A Thepha ngenethiwekhi, eyaziwa nangokuthi Thephathet Tap, Thinta Copper noma i-Data Tap, iyithuluzi elisetshenziswe kumanethiwekhi asuselwa ku-Ethernet ukuthwebula nokuqapha ithrafikhi yenethiwekhi. Yenzelwe ukuhlinzeka ngokufinyelela kudatha egeleza phakathi kwamadivayisi wenethiwekhi ngaphandle kokuphazamisa ukusebenza kwenethiwekhi.
Inhloso eyinhloko yokuthepha kwenethiwekhi ukuphinda kabili amaphakethe enethiwekhi bese uyithumela kudivayisi yokuqapha ukuze ihlaziywe noma ezinye izinhloso. Ifakwe ngokujwayelekile kulayini phakathi kwamadivayisi wenethiwekhi, njengokushintshwa noma ama-routers, futhi angaxhunywa kudivayisi yokuqapha noma yokuhlaziywa kwenethiwekhi.
Ompompi wenethiwekhi beza kokuhlukahluka okusebenzayo nokusebenzayo:
1.Ompompi wenethiwekhi nje: Ompompi wenethiwekhi nje abadingi amandla bangaphandle futhi basebenze kuphela ngokuhlukanisa noma ukuphindaphindwa kwethrafikhi yenethiwekhi. Basebenzisa amasu anjenge-optical coupling noma i-balancing kagesi ukudala ikhophi lamaphakethe ageleza ngesixhumanisi senethiwekhi. Amaphakethe aphindwe kabili adluliselwa kudivayisi yokuqapha, ngenkathi amaphakethe okuqala eqhubeka nokudlulisela kwabo okujwayelekile.
Izilinganiso ezivamile zokuqhekeka ezisetshenziswa kumompompi wenethiwekhi engenakuqhathaniswa zingahluka ngokuya ngohlelo lokusebenza oluthile nezidingo. Kodwa-ke, kunezilinganiso ezimbalwa zokuhlukanisa ezijwayelekile ezivame ukuhlangana nokuzilolonga:
50:50
Lesi yisilinganiso esilinganiselwe sokulinganisa lapho isinali ye-optical sihlukaniswe ngokulinganayo, kanti ama-50% aya kunethiwekhi eyinhloko kanye nama-50% atholwe ngokuqapha. Inikeza amandla alinganayo wesiginali kuzo zombili izindlela.
70:30
Kulesi silinganiso, cishe ama-70% wesiginali ye-optical aqondiswe kwinethiwekhi eyinhloko, kanti ama-30% asele athweswe ukubhekwa. Inikeza ingxenye enkulu yesiginali yenethiwekhi enkulu ngenkathi isavumela amakhono okuqapha.
90:10
Lesi silinganiso sabela iningi lesiginali ye-optical, cishe ama-90%, kunethiwekhi eyinhloko, enaba ngu-10% kuphela otholwa ngezinhloso zokuqapha. Ibeka phambili ubuqotho besiginali yenethiwekhi eyinhloko ngenkathi ihlinzeka ngengxenye encane yokuqapha.
95:05
Ifana nesilinganiso esingu-90 Inikeza umthelela omncane kwisiginali yenethiwekhi eyinhloko ngenkathi ihlinzeka ngengxenye encane yokuhlaziya noma izidingo zokuqapha.
2.Ompompi wenethiwekhi esebenzayo: Ompompi wenethiwekhi esebenzayo, ngaphezu kwamaphakethe okuphindaphindwayo, faka izingxenye ezisebenzayo kanye nokujikeleza ukuze kuthuthukiswe ukusebenza kwawo. Banganikeza izici ezithuthukile njengokuhlunga kwethrafikhi, ukuhlaziywa kwe-protocol, ukulinganisa umthwalo, noma ukuhlanganiswa kwepakethe. Ompompi abasebenzayo badinga amandla angaphandle ukuba basebenzise le misebenzi eyengeziwe.
Ompompi wenethiwekhi basekela amaphrothokholi ahlukahlukene we-Ethernet, kufaka phakathi i-Ethernet, i-TCP / IP, VLAN, nabanye. Bangakwazi ukuphatha isivinini senethiwekhi ehlukile, okusukela ngejubane eliphansi njenge-10 mbps kuya kusivinini esiphakeme njengama-100 gbps noma ngaphezulu, kuya ngemodeli ethile yompompi namandla awo.
Ithrafikhi yenethiwekhi ethathwe ingasetshenziselwa ukuqapha kwenethiwekhi, izindaba zenethiwekhi, ukuhlaziya ukusebenza, ukuthola izinsongo zokuphepha, kanye nokwenza ama-forensics enethiwekhi. Ompompi wenethiwekhi bavame ukusetshenziswa ngabaphathi benethiwekhi, ochwepheshe bezokuphepha, kanye nabaphenyi ukuthola imininingwane ekuziphatheni kwenethiwekhi futhi baqinisekise ukusebenza kwenethiwekhi, ukuphepha, kanye nokuhambisana.
Manje-ke, umehluko muni phakathi kokuthepha kwenethiwekhi okungenamsoco nokuthepha kwenethiwekhi okusebenzayo?
A Thepha nge-Passive Network TAPiyithuluzi elilula eliphindaphinda amaphakethe wenethiwekhi ngaphandle kwamandla okwengeziwe wokucubungula futhi awadingi amandla angaphandle.
An Thepha ngenethiwekhi esebenzayo, ngakolunye uhlangothi, kufaka phakathi izingxenye ezisebenzayo, zidinga amandla, futhi zinikeze izici ezithuthukile zokuqapha kwenethiwekhi okuphelele nokuhlaziywa. Ukuzikhethela phakathi kwalokhu okubili kuncike kwizidingo ezithile zokuqapha, ukusebenza okufiselekayo, kanye nezinsizakusebenza ezikhona.
Thepha nge-Passive Network TAPVsThepha ngenethiwekhi esebenzayo
| Thepha nge-Passive Network TAP | Thepha ngenethiwekhi esebenzayo | |
|---|---|---|
| Ukusebenza | I-Passive Network Tap isebenza ngokuhlukanisa noma ukuphinda ukuphindaphinda ithrafikhi yenethiwekhi ngaphandle kokushintsha noma ukuguqula amaphakethe. Mane nje kwakha ikhophi yamaphakethe futhi kuwathumele kudivayisi yokuqapha, ngenkathi amaphakethe okuqala eqhubeka nokudlulisela kwabo okujwayelekile. | Ithebhu yenethiwekhi esebenzayo ingaphezu kokuphinda kabili okulula iphakethe. Kubandakanya izingxenye ezisebenzayo kanye nokujikeleza ukuthuthukisa ukusebenza kwayo. Ompompi abasebenzayo banganikeza izici ezinjengokuhlunga kwethrafikhi, ukuhlaziywa kwe-protocol, ukulinganisa umthwalo, ukuhlanganiswa kwepakethe, kanye nokuguqulwa kwepakethe noma umjovo noma umjovo wepakethi. |
| Isidingo samandla | Ompompi wenethiwekhi yokuphambuka abadingi amandla angaphandle. Zenzelwe ukusebenza kalula, zincike kumasu anjenge-Optical Coupling noma i-Balancing kagesi ukudala amaphakethe aphindwe kabili. | Izimpondo zenethiwekhi ezisebenzayo zidinga amandla angaphandle okusebenzisa imisebenzi yazo eyengeziwe nezinto ezisebenzayo. Bangadinga ukuxhunywa emthonjeni wamandla ukuhlinzeka ngokusebenza okufiselekayo. |
| Ukuguqulwa kwePacket | Ayiguquli noma ijova amaphakethe | Ingaguqula noma ijova amaphakethe, uma isekelwa |
| Amandla okuhlunga | Amandla akhawulelwe noma akukho okuhlunga | Ingahlunga amaphakethe asuselwa kwimibandela ethile |
| Ukuhlaziywa kwesikhathi sangempela | AKEKHO amandla okuhlaziya isikhathi sangempela | Ikwazi ukuhlaziywa kwesikhathi sangempela sethrafikhi yenethiwekhi |
| Ukuhlanganiswa kwendlu | Akukho mandla wokuhlanganisa ipakethe | Ingahlanganisa amaphakethe avela ezixhumanisi eziningi zenethiwekhi |
| Umthwalo wokulinganisa | Akukho amandla okulinganisa umthwalo | Ingalinganisa umthwalo kumadivayisi wokuqapha amaningi |
| Ukuhlaziywa kwe-Protocol | Amandla okuhlaziya akhawulelwe noma awekho | Ukunikezwa ukuhlaziya okujulile kwe-protocol kanye nokuhlobisa |
| Ukuphazamiseka kwenethiwekhi | Okungahambisani, akukho ukuphazamiseka kunethiwekhi | Ingaletha ukuphazamiseka okuncane noma i-latency kunethiwekhi |
| Ukuvumelana nezimo | Ukuguquguquka okulinganiselwe ngokwemigomo yezici | Ihlinzeka ngokulawula okuningi nokusebenza okuthuthukile |
| Khokhisa | Ngokuvamile kuyabiza kakhulu | Ngokuvamile izindleko eziphakeme ngenxa yezici ezingeziwe |
Isikhathi sePosi: Nov-07-2023
