{"id":4640,"date":"2026-03-14T14:27:31","date_gmt":"2026-03-14T06:27:31","guid":{"rendered":"https:\/\/www.newsunn.com\/understanding-protocol-data-units-importance\/"},"modified":"2026-03-14T14:27:31","modified_gmt":"2026-03-14T06:27:31","slug":"understanding-protocol-data-units-importance","status":"publish","type":"post","link":"https:\/\/www.newsunn.com\/ja\/understanding-protocol-data-units-importance\/","title":{"rendered":"\u30d7\u30ed\u30c8\u30b3\u30eb \u30c7\u30fc\u30bf\u5358\u4f4d\u3068\u305d\u306e\u91cd\u8981\u6027\u306b\u3064\u3044\u3066\u306e\u30c8\u30c3\u30d7 5"},"content":{"rendered":"<p><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/statics.mylandingpages.co\/static\/aaanxdmf26c522mpaaaaz2wwe7ppkact\/image\/f368ce6db20246338a7b90598659fb55.webp\" alt=\"\u30d7\u30ed\u30c8\u30b3\u30eb \u30c7\u30fc\u30bf\u5358\u4f4d\u3068\u305d\u306e\u91cd\u8981\u6027\u306b\u3064\u3044\u3066\u306e\u30c8\u30c3\u30d7 5\" \/><\/p>\n<p><\/p>\n<p>\u30d7\u30ed\u30c8\u30b3\u30eb \u30c7\u30fc\u30bf \u30e6\u30cb\u30c3\u30c8 (PDU) \u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u304a\u3044\u3066\u4e0d\u53ef\u6b20\u306a\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3067\u3059\u3002\u3053\u308c\u3089\u306f\u30c7\u30fc\u30bf\u901a\u4fe1\u306e\u69cb\u6210\u8981\u7d20\u3068\u3057\u3066\u6a5f\u80fd\u3057\u3001\u30c7\u30d0\u30a4\u30b9\u304c\u52b9\u7387\u7684\u306b\u60c5\u5831\u3092\u4ea4\u63db\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002\u3042 <a href=\"https:\/\/www.newsunnpdu.com\/products\/\" target=\"_blank\" rel=\"noopener\">\u57fa\u672c\u7684\u306aPDU<\/a> \u91cd\u8981\u306a\u5236\u5fa1\u60c5\u5831\u3092\u542b\u3080\u30c7\u30fc\u30bf\u3092\u30ab\u30d7\u30bb\u30eb\u5316\u3057\u3001OSI \u30e2\u30c7\u30eb\u306e\u3055\u307e\u3056\u307e\u306a\u5c64\u306b\u308f\u305f\u308b\u4f53\u7cfb\u7684\u306a\u51e6\u7406\u3092\u53ef\u80fd\u306b\u3057\u307e\u3059\u3002\u3053\u306e\u69cb\u9020\u306b\u3088\u308a\u3001\u30c7\u30fc\u30bf\u306e\u5b8c\u5168\u6027\u304c\u4fdd\u8a3c\u3055\u308c\u308b\u3060\u3051\u3067\u306a\u304f\u3001\u901a\u4fe1\u306e\u4fe1\u983c\u6027\u3082\u5411\u4e0a\u3057\u307e\u3059\u3002<\/p>\n<p><\/p>\n<p>An <a href=\"https:\/\/www.newsunnpdu.com\/products\/\" target=\"_blank\" rel=\"noopener\">\u30a4\u30f3\u30c6\u30ea\u30b8\u30a7\u30f3\u30c8PDU<\/a> \u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u3088\u308a\u9069\u5207\u306a\u7ba1\u7406\u3068\u76e3\u8996\u3092\u5bb9\u6613\u306b\u3059\u308b\u9ad8\u5ea6\u306a\u6a5f\u80fd\u3092\u7d44\u307f\u8fbc\u3080\u3053\u3068\u3067\u3001\u3053\u308c\u3092\u3055\u3089\u306b\u4e00\u6b69\u9032\u3081\u307e\u3059\u3002 PDU \u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u5c02\u9580\u5bb6\u306b\u3068\u3063\u3066\u3082\u611b\u597d\u5bb6\u306b\u3068\u3063\u3066\u3082\u540c\u69d8\u306b\u91cd\u8981\u3067\u3059\u3002\u554f\u984c\u306e\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u884c\u3046\u5834\u5408\u3067\u3082\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u8a2d\u8a08\u3092\u884c\u3046\u5834\u5408\u3067\u3082\u3001\u30d9\u30fc\u30b7\u30c3\u30af PDU \u3068\u30a4\u30f3\u30c6\u30ea\u30b8\u30a7\u30f3\u30c8 PDU \u306e\u4e21\u65b9\u306e\u77e5\u8b58\u306f\u3001\u30c7\u30fc\u30bf\u4f1d\u9001\u306e\u8907\u96d1\u3055\u3092\u52b9\u679c\u7684\u306b\u5bfe\u51e6\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n<p><\/p>\n<h2>\u30ad\u30fc\u30c6\u30a4\u30af\u30a2\u30a6\u30c8<\/h2>\n<p><\/p>\n<ul><\/p>\n<li>\u30d7\u30ed\u30c8\u30b3\u30eb \u30c7\u30fc\u30bf \u30e6\u30cb\u30c3\u30c8 (PDU) \u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30ad\u30f3\u30b0\u306b\u304a\u3051\u308b\u52b9\u679c\u7684\u306a\u30c7\u30fc\u30bf\u901a\u4fe1\u306b\u4e0d\u53ef\u6b20\u3067\u3059\u3002<\/li>\n<p><\/p>\n<li>OSI \u304a\u3088\u3073 TCP\/IP \u30e2\u30c7\u30eb\u306e\u5404\u5c64\u306f\u3001\u30c7\u30fc\u30bf\u3001\u30bb\u30b0\u30e1\u30f3\u30c8\u3001\u30d1\u30b1\u30c3\u30c8\u3001\u30d5\u30ec\u30fc\u30e0\u306a\u3069\u3001\u3055\u307e\u3056\u307e\u306a\u30bf\u30a4\u30d7\u306e PDU \u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/li>\n<p><\/p>\n<li><a href=\"https:\/\/www.newsunnpdu.com\/news\/top10-things-to-know-about-pdu-meaning-in-2025\/\" target=\"_blank\" rel=\"noopener\">PDU \u306b\u3064\u3044\u3066\u7406\u89e3\u3059\u308b<\/a> \u4fe1\u983c\u6027\u306e\u9ad8\u3044\u30c7\u30fc\u30bf\u4f1d\u9001\u3092\u78ba\u4fdd\u3057\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5411\u4e0a\u3055\u305b\u307e\u3059\u3002<\/li>\n<p><\/p>\n<li>\u30ab\u30d7\u30bb\u30eb\u5316\u3068\u30ab\u30d7\u30bb\u30eb\u5316\u89e3\u9664\u306e\u30d7\u30ed\u30bb\u30b9\u306f\u3001\u9001\u4fe1\u7528\u306e\u30c7\u30fc\u30bf\u3092\u6e96\u5099\u3057\u3001\u6b63\u78ba\u306b\u53d6\u5f97\u3059\u308b\u305f\u3081\u306b\u91cd\u8981\u3067\u3059\u3002<\/li>\n<p><\/p>\n<li>PDU \u306b\u306f\u3001\u5236\u5fa1\u60c5\u5831\u3092\u63d0\u4f9b\u3059\u308b\u30d8\u30c3\u30c0\u30fc\u3068\u30c8\u30ec\u30fc\u30e9\u30fc\u304c\u542b\u307e\u308c\u3066\u304a\u308a\u3001\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u3068\u30a8\u30e9\u30fc\u691c\u51fa\u304c\u4fdd\u8a3c\u3055\u308c\u307e\u3059\u3002<\/li>\n<p><\/p>\n<li>PDU \u306e\u30b5\u30a4\u30ba\u304c\u9069\u5207\u3067\u3042\u308b\u3068\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u52b9\u7387\u304c\u5411\u4e0a\u3057\u307e\u3059\u304c\u3001PDU \u306e\u30b5\u30a4\u30ba\u304c\u9069\u5207\u3067\u306a\u3044\u3068\u9045\u5ef6\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<p><\/p>\n<li>PDU \u306e\u77e5\u8b58\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u3068\u8a2d\u8a08\u3092\u52b9\u679c\u7684\u306b\u884c\u3046\u305f\u3081\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/li>\n<p><\/p>\n<li>\u5b9f\u8df5\u7684\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30ad\u30f3\u30b0 \u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u53d6\u308a\u7d44\u3080\u3053\u3068\u3067\u3001PDU \u3068\u305d\u306e\u91cd\u8981\u6027\u306b\u3064\u3044\u3066\u306e\u7406\u89e3\u304c\u6df1\u307e\u308b\u3067\u3057\u3087\u3046\u3002<\/li>\n<p><\/ul>\n<p><\/p>\n<h2>\u30d7\u30ed\u30c8\u30b3\u30eb\u30c7\u30fc\u30bf\u30e6\u30cb\u30c3\u30c8\u3068\u306f\u4f55\u3067\u3059\u304b?<\/h2>\n<p><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/statics.mylandingpages.co\/static\/aaanxdmf26c522mpaaaaz2wwe7ppkact\/image\/4ea58e21243341df87b42be956e59aee.webp\" alt=\"\u30d7\u30ed\u30c8\u30b3\u30eb\u30c7\u30fc\u30bf\u30e6\u30cb\u30c3\u30c8\u3068\u306f\u4f55\u3067\u3059\u304b?\" \/><\/p>\n<p><\/p>\n<h3>\u30d7\u30ed\u30c8\u30b3\u30eb\u30c7\u30fc\u30bf\u30e6\u30cb\u30c3\u30c8\u306e\u5b9a\u7fa9<\/h3>\n<p><\/p>\n<p>A <a href=\"https:\/\/www.newsunnpdu.com\/products\/\" target=\"_blank\" rel=\"noopener\">\u30d7\u30ed\u30c8\u30b3\u30eb\u30c7\u30fc\u30bf\u30e6\u30cb\u30c3\u30c8<\/a> (<a href=\"https:\/\/www.newsunnpdu.com\/products\/\" target=\"_blank\" rel=\"noopener\">PDU<\/a>) \u306f\u3001\u7279\u5b9a\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u4f7f\u7528\u3057\u3066\u901a\u4fe1\u3059\u308b\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u9593\u306e\u4ea4\u63db\u306e\u57fa\u672c\u5358\u4f4d\u3068\u3057\u3066\u6a5f\u80fd\u3057\u307e\u3059\u3002\u3053\u306e\u5b9a\u7fa9\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u9593\u306e\u30c7\u30fc\u30bf\u4ea4\u63db\u3092\u4fc3\u9032\u3059\u308b\u4e0a\u3067 PDU \u304c\u679c\u305f\u3059\u91cd\u8981\u306a\u5f79\u5272\u3092\u5f37\u8abf\u3057\u3066\u3044\u307e\u3059\u3002\u30c7\u30fc\u30bf\u3068\u5236\u5fa1\u60c5\u5831\u306e\u4e21\u65b9\u3092\u30ab\u30d7\u30bb\u30eb\u5316\u3057\u3001\u52b9\u7387\u7684\u306a\u901a\u4fe1\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002\u4ed6\u306e\u30c7\u30fc\u30bf\u69cb\u9020\u3068\u306f\u7570\u306a\u308a\u3001PDU \u306f\u5236\u5fa1\u60c5\u5831\u3092\u542b\u3080\u30d8\u30c3\u30c0\u30fc\u307e\u305f\u306f\u30c8\u30ec\u30fc\u30e9\u30fc\u3092\u542b\u3081\u308b\u3088\u3046\u306b\u7279\u5225\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u69cb\u9020\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u9593\u3067\u30c7\u30fc\u30bf\u3092\u78ba\u5b9f\u306b\u9001\u4fe1\u3059\u308b\u305f\u3081\u306b\u4e0d\u53ef\u6b20\u3067\u3059\u3002<\/p>\n<p><\/p>\n<h3>Types of Protocol Data Units<\/h3>\n<p><\/p>\n<p>\u9055\u3044\u3092\u7406\u89e3\u3059\u308b <a href=\"https:\/\/www.newsunnpdu.com\/news\/top10-things-to-know-about-pdu-meaning-in-2025\/\" target=\"_blank\" rel=\"noopener\">\u30d7\u30ed\u30c8\u30b3\u30eb\u30c7\u30fc\u30bf\u30e6\u30cb\u30c3\u30c8\u306e\u7a2e\u985e<\/a> \u30c7\u30fc\u30bf\u304c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u3055\u307e\u3056\u307e\u306a\u5c64\u3092\u3069\u306e\u3088\u3046\u306b\u901a\u904e\u3059\u308b\u304b\u3092\u660e\u78ba\u306b\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002\u4e3b\u306a\u7a2e\u985e\u306e\u5185\u8a33\u306f\u3053\u3061\u3089:<\/p>\n<p><\/p>\n<h4>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5c64\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u30c7\u30fc\u30bf\u5358\u4f4d<\/h4>\n<p><\/p>\n<p>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5c64 PDU (\u30e1\u30c3\u30bb\u30fc\u30b8\u3068\u3082\u547c\u3070\u308c\u307e\u3059) \u306f\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u3088\u3063\u3066\u751f\u6210\u3055\u308c\u305f\u30c7\u30fc\u30bf\u3092\u30ab\u30d7\u30bb\u30eb\u5316\u3057\u307e\u3059\u3002\u30d5\u30a1\u30a4\u30eb\u8ee2\u9001\u3001Web \u30d6\u30e9\u30a6\u30b8\u30f3\u30b0\u3001\u96fb\u5b50\u30e1\u30fc\u30eb\u901a\u4fe1\u306a\u3069\u306e\u30bf\u30b9\u30af\u3092\u5bb9\u6613\u306b\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306e PDU \u306b\u3088\u308a\u3001\u3042\u308b\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304b\u3089\u9001\u4fe1\u3055\u308c\u305f\u30c7\u30fc\u30bf\u304c\u5225\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u6b63\u3057\u304f\u5230\u9054\u3059\u308b\u3053\u3068\u304c\u4fdd\u8a3c\u3055\u308c\u307e\u3059\u3002<\/p>\n<p><\/p>\n<h4>\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u30c7\u30fc\u30bf\u30e6\u30cb\u30c3\u30c8<\/h4>\n<p><\/p>\n<p>\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64 PDU \u306b\u306f\u3001TCP \u30bb\u30b0\u30e1\u30f3\u30c8\u3068 UDP \u30c7\u30fc\u30bf\u30b0\u30e9\u30e0\u306e 2 \u3064\u306e\u5f62\u5f0f\u304c\u3042\u308a\u307e\u3059\u3002 TCP \u30bb\u30b0\u30e1\u30f3\u30c8\u306f\u4fe1\u983c\u6027\u3068\u9806\u5e8f\u3092\u4fdd\u8a3c\u3059\u308b\u305f\u3081\u3001\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u304c\u91cd\u8981\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u6700\u9069\u3067\u3059\u3002\u4e00\u65b9\u3001UDP \u30c7\u30fc\u30bf\u30b0\u30e9\u30e0\u306f\u4fe1\u983c\u6027\u3088\u308a\u3082\u901f\u5ea6\u3092\u512a\u5148\u3059\u308b\u305f\u3081\u3001\u5b8c\u74a7\u306a\u7cbe\u5ea6\u3088\u308a\u3082\u901f\u5ea6\u304c\u91cd\u8981\u306a\u30d3\u30c7\u30aa \u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u3084\u30aa\u30f3\u30e9\u30a4\u30f3 \u30b2\u30fc\u30e0\u306a\u3069\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><\/p>\n<table><\/p>\n<thead><\/p>\n<tr><\/p>\n<th>\u7279\u5fb4<\/th>\n<p><\/p>\n<th>TCP Segment<\/th>\n<p><\/p>\n<th>UDP Datagram<\/th>\n<p><\/tr>\n<p><\/thead>\n<p><\/p>\n<tbody><\/p>\n<tr><\/p>\n<td>\u4fe1\u983c\u6027<\/td>\n<p><\/p>\n<td>Guarantees data integrity<\/td>\n<p><\/p>\n<td>No guarantees, potential data loss<\/td>\n<p><\/tr>\n<p><\/p>\n<tr><\/p>\n<td>Order<\/td>\n<p><\/p>\n<td>Ensures data is received in order<\/td>\n<p><\/p>\n<td>No order guarantee<\/td>\n<p><\/tr>\n<p><\/p>\n<tr><\/p>\n<td>Error Checking<\/td>\n<p><\/p>\n<td>Robust error checking with checksums<\/td>\n<p><\/p>\n<td>Minimal error checking<\/td>\n<p><\/tr>\n<p><\/p>\n<tr><\/p>\n<td>Connection Orientation<\/td>\n<p><\/p>\n<td>Connection-oriented<\/td>\n<p><\/p>\n<td>Connectionless<\/td>\n<p><\/tr>\n<p><\/p>\n<tr><\/p>\n<td>\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9<\/td>\n<p><\/p>\n<td>Higher due to error recovery<\/td>\n<p><\/p>\n<td>Lower due to lack of reliability checks<\/td>\n<p><\/tr>\n<p><\/tbody>\n<p><\/table>\n<p><\/p>\n<h4>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u30c7\u30fc\u30bf\u5358\u4f4d<\/h4>\n<p><\/p>\n<p>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64 PDU \u306f\u4e3b\u306b IP \u30d1\u30b1\u30c3\u30c8\u306b\u3088\u3063\u3066\u8868\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30d1\u30b1\u30c3\u30c8\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5168\u4f53\u3067\u30c7\u30fc\u30bf\u3092\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3059\u308b\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30d1\u30b1\u30c3\u30c8\u306e\u30b5\u30a4\u30ba\u306f\u3001\u7279\u306b IPv4 \u3068 IPv6 \u306e\u9593\u3067\u7570\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u3067\u306e\u30c7\u30fc\u30bf\u306e\u9001\u4fe1\u65b9\u6cd5\u306b\u5f71\u97ff\u3057\u307e\u3059\u3002<\/p>\n<p><\/p>\n<table><\/p>\n<thead><\/p>\n<tr><\/p>\n<th>Protocol<\/th>\n<p><\/p>\n<th>Minimum Size (bytes)<\/th>\n<p><\/p>\n<th>Maximum Size (bytes)<\/th>\n<p><\/tr>\n<p><\/thead>\n<p><\/p>\n<tbody><\/p>\n<tr><\/p>\n<td>IPv4<\/td>\n<p><\/p>\n<td>46<\/td>\n<p><\/p>\n<td>1500<\/td>\n<p><\/tr>\n<p><\/p>\n<tr><\/p>\n<td>IPv6<\/td>\n<p><\/p>\n<td>46<\/td>\n<p><\/p>\n<td>1500<\/td>\n<p><\/tr>\n<p><\/tbody>\n<p><\/table>\n<p><\/p>\n<h4>\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u5c64\u30d7\u30ed\u30c8\u30b3\u30eb\u30c7\u30fc\u30bf\u30e6\u30cb\u30c3\u30c8<\/h4>\n<p><\/p>\n<p>\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u5c64 PDU \u306f\u30d5\u30ec\u30fc\u30e0\u3068\u3057\u3066\u77e5\u3089\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30d5\u30ec\u30fc\u30e0\u306b\u306f\u3001\u30ed\u30fc\u30ab\u30eb \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u901a\u4fe1\u306b\u5f79\u7acb\u3064\u30d8\u30c3\u30c0\u30fc\u3068\u30c8\u30ec\u30fc\u30e9\u30fc\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002\u540c\u3058\u30ed\u30fc\u30ab\u30eb \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e0a\u306e\u30c7\u30d0\u30a4\u30b9\u306b\u5fc5\u8981\u306a\u5236\u5fa1\u60c5\u5831\u3092\u63d0\u4f9b\u3059\u308b\u3053\u3068\u3067\u3001\u6b63\u78ba\u306a\u30c7\u30fc\u30bf\u914d\u4fe1\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002<\/p>\n<p><\/p>\n<h4>\u7269\u7406\u5c64\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u30c7\u30fc\u30bf\u5358\u4f4d<\/h4>\n<p><\/p>\n<p>\u7269\u7406\u5c64\u3067\u306f\u3001PDU \u306f\u3055\u307e\u3056\u307e\u306a\u30e1\u30c7\u30a3\u30a2\u4e0a\u3067\u9001\u4fe1\u3067\u304d\u308b\u3088\u3046\u306b\u30d5\u30ec\u30fc\u30e0\u3092\u30d3\u30c3\u30c8\u306b\u5909\u63db\u3057\u307e\u3059\u3002\u3053\u306e\u5c64\u306f\u3055\u307e\u3056\u307e\u306a\u901a\u4fe1\u65b9\u6cd5\u306b\u9069\u5fdc\u3057\u3001\u30c7\u30fc\u30bf\u304c\u30b1\u30fc\u30d6\u30eb\u3001\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u3001\u307e\u305f\u306f\u7121\u7dda\u4fe1\u53f7\u3092\u4ecb\u3057\u3066\u4f1d\u9001\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/p>\n<p><\/p>\n<p>\u3053\u306e\u3088\u3046\u306a\u7a2e\u985e\u306e\u30d7\u30ed\u30c8\u30b3\u30eb \u30c7\u30fc\u30bf\u5358\u4f4d\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u643a\u308f\u308b\u3059\u3079\u3066\u306e\u4eba\u306b\u3068\u3063\u3066\u91cd\u8981\u3067\u3059\u3002\u5404\u30bf\u30a4\u30d7\u306f\u3001OSI \u30e2\u30c7\u30eb\u306e\u3055\u307e\u3056\u307e\u306a\u30ec\u30a4\u30e4\u30fc\u9593\u3067\u30c7\u30fc\u30bf\u304c\u52b9\u7387\u7684\u304b\u3064\u6b63\u78ba\u306b\u9001\u4fe1\u3055\u308c\u308b\u3088\u3046\u306b\u3059\u308b\u4e0a\u3067\u72ec\u81ea\u306e\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002<\/p>\n<p><\/p>\n<h2>OSI \u30e2\u30c7\u30eb\u306b\u304a\u3051\u308b\u30d7\u30ed\u30c8\u30b3\u30eb \u30c7\u30fc\u30bf \u30e6\u30cb\u30c3\u30c8\u306e\u5f79\u5272<\/h2>\n<p><\/p>\n<h3>OSI\u30e2\u30c7\u30eb\u306e\u6982\u8981<\/h3>\n<p><\/p>\n<p>OSI \u30e2\u30c7\u30eb (Open Systems Interconnection \u30e2\u30c7\u30eb) \u306f\u3001\u3055\u307e\u3056\u307e\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30b7\u30b9\u30c6\u30e0\u304c\u901a\u4fe1\u3059\u308b\u65b9\u6cd5\u3092\u6a19\u6e96\u5316\u3059\u308b\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3067\u3059\u3002 1970 \u5e74\u4ee3\u5f8c\u534a\u304b\u3089 1980 \u5e74\u4ee3\u524d\u534a\u306b\u767b\u5834\u3057\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u901a\u4fe1\u3078\u306e\u69cb\u9020\u5316\u3055\u308c\u305f\u30a2\u30d7\u30ed\u30fc\u30c1\u3092\u63d0\u4f9b\u3057\u307e\u3057\u305f\u3002\u3053\u306e\u30e2\u30c7\u30eb\u306f\u3001\u901a\u4fe1\u30d7\u30ed\u30bb\u30b9\u3092 7 \u3064\u306e\u7570\u306a\u308b\u5c64\u306b\u5206\u5272\u3057\u3001\u305d\u308c\u305e\u308c\u306b\u72ec\u81ea\u306e\u6a5f\u80fd\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u3046\u3059\u308b\u3053\u3068\u3067\u3001\u3055\u307e\u3056\u307e\u306a\u30e1\u30fc\u30ab\u30fc\u306e\u30c7\u30d0\u30a4\u30b9\u304c\u30b7\u30fc\u30e0\u30ec\u30b9\u306b\u9023\u643a\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><\/p>\n<p>OSI \u30e2\u30c7\u30eb\u306e 7 \u3064\u306e\u5c64\u3092\u7c21\u5358\u306b\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002:<\/p>\n<p><\/p>\n<table><\/p>\n<thead><\/p>\n<tr><\/p>\n<th>\u30ec\u30a4\u30e4\u756a\u53f7<\/th>\n<p><\/p>\n<th>\u30ec\u30a4\u30e4\u30fc\u540d<\/th>\n<p><\/p>\n<th>\u6a5f\u80fd\u306e\u8aac\u660e<\/th>\n<p><\/tr>\n<p><\/thead>\n<p><\/p>\n<tbody><\/p>\n<tr><\/p>\n<td>7<\/td>\n<p><\/p>\n<td>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30ec\u30a4\u30e4\u30fc<\/td>\n<p><\/p>\n<td>\u30e6\u30fc\u30b6\u30fc \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30b5\u30fc\u30d3\u30b9\u3092\u76f4\u63a5\u63d0\u4f9b\u3057\u3001\u901a\u4fe1\u3092\u5bb9\u6613\u306b\u3057\u307e\u3059\u3002<\/td>\n<p><\/tr>\n<p><\/p>\n<tr><\/p>\n<td>6<\/td>\n<p><\/p>\n<td>\u30d7\u30ec\u30bc\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u30ec\u30a4\u30e4\u30fc<\/td>\n<p><\/p>\n<td>\u30c7\u30fc\u30bf\u3092\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5c64\u304c\u51e6\u7406\u3067\u304d\u308b\u5f62\u5f0f\u306b\u5909\u63db\u3057\u307e\u3059\u3002<\/td>\n<p><\/tr>\n<p><\/p>\n<tr><\/p>\n<td>5<\/td>\n<p><\/p>\n<td>\u30bb\u30c3\u30b7\u30e7\u30f3\u30ec\u30a4\u30e4\u30fc<\/td>\n<p><\/p>\n<td>\u30ce\u30fc\u30c9\u9593\u306e\u901a\u4fe1\u30bb\u30c3\u30b7\u30e7\u30f3\u3092\u7ba1\u7406\u3057\u307e\u3059\u3002<\/td>\n<p><\/tr>\n<p><\/p>\n<tr><\/p>\n<td>4<\/td>\n<p><\/p>\n<td>\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64<\/td>\n<p><\/p>\n<td>\u30db\u30b9\u30c8\u9593\u306e\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u30a8\u30f3\u30c9\u30c4\u30fc\u30a8\u30f3\u30c9\u306e\u30c7\u30fc\u30bf\u914d\u4fe1\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002<\/td>\n<p><\/tr>\n<p><\/p>\n<tr><\/p>\n<td>3<\/td>\n<p><\/p>\n<td>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30ec\u30a4\u30e4\u30fc<\/td>\n<p><\/p>\n<td>\u7570\u306a\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u9593\u3067\u30c7\u30fc\u30bf \u30d1\u30b1\u30c3\u30c8\u3092\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3057\u307e\u3059\u3002<\/td>\n<p><\/tr>\n<p><\/p>\n<tr><\/p>\n<td>2<\/td>\n<p><\/p>\n<td>\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u30ec\u30a4\u30e4\u30fc<\/td>\n<p><\/p>\n<td>\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<\/td>\n<p><\/tr>\n<p><\/p>\n<tr><\/p>\n<td>1<\/td>\n<p><\/p>\n<td>\u7269\u7406\u5c64<\/td>\n<p><\/p>\n<td>\u30b1\u30fc\u30d6\u30eb\u3084\u7121\u7dda\u4fe1\u53f7\u306a\u3069\u306e\u7269\u7406\u5a92\u4f53\u3092\u4ecb\u3057\u3066\u751f\u306e\u30d3\u30c3\u30c8\u3092\u9001\u4fe1\u3057\u307e\u3059\u3002<\/td>\n<p><\/tr>\n<p><\/tbody>\n<p><\/table>\n<p><\/p>\n<h3>\u5404\u5c64\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u30c7\u30fc\u30bf\u30e6\u30cb\u30c3\u30c8<\/h3>\n<p><\/p>\n<p>Understanding how <a href=\"https:\/\/www.newsunnpdu.com\/news\/top10-things-to-know-about-pdu-meaning-in-2025\/\" target=\"_blank\" rel=\"noopener\">\u30d7\u30ed\u30c8\u30b3\u30eb\u30c7\u30fc\u30bf\u5358\u4f4d<\/a> OSI \u30e2\u30c7\u30eb\u306e\u5404\u5c64\u3067\u52d5\u4f5c\u3059\u308b\u3053\u3068\u306f\u3001\u30c7\u30fc\u30bf\u901a\u4fe1\u30d7\u30ed\u30bb\u30b9\u5168\u4f53\u3092\u628a\u63e1\u3059\u308b\u305f\u3081\u306b\u91cd\u8981\u3067\u3059\u3002\u5404\u5c64\u306f\u30c7\u30fc\u30bf\u3092\u51e6\u7406\u3059\u308b\u72ec\u81ea\u306e\u65b9\u6cd5\u3092\u5099\u3048\u3066\u304a\u308a\u3001\u3053\u308c\u306b\u3088\u308a\u60c5\u5831\u304c\u3042\u308b\u5730\u70b9\u304b\u3089\u5225\u306e\u5730\u70b9\u3078\u30b9\u30e0\u30fc\u30ba\u306b\u4f1d\u9054\u3055\u308c\u307e\u3059\u3002<\/p>\n<p><\/p>\n<h4>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30ec\u30a4\u30e4\u30fc<\/h4>\n<p><\/p>\n<p>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5c64\u3067\u306f\u3001\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u30c7\u30fc\u30bf\u5358\u4f4d\u3092\u5358\u306b\u300c\u30c7\u30fc\u30bf\u300d\u3068\u547c\u3073\u307e\u3059\u3002\u3053\u306e\u5c64\u306f\u30e6\u30fc\u30b6\u30fc \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3068\u76f4\u63a5\u5bfe\u8a71\u3057\u3001\u60c5\u5831\u306e\u9001\u53d7\u4fe1\u3092\u53ef\u80fd\u306b\u3057\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u96fb\u5b50\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3059\u308b\u3068\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5c64\u306f\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u30c7\u30fc\u30bf\u3068\u3057\u3066\u30d1\u30c3\u30b1\u30fc\u30b8\u5316\u3057\u3001\u9001\u4fe1\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/p>\n<p><\/p>\n<h4>\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64<\/h4>\n<p><\/p>\n<p>\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64\u306f\u3001TCP \u63a5\u7d9a\u306b\u306f\u30bb\u30b0\u30e1\u30f3\u30c8\u3092\u4f7f\u7528\u3057\u3001UDP \u63a5\u7d9a\u306b\u306f\u30c7\u30fc\u30bf\u30b0\u30e9\u30e0\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u3053\u306e\u5c64\u306f\u3001\u30c7\u30fc\u30bf\u304c\u5b8c\u5168\u306a\u72b6\u614b\u3067\u6b63\u3057\u3044\u9806\u5e8f\u3067\u5230\u7740\u3059\u308b\u3053\u3068\u3092\u4fdd\u8a3c\u3059\u308b\u8cac\u4efb\u304c\u3042\u308a\u307e\u3059\u3002\u30a8\u30e9\u30fc \u30c1\u30a7\u30c3\u30af\u3068\u30d5\u30ed\u30fc\u5236\u5fa1\u3092\u7ba1\u7406\u3059\u308b\u305f\u3081\u3001\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u901a\u4fe1\u306b\u306f\u4e0d\u53ef\u6b20\u3067\u3059\u3002<\/p>\n<p><\/p>\n<h4>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30ec\u30a4\u30e4\u30fc<\/h4>\n<p><\/p>\n<p>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64\u3067\u306f\u3001\u30d7\u30ed\u30c8\u30b3\u30eb \u30c7\u30fc\u30bf \u30e6\u30cb\u30c3\u30c8\u306f\u30d1\u30b1\u30c3\u30c8\u3068\u547c\u3070\u308c\u307e\u3059\u3002\u3053\u306e\u5c64\u306f\u3001\u7570\u306a\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u9593\u3067\u30d1\u30b1\u30c3\u30c8\u3092\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3057\u3001\u30c7\u30fc\u30bf\u304c\u79fb\u52d5\u3059\u308b\u6700\u9069\u306a\u30d1\u30b9\u3092\u6c7a\u5b9a\u3057\u307e\u3059\u3002\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64\u304b\u3089\u53d7\u4fe1\u3057\u305f\u30c7\u30fc\u30bf\u3092\u30d1\u30b1\u30c3\u30c8\u306b\u30ab\u30d7\u30bb\u30eb\u5316\u3057\u307e\u3059\u3002\u30d1\u30b1\u30c3\u30c8\u306b\u306f\u3001\u5b9b\u5148\u306b\u5c0e\u304f\u305f\u3081\u306e\u30a2\u30c9\u30ec\u30b9\u60c5\u5831\u304c\u542b\u307e\u308c\u307e\u3059\u3002<\/p>\n<p><\/p>\n<h4>\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u30ec\u30a4\u30e4\u30fc<\/h4>\n<p><\/p>\n<p>\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u5c64\u306f\u30c7\u30fc\u30bf\u3092\u30d5\u30ec\u30fc\u30e0\u306b\u7de8\u6210\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30d5\u30ec\u30fc\u30e0\u306b\u306f\u3001\u30ed\u30fc\u30ab\u30eb \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u901a\u4fe1\u306b\u5f79\u7acb\u3064\u30d8\u30c3\u30c0\u30fc\u3068\u30c8\u30ec\u30fc\u30e9\u30fc\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306b\u3088\u308a\u3001\u540c\u3058\u30ed\u30fc\u30ab\u30eb \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e0a\u306e\u30c7\u30d0\u30a4\u30b9\u9593\u3067\u30c7\u30fc\u30bf\u304c\u6b63\u78ba\u306b\u914d\u4fe1\u3055\u308c\u308b\u3053\u3068\u304c\u4fdd\u8a3c\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u5c64\u306f\u30a8\u30e9\u30fc\u306e\u691c\u51fa\u3068\u8a02\u6b63\u3082\u51e6\u7406\u3057\u3001\u30c7\u30fc\u30bf\u9001\u4fe1\u306e\u4fe1\u983c\u6027\u3092\u9ad8\u3081\u307e\u3059\u3002<\/p>\n<p><\/p>\n<h4>\u7269\u7406\u5c64<\/h4>\n<p><\/p>\n<p>\u6700\u5f8c\u306b\u3001\u7269\u7406\u5c64\u306f\u30c7\u30fc\u30bf\u3092\u30d3\u30c3\u30c8\u3068\u3057\u3066\u9001\u4fe1\u3057\u307e\u3059\u3002\u3053\u306e\u5c64\u306f\u3001\u4f1d\u9001\u306b\u4f7f\u7528\u3055\u308c\u308b\u5a92\u4f53\u306b\u5fdc\u3058\u3066\u3001\u30d5\u30ec\u30fc\u30e0\u3092\u96fb\u6c17\u4fe1\u53f7\u3001\u5149\u30d1\u30eb\u30b9\u3001\u307e\u305f\u306f\u96fb\u6ce2\u306b\u5909\u63db\u3057\u307e\u3059\u3002\u96fb\u5727\u30ec\u30d9\u30eb\u3084\u30bf\u30a4\u30df\u30f3\u30b0\u306a\u3069\u3001\u30c7\u30fc\u30bf\u9001\u4fe1\u306e\u7269\u7406\u7684\u5074\u9762\u3092\u6271\u3044\u307e\u3059\u3002<\/p>\n<p><\/p>\n<h2>TCP\/IP \u30e2\u30c7\u30eb\u306b\u304a\u3051\u308b\u30d7\u30ed\u30c8\u30b3\u30eb \u30c7\u30fc\u30bf \u30e6\u30cb\u30c3\u30c8\u306e\u5f79\u5272<\/h2>\n<p><\/p>\n<h3>TCP\/IP \u30e2\u30c7\u30eb\u306e\u6982\u8981<\/h3>\n<p><\/p>\n<p>TCP\/IP \u30e2\u30c7\u30eb\u306f\u3001Transmission Control Protocol\/Internet Protocol \u306e\u7565\u3067\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u304a\u3088\u3073\u540c\u69d8\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u4f7f\u7528\u3055\u308c\u308b\u4e00\u9023\u306e\u901a\u4fe1\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3059\u3002\u3053\u306e\u30e2\u30c7\u30eb\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30ad\u30f3\u30b0\u3092 4 \u3064\u306e\u5c64\u306b\u7de8\u6210\u3059\u308b\u3053\u3068\u3067\u7c21\u7d20\u5316\u3057\u307e\u3059\u3002\u5404\u5c64\u306b\u306f\u7279\u5b9a\u306e\u6a5f\u80fd\u3068\u8cac\u4efb\u304c\u3042\u308a\u3001\u30c7\u30d0\u30a4\u30b9\u306e\u901a\u4fe1\u304c\u5bb9\u6613\u306b\u306a\u308a\u307e\u3059\u3002\u30ec\u30a4\u30e4\u30fc\u306b\u306f\u4ee5\u4e0b\u304c\u542b\u307e\u308c\u307e\u3059:<\/p>\n<p><\/p>\n<ol><\/p>\n<li><strong>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30ec\u30a4\u30e4\u30fc<\/strong>: \u3053\u306e\u5c64\u306f\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2 \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3068\u76f4\u63a5\u5bfe\u8a71\u3057\u307e\u3059\u3002<\/li>\n<p><\/p>\n<li><strong>\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64<\/strong>: \u30c7\u30d0\u30a4\u30b9\u9593\u306e\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u30c7\u30fc\u30bf\u8ee2\u9001\u304c\u4fdd\u8a3c\u3055\u308c\u307e\u3059\u3002<\/li>\n<p><\/p>\n<li><strong>\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u5c64<\/strong>: \u3053\u306e\u5c64\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5168\u4f53\u3067\u306e\u30c7\u30fc\u30bf \u30d1\u30b1\u30c3\u30c8\u306e\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u51e6\u7406\u3057\u307e\u3059\u3002<\/li>\n<p><\/p>\n<li><strong>\u30ea\u30f3\u30af\u5c64<\/strong>: \u30c7\u30d0\u30a4\u30b9\u9593\u306e\u7269\u7406\u7684\u306a\u63a5\u7d9a\u3092\u7ba1\u7406\u3057\u307e\u3059\u3002<\/li>\n<p><\/ol>\n<p><\/p>\n<p>\u3053\u308c\u3089\u306e\u5c64\u3092\u7406\u89e3\u3059\u308b\u3068\u3001\u3069\u306e\u3088\u3046\u306b\u3059\u308b\u304b\u3092\u660e\u78ba\u306b\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002 <a href=\"https:\/\/www.newsunnpdu.com\/news\/top10-things-to-know-about-pdu-meaning-in-2025\/\" target=\"_blank\" rel=\"noopener\">\u30d7\u30ed\u30c8\u30b3\u30eb\u30c7\u30fc\u30bf\u5358\u4f4d<\/a> TCP\/IP \u30e2\u30c7\u30eb\u5185\u306e\u6a5f\u80fd\u3002<\/p>\n<p><\/p>\n<h3>TCP\/IP\u5c64\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u30c7\u30fc\u30bf\u30e6\u30cb\u30c3\u30c8<\/h3>\n<p><\/p>\n<h4>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30ec\u30a4\u30e4\u30fc<\/h4>\n<p><\/p>\n<p>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5c64\u3067\u306f\u3001\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u30c7\u30fc\u30bf\u5358\u4f4d\u3092\u5358\u306b\u300c\u30c7\u30fc\u30bf\u300d\u3068\u547c\u3073\u307e\u3059\u3002\u3053\u306e\u5c64\u306f\u3001Web \u30d6\u30e9\u30a6\u30b6\u3084\u96fb\u5b50\u30e1\u30fc\u30eb \u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306a\u3069\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u3088\u3063\u3066\u751f\u6210\u3055\u308c\u305f\u60c5\u5831\u3092\u30d1\u30c3\u30b1\u30fc\u30b8\u5316\u3057\u307e\u3059\u3002\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u9001\u4fe1\u3059\u308b\u3068\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5c64\u304c\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u9001\u4fe1\u3067\u304d\u308b\u3088\u3046\u306b\u6e96\u5099\u3057\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u6b63\u3057\u3044\u5b9b\u5148\u306b\u78ba\u5b9f\u306b\u5c4a\u304f\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/p>\n<p><\/p>\n<h4>\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64<\/h4>\n<p><\/p>\n<p>\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64\u306f\u3001\u30d7\u30ed\u30c8\u30b3\u30eb \u30c7\u30fc\u30bf\u5358\u4f4d\u3068\u3057\u3066\u30bb\u30b0\u30e1\u30f3\u30c8\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u30bb\u30b0\u30e1\u30f3\u30c8\u306b\u3088\u308a\u3001\u30c7\u30fc\u30bf\u304c\u305d\u306e\u307e\u307e\u306e\u72b6\u614b\u3067\u6b63\u3057\u3044\u9806\u5e8f\u3067\u5230\u7740\u3059\u308b\u3053\u3068\u304c\u4fdd\u8a3c\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u5c64\u306f\u3001\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u901a\u4fe1\u306b\u4e0d\u53ef\u6b20\u306a\u30a8\u30e9\u30fc \u30c1\u30a7\u30c3\u30af\u3068\u30d5\u30ed\u30fc\u5236\u5fa1\u3092\u7ba1\u7406\u3057\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u30d3\u30c7\u30aa\u3092\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u3059\u308b\u5834\u5408\u3001\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64\u306f\u30bb\u30b0\u30e1\u30f3\u30c8\u304c\u6b63\u3057\u3044\u9806\u5e8f\u3067\u5230\u7740\u3059\u308b\u3053\u3068\u3092\u4fdd\u8a3c\u3057\u3001\u30b9\u30e0\u30fc\u30ba\u306a\u518d\u751f\u3092\u53ef\u80fd\u306b\u3057\u307e\u3059\u3002<\/p>\n<p><\/p>\n<h4>\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u5c64<\/h4>\n<p><\/p>\n<p>\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u5c64\u3067\u306f\u3001\u30d7\u30ed\u30c8\u30b3\u30eb \u30c7\u30fc\u30bf \u30e6\u30cb\u30c3\u30c8\u306f\u30d1\u30b1\u30c3\u30c8\u3068\u547c\u3070\u308c\u307e\u3059\u3002\u30d1\u30b1\u30c3\u30c8\u306b\u306f\u3001\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64\u304b\u3089\u306e\u30c7\u30fc\u30bf\u3068\u30a2\u30c9\u30ec\u30b9\u6307\u5b9a\u60c5\u5831\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u5c64\u306f\u3001\u7570\u306a\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u9593\u3067\u30d1\u30b1\u30c3\u30c8\u3092\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3059\u308b\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002\u30c7\u30fc\u30bf\u304c\u79fb\u52d5\u3059\u308b\u6700\u9069\u306a\u30d1\u30b9\u3092\u6c7a\u5b9a\u3057\u3001\u30c7\u30fc\u30bf\u304c\u52b9\u7387\u7684\u306b\u76ee\u7684\u5730\u306b\u5230\u9054\u3059\u308b\u3053\u3068\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002<\/p>\n<p><\/p>\n<h4>\u30ea\u30f3\u30af\u5c64<\/h4>\n<p><\/p>\n<p>\u6700\u5f8c\u306b\u3001\u30ea\u30f3\u30af\u5c64\u306f\u30d7\u30ed\u30c8\u30b3\u30eb \u30c7\u30fc\u30bf \u30e6\u30cb\u30c3\u30c8\u3068\u3057\u3066\u30d5\u30ec\u30fc\u30e0\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u30d5\u30ec\u30fc\u30e0\u306f\u3001\u7269\u7406\u5a92\u4f53\u4e0a\u3067\u9001\u4fe1\u3059\u308b\u305f\u3081\u306b\u30d1\u30b1\u30c3\u30c8\u3092\u30ab\u30d7\u30bb\u30eb\u5316\u3057\u307e\u3059\u3002\u3053\u306e\u5c64\u306b\u3088\u308a\u3001\u540c\u3058\u30ed\u30fc\u30ab\u30eb \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e0a\u306e\u30c7\u30d0\u30a4\u30b9\u9593\u3067\u30c7\u30fc\u30bf\u304c\u6b63\u78ba\u306b\u914d\u4fe1\u3055\u308c\u308b\u3053\u3068\u304c\u4fdd\u8a3c\u3055\u308c\u307e\u3059\u3002\u307e\u305f\u3001\u30a8\u30e9\u30fc\u306e\u691c\u51fa\u3068\u8a02\u6b63\u3082\u51e6\u7406\u3057\u3001\u30c7\u30fc\u30bf\u4f1d\u9001\u306e\u4fe1\u983c\u6027\u3092\u9ad8\u3081\u307e\u3059\u3002<\/p>\n<p><\/p>\n<p>\u3053\u3053\u3067\u306f\u3001TCP\/IP \u5c64\u3068\u305d\u308c\u306b\u5bfe\u5fdc\u3059\u308b\u30d7\u30ed\u30c8\u30b3\u30eb \u30c7\u30fc\u30bf\u5358\u4f4d\u306e\u7c21\u5358\u306a\u6982\u8981\u3092\u793a\u3057\u307e\u3059\u3002:<\/p>\n<p><\/p>\n<table><\/p>\n<thead><\/p>\n<tr><\/p>\n<th>\u5c64<\/th>\n<p><\/p>\n<th>\u30d7\u30ed\u30c8\u30b3\u30eb\u30c7\u30fc\u30bf\u30e6\u30cb\u30c3\u30c8\uff08PDU)<\/th>\n<p><\/tr>\n<p><\/thead>\n<p><\/p>\n<tbody><\/p>\n<tr><\/p>\n<td>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5c64<\/td>\n<p><\/p>\n<td>\u30c7\u30fc\u30bf<\/td>\n<p><\/tr>\n<p><\/p>\n<tr><\/p>\n<td>\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64<\/td>\n<p><\/p>\n<td>\u30bb\u30b0\u30e1\u30f3\u30c8<\/td>\n<p><\/tr>\n<p><\/p>\n<tr><\/p>\n<td>\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u5c64<\/td>\n<p><\/p>\n<td>\u30d1\u30b1\u30c3\u30c8<\/td>\n<p><\/tr>\n<p><\/p>\n<tr><\/p>\n<td>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30ea\u30f3\u30af\u5c64<\/td>\n<p><\/p>\n<td>\u30d5\u30ec\u30fc\u30e0<\/td>\n<p><\/tr>\n<p><\/tbody>\n<p><\/table>\n<p><\/p>\n<p>\u3053\u308c\u3089\u3092\u7406\u89e3\u3059\u308b <a href=\"https:\/\/www.newsunnpdu.com\/news\/your-2025-guide-to-european-rack-pdus-for-uk-germany-and-france\/\" target=\"_blank\" rel=\"noopener\">\u30d7\u30ed\u30c8\u30b3\u30eb\u30c7\u30fc\u30bf\u5358\u4f4d<\/a> TCP\/IP \u30e2\u30c7\u30eb\u5185\u3067\u306e\u7406\u89e3\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u643a\u308f\u308b\u3059\u3079\u3066\u306e\u4eba\u306b\u3068\u3063\u3066\u975e\u5e38\u306b\u91cd\u8981\u3067\u3059\u3002\u5404\u5c64\u306f\u3001\u30c7\u30fc\u30bf\u304c\u52b9\u7387\u7684\u304b\u3064\u6b63\u78ba\u306b\u9001\u4fe1\u3055\u308c\u308b\u3053\u3068\u3092\u4fdd\u8a3c\u3059\u308b\u4e0a\u3067\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002<\/p>\n<p><\/p>\n<h2>\u30d7\u30ed\u30c8\u30b3\u30eb\u30c7\u30fc\u30bf\u30e6\u30cb\u30c3\u30c8\u306e\u69cb\u9020<\/h2>\n<p><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/statics.mylandingpages.co\/static\/aaanxdmf26c522mpaaaaz2wwe7ppkact\/image\/891b54498ec64129bc63f099905c16dd.webp\" alt=\"\u30d7\u30ed\u30c8\u30b3\u30eb\u30c7\u30fc\u30bf\u30e6\u30cb\u30c3\u30c8\u306e\u69cb\u9020\" \/><\/p>\n<p><\/p>\n<p>\u7406\u89e3\u3059\u308b <a href=\"https:\/\/www.newsunnpdu.com\/news\/top10-things-to-know-about-pdu-meaning-in-2025\/\" target=\"_blank\" rel=\"noopener\">\u30d7\u30ed\u30c8\u30b3\u30eb\u30c7\u30fc\u30bf\u30e6\u30cb\u30c3\u30c8\u306e\u69cb\u9020<\/a> (PDU) \u306f\u3001\u30c7\u30fc\u30bf\u304c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u9593\u3092\u3069\u306e\u3088\u3046\u306b\u79fb\u52d5\u3059\u308b\u304b\u3092\u628a\u63e1\u3059\u308b\u305f\u3081\u306b\u91cd\u8981\u3067\u3059\u3002\u5404 PDU \u306f\u3001\u30d8\u30c3\u30c0\u30fc\u3001\u30da\u30a4\u30ed\u30fc\u30c9\u3001\u30c8\u30ec\u30fc\u30e9\u30fc\u3068\u3044\u3046 3 \u3064\u306e\u4e3b\u8981\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3067\u69cb\u6210\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u3089\u3092\u5206\u89e3\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p><\/p>\n<h3>\u30d7\u30ed\u30c8\u30b3\u30eb\u30c7\u30fc\u30bf\u30e6\u30cb\u30c3\u30c8\u306e\u69cb\u6210\u8981\u7d20<\/h3>\n<p><\/p>\n<h4>\u30d8\u30c3\u30c0<\/h4>\n<p><\/p>\n<p>\u30d8\u30c3\u30c0\u30fc\u306f PDU \u306e\u6700\u521d\u306e\u90e8\u5206\u3067\u3059\u3002\u3053\u308c\u306b\u306f\u3001\u30c7\u30d0\u30a4\u30b9\u304c\u30c7\u30fc\u30bf\u306e\u51e6\u7406\u65b9\u6cd5\u3092\u7406\u89e3\u3059\u308b\u306e\u306b\u5f79\u7acb\u3064\u91cd\u8981\u306a\u5236\u5fa1\u60c5\u5831\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002\u30d8\u30c3\u30c0\u30fc\u306b\u542b\u307e\u308c\u308b\u3044\u304f\u3064\u304b\u306e\u91cd\u8981\u306a\u8981\u7d20\u3092\u6b21\u306b\u793a\u3057\u307e\u3059\u3002:<\/p>\n<p><\/p>\n<ul><\/p>\n<li><strong>\u9001\u4fe1\u5143\u30a2\u30c9\u30ec\u30b9<\/strong>: \u30c7\u30fc\u30bf\u306e\u9001\u4fe1\u5143\u3092\u7279\u5b9a\u3057\u307e\u3059\u3002<\/li>\n<p><\/p>\n<li><strong>\u5b9b\u5148\u30a2\u30c9\u30ec\u30b9<\/strong>: \u30c7\u30fc\u30bf\u306e\u9001\u4fe1\u5148\u3092\u793a\u3057\u307e\u3059\u3002<\/li>\n<p><\/p>\n<li><strong>\u30d5\u30e9\u30b0<\/strong>: \u3053\u308c\u3089\u306f\u3001\u30c7\u30fc\u30bf\u306e\u51e6\u7406\u65b9\u6cd5\u306b\u3064\u3044\u3066\u306e\u6307\u793a\u3092\u63d0\u4f9b\u3059\u308b\u7279\u5225\u306a\u30de\u30fc\u30ab\u30fc\u3067\u3059\u3002<\/li>\n<p><\/p>\n<li><strong>\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u9806\u5e8f<\/strong>: \u30bb\u30c3\u30b7\u30e7\u30f3\u5185\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u30b7\u30fc\u30b1\u30f3\u30b9\u3092\u7dad\u6301\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/li>\n<p><\/ul>\n<p><\/p>\n<table><\/p>\n<thead><\/p>\n<tr><\/p>\n<th>\u6210\u5206<\/th>\n<p><\/p>\n<th>\u8aac\u660e<\/th>\n<p><\/tr>\n<p><\/thead>\n<p><\/p>\n<tbody><\/p>\n<tr><\/p>\n<td>\u30d8\u30c3\u30c0<\/td>\n<p><\/p>\n<td>\u9001\u4fe1\u5143\u30a2\u30c9\u30ec\u30b9\u3001\u5b9b\u5148\u30a2\u30c9\u30ec\u30b9\u3001\u30d5\u30e9\u30b0\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u5185\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u9806\u5e8f\u306a\u3069\u306e\u5236\u5fa1\u60c5\u5831\u304c\u542b\u307e\u308c\u307e\u3059\u3002<\/td>\n<p><\/tr>\n<p><\/tbody>\n<p><\/table>\n<p><\/p>\n<h4>\u30da\u30a4\u30ed\u30fc\u30c9<\/h4>\n<p><\/p>\n<p>\u30da\u30a4\u30ed\u30fc\u30c9\u306f PDU \u306e\u4e2d\u5fc3\u3067\u3059\u3002\u30d5\u30a1\u30a4\u30eb\u306e\u30bb\u30b0\u30e1\u30f3\u30c8\u3084\u96fb\u5b50\u30e1\u30fc\u30eb \u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u4e00\u90e8\u306a\u3069\u3001\u9001\u4fe1\u3055\u308c\u308b\u5b9f\u969b\u306e\u30c7\u30fc\u30bf\u304c\u542b\u307e\u308c\u307e\u3059\u3002\u30da\u30a4\u30ed\u30fc\u30c9\u306e\u30b5\u30a4\u30ba\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u5927\u304d\u306a\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u7406\u7531\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059:<\/p>\n<p><\/p>\n<ul><\/p>\n<li><strong>\u30da\u30a4\u30ed\u30fc\u30c9\u306e\u5f79\u5272<\/strong>: \u30c6\u30ad\u30b9\u30c8\u3084\u30d3\u30c7\u30aa \u30d1\u30b1\u30c3\u30c8\u306a\u3069\u306e\u30e6\u30fc\u30b6\u30fc \u30c7\u30fc\u30bf\u3092\u4fdd\u6301\u3057\u307e\u3059\u3002<\/li>\n<p><\/p>\n<li><strong>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3078\u306e\u5f71\u97ff<\/strong>: \u30da\u30a4\u30ed\u30fc\u30c9\u304c\u5927\u304d\u3044\u3068\u9001\u4fe1\u6642\u9593\u304c\u9577\u304f\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u30da\u30a4\u30ed\u30fc\u30c9\u304c\u5c0f\u3055\u3044\u3068\u52b9\u7387\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002<\/li>\n<p><\/ul>\n<p><\/p>\n<table><\/p>\n<thead><\/p>\n<tr><\/p>\n<th>\u5074\u9762<\/th>\n<p><\/p>\n<th>\u8aac\u660e<\/th>\n<p><\/tr>\n<p><\/thead>\n<p><\/p>\n<tbody><\/p>\n<tr><\/p>\n<td>\u30da\u30a4\u30ed\u30fc\u30c9\u306e\u5f79\u5272<\/td>\n<p><\/p>\n<td>\u30da\u30a4\u30ed\u30fc\u30c9\u306b\u306f\u3001\u96fb\u5b50\u30e1\u30fc\u30eb\u306e\u30c6\u30ad\u30b9\u30c8\u3084\u30d3\u30c7\u30aa \u30b9\u30c8\u30ea\u30fc\u30e0\u306e\u30d1\u30b1\u30c3\u30c8\u306a\u3069\u3001\u901a\u4fe1\u3055\u308c\u308b\u5b9f\u969b\u306e\u30e6\u30fc\u30b6\u30fc \u30c7\u30fc\u30bf\u304c\u542b\u307e\u308c\u307e\u3059\u3002<\/td>\n<p><\/tr>\n<p><\/p>\n<tr><\/p>\n<td>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3078\u306e\u5f71\u97ff<\/td>\n<p><\/p>\n<td>\u3053\u306e\u30e6\u30fc\u30b6\u30fc \u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u306f\u3001\u30b3\u30df\u30e5\u30cb\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u4f1d\u3048\u3088\u3046\u3068\u3059\u308b\u4e2d\u5fc3\u7684\u306a\u30b3\u30f3\u30c6\u30f3\u30c4\u3067\u3059\u3002<\/td>\n<p><\/tr>\n<p><\/tbody>\n<p><\/table>\n<p><\/p>\n<h4>\u30c8\u30ec\u30fc\u30e9\u30fc<\/h4>\n<p><\/p>\n<p>\u30c8\u30ec\u30fc\u30e9\u30fc\u306f\u30aa\u30d7\u30b7\u30e7\u30f3\u3067\u3059\u304c\u3001\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u3092\u78ba\u4fdd\u3059\u308b\u4e0a\u3067\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002\u591a\u304f\u306e\u5834\u5408\u3001\u30c1\u30a7\u30c3\u30af\u30b5\u30e0\u3084\u5de1\u56de\u5197\u9577\u691c\u67fb (CRC) \u306a\u3069\u306e\u30a8\u30e9\u30fc \u30c1\u30a7\u30c3\u30af \u30e1\u30ab\u30cb\u30ba\u30e0\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30c4\u30fc\u30eb\u306f\u3001\u9001\u4fe1\u30a8\u30e9\u30fc\u3092\u7279\u5b9a\u3057\u3066\u4fee\u6b63\u3057\u3001\u53d7\u4fe1\u3057\u305f\u30c7\u30fc\u30bf\u304c\u9001\u4fe1\u3055\u308c\u305f\u30c7\u30fc\u30bf\u3068\u78ba\u5b9f\u306b\u4e00\u81f4\u3059\u308b\u3088\u3046\u306b\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n<p><\/p>\n<h3>\u5404\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u91cd\u8981\u6027<\/h3>\n<p><\/p>\n<p>PDU \u306e\u5404\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306f\u3001\u30c7\u30fc\u30bf\u306e\u9001\u4fe1\u3068\u51e6\u7406\u3092\u5f37\u5316\u3059\u308b\u7279\u5b9a\u306e\u76ee\u7684\u3092\u679c\u305f\u3057\u307e\u3059\u3002:<\/p>\n<p><\/p>\n<ul><\/p>\n<li>The <strong>\u30d8\u30c3\u30c0<\/strong> \u91cd\u8981\u306a\u5236\u5fa1\u60c5\u5831\u3092\u63d0\u4f9b\u3057\u3001\u30c7\u30d0\u30a4\u30b9\u304c\u30c7\u30fc\u30bf\u3092\u6b63\u3057\u304f\u89e3\u91c8\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/li>\n<p><\/p>\n<li>The <strong>\u30da\u30a4\u30ed\u30fc\u30c9<\/strong> \u30e6\u30fc\u30b6\u30fc\u30b3\u30de\u30f3\u30c9\u3084\u30b5\u30fc\u30d0\u30fc\u5fdc\u7b54\u306a\u3069\u3001\u9001\u4fe1\u3055\u308c\u308b\u5b9f\u969b\u306e\u30c7\u30fc\u30bf\u304c\u542b\u307e\u308c\u307e\u3059\u3002<\/li>\n<p><\/p>\n<li>The <strong>\u30c8\u30ec\u30fc\u30e9\u30fc<\/strong> \u591a\u304f\u306e\u5834\u5408\u3001\u4f1d\u9001\u30a8\u30e9\u30fc\u3092\u7279\u5b9a\u3057\u3066\u4fee\u6b63\u3059\u308b\u305f\u3081\u306e\u30a8\u30e9\u30fc\u691c\u51fa\u30e1\u30ab\u30cb\u30ba\u30e0\u304c\u7d44\u307f\u8fbc\u307e\u308c\u3066\u304a\u308a\u3001\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u304c\u4fdd\u8a3c\u3055\u308c\u307e\u3059\u3002<\/li>\n<p><\/ul>\n<p><\/p>\n<p>\u30c7\u30fc\u30bf\u306e\u65ad\u7247\u5316\u3092\u7ba1\u7406\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u3001PDU \u306f\u65ad\u7247\u5316\u3055\u308c\u305f\u30c7\u30fc\u30bf\u306e\u69cb\u9020\u3068\u9806\u5e8f\u3092\u7dad\u6301\u3057\u3001\u52b9\u7387\u7684\u306b\u518d\u7d44\u307f\u7acb\u3066\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002\u3053\u306e\u69cb\u6210\u306b\u3088\u308a\u3001\u4f1d\u9001\u306e\u4fe1\u983c\u6027\u304c\u5411\u4e0a\u3057\u3001\u901a\u4fe1\u304c\u3088\u308a\u30b9\u30e0\u30fc\u30ba\u304b\u3064\u52b9\u679c\u7684\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><\/p>\n<h2>\u30ab\u30d7\u30bb\u30eb\u5316\u3068\u8131\u30ab\u30d7\u30bb\u30eb\u5316\u30d7\u30ed\u30bb\u30b9<\/h2>\n<p><\/p>\n<h3>\u30ab\u30d7\u30bb\u30eb\u5316\u3068\u306f\u4f55\u3067\u3059\u304b?<\/h3>\n<p><\/p>\n<p>\u30ab\u30d7\u30bb\u30eb\u5316\u306f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u304a\u3051\u308b\u91cd\u8981\u306a\u30d7\u30ed\u30bb\u30b9\u3067\u3059\u3002\u3053\u308c\u306b\u306f\u3001\u4e0a\u4f4d\u5c64\u30d7\u30ed\u30c8\u30b3\u30eb\u304b\u3089\u306e\u4e0b\u4f4d\u5c64\u30d7\u30ed\u30c8\u30b3\u30eb\u306e PDU \u3078\u306e\u30c7\u30fc\u30bf\u306e\u30e9\u30c3\u30d7\u304c\u542b\u307e\u308c\u307e\u3059\u3002\u30c7\u30fc\u30bf\u304c OSI \u307e\u305f\u306f TCP\/IP \u30e2\u30c7\u30eb\u306e\u5c64\u3092\u4e0b\u306b\u79fb\u52d5\u3059\u308b\u3068\u3001\u5404\u5c64\u306b\u72ec\u81ea\u306e\u30d8\u30c3\u30c0\u30fc\u3001\u5834\u5408\u306b\u3088\u3063\u3066\u306f\u30d5\u30c3\u30bf\u30fc\u304c\u8ffd\u52a0\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u5909\u63db\u306b\u3088\u308a\u3001\u30c7\u30fc\u30bf\u304c\u9001\u4fe1\u7528\u306b\u6b63\u3057\u304f\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3055\u308c\u308b\u3053\u3068\u304c\u4fdd\u8a3c\u3055\u308c\u307e\u3059\u3002<\/p>\n<p><\/p>\n<p>\u30ab\u30d7\u30bb\u30eb\u5316\u304c\u3069\u306e\u3088\u3046\u306b\u6a5f\u80fd\u3059\u308b\u304b\u3092\u6bb5\u968e\u7684\u306b\u8aac\u660e\u3057\u307e\u3059\u3002:<\/p>\n<p><\/p>\n<ol><\/p>\n<li>\u30e6\u30fc\u30b6\u30fc \u30c7\u30fc\u30bf\u306f\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5c64\u3067\u751f\u6210\u3055\u308c\u307e\u3059\u3002<\/li>\n<p><\/p>\n<li>\u30c7\u30fc\u30bf\u306f\u30d7\u30ec\u30bc\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u5c64\u306b\u79fb\u52d5\u3057\u3001\u305d\u3053\u3067\u30a8\u30f3\u30b3\u30fc\u30c9\u3055\u308c\u3001\u5834\u5408\u306b\u3088\u3063\u3066\u306f\u6697\u53f7\u5316\u3055\u308c\u307e\u3059\u3002<\/li>\n<p><\/p>\n<li>\u30bb\u30c3\u30b7\u30e7\u30f3\u5c64\u3067\u306f\u3001\u30bb\u30c3\u30b7\u30e7\u30f3 ID \u304c\u8ffd\u52a0\u3055\u308c\u307e\u3059\u3002<\/li>\n<p><\/p>\n<li>\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64\u306f\u30c7\u30fc\u30bf\u3092\u30bb\u30b0\u30e1\u30f3\u30c8\u5316\u3057\u3001\u30d8\u30c3\u30c0\u30fc\u3092\u8ffd\u52a0\u3057\u307e\u3059\u3002<\/li>\n<p><\/p>\n<li>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64\u306f IP \u30d8\u30c3\u30c0\u30fc\u3092\u8ffd\u52a0\u3057\u3001IP \u30d1\u30b1\u30c3\u30c8\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/li>\n<p><\/p>\n<li>\u6700\u5f8c\u306b\u3001\u30c7\u30fc\u30bf \u30ea\u30f3\u30af\u5c64\u3067\u30d8\u30c3\u30c0\u30fc\u3068\u30c8\u30ec\u30fc\u30e9\u30fc\u304c\u8ffd\u52a0\u3055\u308c\u3001\u30d5\u30ec\u30fc\u30e0\u304c\u5f62\u6210\u3055\u308c\u307e\u3059\u3002<\/li>\n<p><\/ol>\n<p><\/p>\n<p>\u3053\u306e\u30d7\u30ed\u30bb\u30b9\u306f\u3001\u30c7\u30fc\u30bf\u306e\u9001\u4fe1\u3092\u6e96\u5099\u3059\u308b\u3060\u3051\u3067\u306a\u304f\u3001\u305d\u306e\u5b8c\u5168\u6027\u3068\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3082\u5f37\u5316\u3057\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001ESP \u306a\u3069\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u306f IP \u30d1\u30b1\u30c3\u30c8\u306e\u5185\u5bb9\u3092\u6697\u53f7\u5316\u3057\u3001\u8a31\u53ef\u3055\u308c\u305f\u53d7\u4fe1\u8005\u306e\u307f\u304c\u30c7\u30fc\u30bf\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002\u307e\u305f\u3001\u9001\u4fe1\u8005\u306e\u8eab\u5143\u3092\u691c\u8a3c\u3057\u3066\u3001\u306a\u308a\u3059\u307e\u3057\u653b\u6483\u3092\u9632\u6b62\u3057\u3001\u6574\u5408\u6027\u30c1\u30a7\u30c3\u30af\u5024\u3092\u4f7f\u7528\u3057\u3066\u3001\u9001\u4fe1\u4e2d\u306b\u30c7\u30fc\u30bf\u304c\u5909\u66f4\u3055\u308c\u3066\u3044\u306a\u3044\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n<p><\/p>\n<h3>\u30ab\u30d7\u30bb\u30eb\u5316\u89e3\u9664\u3068\u306f\u4f55\u3067\u3059\u304b?<\/h3>\n<p><\/p>\n<p>\u30ab\u30d7\u30bb\u30eb\u5316\u89e3\u9664\u306f\u30ab\u30d7\u30bb\u30eb\u5316\u306e\u9006\u3067\u3059\u3002 PDU \u304c\u30d7\u30ed\u30c8\u30b3\u30eb \u30b9\u30bf\u30c3\u30af\u3092\u4e0a\u306b\u79fb\u52d5\u3059\u308b\u3068\u3001\u5404\u5c64\u306f\u305d\u306e\u7279\u5b9a\u306e\u30d8\u30c3\u30c0\u30fc\u3068\u30c8\u30ec\u30fc\u30e9\u30fc\u3092\u524a\u9664\u3057\u307e\u3059\u3002\u3053\u306e\u30d7\u30ed\u30bb\u30b9\u306f\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5c64\u304c\u5143\u306e\u30c7\u30fc\u30bf\u3092\u53d7\u4fe1\u3057\u3001\u610f\u56f3\u3057\u305f\u3068\u304a\u308a\u306b\u60c5\u5831\u3092\u51e6\u7406\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308b\u307e\u3067\u7d99\u7d9a\u3055\u308c\u307e\u3059\u3002<\/p>\n<p><\/p>\n<p>\u30ab\u30d7\u30bb\u30eb\u5316\u89e3\u9664\u304c\u3069\u306e\u3088\u3046\u306b\u5c55\u958b\u3055\u308c\u308b\u304b\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059:<\/p>\n<p><\/p>\n<ul><\/p>\n<li>\u3053\u306e\u30d7\u30ed\u30bb\u30b9\u306f\u3001\u30d1\u30b1\u30c3\u30c8\u304c\u5230\u7740\u3059\u308b\u3068\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9 \u30ab\u30fc\u30c9 (NIC) \u3067\u958b\u59cb\u3055\u308c\u307e\u3059\u3002<\/li>\n<p><\/p>\n<li>At the Data Link layer, the frame header is examined to check if the packet is intended for the device. If the MAC addresses match, the header is removed.<\/li>\n<p><\/p>\n<li>The Network layer verifies the destination IP address and routing information, removing the IP header afterward.<\/li>\n<p><\/p>\n<li>\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64\u306f\u30c7\u30fc\u30bf\u3092\u51e6\u7406\u3057\u3001\u30d8\u30c3\u30c0\u30fc\u3092\u524a\u9664\u3059\u308b\u524d\u306b\u30b7\u30fc\u30b1\u30f3\u30b9\u756a\u53f7\u3068\u78ba\u8a8d\u5fdc\u7b54\u756a\u53f7\u3092\u8abf\u3079\u307e\u3059\u3002<\/li>\n<p><\/p>\n<li>\u6700\u5f8c\u306b\u3001\u4e0a\u4f4d\u5c64\u306f\u3001\u6700\u7d42\u30da\u30a4\u30ed\u30fc\u30c9\u3092\u914d\u4fe1\u3059\u308b\u524d\u306b\u3001\u6697\u53f7\u5316\u3084\u30c7\u30fc\u30bf\u5727\u7e2e\u306a\u3069\u306e\u8ffd\u52a0\u6a5f\u80fd\u3092\u5b9f\u884c\u3059\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<p><\/ul>\n<p><\/p>\n<p>\u3053\u306e\u30d8\u30c3\u30c0\u30fc\u3068\u30c8\u30ec\u30fc\u30e9\u30fc\u306e\u4f53\u7cfb\u7684\u306a\u524a\u9664\u306b\u3088\u308a\u3001\u30c7\u30fc\u30bf\u304c\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u6b63\u78ba\u306b\u914d\u4fe1\u3055\u308c\u308b\u3053\u3068\u304c\u4fdd\u8a3c\u3055\u308c\u307e\u3059\u3002\u30c7\u30fc\u30bf\u304c\u5b9b\u5148\u30c7\u30d0\u30a4\u30b9\u306b\u5230\u9054\u3059\u308b\u3068\u3001\u30ab\u30d7\u30bb\u30eb\u5316\u89e3\u9664\u306b\u3088\u3063\u3066\u30ab\u30d7\u30bb\u30eb\u5316\u30d7\u30ed\u30bb\u30b9\u304c\u9006\u306b\u884c\u308f\u308c\u3001\u30b3\u30a2 \u30c7\u30fc\u30bf\u304c\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5c64\u306b\u5230\u9054\u3059\u308b\u307e\u3067\u5404\u5c64\u3092\u901a\u904e\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><\/p>\n<h3>\u30c7\u30fc\u30bf\u4f1d\u9001\u306b\u304a\u3051\u308b\u91cd\u8981\u6027<\/h3>\n<p><\/p>\n<p>\u30ab\u30d7\u30bb\u30eb\u5316\u3068\u30ab\u30d7\u30bb\u30eb\u5316\u89e3\u9664\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u3001\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u30c7\u30fc\u30bf\u9001\u4fe1\u306e\u305f\u3081\u306b\u4e0d\u53ef\u6b20\u3067\u3059\u3002\u3053\u308c\u3089\u306e\u30d7\u30ed\u30bb\u30b9\u306b\u3088\u308a\u3001\u30c7\u30fc\u30bf\u304c\u6b63\u3057\u304f\u30d1\u30c3\u30b1\u30fc\u30b8\u5316\u3055\u308c\u3001\u3055\u307e\u3056\u307e\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64\u306b\u9001\u4fe1\u3055\u308c\u308b\u3053\u3068\u304c\u4fdd\u8a3c\u3055\u308c\u307e\u3059\u3002\u91cd\u8981\u306a\u5236\u5fa1\u60c5\u5831\u3092\u542b\u3080\u30d8\u30c3\u30c0\u30fc\u3068\u30c8\u30ec\u30fc\u30e9\u30fc\u3092\u8ffd\u52a0\u307e\u305f\u306f\u524a\u9664\u3059\u308b\u3053\u3068\u3067\u3001\u52b9\u679c\u7684\u306a\u901a\u4fe1\u3092\u4fc3\u9032\u3057\u307e\u3059\u3002<\/p>\n<p><\/p>\n<h2>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u901a\u4fe1\u306b\u304a\u3051\u308b\u30d7\u30ed\u30c8\u30b3\u30eb\u30c7\u30fc\u30bf\u30e6\u30cb\u30c3\u30c8\u306e\u91cd\u8981\u6027<\/h2>\n<p><\/p>\n<h3>\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u3078\u306e\u5f71\u97ff<\/h3>\n<p><\/p>\n<p><a href=\"https:\/\/www.newsunnpdu.com\/news\/top10-things-to-know-about-pdu-meaning-in-2025\/\" target=\"_blank\" rel=\"noopener\">\u30d7\u30ed\u30c8\u30b3\u30eb\u30c7\u30fc\u30bf\u30e6\u30cb\u30c3\u30c8\u306f\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059<\/a> \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u901a\u4fe1\u4e2d\u306b\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u3092\u7dad\u6301\u3059\u308b\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306b\u3088\u308a\u3001\u3042\u308b\u30c7\u30d0\u30a4\u30b9\u304b\u3089\u5225\u306e\u30c7\u30d0\u30a4\u30b9\u306b\u9001\u4fe1\u3055\u308c\u308b\u60c5\u5831\u304c\u6b63\u78ba\u304b\u3064\u5909\u66f4\u3055\u308c\u3066\u3044\u306a\u3044\u3053\u3068\u304c\u4fdd\u8a3c\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u306b\u8ca2\u732e\u3059\u308b\u4e3b\u8981\u306a\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u3044\u304f\u3064\u304b\u7d39\u4ecb\u3057\u307e\u3059\u3002:<\/p>\n<p><\/p>\n<ul><\/p>\n<li><strong>\u30d8\u30c3\u30c0<\/strong>: \u30c7\u30fc\u30bf\u304c\u6b63\u3057\u304f\u9001\u4fe1\u3055\u308c\u3001\u9806\u756a\u306b\u518d\u7d44\u307f\u7acb\u3066\u3055\u308c\u308b\u3053\u3068\u3092\u4fdd\u8a3c\u3059\u308b\u305f\u3081\u306e\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u60c5\u5831\u3068\u30b7\u30fc\u30b1\u30f3\u30b9\u306e\u8a73\u7d30\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002<\/li>\n<p><\/p>\n<li><strong>\u30da\u30a4\u30ed\u30fc\u30c9<\/strong>: \u9001\u4fe1\u3055\u308c\u308b\u5b9f\u969b\u306e\u30c7\u30fc\u30bf\u3002\u7834\u640d\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u901a\u4fe1\u306f\u5931\u6557\u3057\u307e\u3059\u3002<\/li>\n<p><\/p>\n<li><strong>\u30c8\u30ec\u30fc\u30e9\u30fc<\/strong>: \u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u3092\u691c\u8a3c\u3057\u3001\u30a8\u30e9\u30fc\u304c\u691c\u51fa\u3055\u308c\u305f\u5834\u5408\u306b\u518d\u9001\u4fe1\u3092\u4fc3\u3059\u30a8\u30e9\u30fc \u30c1\u30a7\u30c3\u30af \u30e1\u30ab\u30cb\u30ba\u30e0\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002<\/li>\n<p><\/ul>\n<p><\/p>\n<p>\u3053\u308c\u3089\u306e\u8981\u7d20\u304c\u9023\u643a\u3057\u3066\u3001\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u901a\u4fe1\u30c1\u30e3\u30cd\u30eb\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u9001\u4fe1\u4e2d\u306b\u30d1\u30b1\u30c3\u30c8\u304c\u7834\u640d\u3057\u305f\u5834\u5408\u3001\u30c8\u30ec\u30fc\u30e9\u30fc\u306f\u518d\u9001\u4fe1\u306e\u5fc5\u8981\u6027\u3092\u901a\u77e5\u3057\u3001\u53d7\u4fe1\u3057\u305f\u30c7\u30fc\u30bf\u304c\u9001\u4fe1\u3055\u308c\u305f\u3082\u306e\u3068\u540c\u3058\u3067\u3042\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><\/p>\n<h3>\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3068\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u306b\u304a\u3051\u308b\u5f79\u5272<\/h3>\n<p><\/p>\n<p>\u30d7\u30ed\u30c8\u30b3\u30eb \u30c7\u30fc\u30bf \u30e6\u30cb\u30c3\u30c8\u3082\u5bb9\u6613\u306b\u306a\u308a\u307e\u3059 <a href=\"https:\/\/www.newsunnpdu.com\/news\/beyond-basic-power-switched-vs-metered-pdu-features-compared\/\" target=\"_blank\" rel=\"noopener\">\u52b9\u7387\u7684\u306a\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3068\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0<\/a> \u73fe\u4ee3\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u306f\u3002\u3053\u308c\u3089\u306f\u3001\u30c7\u30fc\u30bf\u4ea4\u63db\u306e\u305f\u3081\u306e\u6a19\u6e96\u5316\u3055\u308c\u305f\u5f62\u5f0f\u3092\u63d0\u4f9b\u3057\u3001\u3055\u307e\u3056\u307e\u306a\u30c7\u30d0\u30a4\u30b9\u9593\u306e\u52b9\u679c\u7684\u306a\u901a\u4fe1\u3092\u53ef\u80fd\u306b\u3057\u307e\u3059\u3002\u5f7c\u3089\u304c\u3069\u306e\u3088\u3046\u306b\u5f79\u7acb\u3064\u304b\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059:<\/p>\n<p><\/p>\n<ul><\/p>\n<li>PDU \u306f\u3001\u30c7\u30fc\u30bf\u3092\u7ba1\u7406\u53ef\u80fd\u306a\u5358\u4f4d\u306b\u5206\u5272\u3059\u308b\u3053\u3068\u3067\u60c5\u5831\u306e\u6d41\u308c\u3092\u7ba1\u7406\u3057\u3001\u30a8\u30e9\u30fc\u51e6\u7406\u3068\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u3092\u652f\u63f4\u3057\u307e\u3059\u3002<\/li>\n<p><\/p>\n<li>\u3053\u308c\u3089\u306b\u3088\u308a\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u306b\u6700\u9069\u306a\u30c7\u30fc\u30bf \u30b5\u30a4\u30ba\u304c\u78ba\u4fdd\u3055\u308c\u3001\u30ea\u30bd\u30fc\u30b9\u52b9\u7387\u304c\u5411\u4e0a\u3057\u3001\u9045\u5ef6\u304c\u77ed\u7e2e\u3055\u308c\u307e\u3059\u3002<\/li>\n<p><\/ul>\n<p><\/p>\n<p>PDU \u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u30eb\u30fc\u30bf\u30fc\u3068\u30b9\u30a4\u30c3\u30c1\u306f\u30c7\u30fc\u30bf\u304c\u79fb\u52d5\u3059\u308b\u305f\u3081\u306e\u6700\u9069\u306a\u30d1\u30b9\u3092\u8fc5\u901f\u306b\u6c7a\u5b9a\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u52b9\u7387\u306f\u3001\u7279\u306b\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u304c\u591a\u3044\u74b0\u5883\u3067\u30b9\u30e0\u30fc\u30ba\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u904b\u7528\u3092\u7dad\u6301\u3059\u308b\u305f\u3081\u306b\u4e0d\u53ef\u6b20\u3067\u3059\u3002<\/p>\n<p><\/p>\n<h3>\u30d7\u30ed\u30c8\u30b3\u30eb\u30c7\u30fc\u30bf\u30e6\u30cb\u30c3\u30c8\u3068\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9<\/h3>\n<p><\/p>\n<p>\u30d7\u30ed\u30c8\u30b3\u30eb \u30c7\u30fc\u30bf \u30e6\u30cb\u30c3\u30c8\u306e\u8a2d\u8a08\u306f\u3001\u9045\u5ef6\u3084\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8\u306a\u3069\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9 \u30e1\u30c8\u30ea\u30c3\u30af\u306b\u5927\u304d\u306a\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u3059\u3002\u5f85\u3061\u6642\u9593\u304c\u9577\u3044\u3068\u3001\u7279\u306b\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0 \u30c7\u30fc\u30bf\u51e6\u7406\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8\u306b\u60aa\u5f71\u97ff\u3092\u53ca\u307c\u3059\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u8003\u616e\u3059\u3079\u304d\u91cd\u8981\u306a\u70b9\u304c\u3044\u304f\u3064\u304b\u3042\u308a\u307e\u3059:<\/p>\n<p><\/p>\n<ul><\/p>\n<li>TCP \u306a\u3069\u306e\u78ba\u8a8d\u5fdc\u7b54\u30d9\u30fc\u30b9\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u306f\u3001\u8ffd\u52a0\u306e\u30c7\u30fc\u30bf\u3092\u9001\u4fe1\u3059\u308b\u524d\u306b\u78ba\u8a8d\u5fdc\u7b54\u3092\u5f85\u3064\u5fc5\u8981\u304c\u3042\u308b\u305f\u3081\u3001\u9045\u5ef6\u304c\u5897\u52a0\u3059\u308b\u3068\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8\u304c\u4f4e\u4e0b\u3057\u307e\u3059\u3002<\/li>\n<p><\/p>\n<li>TCP \u3084 IP \u306a\u3069\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30d7\u30ed\u30c8\u30b3\u30eb\u306f\u30d1\u30b1\u30c3\u30c8\u306b\u30d8\u30c3\u30c0\u30fc\u3068\u30c8\u30ec\u30fc\u30e9\u30fc\u3092\u8ffd\u52a0\u3057\u3001\u5e2f\u57df\u5e45\u3092\u6d88\u8cbb\u3057\u3001\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u3059\u3002<\/li>\n<p><\/ul>\n<p><\/p>\n<p>\u3053\u308c\u3089\u306e\u8981\u56e0\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c02\u9580\u5bb6\u304c\u30b7\u30b9\u30c6\u30e0\u3092\u6700\u9069\u5316\u3057\u3066\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5411\u4e0a\u3055\u305b\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002 PDU \u3092\u52b9\u679c\u7684\u306b\u7ba1\u7406\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5168\u4f53\u306e\u30c7\u30fc\u30bf\u9001\u4fe1\u306e\u5168\u4f53\u7684\u306a\u52b9\u7387\u3092\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><\/p>\n<hr \/>\n<p><\/p>\n<p>\u8981\u7d04\u3059\u308b\u3068\u3001\u30d7\u30ed\u30c8\u30b3\u30eb \u30c7\u30fc\u30bf \u30e6\u30cb\u30c3\u30c8 (PDU) \u306f\u52b9\u679c\u7684\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30ad\u30f3\u30b0\u306b\u4e0d\u53ef\u6b20\u3067\u3059\u3002\u3053\u308c\u3089\u306f\u3001\u30c7\u30fc\u30bf\u306e\u30ab\u30d7\u30bb\u30eb\u5316\u3068\u30a8\u30e9\u30fc \u30c1\u30a7\u30c3\u30af\u306b\u304a\u3044\u3066\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002\u5404\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64\u306b\u306f\u3001\u30d3\u30c3\u30c8\u3001\u30d5\u30ec\u30fc\u30e0\u3001\u30d1\u30b1\u30c3\u30c8\u3001\u30bb\u30b0\u30e1\u30f3\u30c8\u306a\u3069\u306e\u56fa\u6709\u306e PDU \u30bf\u30a4\u30d7\u304c\u3042\u308a\u307e\u3059\u3002 PDU \u306b\u306f\u3001\u9001\u4fe1\u5143\u30a2\u30c9\u30ec\u30b9\u3084\u5b9b\u5148\u30a2\u30c9\u30ec\u30b9\u306a\u3069\u306e\u5236\u5fa1\u8a73\u7d30\u3092\u542b\u3080\u30d8\u30c3\u30c0\u30fc\u304c\u542b\u307e\u308c\u308b\u305f\u3081\u3001\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u901a\u4fe1\u304c\u4fdd\u8a3c\u3055\u308c\u307e\u3059\u3002<\/p>\n<p><\/p>\n<p>PDU \u3092\u7406\u89e3\u3059\u308b\u3068\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c02\u9580\u5bb6\u304c\u30c7\u30fc\u30bf \u30d5\u30ed\u30fc\u3092\u7ba1\u7406\u3057\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5411\u4e0a\u3055\u305b\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u7d4c\u9a13\u8c4a\u5bcc\u306a\u5c02\u9580\u5bb6\u3067\u3042\u3063\u3066\u3082\u3001\u521d\u5fc3\u8005\u3067\u3042\u3063\u3066\u3082\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30ad\u30f3\u30b0\u306e\u6982\u5ff5\u3092\u6df1\u304f\u6398\u308a\u4e0b\u3052\u308b\u3053\u3068\u3067\u3001\u30b9\u30ad\u30eb\u3068\u77e5\u8b58\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002 \ud83c\udf10<\/p>\n<p><\/p>\n<h2>\u3088\u304f\u3042\u308b\u8cea\u554f<\/h2>\n<p><\/p>\n<h3>\u30d7\u30ed\u30c8\u30b3\u30eb \u30c7\u30fc\u30bf \u30e6\u30cb\u30c3\u30c8 (PDU) \u3068\u306f\u4f55\u3067\u3059\u304b?<\/h3>\n<p><\/p>\n<p>\u30d7\u30ed\u30c8\u30b3\u30eb \u30c7\u30fc\u30bf \u30e6\u30cb\u30c3\u30c8 (PDU) \u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u4f7f\u7528\u3055\u308c\u308b\u30c7\u30fc\u30bf\u306e\u5358\u4f4d\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30e6\u30fc\u30b6\u30fc \u30c7\u30fc\u30bf\u3068\u5236\u5fa1\u60c5\u5831\u306e\u4e21\u65b9\u304c\u30ab\u30d7\u30bb\u30eb\u5316\u3055\u308c\u3001\u30c7\u30d0\u30a4\u30b9\u304c OSI \u307e\u305f\u306f TCP\/IP \u30e2\u30c7\u30eb\u306e\u3055\u307e\u3056\u307e\u306a\u5c64\u9593\u3067\u52b9\u679c\u7684\u306b\u901a\u4fe1\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><\/p>\n<h3>\u30cd\u30c3\u30c8\u30ef\u30fc\u30ad\u30f3\u30b0\u306b\u304a\u3044\u3066 PDU \u304c\u91cd\u8981\u306a\u306e\u306f\u306a\u305c\u3067\u3059\u304b?<\/h3>\n<p><\/p>\n<p>PDU \u306f\u3001\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u30c7\u30fc\u30bf\u4f1d\u9001\u3092\u4fdd\u8a3c\u3059\u308b\u305f\u3081\u3001\u975e\u5e38\u306b\u91cd\u8981\u3067\u3059\u3002\u3053\u308c\u3089\u306f\u3001\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u306e\u7dad\u6301\u3001\u30a8\u30e9\u30fc\u691c\u51fa\u306e\u7ba1\u7406\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3068\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u306e\u4fc3\u9032\u306b\u5f79\u7acb\u3061\u3001\u30c7\u30d0\u30a4\u30b9\u9593\u306e\u901a\u4fe1\u3092\u52b9\u7387\u5316\u3057\u307e\u3059\u3002<\/p>\n<p><\/p>\n<h3>PDU \u306f\u30ec\u30a4\u30e4\u30fc\u9593\u3067\u3069\u306e\u3088\u3046\u306b\u7570\u306a\u308a\u307e\u3059\u304b?<\/h3>\n<p><\/p>\n<p>OSI \u304a\u3088\u3073 TCP\/IP \u30e2\u30c7\u30eb\u306e\u5404\u5c64\u306f\u3001\u7570\u306a\u308b\u30bf\u30a4\u30d7\u306e PDU \u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5c64\u306f\u300c\u30c7\u30fc\u30bf\u300d\u3092\u4f7f\u7528\u3057\u3001\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64\u306f\u300c\u30bb\u30b0\u30e1\u30f3\u30c8\u300d\u3092\u4f7f\u7528\u3057\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64\u306f\u300c\u30d1\u30b1\u30c3\u30c8\u300d\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\"<\/p>\n<p><\/p>\n<h3>\u30cd\u30c3\u30c8\u30ef\u30fc\u30ad\u30f3\u30b0\u306b\u304a\u3051\u308b\u30ab\u30d7\u30bb\u30eb\u5316\u3068\u306f\u4f55\u3067\u3059\u304b?<\/h3>\n<p><\/p>\n<p>\u30ab\u30d7\u30bb\u30eb\u5316\u306f\u3001\u30c7\u30fc\u30bf\u304c OSI \u307e\u305f\u306f TCP\/IP \u30e2\u30c7\u30eb\u306e\u5c64\u306e\u4e0b\u306b\u79fb\u52d5\u3059\u308b\u3068\u304d\u306b\u30d8\u30c3\u30c0\u30fc\u3068\u30c8\u30ec\u30fc\u30e9\u30fc\u3067\u30c7\u30fc\u30bf\u3092\u30e9\u30c3\u30d7\u3059\u308b\u30d7\u30ed\u30bb\u30b9\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30c7\u30fc\u30bf\u304c\u9001\u4fe1\u7528\u306b\u6b63\u3057\u304f\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3055\u308c\u308b\u3053\u3068\u304c\u4fdd\u8a3c\u3055\u308c\u307e\u3059\u3002<\/p>\n<p><\/p>\n<h3>\u30ab\u30d7\u30bb\u30eb\u5316\u89e3\u9664\u3068\u306f\u4f55\u3067\u3059\u304b?<\/h3>\n<p><\/p>\n<p>\u30ab\u30d7\u30bb\u30eb\u5316\u89e3\u9664\u306f\u3001\u30ab\u30d7\u30bb\u30eb\u5316\u306e\u9006\u306e\u30d7\u30ed\u30bb\u30b9\u3067\u3059\u3002\u3053\u308c\u306b\u306f\u3001PDU \u304c\u5c64\u3092\u901a\u904e\u3059\u308b\u3068\u304d\u306b\u30d8\u30c3\u30c0\u30fc\u3068\u30c8\u30ec\u30fc\u30e9\u30fc\u304c\u524a\u9664\u3055\u308c\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304c\u5143\u306e\u30c7\u30fc\u30bf\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u3053\u3068\u304c\u542b\u307e\u308c\u307e\u3059\u3002<\/p>\n<p><\/p>\n<h3>PDU \u306f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u3069\u306e\u3088\u3046\u306a\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u3059\u304b?<\/h3>\n<p><\/p>\n<p>PDU \u306f\u3001\u9045\u5ef6\u3068\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u3053\u3068\u306b\u3088\u308a\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u3059\u3002\u9069\u5207\u306a\u30b5\u30a4\u30ba\u306e PDU \u306f\u52b9\u7387\u3092\u9ad8\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u304c\u3001\u30b5\u30a4\u30ba\u304c\u9069\u5207\u3067\u306a\u3044\u3068\u9045\u5ef6\u3084\u30c7\u30fc\u30bf\u8ee2\u9001\u901f\u5ea6\u306e\u4f4e\u4e0b\u306b\u3064\u306a\u304c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p><\/p>\n<h3>PDU \u306f\u30a8\u30e9\u30fc\u691c\u51fa\u306b\u5f79\u7acb\u3061\u307e\u3059\u304b?<\/h3>\n<p><\/p>\n<p>\u306f\u3044\u3001PDU \u306b\u306f\u591a\u304f\u306e\u5834\u5408\u3001\u30c8\u30ec\u30fc\u30e9\u30fc\u306b\u30a8\u30e9\u30fc \u30c1\u30a7\u30c3\u30af \u30e1\u30ab\u30cb\u30ba\u30e0\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30e1\u30ab\u30cb\u30ba\u30e0\u306f\u3001\u9001\u4fe1\u4e2d\u306e\u30a8\u30e9\u30fc\u3092\u7279\u5b9a\u3057\u3066\u4fee\u6b63\u3057\u3001\u53d7\u4fe1\u3057\u305f\u30c7\u30fc\u30bf\u304c\u9001\u4fe1\u3055\u308c\u305f\u30c7\u30fc\u30bf\u3068\u78ba\u5b9f\u306b\u4e00\u81f4\u3059\u308b\u3088\u3046\u306b\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n<p><\/p>\n<h3>PDU \u306b\u3064\u3044\u3066\u3055\u3089\u306b\u8a73\u3057\u304f\u77e5\u308b\u306b\u306f\u3069\u3046\u3059\u308c\u3070\u3088\u3044\u3067\u3059\u304b?<\/h3>\n<p><\/p>\n<p>PDU \u306b\u3064\u3044\u3066\u3055\u3089\u306b\u8a73\u3057\u304f\u77e5\u308a\u305f\u3044\u5834\u5408\u306f\u3001\u30c7\u30fc\u30bf\u901a\u4fe1\u306b\u7126\u70b9\u3092\u5f53\u3066\u305f\u30cd\u30c3\u30c8\u30ef\u30fc\u30ad\u30f3\u30b0 \u30b3\u30fc\u30b9\u3001\u30aa\u30f3\u30e9\u30a4\u30f3 \u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u3001\u307e\u305f\u306f\u66f8\u7c4d\u3092\u691c\u8a0e\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u5b9f\u8df5\u7684\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30ad\u30f3\u30b0 \u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u53c2\u52a0\u3059\u308b\u3053\u3068\u3067\u3001\u7406\u89e3\u3092\u6df1\u3081\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>\u30d7\u30ed\u30c8\u30b3\u30eb \u30c7\u30fc\u30bf \u30e6\u30cb\u30c3\u30c8 (PDU) \u3068\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u304a\u3051\u308b\u305d\u306e\u91cd\u8981\u306a\u5f79\u5272\u3092\u7406\u89e3\u3057\u307e\u3059\u3002\u52b9\u7387\u7684\u306a\u30c7\u30fc\u30bf\u901a\u4fe1\u3068\u6574\u5408\u6027\u3092\u3069\u306e\u3088\u3046\u306b\u78ba\u4fdd\u3059\u308b\u304b\u3092\u5b66\u3073\u307e\u3057\u3087\u3046\u3002<\/p>","protected":false},"author":1,"featured_media":4639,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-4640","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/www.newsunn.com\/ja\/wp-json\/wp\/v2\/posts\/4640","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsunn.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsunn.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsunn.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsunn.com\/ja\/wp-json\/wp\/v2\/comments?post=4640"}],"version-history":[{"count":0,"href":"https:\/\/www.newsunn.com\/ja\/wp-json\/wp\/v2\/posts\/4640\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsunn.com\/ja\/wp-json\/wp\/v2\/media\/4639"}],"wp:attachment":[{"href":"https:\/\/www.newsunn.com\/ja\/wp-json\/wp\/v2\/media?parent=4640"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsunn.com\/ja\/wp-json\/wp\/v2\/categories?post=4640"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsunn.com\/ja\/wp-json\/wp\/v2\/tags?post=4640"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}