambili kwaye i-50% itsalwa ukuze ijongwe. Inika amandla alinganayo esignali kuzo zombini iindlela.

70:30

Kulo mlinganiselo, malunga ne-70% yesignali ye-optical ijoliswe kwinethiwekhi ephambili, ngelixa i-30% eseleyo isetyenziswa ukujonga. Ibonelela ngenxalenye enkulu yesignali kwinethiwekhi ephambili ngelixa ivumela amandla okujonga.

90:10

Olu linganiselo lunika uninzi lwesignali yokukhanya, malunga ne-90%, kwinethiwekhi ephambili, kwaye yi-10% kuphela esetyenziswayo ngeenjongo zokubeka esweni. Ibeka phambili ukuthembeka kwesignali kwinethiwekhi ephambili ngelixa inika inxalenye encinci yokubeka esweni.

95:05

Ngokufanayo nomlinganiselo we-90:10, lo mlinganiselo wokwahlulwahlulwa uthumela i-95% yesignali yokukhanya kwinethiwekhi ephambili kwaye ugcine i-5% yokubeka esweni. Inika impembelelo encinci kwisignali ephambili yenethiwekhi ngelixa ibonelela ngenxalenye encinci yeemfuno zohlalutyo okanye zokubeka esweni.

 

 

 

 

2.IiTaps zeNethiwekhi ezisebenzayo: Iimpompo zenethiwekhi ezisebenzayo, ukongeza ekuphindaphindeni iipakethi, ziquka izinto ezisebenzayo kunye neesekethe ukuphucula ukusebenza kwazo. Zinokubonelela ngeempawu eziphambili ezifana nokucoca ithrafikhi, uhlalutyo lweprotocol, ukulinganisela umthwalo, okanye ukuhlanganiswa kweepakethi. Iimpompo ezisebenzayo zihlala zifuna amandla angaphandle ukuze zisebenze le misebenzi eyongezelelweyo.

IiNetwork Taps zixhasa iiprotocol ezahlukeneyo ze-Ethernet, kuquka i-Ethernet, i-TCP/IP, i-VLAN, kunye nezinye. Zinokusingatha isantya senethiwekhi esahlukileyo, ukusuka kwisantya esiphantsi njenge-10 Mbps ukuya kwisantya esiphezulu njenge-100 Gbps okanye ngaphezulu, kuxhomekeke kwimodeli ethile yokucofa kunye namandla ayo.

Itrafikhi yenethiwekhi ebanjiweyo ingasetyenziselwa ukujonga inethiwekhi, ukusombulula iingxaki zenethiwekhi, ukuhlalutya ukusebenza, ukubona izisongelo zokhuseleko, kunye nokwenza uphando lwe-forensics yenethiwekhi. Ii-network taps zisetyenziswa rhoqo ngabalawuli benethiwekhi, iingcali zokhuseleko, kunye nabaphandi ukuze bafumane ulwazi malunga nokuziphatha kwenethiwekhi kunye nokuqinisekisa ukusebenza kwenethiwekhi, ukhuseleko, kunye nokuthobela imithetho.