{"id":123598,"date":"2025-04-18T15:05:14","date_gmt":"2025-04-18T13:05:14","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-yadre-linux-6-16-budet-prekrashhena-podderzhka-protokola-dccp"},"modified":"2025-04-18T15:05:14","modified_gmt":"2025-04-18T13:05:14","slug":"v-yadre-linux-6-16-budet-prekrashhena-podderzhka-protokola-dccp","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sk\/blog\/news\/v-yadre-linux-6-16-budet-prekrashhena-podderzhka-protokola-dccp","title":{"rendered":"V jadre Linux 6.16 sa skon\u010d\u00ed podpora protokolu DCCP","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

V r\u00e1mci vetvy net-next, kde s\u00fa zhroma\u017e\u010fovan\u00e9 zmeny na zaradenie do bud\u00faceho vydania jadra Linux 6.16, bola prijat\u00e1 zmena, ktor\u00e1 odstra\u0148uje podporu pre sie\u0165ov\u00fd protokol DCCP (Datagram Congestion Control Protocol). Podpora pre netfilter moduly na filtrovanie paketov DCCP zost\u00e1va zachovan\u00e1. Protokol DCCP bol \u0161tandardizovan\u00fd a prijat\u00fd do jadra v roku 2006. Predpokladalo sa, \u017ee DCCP zv\u00fd\u0161i efektivitu streamovania a internetovej telefonie v pre\u0165a\u017een\u00fdch sie\u0165ach, ale v skuto\u010dnosti sa protokol uk\u00e1zal ako nedostato\u010dne vyu\u017e\u00edvan\u00fd a nez\u00edskal roz\u0161\u00edrenie. <\/p>\n

K\u00f3d DCCP v jadre zost\u00e1va bez podpory u\u017e p\u00e4\u0165 rokov a zmeny v posledn\u00fdch rokoch sa obmedzovali iba na opravy sp\u00f4soben\u00e9 refaktoringom API jadra. Pred nieko\u013ek\u00fdmi rokmi bola v r\u00e1mci projektu Multipath DCCP podniknut\u00e1 snaha o rozvoj protokolu DCCP v jadre, ale \u010das\u0165 k\u00f3du tohto projektu zost\u00e1va propriet\u00e1rna. V\u00fdvoj\u00e1r Multipath DCCP pl\u00e1noval otvori\u0165 k\u00f3d propriet\u00e1rnych \u010dast\u00ed, prenies\u0165 nahromaden\u00e9 zmeny do hlavn\u00e9ho jadra a prevzia\u0165 zodpovednos\u0165 za \u00fadr\u017ebu DCCP v jadre Linux, ale u\u017e nieko\u013eko rokov sa neozval. <\/p>\n

Odstr\u00e1nenie DCCP z jadra Linux odstr\u00e1ni prek\u00e1\u017eky, ktor\u00e9 br\u00e1nia prepracovaniu d\u00e1tovej \u0161trukt\u00fary inet_connection_sock na zv\u00fd\u0161enie efektivity pr\u00e1ce TCP z\u00e1sobn\u00edka. V s\u00fa\u010dasnosti je \u0161trukt\u00fara inet_connection_sock spolo\u010dn\u00e1 pre TCP a DCCP, \u010do neumo\u017e\u0148uje implement\u00e1ciu niektor\u00fdch optimaliz\u00e1ci\u00ed pre TCP bez prepracovania k\u00f3du DCCP. Najm\u00e4 prepracovanie \u0161trukt\u00fary inet_connection_sock umo\u017en\u00ed efekt\u00edvnej\u0161ie vyu\u017eitie procesorovej cache pri zr\u00fdchlenej spr\u00e1ve paketov pre u\u017e vzniknut\u00e9 TCP pripojenie (TCP fastpath).
\n
Zdroj: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0412 \u0441\u043e\u0441\u0442\u0430\u0432 \u0432\u0435\u0442\u043a\u0438 net-next, \u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u043d\u0430\u043a\u0430\u043f\u043b\u0438\u0432\u0430\u044e\u0442\u0441\u044f \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u0434\u043b\u044f \u043f\u0435\u0440\u0435\u0434\u0430\u0447\u0438 \u0432 \u0441\u043e\u0441\u0442\u0430\u0432 \u0431\u0443\u0434\u0443\u0449\u0435\u0433\u043e \u0432\u044b\u043f\u0443\u0441\u043a\u0430 \u044f\u0434\u0440\u0430 Linux 6.16, \u043f\u0440\u0438\u043d\u044f\u0442\u043e \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0435, \u0443\u0434\u0430\u043b\u044f\u044e\u0449\u0435\u0435 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0443 \u0441\u0435\u0442\u0435\u0432\u043e\u0433\u043e \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430 DCCP (Datagram Congestion Control Protocol). \u041f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430 netfilter-\u043c\u043e\u0434\u0443\u043b\u0435\u0439 \u0434\u043b\u044f \u0444\u0438\u043b\u044c\u0442\u0440\u0430\u0446\u0438\u0438 \u043f\u0430\u043a\u0435\u0442\u043e\u0432 DCCP \u0441\u043e\u0445\u0440\u0430\u043d\u0435\u043d\u0430. \u041f\u0440\u043e\u0442\u043e\u043a\u043e\u043b DCCP \u0431\u044b\u043b \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d \u0438 \u043f\u0440\u0438\u043d\u044f\u0442 \u0432 \u0441\u043e\u0441\u0442\u0430\u0432 \u044f\u0434\u0440\u0430 \u0432 2006 \u0433\u043e\u0434\u0443. \u041f\u0440\u0435\u0434\u043f\u043e\u043b\u0430\u0433\u0430\u043b\u043e\u0441\u044c, \u0447\u0442\u043e DCCP \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u0442 \u043f\u043e\u0432\u044b\u0441\u0438\u0442\u044c \u044d\u0444\u0444\u0435\u043a\u0442\u0438\u0432\u043d\u043e\u0441\u0442\u044c \u043f\u043e\u0442\u043e\u043a\u043e\u0432\u043e\u0433\u043e \u0432\u0435\u0449\u0430\u043d\u0438\u044f […]<\/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-123598","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47V jadre Linux 6.16 bude ukon\u010den\u00e1 podpora protokolu DCCP | ProHoster","description":"V r\u00e1mci vetvy net-next, kde s\u00fa zhroma\u017e\u010fovan\u00e9 zmeny na zaradenie do bud\u00faceho vydania jadra Linux 6.16, bola prijat\u00e1 zmena, ktor\u00e1 odstra\u0148uje podporu pre sie\u0165ov\u00fd protokol DCCP (Datagram Congestion Control 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\u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u043d\u0430\u043a\u0430\u043f\u043b\u0438\u0432\u0430\u044e\u0442\u0441\u044f \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u0434\u043b\u044f \u043f\u0435\u0440\u0435\u0434\u0430\u0447\u0438 \u0432 \u0441\u043e\u0441\u0442\u0430\u0432 \u0431\u0443\u0434\u0443\u0449\u0435\u0433\u043e \u0432\u044b\u043f\u0443\u0441\u043a\u0430 \u044f\u0434\u0440\u0430 Linux 6.16, \u043f\u0440\u0438\u043d\u044f\u0442\u043e \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0435, \u0443\u0434\u0430\u043b\u044f\u044e\u0449\u0435\u0435 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0443 \u0441\u0435\u0442\u0435\u0432\u043e\u0433\u043e \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430 DCCP (Datagram Congestion Control 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