{"id":478962,"date":"2023-08-09T09:40:56","date_gmt":"2023-08-09T09:40:56","guid":{"rendered":""},"modified":"2023-09-05T11:17:54","modified_gmt":"2023-09-05T11:17:54","slug":"session-layer","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/jp\/wiki\/session-layer\/","title":{"rendered":"\u30bb\u30c3\u30b7\u30e7\u30f3\u5c64"},"content":{"rendered":"<p>\u30bb\u30c3\u30b7\u30e7\u30f3\u5c64\u306f\u3001\u901a\u4fe1\u307e\u305f\u306f\u30b3\u30f3\u30d4\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0 \u30b7\u30b9\u30c6\u30e0\u306e\u6a5f\u80fd\u3092\u6a19\u6e96\u5316\u3059\u308b\u6982\u5ff5\u7684\u306a\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3067\u3042\u308b OSI (Open Systems Interconnection) \u30e2\u30c7\u30eb\u306e\u91cd\u8981\u306a\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3067\u3059\u3002\u30bb\u30c3\u30b7\u30e7\u30f3\u5c64\u306f\u3001\u901a\u4fe1\u3059\u308b\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u307e\u305f\u306f\u30c7\u30d0\u30a4\u30b9\u9593\u306e\u30bb\u30c3\u30b7\u30e7\u30f3\u306e\u7ba1\u7406\u3068\u8abf\u6574\u3092\u62c5\u5f53\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30c7\u30fc\u30bf\u4ea4\u63db\u304c\u79e9\u5e8f\u6b63\u3057\u304f\u540c\u671f\u3055\u308c\u305f\u65b9\u6cd5\u3067\u884c\u308f\u308c\u308b\u3088\u3046\u306b\u306a\u308a\u3001\u63a5\u7d9a\u60c5\u5831\u304c\u7dad\u6301\u3055\u308c\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u306e\u78ba\u7acb\u3001\u7dad\u6301\u3001\u7d42\u4e86\u304c\u51e6\u7406\u3055\u308c\u307e\u3059\u3002<\/p>\n<h2>\u30bb\u30c3\u30b7\u30e7\u30f3\u5c64\u306e\u8d77\u6e90\u3068\u305d\u306e\u6700\u521d\u306e\u8a00\u53ca\u306e\u6b74\u53f2<\/h2>\n<p>OSI \u30e2\u30c7\u30eb\u306e\u958b\u767a\u306f\u3001\u56fd\u969b\u6a19\u6e96\u5316\u6a5f\u69cb (ISO) \u304c\u3001\u7570\u306a\u308b\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc \u30b7\u30b9\u30c6\u30e0\u3068\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30d7\u30ed\u30c8\u30b3\u30eb\u9593\u306e\u30b7\u30fc\u30e0\u30ec\u30b9\u306a\u901a\u4fe1\u3092\u53ef\u80fd\u306b\u3059\u308b\u6a19\u6e96\u5316\u3055\u308c\u305f\u53c2\u7167\u30e2\u30c7\u30eb\u306e\u4f5c\u6210\u3092\u76ee\u7684\u3068\u3057\u305f 1970 \u5e74\u4ee3\u5f8c\u534a\u306b\u59cb\u307e\u308a\u307e\u3057\u305f\u3002\u30bb\u30c3\u30b7\u30e7\u30f3\u5c64\u306e\u6982\u5ff5\u306f\u3001\u3055\u307e\u3056\u307e\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3084\u30b5\u30fc\u30d3\u30b9\u306e\u30bb\u30c3\u30b7\u30e7\u30f3\u7ba1\u7406\u8981\u4ef6\u306b\u5bfe\u51e6\u3059\u308b\u3053\u3068\u3092\u76ee\u7684\u3068\u3057\u3066\u3001\u3053\u306e\u30e2\u30c7\u30eb\u306e\u958b\u767a\u4e2d\u306b\u767b\u5834\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>\u30bb\u30c3\u30b7\u30e7\u30f3\u5c64\u3092\u542b\u3080 OSI \u30e2\u30c7\u30eb\u306f\u30011984 \u5e74\u306e\u51fa\u7248\u7269\u300cISO 7498: \u60c5\u5831\u51e6\u7406\u30b7\u30b9\u30c6\u30e0 - \u30aa\u30fc\u30d7\u30f3 \u30b7\u30b9\u30c6\u30e0\u76f8\u4e92\u63a5\u7d9a - \u57fa\u672c\u53c2\u7167\u30e2\u30c7\u30eb\u300d\u3067\u521d\u3081\u3066\u6b63\u5f0f\u306b\u8aac\u660e\u3055\u308c\u307e\u3057\u305f\u3002\u3053\u306e\u6587\u66f8\u3067\u306f\u30017 \u5c64\u30e2\u30c7\u30eb\u306e\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u304c\u793a\u3055\u308c\u3066\u3044\u307e\u3059\u3002 5 \u756a\u76ee\u306e\u4f4d\u7f6e\u3092\u5360\u3081\u308b\u30bb\u30c3\u30b7\u30e7\u30f3\u5c64\u3002<\/p>\n<h2>\u30bb\u30c3\u30b7\u30e7\u30f3\u5c64\u306e\u8a73\u7d30\u60c5\u5831<\/h2>\n<p>\u30bb\u30c3\u30b7\u30e7\u30f3\u5c64\u306f\u3001OSI \u30e2\u30c7\u30eb\u306e\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64\u306e\u4e0a\u3001\u30d7\u30ec\u30bc\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u5c64\u306e\u4e0b\u3067\u52d5\u4f5c\u3057\u307e\u3059\u3002\u305d\u306e\u4e3b\u306a\u76ee\u7684\u306f\u30012 \u3064\u306e\u30a8\u30f3\u30c9\u30e6\u30fc\u30b6\u30fc \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u307e\u305f\u306f\u30d7\u30ed\u30bb\u30b9\u9593\u306e\u901a\u4fe1\u3068\u63a5\u7d9a\u7ba1\u7406\u3092\u5bb9\u6613\u306b\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u30bb\u30c3\u30b7\u30e7\u30f3\u5c64\u306f\u3001\u3053\u308c\u3089\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304c\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u9593\u306e\u8ad6\u7406\u63a5\u7d9a\u3067\u3042\u308b\u30bb\u30c3\u30b7\u30e7\u30f3\u3092\u78ba\u7acb\u3001\u7dad\u6301\u3001\u7d42\u4e86\u3067\u304d\u308b\u3053\u3068\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002<\/p>\n<p>\u30bb\u30c3\u30b7\u30e7\u30f3\u5c64\u306e\u4e3b\u306a\u6a5f\u80fd\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<ol>\n<li>\n<p><strong>\u30bb\u30c3\u30b7\u30e7\u30f3\u306e\u78ba\u7acb<\/strong>: 2 \u3064\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304c\u901a\u4fe1\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u5834\u5408\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u5c64\u306f\u30bb\u30c3\u30b7\u30e7\u30f3\u3092\u78ba\u7acb\u3057\u3066\u30c7\u30fc\u30bf\u306e\u4ea4\u63db\u3092\u8abf\u6574\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u95a2\u4fc2\u3059\u308b\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u9593\u306e\u30bb\u30c3\u30b7\u30e7\u30f3 \u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\u306e\u30cd\u30b4\u30b7\u30a8\u30fc\u30b7\u30e7\u30f3\u3068\u540c\u671f\u3092\u51e6\u7406\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30c7\u30fc\u30bf\u306e\u30bb\u30b0\u30e1\u30f3\u30c8\u5316\u3068\u518d\u69cb\u6210<\/strong>: \u30bb\u30c3\u30b7\u30e7\u30f3\u5c64\u306f\u3001\u9001\u4fe1\u5074\u3067\u30c7\u30fc\u30bf\u3092\u7ba1\u7406\u53ef\u80fd\u306a\u30bb\u30b0\u30e1\u30f3\u30c8\u306b\u5206\u5272\u3057\u3001\u53d7\u4fe1\u5074\u3067\u305d\u308c\u3089\u3092\u518d\u7d44\u307f\u7acb\u3066\u3057\u307e\u3059\u3002\u3053\u306e\u30bb\u30b0\u30e1\u30f3\u30c8\u5316\u306b\u3088\u308a\u3001\u5927\u91cf\u306e\u30c7\u30fc\u30bf\u3092\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e0a\u3067\u52b9\u7387\u7684\u306b\u9001\u4fe1\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30bb\u30c3\u30b7\u30e7\u30f3\u306e\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9<\/strong>: \u30bb\u30c3\u30b7\u30e7\u30f3\u4e2d\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u5c64\u306f\u63a5\u7d9a\u306e\u5065\u5168\u6027\u3068\u5b89\u5b9a\u6027\u3092\u76e3\u8996\u3059\u308b\u8cac\u4efb\u304c\u3042\u308a\u307e\u3059\u3002\u30bb\u30c3\u30b7\u30e7\u30f3\u306e\u6574\u5408\u6027\u3092\u7dad\u6301\u3057\u3001\u4e2d\u65ad\u304c\u767a\u751f\u3057\u305f\u5834\u5408\u306b\u306f\u30bb\u30c3\u30b7\u30e7\u30f3\u3092\u518d\u78ba\u7acb\u3059\u308b\u305f\u3081\u306b\u3001\u9069\u5207\u306a\u30a2\u30af\u30b7\u30e7\u30f3\u304c\u5b9f\u884c\u3055\u308c\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30bb\u30c3\u30b7\u30e7\u30f3\u306e\u7d42\u4e86<\/strong>: \u901a\u4fe1\u304c\u5b8c\u4e86\u3059\u308b\u304b\u3001\u3044\u305a\u308c\u304b\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u3088\u3063\u3066\u7d42\u4e86\u3055\u308c\u308b\u3068\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u5c64\u306f\u30bb\u30c3\u30b7\u30e7\u30f3\u3092\u9069\u5207\u306b\u7d42\u4e86\u3057\u3001\u5272\u308a\u5f53\u3066\u3089\u308c\u305f\u30ea\u30bd\u30fc\u30b9\u3092\u89e3\u653e\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>\u30bb\u30c3\u30b7\u30e7\u30f3\u5c64\u306e\u5185\u90e8\u69cb\u9020\u3002\u30bb\u30c3\u30b7\u30e7\u30f3\u5c64\u306e\u4ed5\u7d44\u307f\u3002<\/h2>\n<p>\u30bb\u30c3\u30b7\u30e7\u30f3\u5c64\u306f\u3001\u305d\u306e\u6a5f\u80fd\u3092\u52b9\u679c\u7684\u306b\u5b9f\u884c\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u3044\u304f\u3064\u304b\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u3068\u30e1\u30ab\u30cb\u30ba\u30e0\u3067\u69cb\u6210\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u30bb\u30c3\u30b7\u30e7\u30f3\u5c64\u306e\u4e3b\u306a\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306b\u306f\u6b21\u306e\u3082\u306e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ol>\n<li>\n<p><strong>\u30bb\u30c3\u30b7\u30e7\u30f3\u30d7\u30ed\u30c8\u30b3\u30eb<\/strong>: \u3053\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u306f\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u306e\u78ba\u7acb\u3001\u7dad\u6301\u3001\u7d42\u4e86\u3092\u5236\u5fa1\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u306b\u53c2\u52a0\u3057\u3066\u3044\u308b\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304c\u901a\u4fe1\u3092\u958b\u59cb\u3057\u3001\u30c7\u30fc\u30bf\u4ea4\u63db\u3092\u540c\u671f\u3057\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u95a2\u9023\u306e\u30a4\u30d9\u30f3\u30c8\u3092\u51e6\u7406\u3059\u308b\u65b9\u6cd5\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30bb\u30c3\u30b7\u30e7\u30f3 \u30c7\u30fc\u30bf \u30e6\u30cb\u30c3\u30c8 (SDU)<\/strong>: SDU \u306f\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u5c64\u3067\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u9593\u3067\u4ea4\u63db\u3055\u308c\u308b\u30c7\u30fc\u30bf\u306e\u584a\u3067\u3059\u3002\u30bb\u30c3\u30b7\u30e7\u30f3\u5c64\u306f\u3001\u4e0a\u4f4d\u5c64\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304b\u3089\u53d7\u4fe1\u3057\u305f\u30c7\u30fc\u30bf\u3092 SDU \u306b\u5206\u5272\u3057\u3001\u3055\u3089\u306a\u308b\u51e6\u7406\u306e\u305f\u3081\u306b\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64\u306b\u8ee2\u9001\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30bb\u30c3\u30b7\u30e7\u30f3\u306e\u8b58\u5225<\/strong>: \u5404\u30bb\u30c3\u30b7\u30e7\u30f3\u306f\u30bb\u30c3\u30b7\u30e7\u30f3 ID \u306b\u3088\u3063\u3066\u4e00\u610f\u306b\u8b58\u5225\u3055\u308c\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u3092\u5225\u306e\u30bb\u30c3\u30b7\u30e7\u30f3\u304b\u3089\u533a\u5225\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002\u30bb\u30c3\u30b7\u30e7\u30f3\u5c64\u306f\u3053\u306e ID \u3092\u4f7f\u7528\u3057\u3066\u3001\u9032\u884c\u4e2d\u306e\u8907\u6570\u306e\u30bb\u30c3\u30b7\u30e7\u30f3\u3092\u7ba1\u7406\u3057\u3001\u30c7\u30fc\u30bf\u304c\u6b63\u3057\u3044\u5b9b\u5148\u306b\u5230\u9054\u3059\u308b\u3053\u3068\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>\u30bb\u30c3\u30b7\u30e7\u30f3\u5c64\u306e\u4e3b\u8981\u306a\u6a5f\u80fd\u306e\u5206\u6790<\/h2>\n<p>\u30bb\u30c3\u30b7\u30e7\u30f3\u5c64\u306f\u3001\u52b9\u7387\u7684\u306a\u901a\u4fe1\u3068\u63a5\u7d9a\u7ba1\u7406\u306b\u8ca2\u732e\u3059\u308b\u3044\u304f\u3064\u304b\u306e\u91cd\u8981\u306a\u6a5f\u80fd\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/p>\n<ol>\n<li>\n<p><strong>\u540c\u671f<\/strong>: \u30bb\u30c3\u30b7\u30e7\u30f3\u5c64\u306f\u3001\u30c7\u30fc\u30bf\u4ea4\u63db\u4e2d\u306b\u9001\u4fe1\u8005\u3068\u53d7\u4fe1\u8005\u306e\u4e21\u65b9\u304c\u540c\u671f\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002\u540c\u671f\u30dd\u30a4\u30f3\u30c8\u3092\u7ba1\u7406\u3057\u3066\u3001\u30c7\u30fc\u30bf\u306e\u9069\u5207\u306a\u9806\u5e8f\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u63a5\u7d9a\u6307\u5411\u306e\u30b3\u30df\u30e5\u30cb\u30b1\u30fc\u30b7\u30e7\u30f3<\/strong>: \u30bb\u30c3\u30b7\u30e7\u30f3\u5c64\u306f\u3001\u30c7\u30fc\u30bf\u8ee2\u9001\u306e\u524d\u306b\u8ad6\u7406\u63a5\u7d9a\u307e\u305f\u306f\u30bb\u30c3\u30b7\u30e7\u30f3\u3092\u78ba\u7acb\u3057\u3001\u4fe1\u983c\u6027\u304c\u9ad8\u304f\u79e9\u5e8f\u3042\u308b\u30c7\u30fc\u30bf\u4ea4\u63db\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30a8\u30e9\u30fc\u51e6\u7406<\/strong>: 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\u3064\u306e\u5c64\u3001\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64\u3068\u30d7\u30ec\u30bc\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u5c64\u3068\u6bd4\u8f03\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u57fa\u6e96<\/th>\n<th>\u30bb\u30c3\u30b7\u30e7\u30f3\u5c64<\/th>\n<th>\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64<\/th>\n<th>\u30d7\u30ec\u30bc\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u5c64<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u30ec\u30a4\u30e4\u756a\u53f7<\/td>\n<td>5\u4f4d<\/td>\n<td>4\u4f4d<\/td>\n<td>6\u4f4d<\/td>\n<\/tr>\n<tr>\n<td>\u95a2\u6570<\/td>\n<td>\u30bb\u30c3\u30b7\u30e7\u30f3\u306e\u7ba1\u7406\u3068\u8abf\u6574<\/td>\n<td>\u30a8\u30f3\u30c9\u30c4\u30fc\u30a8\u30f3\u30c9\u306e\u30c7\u30fc\u30bf\u914d\u4fe1\u3092\u7ba1\u7406\u3057\u307e\u3059<\/td>\n<td>\u30c7\u30fc\u30bf\u306e\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3068\u6697\u53f7\u5316<\/td>\n<\/tr>\n<tr>\n<td>\u30c7\u30fc\u30bf\u30e6\u30cb\u30c3\u30c8<\/td>\n<td>\u30bb\u30c3\u30b7\u30e7\u30f3\u30c7\u30fc\u30bf\u30e6\u30cb\u30c3\u30c8\uff08SDU\uff09<\/td>\n<td>\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8 \u30d7\u30ed\u30c8\u30b3\u30eb \u30c7\u30fc\u30bf \u30e6\u30cb\u30c3\u30c8 (TPDU)<\/td>\n<td>\u30d7\u30ec\u30bc\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u30d7\u30ed\u30c8\u30b3\u30eb\u30c7\u30fc\u30bf\u30e6\u30cb\u30c3\u30c8<\/td>\n<\/tr>\n<tr>\n<td>\u63a5\u7d9a\u306e\u78ba\u7acb<\/td>\n<td>\u30bb\u30c3\u30b7\u30e7\u30f3\u3092\u78ba\u7acb\u3057\u307e\u3059<\/td>\n<td>\u63a5\u7d9a\u3092\u78ba\u7acb\u3057\u307e\u3059<\/td>\n<td>\u9069\u7528\u3067\u304d\u306a\u3044<\/td>\n<\/tr>\n<tr>\n<td>\u30a8\u30e9\u30fc\u51e6\u7406<\/td>\n<td>\u30bb\u30c3\u30b7\u30e7\u30f3\u95a2\u9023\u306e\u30a8\u30e9\u30fc\u3092\u51e6\u7406\u3057\u307e\u3059<\/td>\n<td>\u30c7\u30fc\u30bf\u8ee2\u9001\u30a8\u30e9\u30fc\u3092\u51e6\u7406\u3057\u307e\u3059<\/td>\n<td>\u9069\u7528\u3067\u304d\u306a\u3044<\/td>\n<\/tr>\n<tr>\n<td>\u30c7\u30fc\u30bf\u306e\u30bb\u30b0\u30e1\u30f3\u30c8\u5316<\/td>\n<td>\u30bb\u30c3\u30b7\u30e7\u30f3\u30ec\u30d9\u30eb\u3067\u30c7\u30fc\u30bf\u3092\u30bb\u30b0\u30e1\u30f3\u30c8\u5316\u3059\u308b<\/td>\n<td>\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u30ec\u30d9\u30eb\u3067\u306e\u30c7\u30fc\u30bf\u306e\u30bb\u30b0\u30e1\u30f3\u30c8\u5316<\/td>\n<td>\u9069\u7528\u3067\u304d\u306a\u3044<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u30bb\u30c3\u30b7\u30e7\u30f3\u5c64\u306b\u95a2\u3059\u308b\u5c06\u6765\u306e\u5c55\u671b\u3068\u6280\u8853<\/h2>\n<p>\u30c6\u30af\u30ce\u30ed\u30b8\u30fc\u304c\u9032\u5316\u3057\u7d9a\u3051\u308b\u306b\u3064\u308c\u3066\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u5c64\u306f\u65b0\u3057\u3044\u901a\u4fe1\u30d1\u30e9\u30c0\u30a4\u30e0\u3068\u8ab2\u984c\u306b\u5bfe\u5fdc\u3059\u308b\u305f\u3081\u306e\u9032\u6b69\u3068\u5909\u5316\u3092\u76ee\u6483\u3059\u308b\u3053\u3068\u306b\u306a\u308b\u3067\u3057\u3087\u3046\u3002\u5c06\u6765\u306e\u767a\u5c55\u306e\u53ef\u80fd\u6027\u3068\u3057\u3066\u306f\u6b21\u306e\u3088\u3046\u306a\u3082\u306e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ol>\n<li>\n<p><strong>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u306e\u5f37\u5316<\/strong>: \u5b89\u5168\u306a\u901a\u4fe1\u306e\u5fc5\u8981\u6027\u304c\u9ad8\u307e\u308b\u306b\u3064\u308c\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u5c64\u306b\u306f\u3001\u65b0\u305f\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u8105\u5a01\u306b\u5bfe\u6297\u3059\u308b\u305f\u3081\u306b\u3001\u3088\u308a\u9ad8\u5ea6\u306a\u6697\u53f7\u5316\u304a\u3088\u3073\u8a8d\u8a3c\u65b9\u6cd5\u304c\u7d44\u307f\u8fbc\u307e\u308c\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>5G\u3068\u305d\u306e\u5148\u3078<\/strong>: 5G \u3068\u5c06\u6765\u4e16\u4ee3\u306e\u30ef\u30a4\u30e4\u30ec\u30b9 \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u51fa\u73fe\u306b\u3088\u308a\u3001\u5927\u91cf\u306e\u30c7\u30fc\u30bf\u306e\u6d41\u5165\u3068\u63a5\u7d9a\u3055\u308c\u305f\u30c7\u30d0\u30a4\u30b9\u3092\u51e6\u7406\u3059\u308b\u305f\u3081\u306e\u3001\u3088\u308a\u52b9\u7387\u7684\u306a\u30bb\u30c3\u30b7\u30e7\u30f3\u7ba1\u7406\u6280\u8853\u304c\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>IoT\u3068\u30a8\u30c3\u30b8\u30b3\u30f3\u30d4\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0<\/strong>: \u30e2\u30ce\u306e\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8 (IoT) \u3068\u30a8\u30c3\u30b8 \u30b3\u30f3\u30d4\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u304c\u53f0\u982d\u3059\u308b\u306b\u3064\u308c\u3066\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u5c64\u306f IoT \u30c7\u30d0\u30a4\u30b9\u306e\u56fa\u6709\u306e\u8981\u4ef6\u3068\u305d\u306e\u901a\u4fe1\u30cb\u30fc\u30ba\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u3088\u3046\u306b\u9069\u5fdc\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u3092\u4f7f\u7528\u3059\u308b\u65b9\u6cd5\u3001\u307e\u305f\u306f\u30bb\u30c3\u30b7\u30e7\u30f3 \u30ec\u30a4\u30e4\u30fc\u306b\u95a2\u9023\u4ed8\u3051\u308b\u65b9\u6cd5<\/h2>\n<p>\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u901a\u4fe1\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3001\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5f37\u5316\u3059\u308b\u4e0a\u3067\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306f\u3001\u6b21\u306e\u65b9\u6cd5\u3067\u30bb\u30c3\u30b7\u30e7\u30f3 \u30ec\u30a4\u30e4\u30fc\u306b\u95a2\u9023\u4ed8\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<ol>\n<li>\n<p><strong>\u30bb\u30c3\u30b7\u30e7\u30f3\u7ba1\u7406<\/strong>: \u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3068\u30b5\u30fc\u30d0\u30fc\u306b\u4ee3\u308f\u3063\u3066\u30bb\u30c3\u30b7\u30e7\u30f3\u3092\u7ba1\u7406\u3057\u3001\u63a5\u7d9a\u306e\u4fe1\u983c\u6027\u3092\u5411\u4e0a\u3055\u305b\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u95a2\u9023\u306e\u30bf\u30b9\u30af\u3092\u51e6\u7406\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b7\u30f3\u30b0<\/strong>: \u30d7\u30ed\u30ad\u30b7\u306f\u3001\u53d7\u4fe1\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u8907\u6570\u306e\u30b5\u30fc\u30d0\u30fc\u306b\u5206\u6563\u3057\u3001\u8ca0\u8377\u3092\u52b9\u679c\u7684\u306b\u5206\u6563\u3057\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u6700\u9069\u5316\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30ad\u30e3\u30c3\u30b7\u30f3\u30b0<\/strong>: \u30d7\u30ed\u30ad\u30b7\u306f\u983b\u7e41\u306b\u30a2\u30af\u30bb\u30b9\u3055\u308c\u308b\u30c7\u30fc\u30bf\u3092\u4fdd\u5b58\u3067\u304d\u308b\u305f\u3081\u3001\u7e70\u308a\u8fd4\u3057\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u5fc5\u8981\u6027\u304c\u6e1b\u308a\u3001\u30bb\u30c3\u30b7\u30e7\u30f3 \u30c7\u30fc\u30bf\u306e\u914d\u4fe1\u304c\u9ad8\u901f\u5316\u3055\u308c\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u533f\u540d<\/strong>: \u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3068\u30b5\u30fc\u30d0\u30fc\u306e\u9593\u306e\u4ef2\u4ecb\u8005\u3068\u3057\u3066\u6a5f\u80fd\u3057\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u4e2d\u306e\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306e\u533f\u540d\u6027\u3092\u7dad\u6301\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>\u95a2\u9023\u30ea\u30f3\u30af<\/h2>\n<p>\u30bb\u30c3\u30b7\u30e7\u30f3\u5c64\u3068\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u304a\u3051\u308b\u305d\u306e\u5f79\u5272\u306e\u8a73\u7d30\u306b\u3064\u3044\u3066\u306f\u3001\u6b21\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<ol>\n<li><a href=\"https:\/\/www.geeksforgeeks.org\/layers-of-osi-model\/\" target=\"_new\" rel=\"noopener nofollow\">OSI\u30e2\u30c7\u30eb\u306e\u6982\u8981<\/a><\/li>\n<li><a href=\"https:\/\/www.iso.org\/standard\/17691.html\" target=\"_new\" rel=\"noopener nofollow\">ISO\/IEC 7498-1:1994 \u2013 \u60c5\u5831\u6280\u8853 \u2013 \u30aa\u30fc\u30d7\u30f3 \u30b7\u30b9\u30c6\u30e0\u76f8\u4e92\u63a5\u7d9a \u2013 \u57fa\u672c\u53c2\u7167\u30e2\u30c7\u30eb: \u57fa\u672c\u30e2\u30c7\u30eb<\/a><\/li>\n<li><a href=\"https:\/\/www.cloudflare.com\/learning\/cdn\/glossary\/proxy-server\/\" target=\"_new\" rel=\"noopener nofollow\">\u30d7\u30ed\u30ad\u30b7\u30b5\u30fc\u30d0\u30fc\u306b\u3064\u3044\u3066<\/a><\/li>\n<\/ol>\n<p>\u7d50\u8ad6\u3068\u3057\u3066\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u5c64\u306f\u901a\u4fe1\u30bb\u30c3\u30b7\u30e7\u30f3\u3092\u7ba1\u7406\u3057\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u307e\u305f\u306f\u30c7\u30d0\u30a4\u30b9\u9593\u3067\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u30c7\u30fc\u30bf\u4ea4\u63db\u3092\u4fdd\u8a3c\u3059\u308b\u4e0a\u3067\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002\u30bb\u30c3\u30b7\u30e7\u30f3\u306e\u78ba\u7acb\u3001\u540c\u671f\u3001\u30a8\u30e9\u30fc\u51e6\u7406\u306a\u3069\u306e\u6a5f\u80fd\u306f\u3001\u52b9\u7387\u7684\u3067\u5b89\u5168\u306a\u30c7\u30fc\u30bf\u9001\u4fe1\u306b\u4e0d\u53ef\u6b20\u3067\u3059\u3002\u30c6\u30af\u30ce\u30ed\u30b8\u30fc\u306e\u9032\u6b69\u306b\u4f34\u3044\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u5c64\u306f\u9032\u5316\u3092\u7d9a\u3051\u3001\u901a\u4fe1\u30c6\u30af\u30ce\u30ed\u30b8\u30fc\u306e\u72b6\u6cc1\u306e\u5909\u5316\u3084\u73fe\u4ee3\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30ad\u30f3\u30b0\u74b0\u5883\u306e\u9700\u8981\u306b\u9069\u5fdc\u3057\u3066\u3044\u304d\u307e\u3059\u3002\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u306e\u7ba1\u7406\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u5f37\u5316\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u6700\u9069\u5316\u306e\u6a5f\u80fd\u3092\u5099\u3048\u3066\u304a\u308a\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u5c64\u306e\u6a5f\u80fd\u3092\u88dc\u5b8c\u3057\u3001\u4eca\u65e5\u306e\u76f8\u4e92\u63a5\u7d9a\u3055\u308c\u305f\u4e16\u754c\u3067\u306f\u8cb4\u91cd\u306a\u8cc7\u7523\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>","protected":false},"featured_media":478963,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-478962","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>Session Layer: Facilitating Communication and Connection Management<\/mark>","faq_items":[{"question":"What is the Session layer?","answer":"<p>The Session layer is a crucial component of the OSI model, responsible for managing and coordinating sessions between communicating applications or devices. It ensures orderly and synchronized data exchange, handling session establishment, maintenance, and termination.<\/p>"},{"question":"How did the Session layer originate?","answer":"<p>The Session layer was conceptualized during the development of the OSI model in the late 1970s. It was first formally described in the publication \"ISO 7498: Information processing systems - Open Systems Interconnection - Basic Reference Model\" in 1984.<\/p>"},{"question":"What are the key functions of the Session layer?","answer":"<p>The Session layer's primary functions include session establishment, data segmentation and reassembly, session maintenance, and session termination.<\/p>"},{"question":"How does the Session layer work internally?","answer":"<p>The Session layer consists of a session protocol, session data units (SDUs), and session identification mechanisms to facilitate proper data exchange and connection management.<\/p>"},{"question":"What are the types of Session layers?","answer":"<p>There are two main types of Session layers: connection-oriented and connectionless. The former establishes a connection before data transfer, while the latter does not.<\/p>"},{"question":"Where is the Session layer used?","answer":"<p>The Session layer finds application in various scenarios, such as web browsing, video conferencing, and file transfer.<\/p>"},{"question":"What are some common problems related to the Session layer?","answer":"<p>Common issues with the Session layer include session timeouts and session hijacking. Solutions include implementing keep-alive mechanisms and secure session management practices.<\/p>"},{"question":"How does the Session layer compare to the Transport and Presentation layers?","answer":"<p>The Session layer is responsible for managing sessions between applications, while the Transport layer handles end-to-end data delivery, and the Presentation layer deals with data formatting and encryption.<\/p>"},{"question":"What are the future perspectives of the Session layer?","answer":"<p>In the future, the Session layer may see advancements in security measures, adaptation to 5G and beyond, and support for IoT and edge computing.<\/p>"},{"question":"How are proxy servers associated with the Session layer?","answer":"<p>Proxy servers can manage sessions, perform load balancing, caching, and preserve client anonymity, making them valuable assets in conjunction with the Session layer.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/wiki\/478962","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\/478962\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/media\/478963"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/media?parent=478962"}],"curies":[{"name":"\u3046\u30fc\u3093","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}