{"id":816,"date":"2019-11-29T19:38:31","date_gmt":"2019-11-29T10:38:31","guid":{"rendered":"https:\/\/www.seraku.co.jp\/tectec-note\/?p=816"},"modified":"2024-07-08T17:50:54","modified_gmt":"2024-07-08T08:50:54","slug":"osi-reference-model","status":"publish","type":"post","link":"https:\/\/www.seraku.co.jp\/tectec-note\/industry\/osi-reference-model\/","title":{"rendered":"OSI\u53c2\u7167\u30e2\u30c7\u30eb\u3092\u5fb9\u5e95\u89e3\u8aac\uff01TCP\/IP\u3068\u306e\u9055\u3044\u3063\u3066\uff1f"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\u306f\u3058\u3081\u306b<\/h2>\n\n\n\n<div 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class=\"wp-block-heading\">OSI\u53c2\u7167\u30e2\u30c7\u30eb\u3068\u306f<\/h2>\n\n\n\n<p>\u300cOSI\uff08Open System Interconnection\uff09\u53c2\u7167\u30e2\u30c7\u30eb\u300d\u3068\u306f\u3001\u56fd\u969b\u6a19\u6e96\u5316\u6a5f\u69cb\uff08ISO\uff09\u3068\u3044\u3046\u7d44\u7e54\u304c<strong>\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u306a\u3069\u3067\u884c\u3046\u901a\u4fe1\u65b9\u6cd5\u3092\u7d71\u4e00\u3059\u308b\u305f\u3081\u306b\u7b56\u5b9a\u3057\u305f\u898f\u683c<\/strong>\u306e\u3053\u3068\u3067\u3059\u3002\u306a\u305c\u3001\u7d71\u4e00\u3059\u308b\u5fc5\u8981\u304c\u3042\u3063\u305f\u306e\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n\n\n\n<p>\u305f\u3068\u3048\u3070\u3001\u6d77\u5916\u306b\u65c5\u884c\u3078\u884c\u3063\u305f\u3089\u81ea\u56fd\u3068\u306f\u9055\u3063\u305f\u8a00\u8449\u3084\u98a8\u7fd2\u306a\u3069\u306e\u30eb\u30fc\u30eb\u304c\u3042\u3063\u3066\u3001\u6238\u60d1\u3046\u7d4c\u9a13\u3092\u3055\u308c\u305f\u65b9\u3082\u4e2d\u306b\u306f\u3044\u3089\u3063\u3057\u3083\u308b\u3067\u3057\u3087\u3046\u3002\u3057\u304b\u3057\u3001\u7d71\u4e00\u3055\u308c\u305f\u30eb\u30fc\u30eb\u304c\u3042\u308a\u305d\u308c\u3092\u77e5\u3063\u3066\u3044\u308c\u3070\u554f\u984c\u306a\u304f\u3084\u308a\u53d6\u308a\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u3068\u540c\u3058\u3067\u3001\u305f\u3068\u3048\u3070\u3001\u901a\u4fe1\u3092\u884c\u3046\u305f\u3081\u306b\u5fc5\u8981\u306a\u6a5f\u5668\u3084\u88fd\u54c1\u3092\u624b\u639b\u3051\u308b\u30d9\u30f3\u30c0\u30fc\uff08\u30e1\u30fc\u30ab\u30fc\uff09\u304c\u3044\u305f\u3068\u3057\u307e\u3057\u3087\u3046\u3002\u4f01\u696d\u3054\u3068\u306b\u305d\u308c\u305e\u308c\u72ec\u81ea\u306e\u901a\u4fe1\u30eb\u30fc\u30eb\u3067\u6a5f\u5668\u3084\u88fd\u54c1\u3092\u8ca9\u58f2\u3057\u5229\u7528\u3057\u3066\u3044\u305f\u3089\u3001\u7570\u306a\u308b\u30d9\u30f3\u30c0\u30fc\uff08\u30e1\u30fc\u30ab\u30fc\uff09\u9593\u306e\u6a5f\u5668\u3084\u88fd\u54c1\u3067\u306f\u901a\u4fe1\u304c\u3046\u307e\u304f\u3084\u308a\u53d6\u308a\u3067\u304d\u307e\u305b\u3093\u3002\u3053\u306e\u305f\u3081\u3001\u5171\u901a\u3057\u305f\u901a\u4fe1\u898f\u683c\u304c\u5fc5\u8981\u3067\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u6d41\u308c\u306b\u3088\u308a\u3001\u56fd\u969b\u6a19\u6e96\u5316\u6a5f\u69cb\uff08ISO\uff09\u3068\u3044\u3046\u7d44\u7e54\u304c\u300c\u901a\u4fe1\u3092\u304a\u3053\u306a\u3046\u969b\u306f\u3053\u306e\u30e2\u30c7\u30eb\u3067\u3084\u308a\u53d6\u308a\u3092\u3057\u307e\u3057\u3087\u3046\u300d\u3068\u898f\u683c\u3092\u4f5c\u308b\u306b\u81f3\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">OSI\u53c2\u7167\u30e2\u30c7\u30eb\u306e\u968e\u5c64<\/h2>\n\n\n\n<p>\u30eb\u30fc\u30eb\u3065\u304f\u308a\u306e\u305f\u3081\u5206\u3051\u3089\u308c\u305f7\u3064\u306e\u968e\u5c64\u306f\u3001\u6b21\u306e\u56f3\u306e\u901a\u308a\u3067\u3059\u3002\u5404\u5c64\u306f\u305f\u3068\u3048\u3070\u7b2c7\u5c64\u3068\u547c\u3070\u305a\u3001\u4e00\u822c\u7684\u306b\u300c\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5c64\u300d\u3084\u300c\u30ec\u30a4\u30e47\uff08\u306a\u306a\uff09\u300d\u3068\u547c\u3070\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<style>\ntd:nth-child(1) {\n    background-color: #eee;\n    width: 30%;\n}\ntd:nth-child(2) {\n    width: 35%;\n}\n<\/style>\n\n\n\n<table class=\"wp-block-table\">\n<tbody>\n<tr><td colspan=\"3\" align=\"center\" bgcolor=\"#ffdead\">OSI\u53c2\u7167\u30e2\u30c7\u30eb<\/td><\/tr><tr><td>\u7b2c7\u5c64\uff08\u30ec\u30a4\u30e47\uff09<\/td><td>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5c64<\/td><td>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3054\u3068\u306e\u56fa\u6709\u306e\u898f\u5b9a<\/td><\/tr><tr><td>\u7b2c6\u5c64\uff08\u30ec\u30a4\u30e46\uff09<\/td><td>\u30d7\u30ec\u30bc\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u5c64<\/td><td>\u30c7\u30fc\u30bf\u306e\u8868\u73fe\u5f62\u5f0f\u3092\u898f\u5b9a<\/td><\/tr><tr><td>\u7b2c5\u5c64\uff08\u30ec\u30a4\u30e45\uff09<\/td><td>\u30bb\u30c3\u30b7\u30e7\u30f3\u5c64<\/td><td>\u901a\u4fe1\u30d7\u30ed\u30b0\u30e9\u30e0\u9593\u306e\u901a\u4fe1\u306e\u78ba\u7acb\u3001\u7dad\u6301\u3001\u7d42\u4e86<\/td><\/tr><tr><td>\u7b2c4\u5c64\uff08\u30ec\u30a4\u30e44\uff09<\/td><td>\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64<\/td><td>\u30ce\u30fc\u30c9\u9593\u306e\u30c7\u30fc\u30bf\u8ee2\u9001\u306b\u304a\u3051\u308b\u4fe1\u983c\u6027\u306e\u78ba\u4fdd<\/td><\/tr><tr><td>\u7b2c3\u5c64\uff08\u30ec\u30a4\u30e43\uff09<\/td><td>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64<\/td><td>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u9593\u306b\u304a\u3051\u308b\u30a8\u30f3\u30c9\u30c4\u30fc\u30a8\u30f3\u30c9\u306e\u901a\u4fe1<\/td><\/tr><tr><td>\u7b2c2\u5c64\uff08\u30ec\u30a4\u30e42\uff09<\/td><td>\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u5c64<\/td><td>\u76f4\u63a5\u7684\u306b\u63a5\u7d9a\u3055\u308c\u305f\u30ce\u30fc\u30c9\u9593\u306e\u901a\u4fe1<\/td><\/tr><tr><td>\u7b2c1\u5c64\uff08\u30ec\u30a4\u30e41\uff09<\/td><td>\u7269\u7406\u5c64<\/td><td>\u30d3\u30c3\u30c8\u5217\u3092\u96fb\u6c17\u4fe1\u53f7\u306b\u5909\u63db<\/td><\/tr><\/tbody><\/table>\n\n\n\n<p>\u968e\u5c64\u306e\u899a\u3048\u65b9\u306f\u3001\u300c<strong>\u30a2\u30d7\u30bb\u30c8\u30cd\u30c7\u30d6<\/strong>\u300d\u306e\u8a9e\u5442\u5408\u308f\u305b\u304c\u3088\u3044\u3067\u3057\u3087\u3046\u3002\u30a2\u30d7\u30bb\u30c8\u30cd\u306f\u82f1\u8a9e\u3067\u300c\u52d5\u63fa\u300d\u3068\u3044\u3046\u610f\u5473\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">OSI\u53c2\u7167\u30e2\u30c7\u30eb\u3068\u30d7\u30ed\u30c8\u30b3\u30eb<\/h3>\n\n\n\n<p><strong>OSI\u53c2\u7167\u30e2\u30c7\u30eb\u3067\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30927\u3064\u306e\u968e\u5c64\u306b\u5206\u3051\u3001\u5404\u5c64\u306e\u30eb\u30fc\u30eb\u300c\u30d7\u30ed\u30c8\u30b3\u30eb\u300d\u306b\u5f93\u3063\u3066\u901a\u4fe1\u3092\u884c\u3044\u307e\u3059\u3002<\/strong>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u901a\u4fe1\u3059\u308b\u969b\u306e\u3084\u308a\u53d6\u308a\u306f\u5927\u5909\u8907\u96d1\u3067\u81a8\u5927\u306a\u305f\u3081\u3001\u7d30\u5206\u5316\u3057\u3066\u30eb\u30fc\u30eb\u3092\u6574\u7406\u3057\u305f\u307b\u3046\u304c\u308f\u304b\u308a\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001OSI\u53c2\u7167\u30e2\u30c7\u30eb\u3067\u306f\u30eb\u30fc\u30eb\u306e\u968e\u5c64\u304c7\u3064\u306b\u5206\u304b\u308c\u3066\u3044\u308b\u306e\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">OSI\u53c2\u7167\u30e2\u30c7\u30eb\uff1a\uff17\u3064\u306e\u968e\u5c64\u306e\u5f79\u5272<\/h2>\n\n\n\n<p>\u3067\u306f\u30017\u3064\u306b\u5206\u3051\u3089\u308c\u305f\u5404\u968e\u5c64\u306f\u3069\u306e\u3088\u3046\u306a\u5f79\u5272\u3092\u62c5\u3063\u3066\u3044\u308b\u306e\u3067\u3057\u3087\u3046\u304b\u3002\u5404\u5c64\u3054\u3068\u306b\u56f3\u89e3\u3092\u307e\u3058\u3048\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7b2c7\u5c64\uff08\u30ec\u30a4\u30e47\uff09\uff1a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5c64<\/h3>\n\n\n\n<p><strong>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5c64\u306f\u3001\u30e6\u30fc\u30b6\u3068\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u898f\u5b9a\u3059\u308b\u5c64\u3067\u3059\u3002<\/strong>\u901a\u4fe1\u3092\u884c\u3046\u305f\u3081\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\uff08\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\uff09\u3054\u3068\u306e\u56fa\u6709\u306e\u30eb\u30fc\u30eb\u304c\u6c7a\u3081\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" loading=\"lazy\" width=\"1200\" height=\"240\" src=\"https:\/\/www.seraku.co.jp\/tectec-note\/wp-content\/uploads\/a8006efeb3b9fb6d453c58b957b309c7.jpg\" alt=\"\u7b2c7\u5c64\uff08\u30ec\u30a4\u30e47\uff09\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5c64\" class=\"wp-image-2458\" srcset=\"https:\/\/www.seraku.co.jp\/tectec-note\/wp-content\/uploads\/a8006efeb3b9fb6d453c58b957b309c7.jpg 1200w, https:\/\/www.seraku.co.jp\/tectec-note\/wp-content\/uploads\/a8006efeb3b9fb6d453c58b957b309c7-768x154.jpg 768w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u7b2c6\u5c64\uff08\u30ec\u30a4\u30e46\uff09\uff1a\u30d7\u30ec\u30bc\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u5c64<\/h3>\n\n\n\n<p><strong>\u30d7\u30ec\u30bc\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u5c64\u306f\u3001\u30c7\u30fc\u30bf\u306e\u8868\u73fe\u5f62\u5f0f\u3092\u898f\u5b9a\u3059\u308b\u5c64\u3067\u3059\u3002<\/strong>\u6587\u5b57\u30b3\u30fc\u30c9\u3084\u753b\u50cf\u306e\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306e\u53d6\u308a\u6c7a\u3081\u3082\u3053\u306e\u5c64\u3067\u3057\u3066\u3044\u307e\u3059\u3002\u6587\u5b57\u304c\u6b63\u3057\u304f\u8868\u793a\u3055\u308c\u306a\u3044\u3001\u3044\u308f\u3086\u308b\u300c\u6587\u5b57\u5316\u3051\u300d\u304c\u8d77\u3053\u308b\u306e\u306f\u3053\u306e\u5c64\u3067\u3001\u7570\u306a\u308b\u6587\u5b57\u30b3\u30fc\u30c9\u3067\u3084\u308a\u53d6\u308a\u3092\u3057\u305f\u969b\u306b\u767a\u751f\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" loading=\"lazy\" width=\"1200\" height=\"240\" src=\"https:\/\/www.seraku.co.jp\/tectec-note\/wp-content\/uploads\/0161eee9569e3f2f307a2a3d3a91c4e6.jpg\" alt=\"\u7b2c6\u5c64\uff08\u30ec\u30a4\u30e46\uff09\u30d7\u30ec\u30bc\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u5c64\" class=\"wp-image-2457\" srcset=\"https:\/\/www.seraku.co.jp\/tectec-note\/wp-content\/uploads\/0161eee9569e3f2f307a2a3d3a91c4e6.jpg 1200w, https:\/\/www.seraku.co.jp\/tectec-note\/wp-content\/uploads\/0161eee9569e3f2f307a2a3d3a91c4e6-768x154.jpg 768w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u7b2c5\u5c64\uff08\u30ec\u30a4\u30e45\uff09\uff1a\u30bb\u30c3\u30b7\u30e7\u30f3\u5c64<\/h3>\n\n\n\n<p><strong>\u30bb\u30c3\u30b7\u30e7\u30f3\u5c64\u306f\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u306e\u7ba1\u7406\u3092\u3059\u308b\u305f\u3081\u306e\u30eb\u30fc\u30eb\u3092\u898f\u5b9a\u3059\u308b\u5c64\u3067\u3059\u3002<\/strong>\u30bb\u30c3\u30b7\u30e7\u30f3\u3068\u306f\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u3088\u308b\u901a\u4fe1\u5168\u4f53\u3092\u6307\u3059\u7528\u8a9e\u3067\u3059\u3002\u7c21\u5358\u306b\u3044\u3046\u3068\u901a\u4fe1\u306e\u958b\u59cb\u304b\u3089\u7d42\u4e86\u307e\u3067\u306e\u3053\u3068\u3068\u3044\u3048\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" loading=\"lazy\" width=\"1200\" height=\"240\" src=\"https:\/\/www.seraku.co.jp\/tectec-note\/wp-content\/uploads\/8e469b679cf9efeb88652dd95d1146c4.jpg\" alt=\"\u7b2c5\u5c64\uff08\u30ec\u30a4\u30e45\uff09\u30bb\u30c3\u30b7\u30e7\u30f3\u5c64\" class=\"wp-image-2456\" srcset=\"https:\/\/www.seraku.co.jp\/tectec-note\/wp-content\/uploads\/8e469b679cf9efeb88652dd95d1146c4.jpg 1200w, https:\/\/www.seraku.co.jp\/tectec-note\/wp-content\/uploads\/8e469b679cf9efeb88652dd95d1146c4-768x154.jpg 768w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u7b2c4\u5c64\uff08\u30ec\u30a4\u30e44\uff09\uff1a\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64<\/h3>\n\n\n\n<p><strong>\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64\u306f\u3001\u901a\u4fe1\u306e\u4fe1\u983c\u6027\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081\u306e\u30eb\u30fc\u30eb\u3092\u898f\u5b9a\u3059\u308b\u5c64\u3067\u3059\u3002<\/strong>\u30c7\u30fc\u30bf\u306e\u3084\u308a\u53d6\u308a\u3092\u3057\u3066\u3044\u3066\u9069\u5207\u306b\u5c4a\u3044\u3066\u3044\u308b\u304b\u3092\u5b9b\u5148\u306b\u78ba\u8a8d\u3059\u308b\u305f\u3081\u306e\u624b\u9806\u304c\u6c7a\u3081\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" loading=\"lazy\" width=\"1200\" height=\"240\" src=\"https:\/\/www.seraku.co.jp\/tectec-note\/wp-content\/uploads\/d68dbf5ab792f33ea01c56d791fcffb9.jpg\" alt=\"\u7b2c4\u5c64\uff08\u30ec\u30a4\u30e44\uff09\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64\" class=\"wp-image-2455\" srcset=\"https:\/\/www.seraku.co.jp\/tectec-note\/wp-content\/uploads\/d68dbf5ab792f33ea01c56d791fcffb9.jpg 1200w, https:\/\/www.seraku.co.jp\/tectec-note\/wp-content\/uploads\/d68dbf5ab792f33ea01c56d791fcffb9-768x154.jpg 768w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u7b2c3\u5c64\uff08\u30ec\u30a4\u30e43\uff09\uff1a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64<\/h3>\n\n\n\n<p><strong>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64\u306f\u3001\u30a8\u30f3\u30c9\u30c4\u30fc\u30a8\u30f3\u30c9\u306e\u901a\u4fe1\u3092\u3059\u308b\u305f\u3081\u306e\u30eb\u30fc\u30eb\u3092\u898f\u5b9a\u3059\u308b\u5c64\u3067\u3059\u3002<\/strong>\u9001\u4fe1\u5143\u304b\u3089\u96a3\u63a5\u3059\u308b\u3055\u307e\u3056\u307e\u306a\u6a5f\u5668\u3092\u7d4c\u7531\u3057\u3066\u672c\u6765\u306e\u5b9b\u5148\u306b\u30c7\u30fc\u30bf\u3092\u5c4a\u3051\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u969b\u306b\u5229\u7528\u3059\u308b\u306e\u304c\u300cIP\u30a2\u30c9\u30ec\u30b9\u300d\u3067\u3059\u3002\u3053\u306e\u5c64\u3067\u898f\u5b9a\u3055\u308c\u305fIIP\u30a2\u30c9\u30ec\u30b9\u3092\u4f7f\u3046\u3053\u3068\u3067\u7570\u306a\u308bLAN\u3078\u306e\u901a\u4fe1\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"rel-Link\">\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64\u306b\u3064\u3044\u3066\u306f<a href=\"https:\/\/www.seraku.co.jp\/tectec-note\/industry\/network-layer\/\">\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64\u3068\u306f\uff1fOSI\u53c2\u7167\u30e2\u30c7\u30eb\u3092\u56f3\u89e3\u3067\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac<\/a>\u3068\u3044\u3046\u8a18\u4e8b\u3067\u8a73\u7d30\u306b\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u306e\u3067\u53c2\u8003\u306b\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" loading=\"lazy\" width=\"1200\" height=\"240\" src=\"https:\/\/www.seraku.co.jp\/tectec-note\/wp-content\/uploads\/d7dbcef0bf30c3386e5855e7c4741601.jpg\" alt=\"\u7b2c3\u5c64\uff08\u30ec\u30a4\u30e43\uff09\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64\" class=\"wp-image-2449\" srcset=\"https:\/\/www.seraku.co.jp\/tectec-note\/wp-content\/uploads\/d7dbcef0bf30c3386e5855e7c4741601.jpg 1200w, https:\/\/www.seraku.co.jp\/tectec-note\/wp-content\/uploads\/d7dbcef0bf30c3386e5855e7c4741601-768x154.jpg 768w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u7b2c2\u5c64\uff08\u30ec\u30a4\u30e42\uff09\uff1a\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u5c64<\/h3>\n\n\n\n<p><strong>\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u5c64\u306f\u3001\u96a3\u63a5\u3059\u308b\u6a5f\u5668\u3068\u901a\u4fe1\u3092\u3059\u308b\u305f\u3081\u306e\u30eb\u30fc\u30eb\u3092\u898f\u5b9a\u3059\u308b\u5c64\u3067\u3059\u3002<\/strong>\u901a\u4fe1\u304c\u59cb\u307e\u3063\u3066\u6700\u521d\u306e\u76f8\u624b\u306f\u30b1\u30fc\u30d6\u30eb\u306a\u3069\u3067\u3064\u306a\u304c\u308b\u901a\u4fe1\u6a5f\u5668\u3067\u3059\u3002\u3053\u306e\u96a3\u63a5\u3059\u308b\u6a5f\u5668\u3068\u6b63\u3057\u304f\u901a\u4fe1\u3092\u3059\u308b\u305f\u3081\u306b\u5fc5\u8981\u306a\u30eb\u30fc\u30eb\u304c\u6c7a\u3081\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"rel-Link\">\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u5c64\u306b\u3064\u3044\u3066\u306f<a href=\"https:\/\/www.seraku.co.jp\/tectec-note\/industry\/data-link-layer\/\">\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u5c64\u3068\u306f\uff1fOSI\u53c2\u7167\u30e2\u30c7\u30eb\u3092\u56f3\u89e3\u3067\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac<\/a>\u3068\u3044\u3046\u8a18\u4e8b\u3067\u8a73\u7d30\u306b\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u306e\u3067\u53c2\u8003\u306b\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" loading=\"lazy\" width=\"1200\" height=\"240\" src=\"https:\/\/www.seraku.co.jp\/tectec-note\/wp-content\/uploads\/c957c2c98b846c2d46a4e7760f45c228.jpg\" alt=\"\u7b2c2\u5c64\uff08\u30ec\u30a4\u30e42\uff09\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u5c64\" class=\"wp-image-2448\" srcset=\"https:\/\/www.seraku.co.jp\/tectec-note\/wp-content\/uploads\/c957c2c98b846c2d46a4e7760f45c228.jpg 1200w, https:\/\/www.seraku.co.jp\/tectec-note\/wp-content\/uploads\/c957c2c98b846c2d46a4e7760f45c228-768x154.jpg 768w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u7b2c1\u5c64\uff08\u30ec\u30a4\u30e41\uff09\uff1a\u7269\u7406\u5c64<\/h3>\n\n\n\n<p><strong>\u7269\u7406\u5c64\u306f\u3001\u30d3\u30c3\u30c8\u3092\u6b63\u3057\u304f\u9001\u53d7\u4fe1\u3059\u308b\u305f\u3081\u306e\u5c64\u3067\u3059\u3002<\/strong>\u96fb\u6c17\u4fe1\u53f7\u3084\u5149\u4fe1\u53f7\u306a\u3069\u3001\u7269\u7406\u7684\u306a\u4fe1\u53f7\u3092\u6b63\u3057\u304f\u76f8\u624b\u5074\u3078\u5c4a\u3051\u308b\u305f\u3081\u306b\u5fc5\u8981\u306a\u30eb\u30fc\u30eb\u304c\u6c7a\u3081\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"rel-Link\">\u7269\u7406\u5c64\u306b\u3064\u3044\u3066\u3001<a href=\"https:\/\/www.seraku.co.jp\/tectec-note\/industry\/physical-layer\/\">OSI\u53c2\u7167\u30e2\u30c7\u30eb\u306e\u7269\u7406\u5c64\u3092\u5206\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac<\/a>\u3068\u3044\u3046\u8a18\u4e8b\u3067\u8a73\u7d30\u306b\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u306e\u3067\u53c2\u8003\u306b\u306a\u3055\u3063\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" loading=\"lazy\" width=\"1200\" height=\"240\" src=\"https:\/\/www.seraku.co.jp\/tectec-note\/wp-content\/uploads\/bf945890d59d126243cbc4b37827bc67.jpg\" alt=\"\u7b2c1\u5c64\uff08\u30ec\u30a4\u30e41\uff09\u7269\u7406\u5c64\" class=\"wp-image-2443\" srcset=\"https:\/\/www.seraku.co.jp\/tectec-note\/wp-content\/uploads\/bf945890d59d126243cbc4b37827bc67.jpg 1200w, https:\/\/www.seraku.co.jp\/tectec-note\/wp-content\/uploads\/bf945890d59d126243cbc4b37827bc67-768x154.jpg 768w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n\n\n\n<h2 class=\"wp-block-heading\">\u30c7\u30fc\u30bf\u306e\u9001\u53d7\u4fe1\u306e\u9806\u756a\u3068\u30ab\u30d7\u30bb\u30eb\u5316<\/h2>\n\n\n\n<p>OSI\u53c2\u7167\u30e2\u30c7\u30eb\u306e\u5404\u5c64\u3067\u30ec\u30a4\u30e47\u304c\u4e0a\u4f4d\u306b\u3042\u308b\u306e\u306f\u3001\u901a\u4fe1\u306e\u51e6\u7406\u304c\u884c\u308f\u308c\u308b\u9001\u4fe1\u5074\u306e\u51e6\u7406\u306e\u9806\u756a\u304c\u30ec\u30a4\u30e47\u304b\u3089\u30b9\u30bf\u30fc\u30c8\u3057\u3001\u30ec\u30a4\u30e41\u3067\u7d42\u308f\u308b\u305f\u3081\u3067\u3059\u3002\u9006\u306b\u53d7\u4fe1\u5074\u306f\u30ec\u30a4\u30e41\u304b\u3089\u30b9\u30bf\u30fc\u30c8\u3057\u3001\u30ec\u30a4\u30e47\u3067\u51e6\u7406\u3092\u7d42\u4e86\u3057\u3066\u30c7\u30fc\u30bf\u3092\u53d7\u4fe1\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u6b21\u9805\u3067\u56f3\u3092\u4f7f\u7528\u3057\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u9001\u4fe1\u5074\u306e\u51e6\u7406\u3068\u30ab\u30d7\u30bb\u30eb\u5316<\/h3>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" loading=\"lazy\" width=\"1200\" height=\"600\" src=\"https:\/\/www.seraku.co.jp\/tectec-note\/wp-content\/uploads\/bb66fcc53ac32ecccd315f6c151ad0e7.jpg\" alt=\"\u30c7\u30fc\u30bf\u9001\u4fe1\u306e\u9806\u756a\u3068\u30ab\u30d7\u30bb\u30eb\u5316\" class=\"wp-image-882\" srcset=\"https:\/\/www.seraku.co.jp\/tectec-note\/wp-content\/uploads\/bb66fcc53ac32ecccd315f6c151ad0e7.jpg 1200w, https:\/\/www.seraku.co.jp\/tectec-note\/wp-content\/uploads\/bb66fcc53ac32ecccd315f6c151ad0e7-768x384.jpg 768w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p>\u9001\u4fe1\u5074\u306e\u30c7\u30fc\u30bf\u304c\u3001\u30ec\u30a4\u30e47\u304b\u3089\u30ec\u30a4\u30e41\u3078\u3068\u51e6\u7406\u3055\u308c\u3066\u3044\u304f\u306e\u306f\u524d\u9805\u3067\u8ff0\u3079\u305f\u901a\u308a\u3067\u3059\u3002\u5404\u5c64\u3067\u30eb\u30fc\u30eb\u901a\u308a\u306b\u51e6\u7406\u3055\u308c\u308b\u3068\u3001\u51e6\u7406\u3057\u305f\u60c5\u5831\u306f\u30d8\u30c3\u30c0\u3068\u3057\u3066\u30c7\u30fc\u30bf\u306e\u524d\u306b\u4ed8\u3051\u52a0\u3048\u3089\u308c\u307e\u3059\u304c\u3001<strong>\u4e0a\u4f4d\u5c64\u304b\u3089\u9806\u756a\u306b\u51e6\u7406\u3055\u308c\u305f\u60c5\u5831\u3092\u30d8\u30c3\u30c0\u3068\u3057\u3066\u4e0b\u4f4d\u5c64\u3078\u5305\u3093\u3067\u3044\u304f\u3053\u3068\u3092\u300c\u30ab\u30d7\u30bb\u30eb\u5316\u300d\u3068\u3044\u3044\u307e\u3059\u3002<\/strong>\u30ab\u30d7\u30bb\u30eb\u5316\u3055\u308c\u305f\u60c5\u5831\u306f\u6700\u7d42\u7684\u306b\u30ec\u30a4\u30e41\u3067\u96fb\u6c17\u4fe1\u53f7\u3068\u306a\u3063\u3066\u9001\u3089\u308c\u3001\u9001\u4fe1\u5074\u306e\u4f5c\u696d\u306f\u5b8c\u4e86\u3067\u3059\u3002\u306a\u304a\u3001\u30ec\u30a4\u30e42\u306e\u30d8\u30c3\u30c0\u3067\u306f\u53d7\u4fe1\u3057\u305f\u30d5\u30ec\u30fc\u30e0\u306b\u8aa4\u308a\u304c\u306a\u3044\u304b\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u305f\u3081\u306e\u300cFCS\u30d8\u30c3\u30c0\u300d\u3082\u4ed8\u3051\u52a0\u3048\u3089\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u53d7\u4fe1\u5074\u306e\u51e6\u7406\u3068\u975e\u30ab\u30d7\u30bb\u30eb\u5316<\/h3>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" loading=\"lazy\" width=\"1200\" height=\"670\" src=\"https:\/\/www.seraku.co.jp\/tectec-note\/wp-content\/uploads\/5129784c3a3bc24983feffd60345149b.jpg\" alt=\"\u30c7\u30fc\u30bf\u53d7\u4fe1\u306e\u9806\u756a\u3068\u975e\u30ab\u30d7\u30bb\u30eb\u5316\" class=\"wp-image-883\" srcset=\"https:\/\/www.seraku.co.jp\/tectec-note\/wp-content\/uploads\/5129784c3a3bc24983feffd60345149b.jpg 1200w, https:\/\/www.seraku.co.jp\/tectec-note\/wp-content\/uploads\/5129784c3a3bc24983feffd60345149b-768x429.jpg 768w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p>\u9001\u4fe1\u5074\u3068\u306f\u9006\u3067\u3001\u53d7\u4fe1\u5074\u3067\u306f\u30ec\u30a4\u30e41\u304b\u3089\u30ec\u30a4\u30e47\u3078\u3068\u51e6\u7406\u3092\u9032\u3081\u3066\u3044\u304f\u3053\u3068\u3082\u524d\u9805\u3067\u8ff0\u3079\u307e\u3057\u305f\u3002\u9001\u4fe1\u5074\u304b\u3089\u96fb\u6c17\u4fe1\u53f7\u3068\u3057\u3066\u9001\u3089\u308c\u305f\u60c5\u5831\u306f\u3001\u53d7\u4fe1\u5074\u306e\u30ec\u30a4\u30e41\u3067\u30d3\u30c3\u30c8\u5217\u306b\u5909\u63db\u3055\u308c\u307e\u3059\u3002<strong>\u53d7\u4fe1\u5074\u3067\u4e0b\u4f4d\u5c64\u304b\u3089\u4e0a\u4f4d\u5c64\u3078\u3068\u9806\u756a\u306b\u51e6\u7406\u3059\u308b\u969b\u3001\u30d8\u30c3\u30c0\u306e\u60c5\u5831\u306b\u9593\u9055\u3044\u304c\u306a\u3044\u3053\u3068\u3092\u78ba\u8a8d\u3057\u305f\u5f8c\u30d8\u30c3\u30c0\u3092\u53d6\u308a\u5916\u3059\u4f5c\u696d\u304c\u3042\u308a\u3001\u3053\u308c\u3092\u300c\u975e\u30ab\u30d7\u30bb\u30eb\u5316\u300d\u3068\u3044\u3044\u307e\u3059\u3002<\/strong>\u30ec\u30a4\u30e47\u307e\u3067\u5230\u9054\u3057\u305f\u3068\u304d\u6b63\u3057\u3044\u30c7\u30fc\u30bf\u304c\u53d7\u4fe1\u5074\u306b\u53d7\u3051\u6e21\u3055\u308c\u3001\u30c7\u30fc\u30bf\u306e\u9001\u53d7\u4fe1\u306f\u5b8c\u4e86\u3067\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">PDU\u306b\u3064\u3044\u3066<\/h4>\n\n\n\n<p><strong>\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u9593\u306e\u9001\u53d7\u4fe1\u3067\u4f7f\u7528\u3055\u308c\u308b\u6700\u5c0f\u306e\u30c7\u30fc\u30bf\u5358\u4f4d\u306e\u3053\u3068\u3092\u300cPDU\uff08Protocol Data Unit\uff09\u300d\u3068\u3044\u3044\u307e\u3059<\/strong>\u3002PDU\u306f\u5404\u5c64\u306e\u30eb\u30fc\u30eb\uff08\u5236\u5fa1\u60c5\u5831\uff1a\u30d8\u30c3\u30c0\uff09\u90e8\u5206\u3068\u305d\u308c\u4ee5\u5916\u306e\u901a\u4fe1\u30c7\u30fc\u30bf\u306e\u4e2d\u8eab\u3067\u3042\u308b\u300c\u30da\u30a4\u30ed\u30fc\u30c9\u300d\u304b\u3089\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<table class=\"wp-block-table\"><tbody><tr><td colspan=\"2\" bgcolor=\"ffdead\">\u968e\u5c64<\/td><td bgcolor=\"add8e6\">PDU<\/td><\/tr><tr><td>\u30ec\u30a4\u30e47<\/td><td>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5c64<\/td><td rowspan=\"3\">\u30e1\u30c3\u30bb\u30fc\u30b8<\/td><\/tr><tr><td>\u30ec\u30a4\u30e46<\/td><td>\u30d7\u30ec\u30bc\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u5c64<\/td><\/tr><tr><td>\u30ec\u30a4\u30e45<\/td><td>\u30bb\u30c3\u30b7\u30e7\u30f3\u5c64<\/td><\/tr><tr><td>\u30ec\u30a4\u30e44<\/td><td>\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64<\/td><td>\u30bb\u30b0\u30e1\u30f3\u30c8<\/td><\/tr><tr><td>\u30ec\u30a4\u30e43<\/td><td>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64<\/td><td>\u30d1\u30b1\u30c3\u30c8<\/td><\/tr><tr><td>\u30ec\u30a4\u30e42<\/td><td>\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u5c64<\/td><td>\u30d5\u30ec\u30fc\u30e0<\/td><\/tr><tr><td>\u30ec\u30a4\u30e41<\/td><td>\u7269\u7406\u5c64<\/td><td>\u30d3\u30c3\u30c8<\/td><\/tr><\/tbody><\/table>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" loading=\"lazy\" width=\"1200\" height=\"540\" src=\"https:\/\/www.seraku.co.jp\/tectec-note\/wp-content\/uploads\/a0bcf1c8afa3677e6552e01d6400e2aa.jpg\" alt=\"\u30da\u30a4\u30ed\u30fc\u30c9\" class=\"wp-image-885\" srcset=\"https:\/\/www.seraku.co.jp\/tectec-note\/wp-content\/uploads\/a0bcf1c8afa3677e6552e01d6400e2aa.jpg 1200w, https:\/\/www.seraku.co.jp\/tectec-note\/wp-content\/uploads\/a0bcf1c8afa3677e6552e01d6400e2aa-768x346.jpg 768w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">OSI\u53c2\u7167\u30e2\u30c7\u30eb\u3068TCP\/IP<\/h2>\n\n\n\n<p>\u3053\u308c\u307e\u3067OSI\u53c2\u7167\u30e2\u30c7\u30eb\u306e\u8a71\u3092\u3057\u3066\u304d\u307e\u3057\u305f\u304c\u3001<strong>\u6700\u8fd1\u3067\u306f\u3001\u901a\u4fe1\u3092\u884c\u3046\u969b\u306bOSI\u53c2\u7167\u30e2\u30c7\u30eb\u3088\u308aTCP\/IP\u30e2\u30c7\u30eb\u304c\u591a\u304f\u5229\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/strong>TCP\/IP\u306fOSI\u53c2\u7167\u30e2\u30c7\u30eb\u306e7\u968e\u5c64\u30924\u968e\u5c64\u3067\u5206\u3051\u3066\u3044\u307e\u3059\u3002\u3067\u306f\u306a\u305c\u3053\u308c\u307e\u3067OSI\u53c2\u7167\u30e2\u30c7\u30eb\u306e\u8aac\u660e\u3092\u3057\u305f\u304b\u3068\u3044\u3046\u3068\u3001\u3053\u308c\u306b\u306f\u6b74\u53f2\u7684\u80cc\u666f\u304c\u3042\u308b\u305f\u3081\u3067\u3059\u3002<strong>OSI\u53c2\u7167\u30e2\u30c7\u30eb\u3092\u4f5c\u6210\u3057\u3066\u3044\u308b\u9593\u306bTCP\/IP\u304c\u5e83\u304f\u666e\u53ca\u3057\u305f\u305f\u3081\u3001\u7d50\u679c\u3068\u3057\u3066\u3059\u3067\u306b\u666e\u53ca\u3057\u3066\u3044\u308bTCP\/IP\u304c\u30c7\u30d5\u30a1\u30af\u30c8\u30b9\u30bf\u30f3\u30c0\u30fc\u30c9\uff08\u4e16\u754c\u6a19\u6e96\uff09\u3068\u306a\u308a\u307e\u3057\u305f\u3002<\/strong><\/p>\n\n\n\n<p>TCP\/IP\u306f\u3001\u30a2\u30e1\u30ea\u30ab\u56fd\u9632\u7dcf\u7701\u304c\u8ecd\u7528\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u7db2\u306e\u305f\u3081\u306b\u4f5c\u6210\u3057\u305f\u901a\u4fe1\u898f\u683c\u3067\u3059\u3002\u3053\u308c\u3092\u7406\u89e3\u3059\u308b\u305f\u3081\u306b\u3082OSI\u53c2\u7167\u30e2\u30c7\u30eb\u306e\u4ed5\u7d44\u307f\u3092\u62bc\u3055\u3048\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>\u3010OSI\u53c2\u7167\u30e2\u30c7\u30eb\u3068TCP\/IP\u306e\u5bfe\u5fdc\u8868\u3011<\/p>\n\n\n\n<table class=\"wp-block-table\"><tbody><tr align=\"center\"><td bgcolor=\"ffdead\">OSI\u53c2\u7167\u30e2\u30c7\u30eb<\/td><td bgcolor=\"add8e6\">TCP\/IP<\/td><\/tr><tr><td>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5c64<\/td><td rowspan=\"3\">\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5c64<\/td><\/tr><tr><td>\u30d7\u30ec\u30bc\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u5c64<\/td><\/tr><tr><td>\u30bb\u30c3\u30b7\u30e7\u30f3\u5c64<\/td><\/tr><tr><td>\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64<\/td><td>\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64<\/td><\/tr><tr><td>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64<\/td><td>\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u5c64<\/td><\/tr><tr><td>\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u5c64<\/td><td rowspan=\"2\">\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u5c64<\/td><\/tr><tr><td>\u7269\u7406\u5c64<\/td><\/tr><\/tbody><\/table>\n\n\n\n<h2 class=\"wp-block-heading\">\u307e\u3068\u3081<\/h2>\n\n\n\n<p>\u300cOSI\u53c2\u7167\u30e2\u30c7\u30eb\u300d\u3068\u306f\u3001\u901a\u4fe1\u898f\u683c\u306e\u7d71\u4e00\u5316\u306e\u305f\u3081\u306b\u56fd\u969b\u6a19\u6e96\u5316\u6a5f\u69cb\uff08ISO\uff09\u3068\u3044\u3046\u7d44\u7e54\u304c\u7b56\u5b9a\u3057\u305f\u898f\u683c\u306e\u3053\u3068\u3067\u3059\u3002OSI\u53c2\u7167\u30e2\u30c7\u30eb\u306f\u901a\u4fe1\u306e\u3084\u308a\u53d6\u308a\u304c7\u968e\u5c64\u306b\u7d30\u5206\u5316\u3055\u308c\u3066\u3044\u308b\u306e\u3067\u308f\u304b\u308a\u3084\u3059\u304f\u3001\u901a\u4fe1\u306e\u3084\u308a\u53d6\u308a\u306f\u5404\u5c64\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\uff08\u30eb\u30fc\u30eb\uff09\u3067\u5236\u5fa1\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u9001\u4fe1\u5074\u304b\u3089\u5404\u5c64\u306e\u30c7\u30fc\u30bf\u306f\u30d8\u30c3\u30c0\u60c5\u5831\u3092\u4ed8\u52a0\u3057\u3066\u4e0b\u4f4d\u5c64\u3078\u6e21\u3057\uff08\u30ab\u30d7\u30bb\u30eb\u5316\uff09\u3001\u305d\u306e\u9006\u3067\u53d7\u4fe1\u5074\u306f\u30d8\u30c3\u30c0\u60c5\u5831\u3092\u53d6\u308a\u5916\u3057\u3066\u3044\u304d\uff08\u975e\u30ab\u30d7\u30bb\u30eb\u5316\uff09\u30c7\u30fc\u30bf\u3092\u53d7\u3051\u53d6\u308a\u307e\u3059\u3002\u3057\u304b\u3057\u306a\u304c\u3089\u5b9f\u969b\u306b\u591a\u304f\u5229\u7528\u3055\u308c\u3066\u3044\u308b\u898f\u683c\u306f\u300cTCP\/IP\u300d\u3067\u3059\u3002\u3053\u3061\u3089\u3092\u7406\u89e3\u3059\u308b\u305f\u3081\u306b\u3082OSI\u53c2\u7167\u30e2\u30c7\u30eb\u306e\u8003\u3048\u65b9\u3092\u62bc\u3055\u3048\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u306f\u3058\u3081\u306b \u300cOSI\u53c2\u7167\u30e2\u30c7\u30eb\u300d\u306f\u901a\u4fe1\u898f\u683c\u306e\u7d71\u4e00\u5316\u3092\u76ee\u6307\u3057\u3066\u7b56\u5b9a\u3055\u308c\u305f\u30e2\u30c7\u30eb\u3067\u3042\u308b \u56fd\u969b\u6a19\u6e96\u5316\u6a5f\u69cb\uff08ISO\uff09\u3068\u3044\u3046\u7d44\u7e54\u304c\u7b56\u5b9a\u3057\u305f OSI\u53c2\u7167\u30e2\u30c7\u30eb\u306f\u901a\u4fe1\u306e\u3084\u308a\u53d6\u308a\u304c7\u968e\u5c64\u306b\u7d30\u5206\u5316\u3055\u308c\u3066\u3044\u308b \u901a\u4fe1\u306e\u3084\u308a\u53d6\u308a\u306f\u300c\u30d7\u30ed\u30c8\u30b3\u30eb\u300d\u3068 [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":20022,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[6],"tags":[8],"acf":[],"_links":{"self":[{"href":"https:\/\/www.seraku.co.jp\/tectec-note\/wp-json\/wp\/v2\/posts\/816"}],"collection":[{"href":"https:\/\/www.seraku.co.jp\/tectec-note\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.seraku.co.jp\/tectec-note\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.seraku.co.jp\/tectec-note\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.seraku.co.jp\/tectec-note\/wp-json\/wp\/v2\/comments?post=816"}],"version-history":[{"count":97,"href":"https:\/\/www.seraku.co.jp\/tectec-note\/wp-json\/wp\/v2\/posts\/816\/revisions"}],"predecessor-version":[{"id":29220,"href":"https:\/\/www.seraku.co.jp\/tectec-note\/wp-json\/wp\/v2\/posts\/816\/revisions\/29220"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.seraku.co.jp\/tectec-note\/wp-json\/wp\/v2\/media\/20022"}],"wp:attachment":[{"href":"https:\/\/www.seraku.co.jp\/tectec-note\/wp-json\/wp\/v2\/media?parent=816"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.seraku.co.jp\/tectec-note\/wp-json\/wp\/v2\/categories?post=816"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.seraku.co.jp\/tectec-note\/wp-json\/wp\/v2\/tags?post=816"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}