{"id":100306,"date":"2021-05-28T10:22:53","date_gmt":"2021-05-28T08:22:53","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/protokol-quic-poluchil-status-predlozhennogo-standarta"},"modified":"2021-05-28T10:22:53","modified_gmt":"2021-05-28T08:22:53","slug":"protokol-quic-poluchil-status-predlozhennogo-standarta","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/news\/protokol-quic-poluchil-status-predlozhennogo-standarta","title":{"rendered":"Protokoll QUIC sai soovitatud standardi staatuse.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>IETF (Internet Engineering Task Force), mis tegeleb interneti protokollide ja arhitektuuri arendamisega, on l\u00f5petanud QUIC protokolli RFC koostamise ja avaldanud sellekohased spetsifikatsioonid identifikaatorite all RFC 8999 (versioon s\u00f5ltumatud protokolli omadused), RFC 9000 (\u00fclekandmine UDP peal), RFC 9001 (QUICi kanalite TLS-kr\u00fcpteerimine) ja RFC 9002 (\u00fclekande koormuse juhtimine ja andmete edastamise kaotsimineku m\u00e4\u00e4ramine).     <\/p>\n<p>RFC-d said &#171;Esiteks standardi&#187; staatuse, mille j\u00e4rel algab t\u00f6\u00f6 RFC staatuse mustandi standardi (Draft Standard) saamiseks, mis praktikas t\u00e4hendab protokolli t\u00e4ielikku stabiliseerimist ja k\u00f5igi esitatud m\u00e4rkuste arvesse v\u00f5tmist. HTTP\/3 protokoll, mis m\u00e4\u00e4ratleb QUIC protokolli kasutamise transpordina HTTP\/2 jaoks, on veel mustandi spetsifikatsiooni staadiumis, kuid varsti standardiseeritakse see IETF-is.     <\/p>\n<p>Oodatakse, et QUICi standardiseerimine toob kaasa laiemat selle protokolli kasutuselev\u00f5ttu ja arendust, sealhulgas selle baasil p\u00f5hinevaid laiendusi, nagu WebTransport (tehnoloogia andmete saatmiseks ja vastuv\u00f5tmiseks brauseri ja <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/et\/server\/dts-prohoster\/\"   title=\"serveriga\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"3011\">serveriga<\/a>) ja MASQUE (\u00fchenduste proximise tehnoloogia, mis laiendab SOCKS ja HTTP CONNECT v\u00f5imalusi ning kasutab HTTPS-i QUIC-i transpordina).            <\/p>\n<p>Tuletame meelde, et QUIC (Quick UDP Internet Connections) protokoll, mida arendab Google alates 2013. aastast, on alternatiiv TCP+TLS kombinatsioonile veebis, lahendades TCP-s \u00fchenduste loomise ja lepingute pikkade aegade probleemid ning elimineerides viivitused andmete edastamise k\u00e4igus pakettide kadumise korral. QUIC on UDP protokolli pealispind, mis toetab mitme \u00fchenduse multiplexerimist ning pakub kr\u00fcptimismeetodeid, mis on samav\u00e4\u00e4rsed TLS\/SSL-iga. IETF standardi arendamise protsessis viidi protokollis sisse muudatused, mis viisid kahe paralleelselt eksisteeriva haru tekkeni: \u00fcks HTTP\/3 jaoks ja teine, mida toetab Google (Chrome toetab m\u00f5lemat versiooni, samas kui Firefox toetab IETF varianti).         <\/p>\n<p>QUIC peamised omadused:  <\/p>\n<ul>\n<li class=\"l\"> K\u00f5rge turvalisus, mis on sarnane TLS-ile (QUIC v\u00f5imaldab tegelikult kasutada TLS-i UDP peal);  <\/li>\n<li class=\"l\"> Voogude terviklikkuse kontrollimine, mis takistab pakettide kadumist;    <\/li>\n<li class=\"l\"> V\u00f5imalus kohe \u00fchendus luua (0-RTT, umbes 75% juhtudest on andmed saadaval kohe p\u00e4rast \u00fchenduse loomise paketi saatmist) ja tagada minimaalne viivitus p\u00e4ringu saatmise ja vastuse saamise vahel (RTT, Round Trip Time);    <\/li>\n<li class=\"l\"> Pakettide uuesti edastamisel kasutatakse erinevat j\u00e4rjestuse numbrit, mis aitab v\u00e4ltida segadust vastuv\u00f5etud pakettide m\u00e4\u00e4ratlemisel ja kaotab aegumise probleemid;  <\/li>\n<li class=\"l\"> Paketi kadu m\u00f5jutab ainult seotud voogu ja ei peata andmete edastamist paralleelselt edastatavatest voogudest l\u00e4bi praeguse \u00fchenduse;    <\/li>\n<li class=\"l\"> Vigade parandamise vahendid, mis minimeerivad viivitused kadunud pakettide kordussaatmise t\u00f5ttu. Spetsiaalsete vigade parandamise koodide kasutamine paketi tasandil, et v\u00e4hendada olukordade arvu, mis vajavad kadunud paketi andmete uuesti edastamist.   <\/li>\n<li class=\"l\"> Kr\u00fcptograafiliste plokkide piirid on joondatud QUIC pakettide piiride k\u00fclge, mis v\u00e4hendab pakettide kadumise m\u00f5ju j\u00e4rgmiste pakettide sisu dekodeerimisele;    <\/li>\n<li class=\"l\"> TCP j\u00e4rjekorra ummistusega seotud probleeme pole.    <\/li>\n<li class=\"l\"> \u00dchenduse identifikaatori toetus, mis v\u00f5imaldab mobiilsete klientide uuesti \u00fchendamise aega l\u00fchendada;  <\/li>\n<li class=\"l\"> T\u00e4psemate \u00fchenduse koormusjuhtimise mehanismide toetus;  <\/li>\n<li class=\"l\"> V\u00f5imet kasutada igas suunas l\u00e4bip\u00e4\u00e4sutehnika prognoosimist, et tagada optimaalne pakettide saatmise intensiivsus, v\u00e4ltides \u00fclekoormusse sattumist, mille korral toimub pakettide kadu;    <\/li>\n<li class=\"l\">  M\u00e4rkimisv\u00e4\u00e4rne j\u00f5udluse ja l\u00e4bilaskev\u00f5ime kasvu v\u00f5rreldes TCP-ga. Videoteenuste, nagu YouTube, puhul on QUIC kasutamine n\u00e4idanud, et video vaatamise ajal on puhverdamise uuesti tegemise operatsioonide arv v\u00e4henenud 30%.          <\/ul>\n<p>Allikas: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=55226\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041a\u043e\u043c\u0438\u0442\u0435\u0442 IETF (Internet Engineering Task Force), \u0437\u0430\u043d\u0438\u043c\u0430\u044e\u0449\u0438\u0439\u0441\u044f \u0440\u0430\u0437\u0432\u0438\u0442\u0438\u0435\u043c \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u043e\u0432 \u0438 \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u044b \u0438\u043d\u0442\u0435\u0440\u043d\u0435\u0442\u0430, \u0437\u0430\u0432\u0435\u0440\u0448\u0438\u043b \u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 RFC \u0434\u043b\u044f \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430 QUIC \u0438 \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u044b\u0435 \u0441 \u043d\u0438\u043c \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438 \u043f\u043e\u0434 \u0438\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440\u0430\u043c\u0438 RFC 8999 (\u043d\u0435\u0437\u0430\u0432\u0438\u0441\u044f\u0449\u0438\u0435 \u043e\u0442 \u0432\u0435\u0440\u0441\u0438\u0438 \u0441\u0432\u043e\u0439\u0441\u0442\u0432\u0430 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430), RFC 9000 (\u0442\u0440\u0430\u043d\u0441\u043f\u043e\u0440\u0442 \u043f\u043e\u0432\u0435\u0440\u0445 UDP), RFC 9001 (TLS-\u0448\u0438\u0444\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u043a\u0430\u043d\u0430\u043b\u0430 \u0441\u0432\u044f\u0437\u0438 QUIC) \u0438 RFC 9002(\u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u0435\u0440\u0435\u0433\u0440\u0443\u0437\u043a\u043e\u0439 \u0438 \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u0438\u0435 \u043f\u043e\u0442\u0435\u0440\u0438 \u043f\u0430\u043a\u0435\u0442\u043e\u0432 \u043f\u0440\u0438 \u043f\u0435\u0440\u0435\u0434\u0430\u0447\u0435 \u0434\u0430\u043d\u043d\u044b\u0445). [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-100306","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.0.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041a\u043e\u043c\u0438\u0442\u0435\u0442 IETF (Internet Engineering Task Force), \u0437\u0430\u043d\u0438\u043c\u0430\u044e\u0449\u0438\u0439\u0441\u044f \u0440\u0430\u0437\u0432\u0438\u0442\u0438\u0435\u043c \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u043e\u0432 \u0438 \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u044b \u0438\u043d\u0442\u0435\u0440\u043d\u0435\u0442\u0430, \u0437\u0430\u0432\u0435\u0440\u0448\u0438\u043b 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