{"id":110925,"date":"2023-10-18T21:10:24","date_gmt":"2023-10-18T19:10:25","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/google-otkryl-tehnologiyu-peredachi-dannyh-falcon"},"modified":"2023-10-18T21:10:24","modified_gmt":"2023-10-18T19:10:25","slug":"google-otkryl-tehnologiyu-peredachi-dannyh-falcon","status":"publish","type":"post","link":"https:\/\/prohoster.info\/ro\/blog\/news\/google-otkryl-tehnologiyu-peredachi-dannyh-falcon","title":{"rendered":"Google a deschis tehnologia de transmisie de date Falcon","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Compania Google a anun\u021bat deschiderea tehnologiei de transfer de date Falcon (hardware transport, nivel de transport accelerat hardware) \u0219i transferul dezvolt\u0103rii sale ulterioare \u00een proiectul Open Compute, destinat dezvolt\u0103rii colaborative a specifica\u021biilor deschise pentru echipamentele destinate centrelor de date. Falcon este prezentat ca o re\u021bea Ethernet de genera\u021bie urm\u0103toare, capabil\u0103 s\u0103 creasc\u0103 l\u0103\u021bimea de band\u0103 \u0219i s\u0103 \u00eembun\u0103t\u0103\u021beasc\u0103 eficien\u021ba transferului de date \u00een re\u021belele standard bazate pe Ethernet \u0219i TCP\/IP, critice \u00een privin\u021ba l\u0103\u021bimii de band\u0103 \u0219i \u00eent\u00e2rzierilor, cum ar fi re\u021belele pentru sisteme de calcul de \u00eenalt\u0103 performan\u021b\u0103 \u0219i inteligen\u021b\u0103 artificial\u0103.    <\/p>\n<p>Protocolul este scalabil pentru re\u021belele de centre de date \u0219i este proiectat pentru a oferi performan\u021b\u0103 mare \u0219i previzibil\u0103, \u00eent\u00e2rzieri reduse, flexibilitate \u0219i scalabilitate. Suportul pentru Falcon va fi asigurat \u00een primul r\u00e2nd de acceleratoarele de re\u021bea din seria Intel IPU E2000 (Infrastructure Processing Unit), care combin\u0103 un adaptor Ethernet cu un procesor programabil, pe care se pot desf\u0103\u0219ura opera\u021biuni de obicei realizate pe partea stivei de re\u021bea sau de sistem, cum ar fi gestionarea traficului, controlul congestion\u0103rii \u0219i analiza protocoalelor de nivel \u00eenalt.     <\/p>\n<p>Pentru a ob\u021bine \u00eent\u00e2rzieri reduse \u00een re\u021belele Ethernet de mare vitez\u0103, care permit pierderi de pachete, Falcon utilizeaz\u0103 trei principii: m\u0103surarea detaliat\u0103 a \u00eent\u00e2rzierilor \u00eentre trimiterea cererii \u0219i primirea r\u0103spunsului (RTT, round-trip time), reducerea hardware a traficului \u00een leg\u0103tur\u0103 cu fluxuri individuale \u0219i retransmiterea rapid\u0103 \u0219i precis\u0103 a pachetelor. Aceste propriet\u0103\u021bi sunt completate de mijloacele de acces simultan pe mai multe canale (Multipath) \u0219i de suportul pentru criptarea conexiunilor.      <\/p>\n<p>\u00cen implementarea Falcon sunt implicate urm\u0103toarele tehnologii:  <\/p>\n<ul>\n<li class=\"l\"> Carousel \u2014 mecanism de limitare a traficului (Traffic Shaping), care permite reglarea l\u0103\u021bimii de band\u0103 \u0219i intensit\u0103\u021bii fluxului de pachete \u00een ceea ce prive\u0219te gazdele individuale.\n<li class=\"l\"> Snap \u2014 subsistem de re\u021bea bazat pe microkernel, extensibil prin module, prin care se pot ad\u0103uga func\u021bionalit\u0103\u021bi suplimentare, de exemplu, ad\u0103ugarea de func\u021bii de virtualizare a re\u021belei, limitare a traficului \u0219i livrare a mesajelor.\n<li class=\"l\"> Swift \u2014 mecanism de control al congestion\u0103rii (Congestion Control) pentru re\u021bele la nivel de data center, care permite ob\u021binerea unor \u00eent\u00e2rzieri de sub 50 de microsecunde pentru mesaje RPC scurte, men\u021bin\u00e2nd \u00een acela\u0219i timp l\u0103\u021bimea de band\u0103 de 100 Gbps. <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/ro\/server\/\"   title=\"serverul\" data-wpil-keyword-link=\"linked\">serverul<\/a> o sarcin\u0103 aproape de 100%.\n<li class=\"l\"> RACK-TLP \u2014 algoritm de determinare a pierderii pachetelor pentru TCP.\n<li class=\"l\"> PLB \u2014 mecanism de balansare a \u00eenc\u0103rc\u0103rii, care folose\u0219te semnale de congestionare. Dup\u0103 implementarea PLB \u00een re\u021belele Google, dezechilibrul \u00eenc\u0103rc\u0103rii pe switch-uri a sc\u0103zut cu 60%, pierderile de pachete s-au redus cu 33%, iar \u00eent\u00e2rzierile \u00een livrarea mesajelor RPC scurte s-au diminuat cu 25%.\n<li class=\"l\"> CSIG (Congestion Signaling) \u2014 protocol de schimb de telemetrie folosit pentru a trimite semnale de congestionare \u0219i pentru gestionarea traficului.\n<li class=\"l\"> PSP (PSP Security Protocol) \u2014 protocol de criptare a traficului.  <\/ul>\n<p>Falcon utilizeaz\u0103 ca protocoale de nivel superior RDMA \u0219i NVM Express, dar permite \u0219i ad\u0103ugarea suportului pentru protocoale suplimentare de nivel superior sub form\u0103 de extensii. Func\u021bionalitatea Falcon este definit\u0103 de trei niveluri: nivelul pentru maparea cu protocoalele de nivel superior (ULP Mapping), nivelul tranzac\u021biilor \u0219i nivelul livr\u0103rii pachetelor. La primul nivel se efectueaz\u0103 controlul fluxului, procesarea mesajelor \u0219i maparea cu nivelurile superioare. La al doilea nivel se realizeaz\u0103 planificarea, gestionarea resurselor \u0219i ordonarea. La al treilea nivel se realizeaz\u0103 gestionarea congestion\u0103rii, limitarea traficului, men\u021binerea fiabilit\u0103\u021bii \u0219i utilizarea simultan\u0103 a diferitelor canale (Multipathing).                <center><img decoding=\"async\" alt=\"Google a deschis tehnologia de transmisie de date Falcon \" src=\"\/wp-content\/uploads\/2023\/10\/b8f7aa69bca7bd2d5b2b47ff424d330d.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/center><br \/>\n<br \/>Sursa: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=59949\">opennet.ro<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Google \u043e\u0431\u044a\u044f\u0432\u0438\u043b\u0430 \u043e\u0431 \u043e\u0442\u043a\u0440\u044b\u0442\u0438\u0438 \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u0438 \u043f\u0435\u0440\u0435\u0434\u0430\u0447\u0438 \u0434\u0430\u043d\u043d\u044b\u0445 Falcon (hardware transport, \u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u043e \u0443\u0441\u043a\u043e\u0440\u0435\u043d\u043d\u044b\u0439 \u0442\u0440\u0430\u043d\u0441\u043f\u043e\u0440\u0442\u043d\u044b\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c) \u0438 \u043f\u0435\u0440\u0435\u0432\u043e\u0434\u0430 \u0435\u0451 \u0434\u0430\u043b\u044c\u043d\u0435\u0439\u0448\u0435\u0439 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0432 \u043f\u0440\u043e\u0435\u043a\u0442 Open Compute, \u043d\u0430\u0446\u0435\u043b\u0435\u043d\u043d\u044b\u0439 \u043d\u0430 \u0441\u043e\u0432\u043c\u0435\u0441\u0442\u043d\u043e\u0435 \u0440\u0430\u0437\u0432\u0438\u0442\u0438\u0435 \u043e\u0442\u043a\u0440\u044b\u0442\u044b\u0445 \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0439 \u043e\u0431\u043e\u0440\u0443\u0434\u043e\u0432\u0430\u043d\u0438\u044f \u0434\u043b\u044f \u043e\u0441\u043d\u0430\u0449\u0435\u043d\u0438\u044f \u0434\u0430\u0442\u0430\u0446\u0435\u043d\u0442\u0440\u043e\u0432. Falcon \u043f\u0440\u0435\u043f\u043e\u0434\u043d\u043e\u0441\u0438\u0442\u0441\u044f \u043a\u0430\u043a Ethernet \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0435\u0433\u043e \u043f\u043e\u043a\u043e\u043b\u0435\u043d\u0438\u044f, \u0441\u043f\u043e\u0441\u043e\u0431\u043d\u044b\u0439 \u043f\u043e\u0432\u044b\u0441\u0438\u0442\u044c \u043f\u0440\u043e\u043f\u0443\u0441\u043a\u043d\u0443\u044e \u0441\u043f\u043e\u0441\u043e\u0431\u043d\u043e\u0441\u0442\u044c \u0438 \u0443\u0432\u0435\u043b\u0438\u0447\u0438\u0442\u044c \u044d\u0444\u0444\u0435\u043a\u0442\u0438\u0432\u043d\u043e\u0441\u0442\u044c \u043f\u0435\u0440\u0435\u0434\u0430\u0447\u0438 \u0434\u0430\u043d\u043d\u044b\u0445 \u0432 \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u0443\u044e\u0449\u0438\u0445 \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043d\u044b\u0445 \u0441\u0435\u0442\u044f\u0445 \u043d\u0430 \u0431\u0430\u0437\u0435 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":110926,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-110925","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Google \u043e\u0431\u044a\u044f\u0432\u0438\u043b\u0430 \u043e\u0431 \u043e\u0442\u043a\u0440\u044b\u0442\u0438\u0438 \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u0438 \u043f\u0435\u0440\u0435\u0434\u0430\u0447\u0438 \u0434\u0430\u043d\u043d\u044b\u0445 Falcon (hardware transport, \u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u043e \u0443\u0441\u043a\u043e\u0440\u0435\u043d\u043d\u044b\u0439 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