M'mawonekedwe amtundu wa NPB, vuto lalikulu kwambiri kwa oyang'anira ndikutayika kwa paketi chifukwa cha kuchuluka kwa mapaketi owoneka bwino ndi maukonde a NPB. Kutayika kwa paketi mu NPB kungayambitse zizindikiro zotsatirazi pazida zowunikira kumbuyo:
- Alamu imapangidwa pamene chizindikiro chowunikira ntchito ya APM chikuchepa, ndipo chiwongoladzanja chochita bwino chimachepa
- Alamu yamtundu wa NPM yowunikira magwiridwe antchito amapangidwa
- Dongosolo loyang'anira chitetezo limalephera kuzindikira kuwukira kwa ma netiweki chifukwa chosowa zochitika
- Kutayika kwa zochitika zowunikira machitidwe a ntchito zomwe zimayambitsidwa ndi dongosolo lowunika ntchito
......
Monga njira yapakati yojambula ndi kugawa yowunikira Bypass, kufunikira kwa NPB kumawonekera. Nthawi yomweyo, momwe imagwirira ntchito pamapaketi a data ndizosiyana kwambiri ndi masinthidwe amtundu wapaintaneti wanthawi zonse, ndipo ukadaulo wowongolera kuchuluka kwa magalimoto pama network ambiri amoyo sukugwira ntchito ku NPB. Momwe mungathetsere kutayika kwa paketi ya NPB, tiyeni tiyambire pazifukwa zowunikira pakutayika kwa paketi kuti muwone!
NPB/TAP Packet Loss Loss Congestion Root Cause Analysis
Choyamba, timasanthula njira yeniyeni ya magalimoto ndi mgwirizano wa mapu pakati pa dongosolo ndi zomwe zikubwera ndi zotuluka za mlingo 1 kapena mlingo wa NPB network. Ziribe kanthu mtundu wamtundu wamtundu wa topology wa NPB, monga njira yosonkhanitsira, pali zolowetsamo zambiri zamtundu wamtundu ndi zotuluka pakati pa "kufikira" ndi "zotulutsa" zadongosolo lonse.
Kenako timayang'ana mtundu wabizinesi wa NPB kuchokera pamalingaliro a tchipisi ta ASIC pa chipangizo chimodzi:
Mbali 1: The "traffic" ndi "physical interface rate" ya zolowetsa ndi zotulutsa zolumikizira ndizosafanana, zomwe zimapangitsa kuchuluka kwa micro-bursts ndi zotsatira zosapeŵeka. Muzochitika zambiri zamagulu angapo kapena zambiri, kuchuluka kwa mawonekedwe otulutsa nthawi zambiri kumakhala kocheperako poyerekeza ndi kuchuluka kwa zomwe zalowetsedwa. Mwachitsanzo, njira za 10 za 10G zosonkhanitsa ndi 1 njira ya 10G yotulutsa; Muzochitika zotumizira ma multilevel, NPBBS yonse imatha kuwonedwa yonse.
Mbali 2: Zida za ASIC chip cache ndizochepa kwambiri. Pankhani ya ASIC chip yomwe imagwiritsidwa ntchito kwambiri, chipangizochi chokhala ndi 640Gbps kusinthanitsa chili ndi cache ya 3-10Mbytes; Chip cha 3.2Tbps chili ndi posungira 20-50 mbytes. Kuphatikizapo BroadCom, Barefoot, CTC, Marvell ndi ena opanga tchipisi ta ASIC.
Mbali 3: Njira yodziwika bwino yoyendetsera kayendedwe ka PFC sikugwira ntchito kuzinthu za NPB. Pakatikati pa kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe kamwemwemwemwemwemwemwe kapanganinganinganinganidwelingalingakire ndikhale Komabe, gwero la paketi la mautumiki a NPB ndi mapaketi owoneka bwino, kotero njira yolumikizirana imangotayidwa kapena kusungidwa.
Zotsatirazi ndi mawonekedwe a micro-burst pamayendedwe oyenda:
Kutengera mawonekedwe a 10G mwachitsanzo, mu chithunzi chachiwiri chowunika momwe magalimoto amayendera, kuchuluka kwa magalimoto kumasungidwa pafupifupi 3Gbps kwa nthawi yayitali. Pa tchati chowunikira ma millisecond, kuchuluka kwa magalimoto (MicroBurst) kwadutsa kwambiri mawonekedwe a 10G.
Njira Zofunikira Zochepetsera NPB Microburst
Chepetsani kusagwirizana kwa mawonekedwe aasymmetric- Mukamapanga netiweki, chepetsani kulowetsa kwa asymmetric ndikutulutsa mawonekedwe akuthupi momwe mungathere. Njira yodziwika bwino ndiyo kugwiritsa ntchito ulalo wapamwamba kwambiri wa mawonekedwe a uplink, ndikupewa mawonekedwe amtundu wa asymmetric (mwachitsanzo, kukopera 1 Gbit/s ndi 10 Gbit/s traffic nthawi imodzi).
Konzani ndondomeko yoyang'anira cache ya ntchito ya NPB- Ndondomeko wamba yoyang'anira cache yomwe imagwira ntchito pakusinthana sikugwira ntchito pamayendedwe otumizira a NPB. Ndondomeko yoyang'anira cache ya static guarantee + Dynamic Share iyenera kukhazikitsidwa potengera mawonekedwe a ntchito ya NPB. Pofuna kuchepetsa kukhudzidwa kwa NPB microburst pansi pa malire amakono a chip hardware chilengedwe.
Kukhazikitsa kasamalidwe kauinjiniya wamagalimoto- Khazikitsani kasamalidwe ka uinjiniya wamagalimoto oyambira magalimoto potengera kuchuluka kwa magalimoto. Onetsetsani kuchuluka kwa mautumiki a mizere yofunika kwambiri potengera kuchuluka kwa mizere, ndikuwonetsetsa kuti mapaketi amtundu wa anthu omwe ali ndi vuto la magalimoto amatha kutumizidwa popanda kutayika kwa paketi.
Yankho lololera ladongosolo limakulitsa kuthekera kwa paketi yosungira komanso kuthekera kopanga magalimoto- Imaphatikizira yankho kudzera munjira zosiyanasiyana zaukadaulo kukulitsa kuthekera kwa paketi yosungira ya ASIC chip. Mwa kupanga otaya m'malo osiyanasiyana, micro-burst imakhala yaying'ono-yunifolomu yoyenda pamapindikira pambuyo popanga.
Mylinking™ Micro Burst Traffic Management Solution
Chiwembu 1 - Njira yoyendetsera kachesi yokhathamiritsa pa netiweki + kasamalidwe kaubwino wapaintaneti wapagulu lonse
Kasamalidwe ka cache kakonzedwe ka netiweki yonse
Kutengera kumvetsetsa mozama za machitidwe a ntchito za NPB ndi zochitika zamabizinesi amakasitomala ambiri, zosonkhanitsira za Mylinking™ zimakhazikitsa "static assurance + dynamic sharing" NPB cache management strategy for network yonse, yomwe ili ndi zotsatira zabwino pa kasamalidwe ka cache traffic pakakhala kuchuluka kwa asymmetric zolowetsa ndi zotulutsa zotuluka. Kulekerera kwa microburst kumazindikirika mpaka pamlingo waukulu pomwe cache ya ASIC chip yakhazikitsidwa.
Microburst Processing Technology - Kasamalidwe kotengera zomwe zimayambira bizinesi
Pamene gawo loyendetsa magalimoto likuyendetsedwa paokha, lingathenso kuyikidwa patsogolo molingana ndi kufunikira kwa chida chowunikira kumbuyo kapena kufunikira kwa deta ya utumiki palokha. Mwachitsanzo, pakati pa zida zambiri zowunikira, APM/BPC imakhala yofunika kwambiri kuposa kusanthula kwachitetezo / zida zowunikira chitetezo chifukwa imaphatikizapo kuyang'anira ndi kusanthula zidziwitso zosiyanasiyana zamabizinesi ofunikira. Choncho, pazimenezi, deta yofunikira ndi APM/BPC ingatanthauzidwe kuti ndi yofunika kwambiri, deta yomwe ikufunika poyang'anira chitetezo / zida zowunikira chitetezo zingatanthauzidwe kuti ndizofunika kwambiri, ndipo deta yofunikira ndi zida zina zowunikira zikhoza kufotokozedwa kuti ndizochepa. chofunika kwambiri. Pamene mapepala osonkhanitsidwa a data akulowa pa doko lolowera, zofunikira zimatanthauzidwa molingana ndi kufunikira kwa mapaketi. Mapaketi azinthu zofunika kwambiri amatumizidwa makamaka pambuyo poti mapaketi azinthu zofunika kwambiri atumizidwa, ndipo mapaketi azinthu zina zoyambira amatumizidwa pambuyo pake mapaketi azinthu zofunika kwambiri atumizidwa. Ngati mapaketi azinthu zofunika kwambiri akupitilizabe kufika, mapaketi azinthu zofunika kwambiri amatumizidwa makamaka. Ngati zomwe zalowetsedwazo zikudutsa mphamvu yotumizira doko lotulutsa kwa nthawi yayitali, zochulukirapo zimasungidwa mu cache ya chipangizocho. Ngati cache yadzaza, chipangizocho chimakonda kutaya mapaketi apansi. Kasamalidwe kofunikira kameneka kamapangitsa kuti zida zowunikira zazikulu zitha kupeza bwino deta yoyambira yamagalimoto yofunikira kuti iwunikenso munthawi yeniyeni.
Microburst Processing Technology - gulu lotsimikizira njira yamtundu wonse wa mautumiki
Monga momwe zasonyezedwera m'chithunzi pamwambapa, ukadaulo wamagulu a magalimoto umagwiritsidwa ntchito kusiyanitsa mautumiki osiyanasiyana pazida zonse pagawo lofikira, kuphatikizira / pachimake, ndi gawo lotulutsa, ndipo zoyambira pamapaketi ojambulidwa zimayikidwanso chizindikiro. Woyang'anira SDN amapereka mfundo zoyendetsera magalimoto m'njira yapakati ndikuzigwiritsa ntchito pazida zotumizira. Zida zonse zomwe zikutenga nawo gawo pamanetiweki zimayikidwa pamizere yosiyana molingana ndi zomwe zimayendetsedwa ndi mapaketi. Mwanjira iyi, mapaketi ang'onoang'ono otsogola apamwamba amatha kutayika zero paketi. Kuthetsa bwino vuto la kutayika kwa paketi la kuwunika kwa APM ndikuwunika kwapadera kwa ntchito zamagalimoto.
Yankho 2 - GB-level Expansion System Cache + Traffic Shaping Scheme
GB Level System Extended Cache
Pamene chipangizo cha gawo lathu lopezera magalimoto chili ndi mphamvu zogwirira ntchito zapamwamba, zimatha kutsegula malo enaake mu kukumbukira (RAM) ya chipangizocho monga Buffer yapadziko lonse ya chipangizocho, chomwe chimapangitsa kwambiri Buffer mphamvu ya chipangizocho. Pachida chimodzi chogulira, mphamvu yochepera ya GB imatha kuperekedwa ngati malo a cache a chipangizo cholandirira. Ukadaulo uwu umapangitsa mphamvu ya Buffer ya chipangizo chathu chopezera anthu magalimoto kukhala apamwamba kuwirikiza nthawi zambiri kuposa chipangizo chachikhalidwe chotengera. Pansi pa mlingo womwewo wotumizira, nthawi yayitali yophulika yaying'ono ya chipangizo chathu chopezera magalimoto imakhala yayitali. Mulingo wa millisecond wothandizidwa ndi zida zogulira zachikhalidwe wakwezedwa mpaka gawo lachiwiri, ndipo nthawi yophulika yaying'ono yomwe imatha kupirira yawonjezeka ndi masauzande.
Multi-Queue Traffic Shaping Capability
Microburst Processing Technology - yankho lokhazikitsidwa ndi Buffer Caching yayikulu + Kupanga Magalimoto
Ndi mphamvu yayikulu kwambiri ya Buffer, kuchuluka kwa magalimoto opangidwa ndi kuphulika kwapang'onopang'ono kumasungidwa, ndipo ukadaulo wopanga magalimoto umagwiritsidwa ntchito pamawonekedwe otuluka kuti akwaniritse zotulutsa zosalala zamapaketi ku chida chowunikira. Kupyolera mukugwiritsa ntchito ukadaulo uwu, kutayika kwa paketi komwe kumachitika chifukwa cha micro-burst kumathetsedwa.
Nthawi yotumiza: Feb-27-2024
