Broket pactket (NPB) ndikusintha ngati chida cha network omwe amachokera ku zida zonyamula ku 1U ndi milandu ya 2U ndi milandu yayikulu. Mosiyana ndi kusinthana, NPB sikusintha magalimoto omwe amatuluka mwanjira iliyonse pokhapokha pokhapokha ataphunzitsidwa momveka bwino. NPB imatha kulandira magalimoto pamsonkhano umodzi kapena zingapo, amagwira ntchito zina zomwe zidakonzedwera pamsewu, kenako ndikutulutsa kamodzi kapena zingapo.
Izi nthawi zambiri zimatchedwa kuti zilizonse, zilizonse, zilizonse, komanso ma mapu aliwonse oyendetsa ndege. Ntchito zomwe zitha kuchitidwa nyengo zophweka kuchokera kuzinthu zosavuta, monga kutumiza kapena kutaya magalimoto, ku zovuta, monga kusefa chidziwitso pamwamba 5 kuti azindikire gawo linalake. Zolumikizana pa NPB zitha kukhala zolumikizana zamkuwa, koma nthawi zambiri zimakhala ndi mafelemu a sfp: omwe amalola mafelemu a QSFP, omwe amalola ogwiritsa ntchito kuti agwiritse ntchito mafayilo osiyanasiyana ndi bandwidth. Cholinga cha NPB chimapangidwa pa mfundo yokulitsa mphamvu ya zida zamaneti, makamaka kuwunikira, kuwunika, ndi zida zachitetezo.
Kodi ndi ntchito ziti zomwe zimapangitsa packet butket?
Kutalika kwa NPB ndi kochulukirapo ndipo kumatha kusiyanasiyana malinga ndi mtundu wa chipangizocho komanso chothandizira phukusi lake lidzafuna kukhala ndi mphamvu yolimba. Ambiri NPB (yodziwika bwino kwambiri NPB ikuluikulu ku OSI 2 mpaka 4.
Mwambiri, mutha kupeza zinthu zotsatirazi pa NPB ya L2-4: kapena madera ena a it) Monga momwe zimayembekezeredwa, L2-4's NPB imatha kusefa ma vran, macls a mac, mac ma adilesi (masitepe a tcp ndi chandamale), komanso chivundikiro, ndi arp. Izi sizomwe sizingagwiritsidwe ntchito, koma m'malo mwake zimapereka lingaliro la momwe NPB yogwiritsira ntchito zigawo 2 mpaka 4 imatha kupatukana ndikuzindikira kuchuluka kwa magalimoto. Chofunikira kwambiri kuti makasitomala ayenera kuyang'ana mu NPB ndi kumbuyo komwe sikumatseka.
Pulogalamu ya pact network ikufunika kuthana ndi kuchuluka kwa magalimoto onse omwe padoko lililonse pa chipangizocho. Mu chassis system, kuphatikizika ndi bankiyo ayeneranso kukwaniritsa kuchuluka kwa ma module olumikizidwa. Ngati NPB imagwetsa paketi, zida izi sizingamvetsetse bwino za netiweki.
Ngakhale ambiri a NPB amakhala okhazikika pa Asic kapena FPGA, chifukwa chotsimikizika cha packetriction Chinsinsi cha MyLining ™ packet osuntha (NPB) amatengera yankho la Asic. Izi nthawi zambiri zimakhala gawo lomwe limapereka kusinthasintha motero chifukwa chake silingachitike mu zida. Izi zimaphatikizapo zonyansa za packet, mapesistampps, SSL / TLS decorryption, kusaka kofunikira, komanso kusaka pafupipafupi. Ndikofunikira kudziwa kuti magwiridwe ake amatengera luso la CPU. .
Ngati mawonekedwe odalira CPU amathandizidwa, amakhala chinthu chopanda malire pazomwe npb. Kubwera kwa tchipisi a CPU ndi mapulogalamu osintha, monga cavium Xplung, opanda kanthu pentino ndi sannium terable othandizira pakhosi, ndipo nthawi zambiri amatchulidwa ngati ma packer a L4. Mwa zina zapamwamba zomwe zatchulidwa pamwambapa, kusaka kokhazikika ndi zitsanzo zabwino zamibadwo yotsatira. Kutha kusaka packet kumapereka mwayi wosefa magalimoto pagawo ndi magawo omwe afunsira, ndipo amaperekanso kuwongolera kwabwino kwambiri kuposa l2-4.
Kodi tsamba la pacrat la pacress limagwirizana bwanji?
NPB imatha kukhazikitsidwa mu zojambulajambula pamaneti awiri:
1- Munsoni
2- kunja kwa gulu.
Njira iliyonse ili ndi zabwino ndi zovuta zomwe zimapangitsa kuti magalimoto ena atheke m'njira zina zomwe zingachitike. Broker broker pactket ili ndi magalimoto enieni omwe amayenda pachipangizocho popita komwe akupita. Izi zimapereka mwayi wothana ndi magalimoto munthawi yeniyeni. Mwachitsanzo, powonjezera, kusintha ma tags a vanlan kapena kusintha kwa ma adilesi a IP, magalimoto amakopedwa ku ulalo wachiwiri. Monga njira yolumikizira, NPB imathanso kuperekanso chakudya china cholembera, monga ID, IPS, kapena ozimitsa moto. NPB imatha kuwunika momwe zidaliri ndi magalimoto oyenda bwino kwambiri pamayiko olemala.
Imakhala yosinthika kwambiri momwe magalimoto amapangidwira ndikuwunikanso zinthu zingapo zowunikira komanso chitetezo popanda kukhudza intaneti yeniyeni. Zimaperekanso mawonekedwe osaneneka pa intaneti ndipo amawonetsetsa kuti zida zonse zimalandira pamsewu womwe umafunikira kuti athandize bwino maudindo awo. Sizimawonetsetsa kuti kuyang'anira kwanu, chitetezo, ndi zida zachidule zimapangitsa magalimoto omwe amafunikira, komanso kuti ma network anu ali otetezeka. Zimapangitsanso kuti chipangizocho sichimatha kuwononga zinthu zosafunikira. Mwina teletzer yanu isafunika kujambula magalimoto osunga ndalama chifukwa zimatenga malo ofunika a disk nthawi yobwerera. Zinthu izi zimasefedwa mosavuta mu woyang'anira posunga magalimoto ena onse pachidacho. Mwina muli ndi subnet yonse yomwe mukufuna kubisika ku dongosolo lina lina; Apanso, izi zimachotsedwa mosavuta pa doko losankhidwa. M'malo mwake, singb imodzi yokha imatha kukonza maulalo apamsewu pokonza magalimoto ena.
Post Nthawi: Mar-09-2022
