Pakadali pano, ma module a IO a SFP28/SFP56 ndi QSFP28/QSFP56 amagwiritsidwa ntchito makamaka kulumikiza ma switch ndi masiwichi ndi maseva m'makabati akuluakulu pamsika.M'zaka za 56Gbps mlingo, pofuna kutsata kuchulukitsitsa kwa doko, anthu apititsa patsogolo gawo la QSFP-DD IO kuti akwaniritse mphamvu ya 400G.Ndi kuwirikiza kwa chiwongolero cha siginecha, mphamvu ya doko la QSFP DD module yawonjezeka mpaka 800G, yomwe imatchedwa OSFP112.Imaphatikizidwa ndi mayendedwe asanu ndi atatu othamanga kwambiri, ndipo kuchuluka kwa njira imodzi kumatha kufikira 112G PAM4.Chiwerengero chonse chotumizira phukusi lonselo ndi mpaka 800G.Kumbuyo kumagwirizana NDI OSFP56, poyerekeza ndi nthawi yomweyo kuwirikiza kawiri liwiro, kukumana ndi chikhalidwe cha IEEE 802.3CK;Zotsatira zake, kutayika kwa maulalo kudzawonjezeka kwambiri ndipo mtunda wotumizira wa module ya CABLE IO yokhazikika idzafupikitsidwa.Malingana ndi zovuta zenizeni zakuthupi, gulu la IEEE 802.3CK, lomwe linapanga ndondomeko ya 112G, linachepetsa kutalika kwa chingwe chamkuwa mpaka mamita 2 pamaziko a 56G copper cable IO ndi liwiro lalikulu la 3 mamita.
QSFP-DD X 2 port 1.6Tbps test board
QQSFP -DD 800G imabwera motsutsana ndi mphepo
Kuthekera kwapakatikati pa data kumatsimikiziridwa ndi maseva, masiwichi, ndi zinthu zolumikizana zomwe zimayenderana ndikukankhirana kukukula mwachangu, kotsika mtengo.Kusintha kwaukadaulo kwakhala njira yayikulu yoyendetsera zaka zambiri.Pamene OFC2021 ikufika kumapeto posachedwapa, opanga mauthenga owoneka bwino monga Intel, Finisar, Xechuang, Opticexpress ndi New Yisheng onse awonetsa ma module a 800G.Nthawi yomweyo, makampani opanga ma chip akunja akunja adawonetsa zida zapamwamba za 800G, ndipo chiwembu chachikhalidwe chingakhalebe ndi malo mu nthawi ya 800G.Tikuganiza kuti njira ya teknoloji ya 800G optical module ndiyowonjezereka, 800GDR8 ndi 2 * FR4 ili ndi kuthekera kwakukulu;Monga OFC2021 mainstream optical module ndi makampani opanga ma chip atulutsa zatsopano, nthawi ndi njira yaukadaulo yokwezera 800G yafotokozedwa.Mlingo wamakampani opanga ma data center optical module ukupitilirabe, ndipo kukula kwanthawi yayitali kwatsimikiziridwa.Timakhulupirira kuti mu nthawi ya digito ndi luntha, kuphulika kosalekeza kwa magalimoto a data center kwabweretsa kufunikira kwa kupitiriza kwa ma module optical.Njira yowonekera bwino yaukadaulo ya 800G ikuwonetsa kuti 400G idzakhala yayikulu.
Pamene mlingo wa chizindikiro cha 25Gbps umakwezedwa ku mlingo wamakono wa 56Gbps, chifukwa cha kukhazikitsidwa kwa PAM4 (Pulse Amplitude Modulation) system (gulu la IEEE 802.3BS), Malo oyambira pafupipafupi a siginecha yomwe imatumizidwa pa ulalo wa Serdes Ethernet imangopita mmwamba. kuchokera ku 12.89ghz mpaka 13.28ghz, ndipo ma frequency point point sisintha kwambiri.Machitidwe omwe angathandize kutumiza bwino kwa zizindikiro za 25Gbps akhoza kukwezedwa ku 56Gbps ma siginecha ndi kukhathamiritsa pang'ono.Kukweza kuchokera ku 56Gbps chizindikiro cha chizindikiro kufika ku 112Gbps chizindikiro sikophweka.Njira ya chizindikiro ya PAM4 yomwe idayambitsidwa pomwe mulingo wa 56Gbps udapangidwa ukhoza kugwiritsidwanso ntchito pamitengo ya 112Gbps.Izi zikusintha ma frequency point point ya 112Gbps Ethernet siginecha kukhala 26.56ghz, yomwe ili yowirikiza kawiri ya 56Gbps.Mumbadwo wa 112Gbps mlingo, zofunikira zamakono zamakono zidzakumana ndi mayesero ovuta kwambiri.Pakalipano, chingwe cha 400Gbps chothamanga kwambiri chikugwirizanitsidwa ndi mankhwala.Mitundu yakale kwambiri imakhala yakunja, monga TE, LEONI, MOLEX, Amphenol, ndi zina zambiri. Mitundu yakunyumba yayambanso kupitilira zaka zaposachedwa.Kuchokera pakupanga, zida ndi zida, tapanga zatsopano zambiri.Pakalipano, pali mabizinesi apakhomo omwe amapanga chingwe chamkuwa cha 800G, koma sitinasonkhanitse zambiri.Shenzhen Hongteda, Dongguan Zhongyou Electronics, Dongguan Jinxinuo, Shenzhen Simic Communication, etc., koma vuto lomwe lilipo luso makamaka mu gawo lopanda waya.Pakalipano, ndizovuta kuthetsa magawo apamwamba a magetsi oyendetsa magetsi komanso zofunikira zofewa za waya wa chingwe nthawi yomweyo.Chingwe chamkuwa cha DAC chidzakumana ndi nthawi yachitukuko chofulumira.Pali ochepa opanga mawaya am'deralo.
Msika ukusintha mwachangu, ndipo usintha mwachangu m'tsogolomu.Nkhani yabwino ndiyakuti kupita patsogolo kwakukulu komanso koyembekeza kwapangidwa, kuchokera ku mabungwe ovomerezeka kupita kumakampani, kuti ma data azitha kupita ku 400GB ndi 800GB.Koma kuchotsa zopinga zaumisiri ndi theka chabe la zovuta.Theka lina ndi nthawi.Kusaganizira molakwika kumachitika, mtengo umakhala wokwera.Chigawo chachikulu cha malo omwe alipo kale ndi 100G.Pakati pazigawo za data za 100G, 25% ndi mkuwa, 50% ndi fiber multimode, ndipo 25% ndi fiber single module.Manambala akanthawi izi sizolondola, koma kufunikira kokulirapo kwa bandwidth, mphamvu, ndi kutsika kwapang'onopang'ono kukuyendetsa kusamuka kupita ku liwiro la network.Chifukwa chake chaka chilichonse, kusinthika ndi kuthekera kwa malo akulu akulu a data ndi mayeso.Pakadali pano, 100GB ikusefukira pamsika, ndipo 400GB ikuyembekezeka chaka chamawa.Ngakhale izi, kuyenda kwa deta kukupitirirabe kuwonjezeka, kupanikizika kwa malo osungiramo deta kudzapitirirabe, kutsatira 400G, QSFP-DD 800G yafika.
%2NXCT3.png)
Nthawi yotumiza: Aug-16-2022
