Parizvino, mamodule eIO eSFP28/SFP56 neQSFP28/QSFP56 anonyanya kushandiswa kubatanidza maswitch nemaswitch nemasevha mumakabati makuru mumusika. Munguva ye56Gbps rate, kuti vatevere huwandu hweport density, vanhu vakagadzira QSFP-DD IO module kuti vawane 400G port capacity. Nekuwedzera kaviri kwesignal rate, port capacity yeQSFP DD module yakapetwa kaviri kusvika ku800G, iyo inonzi OSFP112. Yakarongedzwa nemachannel masere ekumhanya, uye transmission rate ye single channel inogona kusvika 112G PAM4. Transmission rate yese yepakeji inosvika 800G. Backward inoenderana neOSFP56, zvichienzaniswa nenguva imwe chete yekupeta speed kaviri, inosangana neIEEE 802.3CK association standard; Nekuda kweizvozvo, link loss ichawedzera zvakanyanya uye passive copper CABLE IO module ichapfupikiswa zvakanyanya. Zvichibva pazvirambidzo zvemuviri zvechokwadi, timu yeIEEE 802.3CK, iyo yakagadzira 112G specification, yakaderedza hurefu hwetambo yemhangura kusvika pamamita maviri zvichibva pa56G copper cable IO nekumhanya kwakanyanya kwemamita matatu.
Bhodhi rekuyedza reQSFP-DD X 2 port 1.6Tbps
QQSFP -DD 800G inouya ichipesana nemhepo
Kugona kwedata center kunoonekwa nemasevha, maswitch, uye zvinhu zvinobatanidza zvinoenzanisa uye zvinosundidzirana kukura nekukurumidza uye nemutengo wakaderera. Tekinoroji yekuchinjana yave iri simba guru rekufambisa kwemakore mazhinji. Sezvo OFC2021 yasvika pakupera munguva pfupi yapfuura, vagadziri vekutaurirana kwemaziso vakaita seIntel, Finisar, Xechuang, Opticexpress neNew Yisheng vese vakaratidza mamodule e800G series optical. Panguva imwe chete, makambani ekunze e optical chip akaratidza zvigadzirwa zvemachip epamusoro zve800G, uye chirongwa chekare chingave chichiripo munguva ye800G. Tinofunga kuti nzira yetekinoroji ye800G optical module yave kujeka, 800GDR8 ne2*FR4 zvine mukana wepamusoro; Sezvo makambani eOFC2021 mainstream optical module uye optical chip akatanga zvigadzirwa zvitsva imwe mushure meimwe, nzira yekuvandudza ye800G yakatsanangurwa. Mwero weindasitiri yedata center optical module unoramba uchichinja, uye hunhu hwekukura kwenguva refu hwakatarwa. Tinotenda kuti munguva yekushandiswa kwedhijitari neruzivo, kuwedzera kuri kuita traffic yedata centre kwaita kuti pave nekudiwa kwekudzokorora ma optical modules. Nzira yakajeka ye 800G inoratidza kuti 400G ichave yakakura.
Kana mwero wechiratidzo we25Gbps wavandudzwa kusvika padanho rechiratidzo re56Gbps razvino, nekuda kwekuunzwa kwePAM4 (Pulse Amplitude Modulation) signal system (IEEE 802.3BS group), fundamental frequency point yesignal inotumirwa paSerdes Ethernet link inongokwira kubva pa12.89ghz kuenda pa13.28ghz, uye signal fundamental frequency point haichinje zvakanyanya. Masisitimu anogona kutsigira kutapurirana kwakanaka kwezviratidzo zve25Gbps anogona kukwidziridzwa kusvika pa56Gbps signal rates nekuita kuti zviite sezviri nyore. Kusimudzira kubva pa56Gbps signal rate kuenda pa112Gbps signal rate hakusi nyore. PAM4 signal system yakatangwa pakagadzirwa mwero we56Gbps inogona kushandiswazve pa112Gbps rates. Izvi zvinoshandura fundamental frequency point ye112Gbps Ethernet signal kuenda pa26.56ghz, inova kaviri pane 56Gbps signal rate. Mukugadzirwa kwe112Gbps rate, zvinodiwa zve cable technology zvichasangana nemuedzo wakaoma. Parizvino, tambo ye400Gbps inomhanya zvakanyanya yakabatana nechigadzirwa ichi. Makambani ekutanga akura zvikuru ndiwo ekunze, akadai seTE, LEONI, MOLEX, Amphenol, nezvimwewo. Makambani emuno akatangawo kukwira kupfuura mamwe mumakore achangopfuura. Kubva mukugadzirwa kwezvinhu, michina nezvinhu, takaita zvinhu zvitsva zvakawanda. Parizvino, kune mabhizinesi emuno anogadzira tambo yemhangura ye800G, asi hatina kuunganidza zvakawanda. Shenzhen Hongteda, Dongguan Zhongyou Electronics, Dongguan Jinxinuo, Shenzhen Simic Communication, nezvimwewo, asi dambudziko riripo riri muchikamu chewaya isina chinhu. Parizvino, zvakaoma kugadzirisa maparamita emagetsi ane frequency yakakwira uye zvinodiwa zvekupfava kwewaya yetambo panguva imwe chete. Waya yemhangura yeDAC ichatarisana nenguva yekukura nekukurumidza. Kune vashoma chete vagadziri vewaya vemunharaunda.
Musika uri kuchinja nekukurumidza, uye uchachinja nekukurumidza mune ramangwana. Mashoko akanaka ndeekuti kufambira mberi kukuru uye kunovimbisa kwaitwa, kubva kumasangano ekuenzanisa kusvika kuindasitiri, kuti nzvimbo dzedata dzikwanise kutamira ku400GB ne800GB. Asi kubvisa zvipingamupinyi zvetekinoroji ihafu yedambudziko. Imwe hafu ndeyenguva. Kana kusafunga zvakanaka kwaitika, mutengo uchakwira. Nzvimbo huru yenzvimbo yedata iripo yemuno i100G. Pakati penzvimbo dzedata dze100G dzakaiswa, 25% imhangura, 50% ifiber yemhando dzakasiyana, uye 25% ifiber yemodule imwe chete. Nhamba idzi dzechinguvana hadzisi dzakanyatsojeka, asi kudiwa kuri kukura kwebandwidth, kugona, uye latency yakaderera kuri kutungamira kukufamba kukuru kwenetwork. Saka gore rega rega, kuchinjika uye kushanda kwenzvimbo dzedata dzemafuru dzakakura kuyedza. Parizvino, 100GB iri kuzara mumusika, ne400GB inotarisirwa gore rinouya. Pasinei neizvi, kufambiswa kwedata kuchiri kuramba kuchiwedzera, kumanikidzwa kwenzvimbo dzedata kucharamba kuchiwedzera, mushure me400G, QSFP-DD 800G yasvika.
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Nguva yekutumira: Nyamavhuvhu-16-2022
