Ndikutsimikiza kuti mukudziwa za kulimbana pakati pa Network Tap (Test Access Point) ndi switch port analyzer (SPAN port) pazifukwa zowunikira Network. Zonsezi zili ndi mphamvu yowunikira kuchuluka kwa magalimoto pa netiweki ndikutumiza ku zida zachitetezo zakunja monga machitidwe ozindikira kulowerera, ma network logger, kapena ma network analyzer. Ma span port amakonzedwa pa ma network enterprise switch omwe ali ndi port mirroring function. Ndi doko lodzipereka pa switch yoyang'aniridwa yomwe imatenga kopi yowonera kuchuluka kwa magalimoto pa netiweki kuchokera pa switch kuti itumize ku zida zachitetezo. Koma TAP ndi chipangizo chomwe chimagawa mosavuta kuchuluka kwa magalimoto pa netiweki kuchokera pa netiweki kupita ku chida chachitetezo. TAP imalandira kuchuluka kwa magalimoto pa netiweki mbali zonse ziwiri nthawi yeniyeni komanso pa njira yosiyana.
Izi ndi zabwino zisanu zazikulu za TAP kudzera mu doko la SPAN:
1. TAP imagwira paketi iliyonse!
Span imachotsa mapaketi ndi mapaketi owonongeka omwe ali ang'onoang'ono kuposa kukula kocheperako. Chifukwa chake, zida zachitetezo sizingalandire magalimoto onse chifukwa ma span ports amapereka mwayi waukulu kwa magalimoto apainti. Kuphatikiza apo, magalimoto a RX ndi TX amaphatikizidwa pa doko limodzi, kotero mapaketi amatha kugwetsedwa. TAP imagwira magalimoto onse awiri pa doko lililonse, kuphatikiza zolakwika za doko.
2. Yankho lopanda ntchito, palibe makonzedwe a IP kapena magetsi ofunikira
Passive TAP imagwiritsidwa ntchito makamaka mu ma network a fiber optic. Mu passive TAP, imalandira magalimoto kuchokera mbali zonse ziwiri za netiweki ndikugawa kuwala komwe kukubwera kuti 100% ya magalimoto awonekere pa chida chowunikira. Passive TAP sikufuna magetsi aliwonse. Zotsatira zake, zimawonjezera kuchuluka kwa magalimoto, sizifuna kukonza kwambiri, komanso zimachepetsa ndalama zonse. Ngati mukufuna kuyang'anira kuchuluka kwa magalimoto a mkuwa, muyenera kugwiritsa ntchito active TAP. Active TAP imafuna magetsi, koma Active TAP ya Niagra imaphatikizapo ukadaulo woletsa kulephera womwe umachotsa chiopsezo cha kusokonezeka kwa ntchito ngati magetsi atayika.
3. Kutayika konse kwa paketi
Network TAP imayang'anira malekezero onse awiri a ulalo kuti iwonetse 100% kuchuluka kwa magalimoto a netiweki omwe ali mbali ziwiri. TAP siitaya mapaketi aliwonse, mosasamala kanthu za bandwidth yawo.
4. Yoyenera kugwiritsidwa ntchito pa intaneti yapakati mpaka yapamwamba
Doko la SPAN silingathe kukonza maulalo a netiweki omwe amagwiritsidwa ntchito kwambiri popanda kutaya mapaketi. Chifukwa chake, TAP ya netiweki imafunika pazochitika izi. Ngati kuchuluka kwa magalimoto kumachokera ku SPAN kuposa komwe kukulandiridwa, doko la SPAN limakhala lolembetsedwa kwambiri ndipo limakakamizika kutaya mapaketi. Kuti ligwire 10Gb ya magalimoto awiriawiri, doko la SPAN limafunika 20Gb ya mphamvu, ndipo 10Gb Network TAP idzatha kugwira 10Gb yonse ya mphamvu.
5. TAP Imalola magalimoto onse kudutsa, kuphatikiza ma tag a VLAN
Ma doko a span nthawi zambiri salola kuti zilembo za VLAN zidutse, zomwe zimapangitsa kuti zikhale zovuta kuzindikira mavuto a VLAN ndikupanga mavuto abodza. TAP imapewa mavuto otere mwa kulola magalimoto onse kudutsa.
Nthawi yotumizira: Julayi-18-2022
