{"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\/da\/blog\/news\/google-otkryl-tehnologiyu-peredachi-dannyh-falcon","title":{"rendered":"Google har \u00e5bnet for datatransmissionsteknologien Falcon","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Google har annonceret \u00e5bningen af datatransmissionsteknologien Falcon (hardware transport, hardwareaccelereret transportniveau) og overf\u00f8rslen af dens videre udvikling til Open Compute-projektet, der sigter mod at fremme samarbejdet om \u00e5bne specifikationer for udstyr til datacentre. Falcon pr\u00e6senteres som Ethernet i n\u00e6ste generation, der kan \u00f8ge b\u00e5ndbredden og forbedre effektiviteten af datatransmission i eksisterende netv\u00e6rk baseret p\u00e5 Ethernet og TCP\/IP, som er kritiske for b\u00e5ndbredde og forsinkelse, s\u00e5som netv\u00e6rk til h\u00f8jtydende computering og kunstig intelligens.    <\/p>\n<p>Protokollen kan skaleres til datacenter-netv\u00e6rk og er designet til at sikre forudsigelig h\u00f8j ydeevne, lav forsinkelse, fleksibilitet og skalerbarhed. St\u00f8tte til Falcon vil f\u00f8rst blive leveret i netv\u00e6rksacceleratorer i Intel IPU E2000-serien (Infrastructure Processing Unit), som kombinerer en Ethernet-adapter med en programmerbar processor, hvorp\u00e5 operationer, der normalt udf\u00f8res af netv\u00e6rksstakken eller systemet, kan flyttes, s\u00e5som trafikstyring, overbelastningskontrol og fortolkning af h\u00f8j-niveau protokoller.     <\/p>\n<p>For at opn\u00e5 lave forsinkelser i h\u00f8jhastigheds-Ethernet-netv\u00e6rk, der t\u00e5ler pakktab, anvender Falcon tre principper: detaljeret m\u00e5ling af forsinkelser mellem afsendelse af anmodning og modtagelse af svar (RTT, round-trip time), hardwareimplementeret reduktion af trafik knyttet til individuelle str\u00f8mme og hurtig og pr\u00e6cis genoverf\u00f8rsel af pakker. De n\u00e6vnte egenskaber suppleres med midler til samtidig adgang via flere kanaler (Multipath) og underst\u00f8ttelse af kryptering af forbindelser.      <\/p>\n<p>F\u00f8lgende teknologier anvendes i implementeringen af Falcon:  <\/p>\n<ul>\n<li class=\"l\"> Carousel \u2014 en trafikbegr\u00e6nsningsmekanisme (Traffic Shaping), der g\u00f8r det muligt at regulere b\u00e5ndbredden og intensiteten af pakke str\u00f8mmen for individuelle v\u00e6rter.\n<li class=\"l\"> Snap \u2014 et netv\u00e6rkssystem baseret p\u00e5 mikrokerner, der kan udvides ved hj\u00e6lp af moduler, som g\u00f8r det muligt at tilf\u00f8je avanceret funktionalitet, s\u00e5som netv\u00e6rksvirtualisering, trafikbegr\u00e6nsning og beskedlevering.\n<li class=\"l\"> Swift \u2014 en mekanisme til overbelastningskontrol (Congestion Control) for datacenter-netv\u00e6rk, der g\u00f8r det muligt at opn\u00e5 latens p\u00e5 mindre end 50 mikrosekunder for korte RPC-beskeder, mens b\u00e5ndbredden opretholdes p\u00e5 100Gbps. <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/da\/server\/\"   title=\"server\" data-wpil-keyword-link=\"linked\">server<\/a> ved belastninger t\u00e6t p\u00e5 100%.\n<li class=\"l\"> RACK-TLP \u2014 en algoritme til at bestemme pakketab for TCP.\n<li class=\"l\"> PLB \u2014 en belastningsbalanceringmekanisme, der bruger overbelastningssignaler. Efter implementeringen af PLB i Googles netv\u00e6rk faldt ubalancen mellem belastningen p\u00e5 switchene med 60%, pakketabet reduceredes med 33%, og forsinkelsen i levering af korte RPC-beskeder faldt med 25%.\n<li class=\"l\"> CSIG (Congestion Signaling) \u2014 en protokol til telemetriskudveksling, der bruges til at sende overbelastningssignaler og ved trafikstyring.\n<li class=\"l\"> PSP (PSP Security Protocol) \u2014 en protokol til kryptering af trafik.  <\/ul>\n<p>Falcon bruger RDMA og NVM Express som \u00f8verste niveau protokoller, men tillader ogs\u00e5 tilf\u00f8jelse af st\u00f8tte til yderligere \u00f8verste niveau protokoller i form af udvidelser. Falcon-funktionaliteten defineres af tre niveauer: niveauet til kortl\u00e6gning af \u00f8verste niveau protokoller (ULP Mapping), transaktionsniveauet og pakkeleveringsniveauet. P\u00e5 det f\u00f8rste niveau udf\u00f8res flowkontrol, beskedbehandling og kortl\u00e6gning til \u00f8verste niveauer. P\u00e5 det andet niveau finder planl\u00e6gning, ressourceforvaltning og r\u00e6kkef\u00f8lge sted. P\u00e5 det tredje niveau h\u00e5ndteres overbelastning, trafikbegr\u00e6nsning, p\u00e5lidelighed og samtidig brug af forskellige kanaler (Multipathing).                <center><img decoding=\"async\" alt=\"Google har \u00e5bnet for datatransmissionsteknologien Falcon \" src=\"\/wp-content\/uploads\/2023\/10\/b8f7aa69bca7bd2d5b2b47ff424d330d.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/center><br \/>\n<br \/>Kilde: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=59949\">opennet.ru<\/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 5.0.3 - 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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