{"id":478275,"date":"2023-08-09T09:30:06","date_gmt":"2023-08-09T09:30:06","guid":{"rendered":""},"modified":"2023-09-05T11:16:26","modified_gmt":"2023-09-05T11:16:26","slug":"open-systems-interconnection-osi","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/jp\/wiki\/open-systems-interconnection-osi\/","title":{"rendered":"\u958b\u653e\u578b\u30b7\u30b9\u30c6\u30e0\u76f8\u4e92\u63a5\u7d9a (OSI)"},"content":{"rendered":"<h2>\u5c0e\u5165<\/h2>\n<p>\u30aa\u30fc\u30d7\u30f3 \u30b7\u30b9\u30c6\u30e0 \u30a4\u30f3\u30bf\u30fc\u30b3\u30cd\u30af\u30b7\u30e7\u30f3 (OSI) \u306f\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u4e16\u754c\u306b\u304a\u3051\u308b\u57fa\u672c\u7684\u306a\u6982\u5ff5\u3067\u3059\u3002\u901a\u4fe1\u30b7\u30b9\u30c6\u30e0\u3084\u30b3\u30f3\u30d4\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0 \u30b7\u30b9\u30c6\u30e0\u306e\u6a5f\u80fd\u3092\u6a19\u6e96\u5316\u3059\u308b\u305f\u3081\u306e\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3092\u63d0\u4f9b\u3057\u3001\u3055\u307e\u3056\u307e\u306a\u30b7\u30b9\u30c6\u30e0\u304c\u30b7\u30fc\u30e0\u30ec\u30b9\u306b\u901a\u4fe1\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002OSI \u306f\u3001\u3055\u307e\u3056\u307e\u306a\u30c6\u30af\u30ce\u30ed\u30b8\u3084\u30c7\u30d0\u30a4\u30b9\u304c\u52b9\u7387\u7684\u306b\u76f8\u4e92\u904b\u7528\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u4e0a\u3067\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001OSI \u306e\u6b74\u53f2\u3001\u69cb\u9020\u3001\u4e3b\u306a\u6a5f\u80fd\u3001\u7a2e\u985e\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3001\u5c06\u6765\u306e\u5c55\u671b\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u8aac\u660e\u3057\u3001\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u3068\u306e\u3064\u306a\u304c\u308a\u306b\u3064\u3044\u3066\u3082\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n<h2>OSI\u306e\u6b74\u53f2<\/h2>\n<p>\u901a\u4fe1\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u6a19\u6e96\u5316\u3059\u308b\u3068\u3044\u3046\u30a2\u30a4\u30c7\u30a2\u306f\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304c\u666e\u53ca\u3057\u59cb\u3081\u305f 1970 \u5e74\u4ee3\u306b\u751f\u307e\u308c\u307e\u3057\u305f\u3002\u3053\u306e\u6642\u671f\u306b\u306f\u3001\u3055\u307e\u3056\u307e\u306a\u30d9\u30f3\u30c0\u30fc\u304c\u72ec\u81ea\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u958b\u767a\u3057\u3001\u76f8\u4e92\u904b\u7528\u6027\u306b\u95a2\u3059\u308b\u8ab2\u984c\u304c\u751f\u3058\u307e\u3057\u305f\u3002\u3053\u308c\u306b\u5bfe\u5fdc\u3057\u3066\u3001\u56fd\u969b\u6a19\u6e96\u5316\u6a5f\u69cb (ISO) \u304c OSI \u30e2\u30c7\u30eb\u306e\u4f5c\u6210\u3092\u958b\u59cb\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>OSI \u304c\u521d\u3081\u3066\u8a00\u53ca\u3055\u308c\u305f\u306e\u306f\u30011984 \u5e74\u306b ISO \u306b\u3088\u3063\u3066 OSI \u53c2\u7167\u30e2\u30c7\u30eb\u304c\u767a\u884c\u3055\u308c\u305f 1980 \u5e74\u4ee3\u521d\u982d\u306b\u9061\u308a\u307e\u3059\u3002\u3053\u306e\u30e2\u30c7\u30eb\u306f\u3001\u901a\u4fe1\u30b7\u30b9\u30c6\u30e0\u306e\u3055\u307e\u3056\u307e\u306a\u5c64\u304c\u76f8\u4e92\u306b\u3084\u308a\u53d6\u308a\u3059\u308b\u65b9\u6cd5\u3092\u5b9a\u7fa9\u3059\u308b\u5305\u62ec\u7684\u306a\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3068\u3057\u3066\u6a5f\u80fd\u3057\u307e\u3057\u305f\u3002\u3053\u306e\u30e2\u30c7\u30eb\u306f\u3001\u7570\u306a\u308b\u30b7\u30b9\u30c6\u30e0\u304c\u652f\u969c\u306a\u304f\u901a\u4fe1\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u666e\u904d\u7684\u306a\u6a19\u6e96\u3092\u4f5c\u6210\u3059\u308b\u3053\u3068\u3092\u76ee\u7684\u3068\u3057\u3066\u3044\u307e\u3057\u305f\u3002<\/p>\n<h2>OSI\u306b\u95a2\u3059\u308b\u8a73\u7d30\u60c5\u5831<\/h2>\n<p>OSI \u30e2\u30c7\u30eb\u306f\u968e\u5c64\u578b\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306b\u57fa\u3065\u3044\u3066\u304a\u308a\u3001\u901a\u4fe1\u30d7\u30ed\u30bb\u30b9\u3092 7 \u3064\u306e\u500b\u5225\u306e\u5c64\u306b\u5206\u5272\u3057\u307e\u3059\u3002\u5404\u5c64\u306b\u306f\u7279\u5b9a\u306e\u6a5f\u80fd\u304c\u3042\u308a\u3001\u30c7\u30fc\u30bf\u306f\u9001\u4fe1\u5143\u304b\u3089\u9001\u4fe1\u5148\u307e\u3067\u3053\u308c\u3089\u306e\u5c64\u3092\u901a\u904e\u3057\u307e\u3059\u3002OSI \u30e2\u30c7\u30eb\u306e 7 \u3064\u306e\u5c64\u306f\u3001\u6700\u4e0a\u4f4d\u304b\u3089\u6700\u4e0b\u4f4d\u307e\u3067\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<ol>\n<li>\n<p>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5c64 (\u30ec\u30a4\u30e4\u30fc 7): \u3053\u306e\u5c64\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u3068\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u9593\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u3092\u8868\u3057\u307e\u3059\u3002HTTP\u3001SMTP\u3001FTP \u306a\u3069\u306e\u9ad8\u30ec\u30d9\u30eb \u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u51e6\u7406\u3057\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u9593\u306e\u30c7\u30fc\u30bf\u4ea4\u63db\u3092\u5bb9\u6613\u306b\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p>\u30d7\u30ec\u30bc\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u5c64 (\u30ec\u30a4\u30e4\u30fc 6): \u30c7\u30fc\u30bf\u8868\u73fe\u3092\u62c5\u5f53\u3059\u308b\u3053\u306e\u30ec\u30a4\u30e4\u30fc\u306f\u3001\u30c7\u30fc\u30bf\u3092\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5c64\u304c\u7406\u89e3\u3067\u304d\u308b\u5f62\u5f0f\u306b\u5909\u63db\u3057\u307e\u3059\u3002\u6697\u53f7\u5316\u3068\u5727\u7e2e\u3082\u3053\u3053\u3067\u51e6\u7406\u3055\u308c\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p>\u30bb\u30c3\u30b7\u30e7\u30f3\u5c64 (\u30ec\u30a4\u30e4\u30fc 5): \u30bb\u30c3\u30b7\u30e7\u30f3\u5c64\u306f\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u9593\u306e\u901a\u4fe1\u30bb\u30c3\u30b7\u30e7\u30f3\u3092\u7ba1\u7406\u3057\u307e\u3059\u3002\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u63a5\u7d9a\u3092\u78ba\u7acb\u3001\u7dad\u6301\u3001\u7d42\u4e86\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p>\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64 (\u30ec\u30a4\u30e4\u30fc 4): \u30a8\u30f3\u30c9\u30c4\u30fc\u30a8\u30f3\u30c9\u306e\u901a\u4fe1\u3092\u62c5\u5f53\u3059\u308b\u3053\u306e\u30ec\u30a4\u30e4\u30fc\u306f\u3001\u4fe1\u983c\u6027\u304c\u9ad8\u304f\u30a8\u30e9\u30fc\u306e\u306a\u3044\u30c7\u30fc\u30bf\u8ee2\u9001\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002\u30c7\u30fc\u30bf\u3092\u5c0f\u3055\u306a\u30d1\u30b1\u30c3\u30c8\u306b\u5206\u5272\u3057\u3001\u53d7\u4fe1\u5074\u3067\u518d\u69cb\u6210\u3092\u51e6\u7406\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64 (\u30ec\u30a4\u30e4\u30fc 3): \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64\u306f\u3001\u7570\u306a\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u9593\u3067\u306e\u30d1\u30b1\u30c3\u30c8\u306e\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u51e6\u7406\u3057\u307e\u3059\u3002\u30c7\u30fc\u30bf\u8ee2\u9001\u306b\u6700\u9069\u306a\u30d1\u30b9\u3092\u6c7a\u5b9a\u3057\u3001\u8ad6\u7406\u30a2\u30c9\u30ec\u30b9\u6307\u5b9a\u3092\u51e6\u7406\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p>\u30c7\u30fc\u30bf \u30ea\u30f3\u30af\u5c64 (\u30ec\u30a4\u30e4\u30fc 2): \u30c7\u30fc\u30bf\u306e\u30d5\u30ec\u30fc\u30df\u30f3\u30b0\u3068\u7269\u7406\u30a2\u30c9\u30ec\u30b9\u6307\u5b9a\u3092\u62c5\u5f53\u3057\u3001\u76f4\u63a5\u63a5\u7d9a\u3055\u308c\u305f 2 \u3064\u306e\u30ce\u30fc\u30c9\u9593\u306b\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u30ea\u30f3\u30af\u3092\u78ba\u7acb\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p>\u7269\u7406\u5c64 (\u30ec\u30a4\u30e4\u30fc 1): \u3053\u308c\u306f\u6700\u4e0b\u5c64\u3067\u3042\u308a\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30e1\u30c7\u30a3\u30a2\u3092\u4ecb\u3057\u305f\u30c7\u30fc\u30bf\u306e\u7269\u7406\u7684\u306a\u8ee2\u9001\u3092\u51e6\u7406\u3057\u307e\u3059\u3002\u30c7\u30fc\u30bf\u8ee2\u9001\u306e\u96fb\u6c17\u7684\u304a\u3088\u3073\u6a5f\u68b0\u7684\u306a\u5074\u9762\u3092\u51e6\u7406\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>OSI\u306e\u5185\u90e8\u69cb\u9020<\/h2>\n<p>OSI \u30e2\u30c7\u30eb\u306e\u5185\u90e8\u69cb\u9020\u306f\u5782\u76f4\u30a2\u30d7\u30ed\u30fc\u30c1\u306b\u5f93\u3063\u3066\u304a\u308a\u3001\u5404\u5c64\u306f\u4e0a\u4e0b\u306e\u96a3\u63a5\u5c64\u3068\u901a\u4fe1\u3057\u307e\u3059\u3002\u30c7\u30fc\u30bf\u306f\u3053\u308c\u3089\u306e\u5c64\u3092\u4ecb\u3057\u3066\u9001\u4fe1\u8005\u304b\u3089\u53d7\u4fe1\u8005\u3078\u3001\u307e\u305f\u305d\u306e\u9006\u306e\u65b9\u5411\u306b\u53cc\u65b9\u5411\u306b\u6d41\u308c\u307e\u3059\u3002<\/p>\n<p>OSI \u306e\u91cd\u8981\u306a\u539f\u5247\u306e 1 \u3064\u306f\u3001\u30c7\u30fc\u30bf\u306e\u30ab\u30d7\u30bb\u30eb\u5316\u3067\u3059\u3002\u30c7\u30fc\u30bf\u304c\u5c64\u3092\u901a\u904e\u3059\u308b\u3068\u3001\u5404\u5c64\u306f\u72ec\u81ea\u306e\u30d8\u30c3\u30c0\u30fc\u3092\u8ffd\u52a0\u3057\u307e\u3059\u3002\u3053\u306e\u30d8\u30c3\u30c0\u30fc\u306b\u306f\u3001\u305d\u306e\u5c64\u306b\u56fa\u6709\u306e\u5236\u5fa1\u60c5\u5831\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002\u53d7\u4fe1\u5074\u3067\u306f\u3001\u5404\u5c64\u306f\u305d\u308c\u305e\u308c\u306e\u30d8\u30c3\u30c0\u30fc\u3092\u524a\u9664\u3057\u3001\u30c7\u30fc\u30bf\u304c\u5c64\u3092\u4e0a\u3063\u3066\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5c64\u306b\u5230\u9054\u3059\u308b\u307e\u3067\u30c7\u30fc\u30bf\u3092\u51e6\u7406\u3057\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u3088\u3046\u306a\u968e\u5c64\u5316\u30a2\u30d7\u30ed\u30fc\u30c1\u306e\u5229\u70b9\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8a2d\u8a08\u304c\u7c21\u7d20\u5316\u3055\u308c\u3001\u30e2\u30b8\u30e5\u30fc\u30eb\u5316\u304c\u53ef\u80fd\u306b\u306a\u308a\u3001\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u304c\u5bb9\u6613\u306b\u306a\u308b\u3053\u3068\u3067\u3059\u30021 \u3064\u306e\u30ec\u30a4\u30e4\u30fc\u306e\u5909\u66f4\u306f\u4ed6\u306e\u30ec\u30a4\u30e4\u30fc\u306b\u5f71\u97ff\u3057\u306a\u3044\u305f\u3081\u3001\u76f8\u4e92\u904b\u7528\u6027\u3068\u67d4\u8edf\u6027\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002<\/p>\n<h2>OSI \u306e\u4e3b\u306a\u7279\u5fb4\u306e\u5206\u6790<\/h2>\n<p>OSI \u30e2\u30c7\u30eb\u306b\u306f\u3001\u5f37\u529b\u3067\u5e83\u304f\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u901a\u4fe1\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3068\u306a\u308b\u3044\u304f\u3064\u304b\u306e\u91cd\u8981\u306a\u6a5f\u80fd\u304c\u5099\u308f\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<ol>\n<li>\n<p><strong>\u6a19\u6e96\u5316<\/strong>OSI \u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u901a\u4fe1\u306b\u95a2\u3059\u308b\u4e16\u754c\u7684\u306b\u8a8d\u3081\u3089\u308c\u305f\u6a19\u6e96\u3092\u63d0\u4f9b\u3057\u3001\u3055\u307e\u3056\u307e\u306a\u30d9\u30f3\u30c0\u30fc\u304c\u4e92\u63db\u6027\u306e\u3042\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u88fd\u54c1\u3084\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3092\u958b\u767a\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u968e\u5c64\u5316\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3<\/strong>: \u968e\u5c64\u69cb\u9020\u306b\u3088\u308a\u3001\u5404\u5c64\u304c\u7279\u5b9a\u306e\u6a5f\u80fd\u3092\u6301\u3061\u3001\u72ec\u7acb\u3057\u3066\u52d5\u4f5c\u3059\u308b\u305f\u3081\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u7ba1\u7406\u3068\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u304c\u7c21\u7d20\u5316\u3055\u308c\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u76f8\u4e92\u904b\u7528\u6027<\/strong>OSI \u306f\u3001\u30ec\u30a4\u30e4\u30fc\u9593\u306e\u660e\u78ba\u306a\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u5b9a\u7fa9\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u3001\u7570\u306a\u308b\u30e1\u30fc\u30ab\u30fc\u306e\u30c7\u30d0\u30a4\u30b9\u3084\u30b7\u30b9\u30c6\u30e0\u304c\u52b9\u7387\u7684\u306b\u901a\u4fe1\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u67d4\u8edf\u6027<\/strong>OSI \u306f\u3001\u4ed6\u306e\u30ec\u30a4\u30e4\u30fc\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u3053\u3068\u306a\u304f\u500b\u3005\u306e\u30ec\u30a4\u30e4\u30fc\u306e\u9032\u5316\u3092\u53ef\u80fd\u306b\u3057\u3001\u6280\u8853\u306e\u9032\u6b69\u306b\u9069\u5fdc\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30e2\u30b8\u30e5\u30fc\u30eb\u6027<\/strong>OSI \u306e\u30e2\u30b8\u30e5\u30fc\u30eb\u8a2d\u8a08\u306b\u3088\u308a\u3001\u958b\u767a\u8005\u306f\u30b7\u30b9\u30c6\u30e0\u5168\u4f53\u3092\u6df7\u4e71\u3055\u305b\u308b\u3053\u3068\u306a\u304f\u500b\u3005\u306e\u30ec\u30a4\u30e4\u30fc\u3092\u5b9f\u88c5\u304a\u3088\u3073\u5909\u66f4\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u666e\u904d\u7684\u306a\u53d7\u5bb9<\/strong>OSI \u306f\u4e16\u754c\u6a19\u6e96\u3068\u3057\u3066\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u696d\u754c\u3067\u5e83\u304f\u53d7\u3051\u5165\u308c\u3089\u308c\u3001\u4e16\u754c\u4e2d\u3067\u30b7\u30fc\u30e0\u30ec\u30b9\u306a\u901a\u4fe1\u3092\u4fc3\u9032\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>OSI\u306e\u7a2e\u985e<\/h2>\n<p>OSI \u30e2\u30c7\u30eb\u306f\u901a\u4fe1\u30d7\u30ed\u30c8\u30b3\u30eb\u305d\u306e\u3082\u306e\u3067\u306f\u306a\u304f\u3001\u901a\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u7406\u89e3\u3057\u3066\u8a2d\u8a08\u3059\u308b\u305f\u3081\u306e\u6982\u5ff5\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3067\u3059\u3002\u305f\u3060\u3057\u3001OSI \u30e2\u30c7\u30eb\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306b\u5f93\u3063\u3066\u3001\u3055\u307e\u3056\u307e\u306a\u30d7\u30ed\u30c8\u30b3\u30eb\u3068\u30c6\u30af\u30ce\u30ed\u30b8\u304c\u958b\u767a\u3055\u308c\u3066\u304d\u307e\u3057\u305f\u3002OSI \u30d9\u30fc\u30b9\u306e\u30c6\u30af\u30ce\u30ed\u30b8\u306e\u4e3b\u306a\u30bf\u30a4\u30d7\u306b\u306f\u3001\u6b21\u306e\u3082\u306e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ol>\n<li>\n<p><strong>TCP\/IP<\/strong>\u6700\u3082\u5e83\u304f\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30d7\u30ed\u30c8\u30b3\u30eb \u30b9\u30a4\u30fc\u30c8\u3067\u3042\u308b TCP\/IP (Transmission Control Protocol\/Internet Protocol) \u306f\u3001OSI \u3068\u540c\u69d8\u306e\u968e\u5c64\u5316\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306b\u5f93\u3044\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u901a\u4fe1\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>X.25<\/strong>: \u73fe\u4ee3\u306e\u30d1\u30b1\u30c3\u30c8\u4ea4\u63db\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u524d\u8eab\u3067\u3042\u308b X.25 \u306f\u3001\u521d\u671f\u306e\u5e83\u57df\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u4e00\u822c\u7684\u306b\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3057\u305f\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30d5\u30ec\u30fc\u30e0\u30ea\u30ec\u30fc<\/strong>: \u9ad8\u901f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u52b9\u7387\u7684\u306a\u30c7\u30fc\u30bf\u8ee2\u9001\u3092\u884c\u3046\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u308b\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u5c64\u30d7\u30ed\u30c8\u30b3\u30eb\u3002<\/p>\n<\/li>\n<li>\n<p><strong>ATM (\u975e\u540c\u671f\u8ee2\u9001\u30e2\u30fc\u30c9)<\/strong>\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u5c64\u3068\u7269\u7406\u5c64\u3067\u52d5\u4f5c\u3057\u3001\u3055\u307e\u3056\u307e\u306a\u30bf\u30a4\u30d7\u306e\u30c7\u30fc\u30bf\u306e\u9ad8\u901f\u4f1d\u9001\u3092\u63d0\u4f9b\u3059\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u6280\u8853\u3002<\/p>\n<\/li>\n<li>\n<p><strong>ISDN\uff08\u7dcf\u5408\u30c7\u30b8\u30bf\u30eb\u901a\u4fe1\u7db2\uff09<\/strong>: \u5f93\u6765\u306e\u96fb\u8a71\u56de\u7dda\u3092\u4ecb\u3057\u305f\u97f3\u58f0\u304a\u3088\u3073\u30c7\u30fc\u30bf\u901a\u4fe1\u7528\u306e\u53e4\u3044\u30c6\u30af\u30ce\u30ed\u30b8\u30fc\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>OSI \u306e\u4f7f\u7528\u65b9\u6cd5\u3068\u95a2\u9023\u3059\u308b\u8ab2\u984c<\/h2>\n<p>OSI \u306f\u3001\u5358\u7d14\u306a\u30ed\u30fc\u30ab\u30eb \u30a8\u30ea\u30a2 \u30cd\u30c3\u30c8\u30ef\u30fc\u30af (LAN) \u304b\u3089\u5e83\u5927\u306a\u30b0\u30ed\u30fc\u30d0\u30eb \u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u307e\u3067\u3001\u307b\u307c\u3059\u3079\u3066\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u901a\u4fe1\u306e\u4e2d\u6838\u3092\u306a\u3057\u3066\u3044\u307e\u3059\u3002OSI \u304c\u5e83\u304f\u63a1\u7528\u3055\u308c\u305f\u3053\u3068\u3067\u3001\u3055\u307e\u3056\u307e\u306a\u30c7\u30d0\u30a4\u30b9\u3001\u30b5\u30fc\u30d0\u30fc\u3001\u30b5\u30fc\u30d3\u30b9\u9593\u306e\u901a\u4fe1\u304c\u53ef\u80fd\u306b\u306a\u308a\u3001\u4e16\u754c\u304c\u3064\u306a\u304c\u308a\u307e\u3057\u305f\u3002<\/p>\n<p>\u3057\u304b\u3057\u3001\u305d\u306e\u5805\u7262\u6027\u306b\u3082\u304b\u304b\u308f\u3089\u305a\u3001OSI \u306e\u5b9f\u88c5\u306f\u6642\u3005\u8ab2\u984c\u306b\u76f4\u9762\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ol>\n<li>\n<p><strong>\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u4e92\u63db\u6027<\/strong>: \u7570\u306a\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30c7\u30d0\u30a4\u30b9\u306f\u7570\u306a\u308b\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u5834\u5408\u304c\u3042\u308a\u3001\u30c7\u30d0\u30a4\u30b9\u9593\u306e\u901a\u4fe1\u306b\u554f\u984c\u304c\u751f\u3058\u307e\u3059\u3002\u3053\u306e\u8ab2\u984c\u3092\u514b\u670d\u3059\u308b\u306b\u306f\u3001\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u5909\u63db\u307e\u305f\u306f\u9069\u5fdc\u30e1\u30ab\u30cb\u30ba\u30e0\u304c\u5fc5\u8981\u306b\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30fc<\/strong>: \u30c7\u30fc\u30bf\u304c\u3055\u307e\u3056\u307e\u306a\u30ec\u30a4\u30e4\u30fc\u3084\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u901a\u904e\u3059\u308b\u305f\u3081\u3001\u30c7\u30fc\u30bf\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3068\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u3092\u78ba\u4fdd\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u306b\u306a\u308a\u307e\u3059\u3002\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4e0a\u306e\u61f8\u5ff5\u306b\u5bfe\u51e6\u3059\u308b\u306b\u306f\u3001\u9069\u5207\u306a\u6697\u53f7\u5316\u3068\u8a8d\u8a3c\u306e\u30e1\u30ab\u30cb\u30ba\u30e0\u304c\u4e0d\u53ef\u6b20\u3067\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u6700\u9069\u5316<\/strong>\u5404\u5c64\u3067\u306e\u30c7\u30fc\u30bf\u306e\u30ab\u30d7\u30bb\u30eb\u5316\u3068\u51e6\u7406\u306b\u3088\u308a\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u304c\u767a\u751f\u3057\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u5f71\u97ff\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u6700\u9069\u5316\u3059\u308b\u305f\u3081\u306b\u3001\u52b9\u7387\u7684\u306a\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3068\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2 \u30a2\u30af\u30bb\u30e9\u30ec\u30fc\u30b7\u30e7\u30f3\u304c\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30b9\u30b1\u30fc\u30e9\u30d3\u30ea\u30c6\u30a3<\/strong>: \u5927\u898f\u6a21\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u306f\u3001\u591a\u6570\u306e\u30c7\u30d0\u30a4\u30b9\u9593\u306e\u901a\u4fe1\u306e\u7ba1\u7406\u304c\u8907\u96d1\u306b\u306a\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u30b9\u30b1\u30fc\u30e9\u30d6\u30eb\u306a\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3068\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0 \u30d7\u30ed\u30c8\u30b3\u30eb\u306f\u3001\u30b9\u30b1\u30fc\u30e9\u30d3\u30ea\u30c6\u30a3\u306e\u554f\u984c\u306b\u5bfe\u51e6\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>\u4e3b\u306a\u7279\u5fb4\u3068\u6bd4\u8f03<\/h2>\n<p>OSI \u306e\u4e3b\u8981\u306a\u6982\u5ff5\u3092\u3088\u308a\u3088\u304f\u7406\u89e3\u3059\u308b\u305f\u3081\u306b\u3001\u985e\u4f3c\u306e\u7528\u8a9e\u3068\u6bd4\u8f03\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th><strong>\u5b66\u671f<\/strong><\/th>\n<th><strong>\u8aac\u660e<\/strong><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>OSI \u3068 TCP\/IP<\/td>\n<td>OSI \u306f\u6982\u5ff5\u30e2\u30c7\u30eb\u3067\u3059\u304c\u3001TCP\/IP \u306f OSI \u30e2\u30c7\u30eb\u306b\u57fa\u3065\u304f\u5b9f\u7528\u7684\u306a\u30d7\u30ed\u30c8\u30b3\u30eb \u30b9\u30a4\u30fc\u30c8\u3067\u3059\u3002TCP\/IP \u306f\u3001\u7279\u306b\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306e\u5206\u91ce\u3067\u306f\u3001\u3088\u308a\u5e83\u304f\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td>OSI \u3068 ISO\/OSI<\/td>\n<td>OSI \u306f\u901a\u4fe1\u30e2\u30c7\u30eb\u3092\u6307\u3057\u3001ISO\/OSI \u306f\u901a\u4fe1\u306e\u6a19\u6e96\u5316\u30e2\u30c7\u30eb\u3092\u4f5c\u6210\u3059\u308b\u305f\u3081\u306e\u56fd\u969b\u6a19\u6e96\u5316\u6a5f\u69cb\u306e\u53d6\u308a\u7d44\u307f\u3092\u8868\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u7528\u8a9e\u306f\u3001\u591a\u304f\u306e\u5834\u5408\u3001\u540c\u3058\u610f\u5473\u3067\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td>OSI \u3068 OSI \u30e2\u30c7\u30eb<\/td>\n<td>OSI \u306f\u5305\u62ec\u7684\u306a\u6982\u5ff5\u3067\u3042\u308a\u3001OSI \u30e2\u30c7\u30eb\u306f\u30ec\u30a4\u30e4\u30fc\u3068\u305d\u306e\u6a5f\u80fd\u306e\u8a73\u7d30\u306a\u4ed5\u69d8\u3067\u3059\u3002OSI \u30e2\u30c7\u30eb\u306f\u3001OSI \u6982\u5ff5\u306e\u5b9f\u969b\u306e\u5b9f\u88c5\u3067\u3059\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u5c55\u671b\u3068\u5c06\u6765\u306e\u30c6\u30af\u30ce\u30ed\u30b8\u30fc<\/h2>\n<p>\u6280\u8853\u304c\u9032\u6b69\u3057\u7d9a\u3051\u3066\u3082\u3001OSI \u30e2\u30c7\u30eb\u306f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8a2d\u8a08\u306e\u57fa\u672c\u8981\u7d20\u3067\u3042\u308a\u7d9a\u3051\u308b\u3067\u3057\u3087\u3046\u3002OSI \u306b\u95a2\u9023\u3059\u308b\u5c06\u6765\u306e\u6280\u8853\u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u70b9\u306b\u91cd\u70b9\u3092\u7f6e\u304f\u3068\u8003\u3048\u3089\u308c\u307e\u3059\u3002<\/p>\n<ol>\n<li>\n<p><strong>\u4eee\u60f3\u5316<\/strong>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4eee\u60f3\u5316\u306a\u3069\u306e\u30c6\u30af\u30ce\u30ed\u30b8\u30fc\u306b\u3088\u308a\u3001\u8907\u6570\u306e\u7269\u7406\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u307e\u305f\u304c\u308b\u4eee\u60f3\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30bb\u30b0\u30e1\u30f3\u30c8\u306e\u4f5c\u6210\u304c\u53ef\u80fd\u306b\u306a\u308a\u3001\u67d4\u8edf\u6027\u3068\u30ea\u30bd\u30fc\u30b9\u4f7f\u7528\u7387\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u5b9a\u7fa9\u30cd\u30c3\u30c8\u30ef\u30fc\u30ad\u30f3\u30b0 (SDN)<\/strong>SDN \u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u5236\u5fa1\u30d7\u30ec\u30fc\u30f3\u3092\u30c7\u30fc\u30bf \u30d7\u30ec\u30fc\u30f3\u304b\u3089\u5206\u96e2\u3057\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u96c6\u4e2d\u7ba1\u7406\u3068\u52d5\u7684\u306a\u69cb\u6210\u3092\u53ef\u80fd\u306b\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30e2\u30ce\u306e\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8 (IoT)<\/strong>IoT \u30c7\u30d0\u30a4\u30b9\u306e\u666e\u53ca\u304c\u9032\u3080\u306b\u3064\u308c\u3066\u3001\u76f8\u4e92\u63a5\u7d9a\u3055\u308c\u305f\u81a8\u5927\u306a\u6570\u306e\u30c7\u30d0\u30a4\u30b9\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u305f\u3081\u306b\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30d7\u30ed\u30c8\u30b3\u30eb\u3068\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3 \u30e1\u30ab\u30cb\u30ba\u30e0\u306e\u9032\u6b69\u304c\u4e0d\u53ef\u6b20\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>5G\u3068\u305d\u306e\u5148\u3078<\/strong>\u6b21\u4e16\u4ee3\u306e\u30bb\u30eb\u30e9\u30fc \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u306f\u3001\u9ad8\u3044\u30c7\u30fc\u30bf \u30ec\u30fc\u30c8\u3001\u4f4e\u9045\u5ef6\u3001\u304a\u3088\u3073\u5927\u91cf\u306e\u30c7\u30d0\u30a4\u30b9\u63a5\u7d9a\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u65b0\u3057\u3044\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30c6\u30af\u30ce\u30ed\u30b8\u304c\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>\u30d7\u30ed\u30ad\u30b7\u30b5\u30fc\u30d0\u30fc\u3068 OSI<\/h2>\n<p>\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3068\u30b5\u30fc\u30d0\u30fc\u306e\u9593\u306e\u4ef2\u4ecb\u5f79\u3068\u3057\u3066\u6a5f\u80fd\u3057\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u7ba1\u7406\u3068\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u5f37\u5316\u306b\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002OSI \u306f\u4e3b\u306b\u901a\u4fe1\u306e\u6982\u5ff5\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3092\u6271\u3063\u3066\u3044\u307e\u3059\u304c\u3001\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f OSI \u30e2\u30c7\u30eb\u306e\u3055\u307e\u3056\u307e\u306a\u30ec\u30a4\u30e4\u30fc\u3067\u52d5\u4f5c\u3057\u3066\u6a5f\u80fd\u3092\u679c\u305f\u3057\u307e\u3059\u3002<\/p>\n<p>\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u3068 OSI \u30e2\u30c7\u30eb\u306e\u95a2\u4fc2\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<ol>\n<li>\n<p><strong>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5c64\uff08\u30ec\u30a4\u30e4\u30fc7\uff09<\/strong>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3 \u30ec\u30d9\u30eb\u306e\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f\u3001HTTP \u8981\u6c42\u3092\u30a4\u30f3\u30bf\u30fc\u30bb\u30d7\u30c8\u3057\u3066\u30d5\u30a3\u30eb\u30bf\u30fc\u51e6\u7406\u3057\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c\u8a31\u53ef\u3055\u308c\u305f\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u307f\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64\uff08\u30ec\u30a4\u30e4\u30fc4\uff09<\/strong>: \u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64\u3067\u52d5\u4f5c\u3057\u3066\u8ca0\u8377\u5206\u6563\u3092\u5b9f\u884c\u3057\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u8907\u6570\u306e\u30b5\u30fc\u30d0\u30fc\u306b\u5206\u6563\u3057\u3066\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u5197\u9577\u6027\u3092\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u5c64(\u30ec\u30a4\u30e4\u30fc2)<\/strong>: \u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f\u3001\u30ed\u30fc\u30ab\u30eb \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u306e MAC (\u30e1\u30c7\u30a3\u30a2 \u30a2\u30af\u30bb\u30b9 \u30b3\u30f3\u30c8\u30ed\u30fc\u30eb) \u30a2\u30c9\u30ec\u30b9 \u30d9\u30fc\u30b9\u306e\u901a\u4fe1\u3092\u7ba1\u7406\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3067\u304d\u3001\u5b89\u5168\u3067\u52b9\u7387\u7684\u306a\u30c7\u30fc\u30bf\u8ee2\u9001\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u7269\u7406\u5c64\uff08\u30ec\u30a4\u30e4\u30fc1\uff09<\/strong>: \u3042\u307e\u308a\u4e00\u822c\u7684\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u4e00\u90e8\u306e\u7279\u6b8a\u306a\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f\u7269\u7406\u5c64\u3067\u52d5\u4f5c\u3057\u3001\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2 \u30ec\u30d9\u30eb\u306e\u5206\u96e2\u3068\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>\u95a2\u9023\u30ea\u30f3\u30af<\/h2>\n<p>\u30aa\u30fc\u30d7\u30f3 \u30b7\u30b9\u30c6\u30e0 \u30a4\u30f3\u30bf\u30fc\u30b3\u30cd\u30af\u30b7\u30e7\u30f3 (OSI) \u306b\u95a2\u3059\u308b\u8a73\u7d30\u306a\u60c5\u5831\u306b\u3064\u3044\u3066\u306f\u3001\u6b21\u306e\u30ea\u30bd\u30fc\u30b9\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<ol>\n<li>\n<p><a href=\"https:\/\/www.iso.org\/iso-osi-reference-model.html\" target=\"_new\" rel=\"noopener nofollow\">ISO OSI\u53c2\u7167\u30e2\u30c7\u30eb<\/a> \u2013 OSI \u53c2\u7167\u30e2\u30c7\u30eb\u306b\u95a2\u3059\u308b\u516c\u5f0f ISO \u30da\u30fc\u30b8\u3002<\/p>\n<\/li>\n<li>\n<p><a href=\"https:\/\/www.tcpipguide.com\/free\/index.htm\" target=\"_new\" rel=\"noopener nofollow\">TCP\/IP \u30ac\u30a4\u30c9<\/a> \u2013 OSI \u30e2\u30c7\u30eb\u306b\u57fa\u3065\u304f\u30d7\u30ed\u30c8\u30b3\u30eb \u30b9\u30a4\u30fc\u30c8\u3067\u3042\u308b TCP\/IP \u306e\u5305\u62ec\u7684\u306a\u30ac\u30a4\u30c9\u3002<\/p>\n<\/li>\n<li>\n<p><a href=\"https:\/\/www.sdxcentral.com\/sdn\/definitions\/sdn-explained\/\" target=\"_new\" rel=\"noopener nofollow\">SDN \u306e\u8aac\u660e<\/a> \u2013 \u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u5b9a\u7fa9\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u305d\u308c\u304c\u5c06\u6765\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u4e0e\u3048\u308b\u5f71\u97ff\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u5b66\u3073\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><a href=\"https:\/\/www.computerworld.com\/article\/3239678\/the-intersection-of-iot-and-networking.html\" target=\"_new\" rel=\"noopener nofollow\">IoT\u3068\u30cd\u30c3\u30c8\u30ef\u30fc\u30af<\/a> \u2013 IoT \u3068\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30c6\u30af\u30ce\u30ed\u30b8\u30fc\u306e\u4ea4\u5dee\u70b9\u3092\u7406\u89e3\u3059\u308b\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>\u7d50\u8ad6<\/h2>\n<p>\u30aa\u30fc\u30d7\u30f3 \u30b7\u30b9\u30c6\u30e0 \u30a4\u30f3\u30bf\u30fc\u30b3\u30cd\u30af\u30b7\u30e7\u30f3 (OSI) \u306f\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u4e16\u754c\u3092\u5f62\u4f5c\u3063\u305f\u753b\u671f\u7684\u306a\u30e2\u30c7\u30eb\u3067\u3059\u3002\u968e\u5c64\u5316\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3068\u6a19\u6e96\u5316\u306e\u53d6\u308a\u7d44\u307f\u306b\u3088\u308a\u3001OSI \u306f\u3055\u307e\u3056\u307e\u306a\u30c6\u30af\u30ce\u30ed\u30b8\u3068\u30b7\u30b9\u30c6\u30e0\u306e\u30b7\u30fc\u30e0\u30ec\u30b9\u306a\u901a\u4fe1\u3092\u53ef\u80fd\u306b\u3057\u307e\u3057\u305f\u3002\u5c06\u6765\u3092\u898b\u636e\u3048\u308b\u3068\u3001OSI \u306f\u9769\u65b0\u7684\u3067\u76f8\u4e92\u63a5\u7d9a\u3055\u308c\u305f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u69cb\u7bc9\u3059\u308b\u305f\u3081\u306e\u91cd\u8981\u306a\u57fa\u76e4\u3068\u3057\u3066\u6a5f\u80fd\u3057\u7d9a\u3051\u3001\u73fe\u4ee3\u306e\u30c6\u30af\u30ce\u30ed\u30b8\u3068\u30b5\u30fc\u30d3\u30b9\u306e\u9032\u5316\u3092\u4fc3\u9032\u3057\u307e\u3059\u3002<\/p>","protected":false},"featured_media":0,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-478275","wiki","type-wiki","status-publish","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>Open Systems Interconnection (OSI): Facilitating Seamless Communication in the Digital World<\/mark>","faq_items":[{"question":"What is Open Systems Interconnection (OSI)?","answer":"<p>Open Systems Interconnection (OSI) is a conceptual model that provides a framework for standardizing the functions of telecommunication and computing systems. It allows different systems to communicate with each other seamlessly by defining clear interfaces and functions for each layer.<\/p>"},{"question":"How did OSI originate, and when was it first mentioned?","answer":"<p>The concept of OSI emerged in the 1970s when the International Organization for Standardization (ISO) aimed to address the interoperability challenges arising from proprietary protocols. The first mention of OSI dates back to 1984 when the ISO published the OSI Reference Model.<\/p>"},{"question":"How does OSI work, and what are its internal layers?","answer":"<p>OSI follows a layered architecture, with seven distinct layers: Application, Presentation, Session, Transport, Network, Data Link, and Physical. Data passes through these layers from the source to the destination, with each layer adding its header and processing the data as it moves up the layers.<\/p>"},{"question":"What are the key features of OSI?","answer":"<p>OSI's key features include standardization, layered architecture, interoperability, flexibility, modularity, and universal acceptance. These features make it a powerful and widely adopted communication framework.<\/p>"},{"question":"What types of OSI technologies exist?","answer":"<p>Various technologies follow the OSI model's guidelines, including TCP\/IP, X.25, Frame Relay, ATM, and ISDN. These technologies enable efficient data transmission and communication across networks.<\/p>"},{"question":"How is OSI used, and what challenges does it face?","answer":"<p>OSI is fundamental to almost all network communications, from local area networks (LANs) to the global internet. It faces challenges related to protocol compatibility, network security, performance optimization, and scalability.<\/p>"},{"question":"How does OSI compare to similar terms?","answer":"<p>OSI is a conceptual model, while TCP\/IP is a practical protocol suite based on OSI principles. ISO\/OSI refers to ISO's efforts to create a standardized communication model, often used interchangeably with OSI. The OSI model is the detailed specification of the layers and their functions within the OSI concept.<\/p>"},{"question":"What are the future technologies related to OSI?","answer":"<p>Future technologies related to OSI include virtualization, software-defined networking (SDN), Internet of Things (IoT) advancements, and innovations in 5G and beyond cellular networks.<\/p>"},{"question":"How are proxy servers associated with OSI?","answer":"<p>Proxy servers act as intermediaries between clients and servers, operating at various layers of the OSI model to manage network traffic and enhance security.<\/p>"},{"question":"Where can I find more information about OSI?","answer":"<p>For further exploration of OSI, check out the ISO's official page on the OSI Reference Model, a comprehensive guide to TCP\/IP, information on SDN, IoT and networking, and more through the provided related links.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/wiki\/478275","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/wiki\/478275\/revisions"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/media?parent=478275"}],"curies":[{"name":"\u3046\u30fc\u3093","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}