A halin yanzu, ana amfani da na'urorin IO na SFP28/SFP56 da QSFP28/QSFP56 galibi don haɗa maɓallan da maɓallan da sabar a cikin manyan kabad a kasuwa. A zamanin 56Gbps, don neman ƙarin yawan tashar jiragen ruwa, mutane sun ƙara haɓaka na'urar QSFP-DD IO don cimma ƙarfin tashar jiragen ruwa na 400G. Tare da ninka ƙimar sigina, ƙarfin tashar jiragen ruwa na na'urar QSFP DD an ninka shi zuwa 800G, wanda ake kira OSFP112. An naɗe shi da tashoshi takwas masu sauri, kuma ƙimar watsawa na tashar guda ɗaya na iya kaiwa 112G PAM4. Jimlar ƙimar watsawa na duk fakitin ya kai 800G. Dawowa baya ya dace da OSFP56, idan aka kwatanta da lokaci guda don ninka saurin, ya cika ƙa'idar haɗin IEEE 802.3CK; Sakamakon haka, asarar haɗi zai ƙaru sosai kuma nisan watsawa na na'urar CABLE IO mai wucewa za a ƙara gajarta. Dangane da ƙa'idojin zahiri na zahiri, ƙungiyar IEEE 802.3CK, wacce ta tsara ƙayyadaddun bayanai na 112G, ta rage matsakaicin tsawon hanyar haɗin kebul na jan ƙarfe zuwa mita 2 bisa ga kebul na jan ƙarfe 56G IO tare da matsakaicin gudun mita 3.
Allon gwaji na QSFP-DD X 2 tashar jiragen ruwa 1.6Tbps
QQSFP -DD 800G yana fitowa da iska
Ana ƙayyade ƙarfin cibiyar bayanai ta hanyar sabar, maɓallan wuta, da abubuwan haɗin kai waɗanda ke daidaita junansu da kuma tura junansu zuwa ga ci gaba mai sauri da rahusa. Fasahar sauyawa ita ce babbar hanyar da ke motsa su tsawon shekaru da yawa. Yayin da OFC2021 ta ƙare kwanan nan, manyan masana'antun sadarwa na gani kamar Intel, Finisar, Xechuang, Opticexpress da New Yisheng duk sun nuna na'urorin gani na gani na jerin 800G. A lokaci guda, kamfanonin guntu na gani na ƙasashen waje sun nuna samfuran guntu masu inganci don 800G, kuma tsarin gargajiya na iya kasancewa har yanzu yana da matsayi a zamanin 800G. Muna tsammanin hanyar fasahar guntu na gani ta 800G ta fi bayyana, 800GDR8 da 2*FR4 suna da mafi girman damar; Yayin da kamfanonin guntu na gani na OFC2021 da na'urorin gani na gani suka ƙaddamar da sabbin samfura ɗaya bayan ɗaya, an ayyana ma'aunin lokaci da hanyar fasaha ta yau da kullun ta haɓaka 800G. Yawan masana'antar guntu na gani ta cibiyar bayanai yana ci gaba da ƙaruwa, kuma an ƙayyade sifar ci gaba na dogon lokaci. Mun yi imanin cewa a zamanin dijital da hankali, ci gaba da fashewar zirga-zirgar cibiyar bayanai ya kawo buƙatar ci gaba da maimaita na'urorin gani. Hanyar fasaha mai haske ta 800G tana nuna cewa 400G zai zama babban girma.
Lokacin da aka haɓaka ƙimar siginar 25Gbps zuwa ƙimar siginar 56Gbps na yanzu, saboda gabatar da tsarin siginar PAM4 (Pulse Amplitude Modulation) (ƙungiyar IEEE 802.3BS), babban ma'aunin mita na siginar da aka watsa akan hanyar haɗin Serdes Ethernet yana ƙaruwa ne kawai daga 12.89ghz zuwa 13.28ghz, kuma ma'aunin mita na asali na siginar ba ya canzawa sosai. Tsarin da zai iya tallafawa watsa siginar 25Gbps mai kyau za a iya haɓaka shi zuwa ƙimar siginar 56Gbps tare da ɗan ingantawa. Haɓakawa daga ƙimar siginar 56Gbps zuwa ƙimar siginar 112Gbps ba abu ne mai sauƙi ba. Tsarin siginar PAM4 da aka gabatar lokacin da aka haɓaka ma'aunin ƙimar 56Gbps zai fi yiwuwa a sake amfani da shi a ƙimar 112Gbps. Wannan yana canza ma'aunin mita na asali na siginar Ethernet 112Gbps zuwa 26.56ghz, wanda ya ninka na ƙimar siginar 56Gbps sau biyu. A cikin samar da ƙimar 112Gbps, buƙatun fasahar kebul za su fuskanci gwaji mafi wahala. A halin yanzu, kebul mai sauri 400Gbps yana da alaƙa da samfurin. Manyan samfuran farko galibi samfuran ƙasashen waje ne, kamar TE, LEONI, MOLEX, Amphenol, da sauransu. Kamfanonin cikin gida suma sun fara yin fice a cikin 'yan shekarun nan. Daga tsarin kera, kayan aiki da kayan aiki, mun yi kirkire-kirkire da yawa. A halin yanzu, akwai kamfanonin cikin gida waɗanda ke ƙera kebul na jan ƙarfe 800G, amma ba mu tara abubuwa da yawa ba. Shenzhen Hongteda, Dongguan Zhongyou Electronics, Dongguan Jinxinuo, Shenzhen Simic Communication, da sauransu, amma wahalar fasaha da ake da ita galibi tana cikin ɓangaren waya mara komai. A halin yanzu, yana da wuya a magance sigogin aikin lantarki mai yawan mita da buƙatun laushi na wayoyi na kebul a lokaci guda. Kebul na jan ƙarfe na DAC zai fuskanci lokacin ci gaba cikin sauri. Akwai ƙananan masana'antun waya na gida.
Kasuwa tana canzawa da sauri, kuma za ta ci gaba da sauri a nan gaba. Labari mai daɗi shine an sami ci gaba mai mahimmanci da ban sha'awa, daga hukumomin ƙa'idoji zuwa masana'antu, don ba da damar cibiyoyin bayanai su koma 400GB da 800GB. Amma cire shingayen fasaha rabin ƙalubale ne kawai. Sauran rabin shine lokaci. Da zarar an sami rashin fahimta, farashin zai yi yawa. Babban abin da ke cikin cibiyar bayanai ta cikin gida shine 100G. Daga cikin cibiyoyin bayanai na 100G da aka tura, 25% jan ƙarfe ne, 50% fiber ne mai nau'ikan yanayi da yawa, kuma 25% fiber ne mai nau'ikan module guda ɗaya. Waɗannan alkaluman wucin gadi ba daidai ba ne, amma ƙaruwar buƙatar bandwidth, iya aiki, da ƙarancin jinkiri yana haifar da ƙaura zuwa saurin hanyar sadarwa mai sauri. Don haka kowace shekara, daidaitawa da dorewar manyan cibiyoyin bayanai na girgije gwaji ne. A halin yanzu, 100GB yana mamaye kasuwa, tare da tsammanin 400GB a shekara mai zuwa. Duk da haka, kwararar bayanai har yanzu tana ci gaba da ƙaruwa, matsin lamba akan cibiyoyin bayanai zai ci gaba da ƙaruwa, bayan 400G, QSFP-DD 800G ya zo.
%2NXCT3.png)
Lokacin Saƙo: Agusta-16-2022
