{"id":16485,"date":"2026-01-02T18:21:21","date_gmt":"2026-01-02T17:21:21","guid":{"rendered":"https:\/\/webhosting.de\/tcp-congestion-control-auswirkungen-vergleich-latenz\/"},"modified":"2026-01-02T18:21:21","modified_gmt":"2026-01-02T17:21:21","slug":"tcp-%e8%bc%bb%e8%bc%b3%e5%88%b6%e5%be%a1%e3%81%ae%e5%bd%b1%e9%9f%bf%e3%81%ae%e6%af%94%e8%bc%83-%e3%83%ac%e3%82%a4%e3%83%86%e3%83%b3%e3%82%b7","status":"publish","type":"post","link":"https:\/\/webhosting.de\/ja\/tcp-congestion-control-auswirkungen-vergleich-latenz\/","title":{"rendered":"TCP \u8f3b\u8f33\u5236\u5fa1\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\uff1a\u5f71\u97ff\u306e\u6bd4\u8f03"},"content":{"rendered":"<p>TCP \u8f3b\u8f33\u5236\u5fa1\u306f\u3001\u5909\u5316\u3059\u308b\u63a5\u7d9a\u3092\u3069\u306e\u3088\u3046\u306b\u6c7a\u5b9a\u3059\u308b\u304b\u3092\u6c7a\u5b9a\u3057\u307e\u3059\u3002 <strong>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8ca0\u8377<\/strong> \u30c7\u30fc\u30bf\u30ec\u30fc\u30c8\u3092\u8abf\u6574\u3057\u3001\u5b9f\u969b\u306e\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u8a2d\u5b9a\u3067\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u304c\u3069\u306e\u3088\u3046\u306b\u6a5f\u80fd\u3059\u308b\u304b\u3092\u691c\u8a3c\u3057\u307e\u3059\u3002\u3053\u306e\u6bd4\u8f03\u3067\u306f\u3001\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8\u3001\u9045\u5ef6\u3001\u516c\u5e73\u6027\u306b\u5bfe\u3059\u308b\u5177\u4f53\u7684\u306a\u5f71\u97ff\u3092\u793a\u3057\u307e\u3059\u3002 <strong>\u30a6\u30a7\u30d6\u30db\u30b9\u30c6\u30a3\u30f3\u30b0<\/strong>, \u3001\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u3001\u30af\u30e9\u30a6\u30c9\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u3002.<\/p>\n\n<h2>\u4e2d\u5fc3\u70b9<\/h2>\n\n<p>\u3053\u306e\u8a18\u4e8b\u3092\u52b9\u679c\u7684\u306b\u8aad\u3080\u305f\u3081\u306b\u3001\u91cd\u8981\u306a\u70b9\u3092\u7c21\u5358\u306b\u307e\u3068\u3081\u3066\u3001\u5f8c\u3067\u5168\u90e8\u3092\u6587\u8108\u3067\u8aac\u660e\u3057\u307e\u3059\u3002\u640d\u5931\u30d9\u30fc\u30b9\u306e\u624b\u6cd5\u3068\u30e2\u30c7\u30eb\u30d9\u30fc\u30b9\u306e\u624b\u6cd5\u306f\u3001\u53cd\u5fdc\u304c\u5927\u304d\u304f\u9055\u3046\u304b\u3089\u3001\u306f\u3063\u304d\u308a\u533a\u5225\u3057\u307e\u3059\u3002cwnd\u3001RTT\u3001\u30da\u30fc\u30b7\u30f3\u30b0\u304c\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3084 <strong>\u516c\u5e73\u6027<\/strong> \u6c7a\u5b9a\u3059\u308b\u3002\u6e2c\u5b9a\u7d50\u679c\u3092\u6574\u7406\u3057\u3066\u3001\u76f4\u611f\u3067\u5224\u65ad\u3057\u306a\u3044\u3088\u3046\u306b\u3057\u307e\u3059\u3002\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u3001\u30b3\u30f3\u30c6\u30ca\u3001\u30b0\u30ed\u30fc\u30d0\u30eb\u306b\u3064\u3044\u3066\u3001\u5b9f\u7528\u7684\u306a\u63a8\u5968\u4e8b\u9805\u3092\u307e\u3068\u3081\u3066\u7de0\u3081\u304f\u304f\u308a\u307e\u3059\u3002 <strong>\u30e6\u30fc\u30b6\u30fc<\/strong>.<\/p>\n\n<ul>\n  <li><strong>AIMD<\/strong> cwnd \u3092\u5236\u5fa1\u3057\u3001\u640d\u5931\u306b\u5bfe\u5fdc\u3057\u307e\u3059\u3002<\/li>\n  <li><strong>CUBIC<\/strong> \u5927\u304d\u306aRTT\u3067\u3082\u5b89\u5b9a\u3057\u305f\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u767a\u63ee<\/li>\n  <li><strong>\u30d6\u30fc\u30c8\u30ec\u30b3\u30fc\u30c9<\/strong> \u30e2\u30c7\u30eb\u3092\u6d3b\u7528\u3057\u3001\u30ad\u30e5\u30fc\u3068\u9045\u5ef6\u3092\u524a\u6e1b<\/li>\n  <li><strong>BIC<\/strong> \u30c9\u30ed\u30c3\u30d7\u3067\u30cd\u30c3\u30c8\u4e0a\u3067\u30dd\u30a4\u30f3\u30c8\u3092\u7372\u5f97<\/li>\n  <li><strong>\u30cf\u30a4\u30d6\u30e9<\/strong> \u9577\u3044\u56de\u7dda\uff08\u885b\u661f\uff09\u306e\u901f\u5ea6\u3092\u4e0a\u3052\u308b<\/li>\n<\/ul>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2026\/01\/tcp-algorithmen-serverraum-9182.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u8f3b\u8f33\u5236\u5fa1\u304c\u5236\u5fa1\u3059\u308b\u3082\u306e\uff1acwnd\u3001RTT\u3001\u640d\u5931\u4fe1\u53f7<\/h2>\n\n<p>\u57fa\u790e\u304b\u3089\u59cb\u3081\u307e\u3057\u3087\u3046\u3002\u57fa\u790e\u306f\u3001\u305d\u306e\u5f8c\u306e\u9078\u629e\u3059\u3079\u3066\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u304b\u3089\u3067\u3059\u3002\u8f3b\u8f33\u30a6\u30a3\u30f3\u30c9\u30a6 <strong>(cwnd)<\/strong> \u78ba\u8a8d\u306e\u306a\u3044\u30d0\u30a4\u30c8\u6570\u3092\u5236\u9650\u3057\u3001AIMD \u306f\u640d\u5931\u304c\u767a\u751f\u3059\u308b\u307e\u3067 cwnd \u3092\u6bb5\u968e\u7684\u306b\u62e1\u5927\u3057\u307e\u3059\u3002RTT \u306f\u3001\u78ba\u8a8d\u304c\u8fd4\u3063\u3066\u304f\u308b\u901f\u5ea6\u3068\u3001\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u304c\u3069\u308c\u3060\u3051\u7a4d\u6975\u7684\u306b\u62e1\u5927\u3067\u304d\u308b\u304b\u3092\u6c7a\u5b9a\u3057\u307e\u3059\u3002\u4ee5\u524d\u306f\u3001\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u3068\u30c8\u30ea\u30d7\u30eb\u91cd\u8907 ACK \u304b\u3089\u640d\u5931\u4fe1\u53f7\u304c\u767a\u751f\u3057\u3066\u3044\u307e\u3057\u305f\u304c\u3001\u73fe\u5728\u3067\u306f\u3001\u30ad\u30e5\u30fc\u306e\u6df1\u3055\u3001\u6700\u5c0f RTT\u3001\u6e2c\u5b9a\u3055\u308c\u305f\u30dc\u30c8\u30eb\u30cd\u30c3\u30af\u5e2f\u57df\u5e45\u3082\u8003\u616e\u3055\u308c\u307e\u3059\u3002 cwnd\u3001RTT\u3001\u304a\u3088\u3073\u640d\u5931\u306e\u89e3\u91c8\u3092\u7406\u89e3\u3059\u308c\u3070\u3001\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8\u3001\u9045\u5ef6\u3001\u304a\u3088\u3073 <strong>\u30b8\u30c3\u30bf\u30fc<\/strong> \u3059\u3050\u306b\u826f\u304f\u306a\u308b\u3002.<\/p>\n\n<h2>\u632f\u308a\u8fd4\u308a\uff1a\u30ea\u30ce\u3001\u30cb\u30e5\u30fc\u30ea\u30ce\u3001\u305d\u3057\u3066\u30d9\u30ac\u30b9\u306e\u65e5\u5e38<\/h2>\n\n<p>Reno \u306f\u3001\u958b\u59cb\u6642\u306b\u30b9\u30ed\u30fc\u30b9\u30bf\u30fc\u30c8\u3092\u4f7f\u7528\u3057\u3001\u305d\u306e\u5f8c\u76f4\u7dda\u7684\u306a\u5897\u52a0\u306b\u79fb\u884c\u3057\u307e\u3059\u304c\u3001\u640d\u5931\u304c\u767a\u751f\u3059\u308b\u3068\u30a6\u30a3\u30f3\u30c9\u30a6\u30b5\u30a4\u30ba\u3092\u5927\u5e45\u306b\u534a\u6e1b\u3055\u305b\u307e\u3059\u3002NewReno \u306f\u3001\u30a6\u30a3\u30f3\u30c9\u30a6\u3054\u3068\u306e\u8907\u6570\u306e\u640d\u5931\u3092\u3088\u308a\u52b9\u7387\u7684\u306b\u4fee\u5fa9\u3059\u308b\u305f\u3081\u3001\u30a8\u30e9\u30fc\u7387\u304c\u4e2d\u7a0b\u5ea6\u306e\u5834\u5408\u306b\u7279\u306b\u6709\u52b9\u3067\u3059\u3002 Vegas \u306f\u3001RTT \u3092\u901a\u3058\u3066\u4e88\u60f3\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8\u3068\u5b9f\u969b\u306e\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8\u3092\u6bd4\u8f03\u3057\u3001\u640d\u5931\u3092\u9632\u3050\u305f\u3081\u306b\u65e9\u671f\u306b\u6e1b\u901f\u3057\u307e\u3059\u3002\u3053\u306e\u614e\u91cd\u306a\u5bfe\u5fdc\u306b\u3088\u308a\u30ad\u30e5\u30fc\u306f\u5c0f\u3055\u304f\u306a\u308a\u307e\u3059\u304c\u3001\u640d\u5931\u30d9\u30fc\u30b9\u306e\u30d5\u30ed\u30fc\u304c\u4e26\u884c\u3057\u3066\u3088\u308a\u7a4d\u6975\u7684\u306b\u9001\u4fe1\u3059\u308b\u5834\u5408\u3001\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8\u304c\u4f4e\u4e0b\u3057\u307e\u3059\u3002\u8aac\u660e\u306e\u3064\u304b\u306a\u3044\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u3084\u91cd\u8907 ACK \u304c\u767a\u751f\u3057\u305f\u5834\u5408\u306f\u3001\u307e\u305a <a href=\"https:\/\/webhosting.de\/ja\/%e3%83%8d%e3%83%83%e3%83%88%e3%83%af%e3%83%bc%e3%82%af-%e3%83%91%e3%82%b1%e3%83%83%e3%83%88%e6%90%8d%e5%a4%b1-%e3%82%a6%e3%82%a7%e3%83%96%e3%82%b5%e3%82%a4%e3%83%88-%e9%80%9f%e5%ba%a6%e4%bd%8e\/\">\u30d1\u30b1\u30c3\u30c8\u640d\u5931\u306e\u5206\u6790<\/a> \u305d\u3057\u3066\u3001\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092 <strong>\u30c8\u30dd\u30ed\u30b8\u30fc<\/strong> \u9069\u5207\u306b\u9078\u629e\u3059\u308b\u3002.<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2026\/01\/tcp_algorithmen_besprechung_5632.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>High-BW-RTT\uff1aBIC \u3068 CUBIC \u306e\u6bd4\u8f03<\/h2>\n\n<p>BIC \u306f\u3001\u640d\u5931\u306e\u306a\u3044\u6700\u9ad8\u306e cwnd \u306b\u30d0\u30a4\u30ca\u30ea\u3067\u8fd1\u3065\u304d\u3001\u308f\u305a\u304b\u306a\u30a8\u30e9\u30fc\u304c\u3042\u3063\u3066\u3082\u305d\u306e\u30ec\u30fc\u30c8\u3092\u9a5a\u304f\u307b\u3069\u5b89\u5b9a\u306b\u4fdd\u3061\u307e\u3059\u3002\u4f4e\u30ec\u30a4\u30c6\u30f3\u30b7\u3067\u30c9\u30ed\u30c3\u30d7\u30ec\u30fc\u30c8\u304c 10^-4 \u7a0b\u5ea6\u306e\u30e9\u30dc\u3067\u306f\u3001BIC \u306f 8 Gbit\/s \u4ee5\u4e0a\u306e\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8\u5024\u3092\u9054\u6210\u3057\u307e\u3057\u305f\u304c\u3001\u5f93\u6765\u306e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306f\u5909\u52d5\u304c\u898b\u3089\u308c\u307e\u3057\u305f\u3002 CUBIC \u306f\u3001cwnd \u3092\u7acb\u65b9\u95a2\u6570\u3067\u5236\u5fa1\u3057\u3001\u9577\u3044 RTT \u3092\u3088\u308a\u6709\u52b9\u306b\u6d3b\u7528\u3059\u308b\u305f\u3081\u3001BIC \u306b\u4ee3\u308f\u3063\u3066\u6a19\u6e96\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3068\u306a\u308a\u307e\u3057\u305f\u3002\u3053\u306e\u66f2\u7dda\u306f\u3001\u640d\u5931\u30a4\u30d9\u30f3\u30c8\u767a\u751f\u5f8c\u3001\u6700\u521d\u306f\u7de9\u3084\u304b\u306b\u4e0a\u6607\u3057\u3001\u305d\u306e\u5f8c\u9855\u8457\u306b\u52a0\u901f\u3057\u3001\u6700\u7d42\u7684\u306a\u6700\u5927\u30ec\u30fc\u30c8\u4ed8\u8fd1\u3067\u518d\u3073\u7de9\u3084\u304b\u306b\u306a\u308a\u307e\u3059\u3002\u9577\u3044\u7d4c\u8def\u3092\u6301\u3064\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u306f\u3001CUBIC \u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u826f\u597d\u306a\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8\u3092\u7dad\u6301\u3057\u306a\u304c\u3089\u3001\u3088\u308a\u9ad8\u3044\u5229\u7528\u7387\u3092\u9054\u6210\u3067\u304d\u308b\u5834\u5408\u304c\u591a\u304f\u3042\u308a\u307e\u3059\u3002 <strong>\u8a08\u753b\u6027<\/strong> \u30ec\u30a4\u30c6\u30f3\u30b7\u30fc\u3002.<\/p>\n\n<h2>\u30e2\u30c7\u30eb\u30d9\u30fc\u30b9\uff1aBBR\u3001\u30da\u30fc\u30b7\u30f3\u30b0\u3001\u30d0\u30c3\u30d5\u30a1\u30d6\u30ed\u30fc\u30c8<\/h2>\n\n<p>BBR \u306f\u3001\u6700\u5c0f RTT \u3068\u6e2c\u5b9a\u3055\u308c\u305f\u30dc\u30c8\u30eb\u30cd\u30c3\u30af\u5e2f\u57df\u5e45\u306e\u30e2\u30c7\u30eb\u3092\u4f7f\u7528\u3057\u3001cwnd \u3092\u5e2f\u57df\u5e45\u9045\u5ef6\u7a4d\u306e\u7d04 2 \u500d\u306b\u8a2d\u5b9a\u3057\u3001\u30d1\u30b1\u30c3\u30c8\u3092\u5747\u7b49\u306b\u30da\u30fc\u30b9\u8abf\u6574\u3057\u307e\u3059\u3002\u3053\u306e\u6226\u7565\u306b\u3088\u308a\u3001\u30ad\u30e5\u30fc\u306e\u904e\u8ca0\u8377\u304c\u9632\u6b62\u3055\u308c\u3001\u308f\u305a\u304b\u306a\u640d\u5931\u304c\u767a\u751f\u3057\u305f\u5834\u5408\u3067\u3082\u9045\u5ef6\u304c\u77ed\u304f\u6291\u3048\u3089\u308c\u307e\u3059\u3002 \u7121\u7dda\u54c1\u8cea\u304c\u4e0d\u5b89\u5b9a\u306a\u8a2d\u5b9a\u3084\u6df7\u5408\u30d1\u30b9\u3067\u306f\u3001BBR \u306f\u30c9\u30ed\u30c3\u30d7\u3054\u3068\u306b\u53cd\u5c04\u7684\u306b\u53cd\u5fdc\u3057\u306a\u3044\u305f\u3081\u3001\u30b0\u30c3\u30c9\u30d7\u30c3\u30c8\u306f\u9ad8\u3044\u307e\u307e\u7dad\u6301\u3055\u308c\u307e\u3059\u3002\u30d0\u30fc\u30b8\u30e7\u30f3 1 \u306f\u975e\u5e38\u306b\u9ad8\u901f\u3067\u3059\u304c\u3001\u5c0f\u3055\u306a\u30d0\u30c3\u30d5\u30a1\u3067\u306f CUBIC \u3068\u7af6\u5408\u3057\u3001\u3084\u3084\u4e0d\u516c\u5e73\u306a\u5206\u914d\u3092\u793a\u3059\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u79c1\u306f BBR \u3092 <strong>BBR CUBIC \u30db\u30b9\u30c6\u30a3\u30f3\u30b0<\/strong> \u30d7\u30e9\u30a4\u30de\u30ea\u30d5\u30ed\u30fc\u306b\u306f\u30e9\u30f3\u30c9\u30b9\u30b1\u30fc\u30d7\u3092\u597d\u307f\u3001\u4e92\u63db\u6027\u306e\u3042\u308b\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u3068\u3057\u3066 CUBIC \u3092\u5b9f\u884c\u3057\u307e\u3059\u3002.<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2026\/01\/tcp-algorithmen-vergleich-9471.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u885b\u661f\u3068\u7121\u7dda\uff1aHybla\u3001Westwood\u3001PCC<\/h2>\n\n<p>Hybla \u306f\u3001\u77ed\u3044\u57fa\u6e96 RTT \u304c\u3042\u308b\u304b\u306e\u3088\u3046\u306b cwnd \u3092\u30b9\u30b1\u30fc\u30ea\u30f3\u30b0\u3059\u308b\u3053\u3068\u3067\u3001\u9ad8\u3044 RTT \u306e\u6b20\u70b9\u3092\u88dc\u3044\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u885b\u661f\u306a\u3069\u306e\u9577\u8ddd\u96e2\u901a\u4fe1\u306f\u3001\u3088\u308a\u8fc5\u901f\u306b\u5229\u7528\u53ef\u80fd\u306a\u901f\u5ea6\u306b\u4e0a\u6607\u3057\u3001\u305d\u306e\u901f\u5ea6\u3092\u78ba\u5b9f\u306b\u7dad\u6301\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002 Westwood \u306f\u3001ACK \u30ec\u30fc\u30c8\u304b\u3089\u5229\u7528\u53ef\u80fd\u306a\u5e2f\u57df\u5e45\u3092\u63a8\u5b9a\u3057\u3001\u640d\u5931\u5f8c\u306e cwnd \u306e\u524a\u6e1b\u5e45\u3092\u5c0f\u3055\u304f\u3059\u308b\u3053\u3068\u3067\u3001\u30e9\u30f3\u30c0\u30e0\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3059\u308b\u7121\u7dda\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u52b9\u679c\u3092\u767a\u63ee\u3057\u307e\u3059\u3002PCC \u306f\u3055\u3089\u306b\u4e00\u6b69\u9032\u3093\u3067\u3001\u77ed\u3044\u5b9f\u9a13\u3092\u901a\u3058\u3066\u52b9\u7528\u5024\u3092\u6700\u9069\u5316\u3057\u3001\u9ad8\u3044\u30b0\u30c3\u30c9\u30d7\u30c3\u30c8\u3068\u30ec\u30a4\u30c6\u30f3\u30b7\u306e\u7d44\u307f\u5408\u308f\u305b\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002\u7570\u7a2e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u306f <strong>\u30e2\u30d3\u30ea\u30c6\u30a3<\/strong> \u8907\u96d1\u306a QoS \u30eb\u30fc\u30eb\u306b\u53d6\u308a\u7d44\u3080\u524d\u306b\u3001Hybla \u3068 Westwood \u3092\u512a\u5148\u7684\u306b\u30c6\u30b9\u30c8\u3057\u307e\u3059\u3002.<\/p>\n\n<h2>\u6027\u80fd\u6bd4\u8f03\uff1a\u6e2c\u5b9a\u5024\u3068\u516c\u5e73\u6027<\/h2>\n\n<p>\u6bd4\u8f03\u3059\u308b\u3068\u3001\u30ec\u30a4\u30c6\u30f3\u30b7\u3068\u30a8\u30e9\u30fc\u7387\u304c\u7570\u306a\u308b\u5834\u5408\u3001\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u304c\u5927\u304d\u304f\u7570\u306a\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002RTT \u304c\u4f4e\u3044\u5834\u5408\u3001BIC \u306f\u7d14\u7c8b\u306a\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8\u7af6\u4e89\u3067\u3057\u3070\u3057\u3070\u512a\u4f4d\u306b\u7acb\u3061\u3001CUBIC \u306f\u6642\u9593\u7d4c\u904e\u306b\u4f34\u3046\u30ec\u30fc\u30c8\u3068\u52d5\u4f5c\u306e\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u7d44\u307f\u5408\u308f\u305b\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002 RTT \u304c\u975e\u5e38\u306b\u9577\u3044\u5834\u5408\u3001CUBIC \u306f\u5f85\u6a5f\u6642\u9593\u3092\u6210\u9577\u306b\u3046\u307e\u304f\u5909\u63db\u3059\u308b\u305f\u3081\u3001Reno \u3084 NewReno \u3088\u308a\u3082\u660e\u3089\u304b\u306b\u512a\u308c\u3066\u3044\u307e\u3059\u3002BBR \u306f\u30ad\u30e5\u30fc\u3092\u7a7a\u306b\u4fdd\u3061\u3001\u5e38\u306b\u4f4e\u3044\u9045\u5ef6\u3092\u5b9f\u73fe\u3057\u307e\u3059\u304c\u3001\u30d0\u30c3\u30d5\u30a1\u30b5\u30a4\u30ba\u306b\u5fdc\u3058\u3066\u518d\u9001\u4fe1\u304c\u5897\u3048\u307e\u3059\u3002\u4e26\u5217\u30d5\u30ed\u30fc\u306e\u5834\u5408\u3001CUBIC \u306f\u901a\u5e38\u3001\u516c\u5e73\u306a\u5206\u5272\u3092\u793a\u3057\u3001BIC \u306f\u56de\u7dda\u3092 <strong>\u5b9a\u54e1<\/strong>.<\/p>\n\n<table>\n  <thead>\n    <tr>\n      <th>\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0<\/th>\n      <th>\u539f\u5247<\/th>\n      <th>\u5f37\u3055<\/th>\n      <th>\u5f31\u3055<\/th>\n      <th>\u3053\u3093\u306a\u4eba\u306b\u304a\u3059\u3059\u3081<\/th>\n    <\/tr>\n  <\/thead>\n  <tbody>\n    <tr>\n      <td>\u30ea\u30ce \/ \u30cb\u30e5\u30fc\u30ea\u30ce<\/td>\n      <td>\u640d\u5931\u30d9\u30fc\u30b9\u3001AIMD<\/td>\n      <td>\u5358\u7d14\u306a\u884c\u52d5<\/td>\n      <td>\u9ad8\u3044RTT\u3067\u306f\u4f4e\u901f<\/td>\n      <td>\u30ec\u30ac\u30b7\u30fc\u30b9\u30bf\u30c3\u30af\u3001, <strong>\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0<\/strong><\/td>\n    <\/tr>\n    <tr>\n      <td>\u30d9\u30ac\u30b9<\/td>\n      <td>RTT\u30d9\u30fc\u30b9<\/td>\n      <td>\u65e9\u671f\u306e\u6e0b\u6ede\u56de\u907f<\/td>\n      <td>\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8\u306e\u4f4e\u4e0b<\/td>\n      <td>\u5b9a\u5e38\u7684\u306a\u30ec\u30a4\u30c6\u30f3\u30b7\u30fc<\/td>\n    <\/tr>\n    <tr>\n      <td>BIC<\/td>\n      <td>\u30d0\u30a4\u30ca\u30ea\u691c\u7d22<\/td>\n      <td>\u30c9\u30ed\u30c3\u30d7\u6642\u306e\u9ad8\u3044\u30b0\u30c3\u30c9\u30d7\u30c3\u30c8<\/td>\n      <td>\u4ed6\u8005\u306b\u5bfe\u3057\u3066\u653b\u6483\u7684<\/td>\n      <td>\u4f4e\u3044RTT\u3001\u30a8\u30e9\u30fc\u7387<\/td>\n    <\/tr>\n    <tr>\n      <td>CUBIC<\/td>\n      <td>\u7acb\u65b9\u6642\u9593\u95a2\u6570<\/td>\n      <td>\u516c\u6b63\u3055<\/td>\n      <td>\u30c9\u30ed\u30c3\u30d7\u306e\u3070\u3089\u3064\u304d<\/td>\n      <td>\u9577\u3044\u9053\u3001\u30c7\u30fc\u30bf\u30bb\u30f3\u30bf\u30fc<\/td>\n    <\/tr>\n    <tr>\n      <td>\u30d6\u30fc\u30c8\u30ec\u30b3\u30fc\u30c9<\/td>\n      <td>\u30e2\u30c7\u30eb\u30d9\u30fc\u30b9\u3001\u30da\u30fc\u30b7\u30f3\u30b0<\/td>\n      <td>\u4f4e\u9045\u5ef6<\/td>\n      <td>\u5c0f\u3055\u306a\u30d0\u30c3\u30d5\u30a1\u3067\u306f\u4e0d\u516c\u5e73<\/td>\n      <td>\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u3001\u30b0\u30ed\u30fc\u30d0\u30eb\u30e6\u30fc\u30b6\u30fc<\/td>\n    <\/tr>\n    <tr>\n      <td>\u30cf\u30a4\u30d6\u30e9<\/td>\n      <td>RTT\u88dc\u511f<\/td>\n      <td>\u8fc5\u901f\u306a\u7acb\u3061\u4e0a\u3052<\/td>\n      <td>\u7279\u6b8a\u306a\u30b1\u30fc\u30b9\u306e\u6027\u8cea<\/td>\n      <td>\u885b\u661f\u3001, <strong>\u6d77\u4e8b<\/strong><\/td>\n    <\/tr>\n  <\/tbody>\n<\/table>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2026\/01\/tcp_algorithmen_vergleich_4923.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u5b9f\u8df5\u30ac\u30a4\u30c9\uff1a\u30ec\u30a4\u30c6\u30f3\u30b7\u3001\u640d\u5931\u3001\u76ee\u6a19\u306b\u3088\u308b\u9078\u629e<\/h2>\n\n<p>\u79c1\u306f\u3001\u4f4e\u30ec\u30a4\u30c6\u30f3\u30b7\u3001\u6700\u5927\u30b0\u30c3\u30c9\u30d7\u30c3\u30c8\u3001\u307e\u305f\u306f\u591a\u6570\u306e\u30d5\u30ed\u30fc\u306e\u30d0\u30e9\u30f3\u30b9\u3068\u3044\u3046\u660e\u78ba\u306a\u76ee\u6a19\u3092\u63b2\u3052\u3066\u3001\u3042\u3089\u3086\u308b\u6c7a\u5b9a\u3092\u958b\u59cb\u3057\u307e\u3059\u3002\u30d0\u30c3\u30d5\u30a1\u30b5\u30a4\u30ba\u306b\u53b3\u3057\u3044\u5236\u9650\u304c\u3042\u308a\u3001\u30ec\u30a4\u30c6\u30f3\u30b7\u306e\u8981\u4ef6\u304c\u53b3\u3057\u3044\u5834\u5408\u306f\u3001\u307e\u305a BBR \u3092\u63a1\u7528\u3057\u307e\u3059\u3002\u9577\u3044\u30d1\u30b9\u304c\u4e3b\u6d41\u3067\u3001\u8907\u6570\u306e\u30db\u30b9\u30c8\u304c\u5171\u5b58\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001CUBIC \u4ee5\u5916\u306b\u306f\u9078\u629e\u80a2\u304c\u3042\u308a\u307e\u305b\u3093\u3002 \u30c9\u30ed\u30c3\u30d7\u30d1\u30bf\u30fc\u30f3\u304c\u660e\u78ba\u306b\u89b3\u5bdf\u3067\u304d\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u306f\u3001\u516c\u5e73\u6027\u304c\u4e8c\u6b21\u7684\u306a\u554f\u984c\u3067\u3042\u308b\u9650\u308a\u3001BIC \u306f\u5f15\u304d\u7d9a\u304d\u5370\u8c61\u7684\u306a\u30ec\u30fc\u30c8\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002\u885b\u661f\u304a\u3088\u3073\u975e\u5e38\u306b\u9ad8\u3044 RTT \u30d1\u30b9\u30b3\u30b9\u30c8\u306e\u5834\u5408\u3001Hybla \u306f\u5178\u578b\u7684\u306a\u30e9\u30f3\u30d7\u30a2\u30c3\u30d7\u306e\u6b20\u70b9\u3092\u89e3\u6d88\u3057\u3001\u9ad8\u901f\u306a <strong>\u30da\u30a4\u30ed\u30fc\u30c9<\/strong>.<\/p>\n\n<h2>Linux\u3001Windows\u3001\u30b3\u30f3\u30c6\u30ca\uff1a\u30a2\u30af\u30c6\u30a3\u30d9\u30fc\u30b7\u30e7\u30f3\u3068\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0<\/h2>\n\n<p>Linux \u3067\u306f\u3001sysctl net.ipv4.tcp_congestion_control \u3092\u4f7f\u7528\u3057\u3066\u30a2\u30af\u30c6\u30a3\u30d6\u306a\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u78ba\u8a8d\u3057\u3001sysctl net.ipv4.tcp_congestion_control=bbr \u3092\u4f7f\u7528\u3057\u3066\u610f\u56f3\u7684\u306b\u8a2d\u5b9a\u3057\u307e\u3059\u3002CUBIC \u306e\u5834\u5408\u3001\u30ab\u30fc\u30cd\u30eb\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u8a2d\u5b9a\u306b\u6ce8\u610f\u3057\u307e\u3059\u304c\u3001\u30db\u30b9\u30c8\u30ad\u30e5\u30fc\u3092\u7de9\u548c\u3059\u308b\u5834\u5408\u306f net.core.default_qdisc \u304a\u3088\u3073\u30da\u30fc\u30b7\u30f3\u30b0\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u8abf\u6574\u3057\u307e\u3059\u3002 \u30b3\u30f3\u30c6\u30ca\u3067\u306f\u3001\u30cd\u30fc\u30e0\u30b9\u30da\u30fc\u30b9\u304c\u3059\u3079\u3066\u306e\u30ad\u30e5\u30fc\u3092\u5206\u96e2\u3059\u308b\u308f\u3051\u3067\u306f\u306a\u3044\u305f\u3081\u3001\u8a2d\u5b9a\u3092\u30db\u30b9\u30c8\u306b\u8ee2\u9001\u3057\u307e\u3059\u3002Windows \u306e\u6700\u65b0\u30d0\u30fc\u30b8\u30e7\u30f3\u3067\u306f\u3001\u9069\u5207\u306a\u30a8\u30c7\u30a3\u30b7\u30e7\u30f3\u3067 BBR \u3092\u6709\u52b9\u306b\u3067\u304d\u307e\u3059\u304c\u3001\u53e4\u3044\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u5f15\u304d\u7d9a\u304d CUBIC \u307e\u305f\u306f Compound \u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u5805\u7262\u306a\u30b7\u30b9\u30c6\u30e0\u3068 <strong>\u30ad\u30e5\u30fc<\/strong>\u8a2d\u5b9a\u3092\u5909\u66f4\u3059\u308b\u3068\u3001\u3069\u306e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3082\u52b9\u679c\u304c\u8457\u3057\u304f\u4f4e\u4e0b\u3057\u307e\u3059\u3002.<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2026\/01\/tcp_control_workspace_4821.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u30a6\u30a7\u30d6\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u306e\u5c55\u671b\uff1a\u30de\u30eb\u30c1\u30d5\u30ed\u30fc\u306e\u516c\u5e73\u6027\u3068\u30b0\u30c3\u30c9\u30d7\u30c3\u30c8<\/h2>\n\n<p>\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u30af\u30e9\u30b9\u30bf\u3067\u306f\u3001\u5358\u4e00\u306e\u8ee2\u9001\u306e\u6700\u9ad8\u5024\u3067\u306f\u306a\u304f\u3001\u591a\u6570\u306e\u540c\u6642\u30d5\u30ed\u30fc\u306e\u5408\u8a08\u304c\u91cd\u8981\u3067\u3059\u3002CUBIC \u306f\u63a5\u7d9a\u3092\u4e88\u6e2c\u53ef\u80fd\u306b\u3057\u3001\u307b\u3068\u3093\u3069\u306e\u5834\u5408\u3001\u5bb9\u91cf\u3092\u516c\u5e73\u306b\u5206\u914d\u3059\u308b\u305f\u3081\u3001\u9ad8\u5bc6\u5ea6\u306e\u30de\u30eb\u30c1\u30c6\u30ca\u30f3\u30c8\u30b7\u30ca\u30ea\u30aa\u306b\u6709\u5229\u3067\u3059\u3002BBR \u306f\u30ad\u30e5\u30fc\u3092\u524a\u6e1b\u3057\u3001API \u3084\u52d5\u7684 Web \u30b5\u30a4\u30c8\u306e\u5fdc\u7b54\u6642\u9593\u3092\u77ed\u7e2e\u3057\u307e\u3059\u3002 \u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u3092\u8003\u616e\u3059\u308b\u5834\u5408\u306f\u3001HTTP \u30d0\u30fc\u30b8\u30e7\u30f3\u3067\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u3092\u30c6\u30b9\u30c8\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u79c1\u306e\u51fa\u767a\u70b9\u306f <a href=\"https:\/\/webhosting.de\/ja\/http3-%e5%af%be-http2-webhosting-%e3%83%91%e3%83%95%e3%82%a9%e3%83%bc%e3%83%9e%e3%83%b3%e3%82%b9%e3%83%81%e3%82%a7%e3%83%83%e3%82%af-topserver\/\">HTTP\/3\u3068HTTP\/2\u306e\u6bd4\u8f03<\/a> \u9078\u629e\u3057\u305fCC\u65b9\u5f0f\u3068\u306e\u76f8\u4e92\u4f5c\u7528\u306b\u304a\u3044\u3066\u3002\u30b0\u30ed\u30fc\u30d0\u30eb\u30e6\u30fc\u30b6\u30fc\u306b\u3068\u3063\u3066\u306f\u3001\u53cd\u5fdc\u6642\u9593\u304c\u77e5\u899a\u306b\u76f4\u63a5\u5f71\u97ff\u3059\u308b\u305f\u3081\u3001\u4f4e\u30ec\u30a4\u30c6\u30f3\u30b7\u306e\u30d4\u30fc\u30af\u3092\u597d\u307f\u307e\u3059\u3002 <strong>\u30b9\u30d4\u30fc\u30c9<\/strong> \u7279\u5fb4\u3065\u3051\u3089\u308c\u308b\u3002.<\/p>\n\n<h2>QUIC \u3068 BBR\uff1aTCP \u3092\u8d85\u3048\u305f\u5f71\u97ff\u529b<\/h2>\n\n<p>QUIC \u306f\u3001UDP \u30d9\u30fc\u30b9\u72ec\u81ea\u306e\u8f3b\u8f33\u5236\u5fa1\u6a5f\u80fd\u3092\u5099\u3048\u3001BBR \u3068\u540c\u69d8\u306e\u539f\u5247\u3001\u305f\u3068\u3048\u3070\u30da\u30fc\u30b7\u30f3\u30b0\u3084 RTT \u76e3\u8996\u306a\u3069\u3092\u5229\u7528\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u6700\u65b0\u306e\u30b9\u30bf\u30c3\u30af\u3067\u306f\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c TCP \u304b\u3089\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5c64\u3078\u3068\u5f90\u3005\u306b\u79fb\u884c\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u81ea\u7531\u5ea6\u306f\u9ad8\u307e\u308a\u307e\u3059\u304c\u3001\u30d1\u30b9\u3001\u30db\u30b9\u30c8\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30ec\u30d9\u30eb\u3067\u306e\u6b63\u78ba\u306a\u6e2c\u5b9a\u304c\u5fc5\u8981\u3068\u306a\u308a\u307e\u3059\u3002\u8a08\u753b\u3092\u7acb\u3066\u308b\u969b\u306b\u306f\u3001\u4ee5\u4e0b\u3092\u304a\u52e7\u3081\u3057\u307e\u3059\u3002 <a href=\"https:\/\/webhosting.de\/ja\/%e3%82%af%e3%82%a4%e3%83%83%e3%82%af%e3%83%bb%e3%83%97%e3%83%ad%e3%83%88%e3%82%b3%e3%83%ab%e9%9d%a9%e5%91%bd-%e3%82%a6%e3%82%a7%e3%83%96%e9%80%9a%e4%bf%a1\/\">QUIC\u30d7\u30ed\u30c8\u30b3\u30eb<\/a> \u5b9f\u969b\u306e\u8ca0\u8377\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u3067 CUBIC\/BBR\u2011TCP \u3068\u6bd4\u8f03\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30ad\u30e5\u30fc\u306e\u5f62\u6210\u304c\u767a\u751f\u3057\u3066\u3044\u308b\u5834\u6240\u3084\u3001\u30da\u30fc\u30b7\u30f3\u30b0\u3084 <strong>\u30b7\u30a7\u30fc\u30d4\u30f3\u30b0<\/strong> \u6ed1\u3089\u304b\u3055\u3002.<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2026\/01\/tcp-vergleich-serverraum-8362.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>AQM\u3001ECN\u3001\u30d0\u30c3\u30d5\u30a1\u898f\u5f8b\uff1a\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3068\u306e\u76f8\u4e92\u4f5c\u7528<\/h2>\n\n<p>\u30b9\u30bf\u30c3\u30af\u5236\u5fa1\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30c7\u30d0\u30a4\u30b9\u306e\u30ad\u30e5\u30fc\u7ba1\u7406\u3068\u9023\u52d5\u3059\u308b\u3053\u3068\u3067\u3001\u305d\u306e\u52b9\u679c\u3092\u6700\u5927\u9650\u306b\u767a\u63ee\u3057\u307e\u3059\u3002\u5f93\u6765\u306e\u30c6\u30fc\u30eb\u30c9\u30ed\u30c3\u30d7\u306f\u3001\u30d0\u30c3\u30d5\u30a1\u3092\u3044\u3063\u3071\u3044\u306b\u6e80\u305f\u3057\u3066\u304b\u3089\u30d1\u30b1\u30c3\u30c8\u3092\u7a81\u7136\u7834\u68c4\u3059\u308b\u305f\u3081\u3001\u30ec\u30a4\u30c6\u30f3\u30b7\u306e\u30d4\u30fc\u30af\u3084\u540c\u671f\u52b9\u679c\u304c\u751f\u3058\u307e\u3059\u3002 CoDel \u3084 FQ\u2011CoDel \u306a\u3069\u306e\u30a2\u30af\u30c6\u30a3\u30d6\u30ad\u30e5\u30fc\u7ba1\u7406 (AQM) \u306f\u3001\u30d1\u30b1\u30c3\u30c8\u3092\u65e9\u671f\u306b\u30de\u30fc\u30af\u307e\u305f\u306f\u7834\u68c4\u3057\u3001\u30d5\u30ed\u30fc\u9593\u3067\u5bb9\u91cf\u3092\u3088\u308a\u516c\u5e73\u306b\u5206\u914d\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u3059\u3079\u3066\u306e\u30d7\u30ed\u30bb\u30b9\u306b\u30e1\u30ea\u30c3\u30c8\u304c\u3042\u308a\u307e\u3059\u3002CUBIC \u306f\u30d0\u30fc\u30b9\u30c8\u30c9\u30ed\u30c3\u30d7\u306b\u3088\u308b cwnd \u306e\u640d\u5931\u304c\u5c11\u306a\u304f\u306a\u308a\u3001BBR \u306f\u305d\u306e <strong>\u30da\u30fc\u30b9\u8a2d\u5b9a<\/strong>\u30ad\u30e5\u30fc\u304c\u300c\u7206\u767a\u300d\u3057\u306a\u3044\u305f\u3081\u3001\u6226\u7565\u304c\u3088\u308a\u5b89\u5b9a\u3059\u308b\u3002.<\/p>\n\n<p>ECN\uff08Explicit Congestion Notification\uff09\u304c\u3053\u306e\u72b6\u6cc1\u3092\u88dc\u5b8c\u3057\u307e\u3059\u3002\u30d1\u30b1\u30c3\u30c8\u3092\u5ec3\u68c4\u3059\u308b\u4ee3\u308f\u308a\u306b\u3001\u30eb\u30fc\u30bf\u30fc\u306f CE \u30d3\u30c3\u30c8\u3067\u8f3b\u8f33\u3092\u30de\u30fc\u30af\u3057\u3001\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u306f\u518d\u9001\u4fe1\u3092\u5fc5\u8981\u3068\u305b\u305a\u306b\u30b9\u30ed\u30c3\u30c8\u30ea\u30f3\u30b0\u3092\u884c\u3044\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u640d\u5931\u30d9\u30fc\u30b9\u306e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306f\u3088\u308a\u65e9\u304f\u3001\u3088\u308a\u7a4f\u3084\u304b\u306b\u53cd\u5fdc\u3057\u3001BBR \u306a\u3069\u306e\u30e2\u30c7\u30eb\u30d9\u30fc\u30b9\u306e\u624b\u6cd5\u306f\u3001\u6700\u5c0f RTT \u306e\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u3067\u4fe1\u53f7\u3092\u89e3\u91c8\u3057\u307e\u3059\u3002 \u30c7\u30fc\u30bf\u30bb\u30f3\u30bf\u30fc\u3067\u306f\u3001\u4e00\u8cab\u3057\u305f ECN \u306b\u3088\u308b DCTCP \u306b\u3088\u308a\u3001\u9ad8\u8ca0\u8377\u6642\u3067\u3082\u975e\u5e38\u306b\u4f4e\u3044\u30ad\u30e5\u30fc\u30a4\u30f3\u30b0\u9045\u5ef6\u3092\u5b9f\u73fe\u3057\u3066\u3044\u307e\u3059\u3002WAN \u3067\u306f\u3001ECN \u3092\u9078\u629e\u7684\u306b\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u30d1\u30b9\u304c\u30de\u30fc\u30af\u3092\u4e00\u8cab\u3057\u3066\u901a\u904e\u3057\u3001\u30df\u30c9\u30eb\u30dc\u30c3\u30af\u30b9\u304c\u4ecb\u5165\u3057\u306a\u3044\u5834\u5408\u306b\u306e\u307f\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002\u6df7\u5408\u30d1\u30d6\u30ea\u30c3\u30af\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u306f\u3001\u30d0\u30c3\u30d5\u30a1\u3092\u5358\u306b\u62e1\u5927\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001AQM \u3092\u9069\u5207\u306b\u69cb\u6210\u3059\u308b\u3053\u3068\u304c\u4f9d\u7136\u3068\u3057\u3066\u91cd\u8981\u3067\u3059\u3002.<\/p>\n\n<h2>\u30d0\u30fc\u30b9\u30c8\u3001\u30aa\u30d5\u30ed\u30fc\u30c9\u3001\u30db\u30b9\u30c8\u5074\u306e\u30da\u30fc\u30b7\u30f3\u30b0<\/h2>\n\n<p>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u4f4e\u4e0b\u306f\u3001\u30db\u30b9\u30c8\u3067\u306e\u9001\u4fe1\u30d0\u30fc\u30b9\u30c8\u306b\u3088\u3063\u3066\u767a\u751f\u3059\u308b\u3053\u3068\u304c\u591a\u3044\u3002\u5927\u898f\u6a21\u306a\u30aa\u30d5\u30ed\u30fc\u30c9\uff08TSO\/GSO\uff09\u306f\u3001\u30bb\u30b0\u30e1\u30f3\u30c8\u3092\u975e\u5e38\u306b\u5927\u304d\u306a\u30d5\u30ec\u30fc\u30e0\u306b\u307e\u3068\u3081\u307e\u3059\u3002 <strong>\u30da\u30fc\u30b9\u8a2d\u5b9a<\/strong> \u3053\u308c\u3089\u306e\u30d1\u30b1\u30c3\u30c8\u306f\u77ed\u3044\u30d4\u30fc\u30af\u3067\u653e\u51fa\u3055\u308c\u3001\u30b9\u30a4\u30c3\u30c1\u30ad\u30e5\u30fc\u3092\u57cb\u3081\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001Linux \u3067\u306f\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u306e qdisc \u3068\u3057\u3066 sch_fq \u307e\u305f\u306f FQ\u2011CoDel \u3092\u8a2d\u5b9a\u3057\u3001CC \u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u304c\u6307\u5b9a\u3059\u308b\u30da\u30fc\u30b7\u30f3\u30b0\u30ec\u30fc\u30c8\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002BBR \u306f\u7279\u306b\u3053\u306e\u6069\u6075\u3092\u53d7\u3051\u3066\u3044\u307e\u3059\u304c\u3001CUBIC \u3082\u5b89\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002 NIC \u30ea\u30f3\u30b0\u30d0\u30c3\u30d5\u30a1\u304c\u5927\u304d\u3059\u304e\u305f\u308a\u3001txqueuelen \u304c\u9ad8\u3059\u304e\u305f\u308a\u3059\u308b\u3068\u3001\u30db\u30b9\u30c8\u306e\u30ad\u30e5\u30fc\u304c\u9577\u304f\u306a\u308a\u307e\u3059\u3002\u79c1\u306f\u9069\u5ea6\u306a\u5024\u3092\u9078\u629e\u3057\u3001tc -s qdisc \u3092\u4f7f\u7528\u3057\u3066\u3001\u30c9\u30ed\u30c3\u30d7\u3084 ECN \u30de\u30fc\u30af\u304c\u767a\u751f\u3057\u3066\u3044\u306a\u3044\u304b\u3092\u76e3\u8996\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n<p>\u53d7\u4fe1\u5074\u3067\u306f\u3001GRO\/LRO \u304c\u5c0f\u3055\u306a\u30d5\u30ed\u30fc\u306e\u30ec\u30a4\u30c6\u30f3\u30b7\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u3059\u3002API \u3092\u591a\u7528\u3059\u308b\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u3067\u306f\u3001NIC \u3084\u30ab\u30fc\u30cd\u30eb\u306b\u5fdc\u3058\u3066\u3053\u308c\u3089\u306e\u30aa\u30d5\u30ed\u30fc\u30c9\u3092\u30c6\u30b9\u30c8\u307e\u305f\u306f\u6291\u5236\u3057\u3001ACK 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