Ngiyaqiniseka ukuthi uyazi ngomzabalazo phakathi kwe-Network Tap (Test Access Point) kanye ne-switch port analyzer (i-SPAN port) ngezinjongo zokuqapha inethiwekhi. Zombili zinekhono lokulingisa ithrafikhi kunethiwekhi futhi ziyithumele kumathuluzi okuphepha angaphandle kwebhendi njengezinhlelo zokuthola ukungena, ama-network logger, noma ama-network analyzer. Ama-span port ahlelwe kuma-network enterprise switch anomsebenzi wokulinganisa i-port. Kuyi-port ezinikele ku-managed switch ethatha ikhophi yesibuko yethrafikhi yenethiwekhi kusuka ku-switch ukuze ithunyelwe kumathuluzi okuphepha. I-TAP, ngakolunye uhlangothi, iyidivayisi esabalalisa ithrafikhi yenethiwekhi kusuka kunethiwekhi kuya kuthuluzi lokuphepha. I-TAP ithola ithrafikhi yenethiwekhi kuzo zombili izinhlangothi ngesikhathi sangempela kanye nasesiteshini esihlukile.
Lezi yizinzuzo ezinhlanu eziyinhloko ze-TAP nge-SPAN port:
1. I-TAP ibamba iphakethe ngalinye!
I-Span Isusa amaphakethe namaphakethe onakele amancane kunosayizi omncane. Ngakho-ke, amathuluzi okuphepha awakwazi ukuthola yonke ithrafikhi ngoba ama-span port anikeza kuqala ithrafikhi yenethiwekhi. Ngaphezu kwalokho, ithrafikhi ye-RX ne-TX ihlanganiswa echwebeni elilodwa, ngakho-ke amaphakethe angase awe. I-TAP ibamba yonke ithrafikhi enezindlela ezimbili echwebeni ngalinye eliqondiwe, kufaka phakathi amaphutha echwebeni.
2. Isixazululo esingasebenzi nhlobo, akukho ukucushwa kwe-IP noma ukunikezwa kwamandla okudingekayo
I-Passive TAP isetshenziswa kakhulu kumanethiwekhi e-fiber optic. Ku-passive TAP, ithola ithrafikhi evela kuzo zombili izinhlangothi zenethiwekhi futhi ihlukanise ukukhanya okungenayo ukuze ithrafikhi engu-100% ibonakale ethuluzini lokuqapha. I-Passive TAP ayidingi ukunikezwa kwamandla. Ngenxa yalokho, yengeza ungqimba lokuphindaphindeka, ayidingi ukulungiswa okuningi, futhi inciphisa izindleko eziphelele. Uma uhlela ukuqapha ithrafikhi yethusi ye-Ethernet, udinga ukusebenzisa i-active TAP. I-Active TAP idinga ugesi, kodwa i-Active TAP ye-Niagra ifaka ubuchwepheshe be-bypass obuphephile obuqeda ingozi yokuphazamiseka kwesevisi uma kwenzeka ugesi uphela.
3. Akukho ukulahleka kwephakethe
I-Network TAP iqapha zombili izinhlangothi zesixhumanisi ukuze inikeze ukubonakala okungu-100% kwethrafikhi yenethiwekhi enezindlela ezimbili. I-TAP ayilahli noma yimaphi amaphakethe, kungakhathaliseki ukuthi angakanani umkhawulokudonsa wawo.
4. Kufanelekela ukusetshenziswa kwenethiwekhi ephakathi kuya kwephezulu
Imbobo ye-SPAN ayikwazi ukucubungula izixhumanisi zenethiwekhi ezisetshenziswa kakhulu ngaphandle kokulahla amaphakethe. Ngakho-ke, i-network TAP iyadingeka kulezi zimo. Uma ithrafikhi eningi iphuma ku-SPAN kunaleyo etholwayo, imbobo ye-SPAN iba nenani elikhulu futhi iphoqeleka ukulahla amaphakethe. Ukuze ibambe ithrafikhi engu-10Gb yezindlela ezimbili, imbobo ye-SPAN idinga umthamo ongu-20Gb, kanti i-Network TAP engu-10Gb izokwazi ukubamba wonke umthamo ongu-10Gb.
5. I-TAP Ivumela yonke ithrafikhi ukuthi idlule, kufaka phakathi amathegi e-VLAN
Ama-port e-span ngokuvamile awavumeli amalebula e-VLAN ukuthi adlule, okwenza kube nzima ukubona izinkinga ze-VLAN nokudala izinkinga mbumbulu. I-TAP igwema izinkinga ezinjalo ngokuvumela yonke ithrafikhi ukuthi idlule.
Isikhathi sokuthunyelwe: Julayi-18-2022
