{"id":4459,"date":"2025-07-23T15:13:26","date_gmt":"2025-07-23T07:13:26","guid":{"rendered":"https:\/\/niusheng.gg13.globaldeepsea.site\/pdu-networking-basics-importance-in-network-communication\/"},"modified":"2025-07-23T15:13:26","modified_gmt":"2025-07-23T07:13:26","slug":"pdu-networking-basics-importance-in-network-communication","status":"publish","type":"post","link":"https:\/\/www.newsunn.com\/ja\/pdu-networking-basics-importance-in-network-communication\/","title":{"rendered":"PDU\u30cd\u30c3\u30c8\u30ef\u30fc\u30ad\u30f3\u30b0\u306e\u57fa\u672c\u3068\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u901a\u4fe1\u306b\u304a\u3051\u308b\u305d\u308c\u3089\u306e\u91cd\u8981\u6027"},"content":{"rendered":"<p><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/statics.mylandingpages.co\/static\/aaanxdmf26c522mpaaaaz2wwe7ppkact\/image\/803119381b7a4266ab8f5e68847e9423.webp\" alt=\"PDU\u30cd\u30c3\u30c8\u30ef\u30fc\u30ad\u30f3\u30b0\u306e\u57fa\u672c\u3068\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u901a\u4fe1\u306b\u304a\u3051\u308b\u305d\u308c\u3089\u306e\u91cd\u8981\u6027\" \/><\/p>\n<p><\/p>\n<p>\u30d7\u30ed\u30c8\u30b3\u30eb\u30c7\u30fc\u30bf\u30e6\u30cb\u30c3\u30c8\uff08PDU\uff09\u306f\u3092\u8868\u3057\u307e\u3059 <a href=\"https:\/\/www.newsunnpdu.com\/basic-pdu\/\" target=\"_blank\" rel=\"noopener\">\u57fa\u672c\u7684\u306aPDU<\/a> \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u901a\u4fe1\u3067\u306f\u3001\u30c7\u30fc\u30bf\u3068\u5fc5\u9808\u30e1\u30bf\u30c7\u30fc\u30bf\u306e\u4e21\u65b9\u3092\u4f1d\u9054\u3057\u307e\u3059\u3002<\/p>\n<p><\/p>\n<ul><\/p>\n<li>PDU\u306b\u306f\u3001\u30b9\u30e0\u30fc\u30ba\u306a\u4f1d\u9001\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u305f\u3081\u306e\u30a2\u30c9\u30ec\u30b9\u6307\u5b9a\u3068\u30b7\u30fc\u30b1\u30f3\u30b9\u306e\u8a73\u7d30\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002<\/li>\n<p><\/p>\n<li>\u30a8\u30e9\u30fc\u30c1\u30a7\u30c3\u30af\u3068\u518d\u9001\u4fe1\u6a5f\u80fd <a href=\"https:\/\/www.newsunnpdu.com\/products\/\" target=\"_blank\" rel=\"noopener\">PDU\u30cd\u30c3\u30c8\u30ef\u30fc\u30ad\u30f3\u30b0<\/a> 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\u30a2\u30c9\u30ec\u30b9\u3084\u30a8\u30e9\u30fc\u30c1\u30a7\u30c3\u30af\u306a\u3069\u306e\u91cd\u8981\u306a\u5236\u5fa1\u60c5\u5831\u306b\u3088\u308a\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u30a8\u30e9\u30fc\u306a\u3057\u3067\u9069\u5207\u306a\u5834\u6240\u306b\u5230\u9054\u3059\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/li>\n<p><\/p>\n<li>\u5404\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30ec\u30a4\u30e4\u30fc\u306f\u3001\u72ec\u81ea\u306e\u30d8\u30c3\u30c0\u30fc\u307e\u305f\u306f\u30c8\u30ec\u30fc\u30e9\u30fc\u3092\u8ffd\u52a0\u3057\u3066PDU\u3092\u5f62\u6210\u3057\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u4ecb\u3057\u3066\u79fb\u52d5\u3059\u308b\u30c7\u30fc\u30bf\u3092\u6574\u7406\u304a\u3088\u3073\u4fdd\u8b77\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/li>\n<p><\/p>\n<li>PDU\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u554f\u984c\u3092\u3088\u308a\u901f\u304f\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u3001\u7570\u306a\u308b\u30c7\u30d0\u30a4\u30b9\u3068\u30d7\u30ed\u30c8\u30b3\u30eb\u9593\u306e\u30b9\u30e0\u30fc\u30ba\u306a\u901a\u4fe1\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u307e\u3059\u3002<\/li>\n<p><\/ul>\n<p><\/p>\n<h2>PDU\u30cd\u30c3\u30c8\u30ef\u30fc\u30ad\u30f3\u30b0\u306e\u7406\u89e3<\/h2>\n<p><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/statics.mylandingpages.co\/static\/aaanxdmf26c522mpaaaaz2wwe7ppkact\/image\/40cb1ce2db694b6da72774012973895e.webp\" alt=\"PDU\u30cd\u30c3\u30c8\u30ef\u30fc\u30ad\u30f3\u30b0\u306e\u7406\u89e3\" \/><\/p>\n<p><\/p>\n<h3>\u30cd\u30c3\u30c8\u30ef\u30fc\u30ad\u30f3\u30b0\u306ePDU\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h3>\n<p><\/p>\n<p>\u30d7\u30ed\u30c8\u30b3\u30eb\u30c7\u30fc\u30bf\u30e6\u30cb\u30c3\u30c8\uff08PDU\uff09\u306f\u3001\u968e\u5c64\u5316\u3055\u308c\u305f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306e\u7279\u5b9a\u306e\u30ec\u30a4\u30e4\u30fc\u3067\u30d4\u30a2\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u9593\u3067\u4ea4\u63db\u3055\u308c\u308b\u69cb\u9020\u5316\u30c7\u30fc\u30bf\u30e6\u30cb\u30c3\u30c8\u3068\u3057\u3066\u6a5f\u80fd\u3057\u307e\u3059\u3002\u30cd\u30c3\u30c8\u30ef\u30fc\u30ad\u30f3\u30b0\u6a19\u6e96\u7d44\u7e54\u306f\u3001\u4e0a\u8a18\u306e\u30ec\u30a4\u30e4\u30fc\u304b\u3089\u53d7\u3051\u53d6\u3063\u305f\u30b5\u30fc\u30d3\u30b9\u30c7\u30fc\u30bf\u30e6\u30cb\u30c3\u30c8\uff08SDU\uff09\u306b\u30d7\u30ed\u30c8\u30b3\u30eb\u56fa\u6709\u306e\u5236\u5fa1\u60c5\u5831\u3092\u8ffd\u52a0\u3057\u305f\u7d50\u679c\u3068\u3057\u3066PDU\u3092\u5b9a\u7fa9\u3057\u3066\u3044\u307e\u3059\u3002\u30ab\u30d7\u30bb\u30eb\u5316\u3068\u547c\u3070\u308c\u308b\u3053\u306e\u30d7\u30ed\u30bb\u30b9\u306b\u3088\u308a\u30011\u3064\u306e\u5c64\u306e\u5404PDU\u304c\u6b21\u306e\u4e0b\u5c64\u306eSDU\u306b\u306a\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002 PDU\u306b\u306f\u3001\u30d7\u30ed\u30c8\u30b3\u30eb\u304c\u6a5f\u80fd\u3059\u308b\u305f\u3081\u306b\u5fc5\u8981\u306a\u30a2\u30c9\u30ec\u30b9\u6307\u5b9a\u3001\u30a8\u30e9\u30fc\u30c1\u30a7\u30c3\u30af\u3001\u304a\u3088\u3073\u5236\u5fa1\u30c7\u30fc\u30bf\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><\/p>\n<blockquote><p><\/p>\n<p>PDU\u306f\u3001\u30a2\u30c9\u30ec\u30b9\u4ed8\u304d\u306e\u5c01\u7b52\u306b\u5165\u308c\u3089\u308c\u305f\u624b\u7d19\u3068\u8003\u3048\u3066\u304f\u3060\u3055\u3044\u3002\u5404\u30ec\u30a4\u30e4\u30fc\u306f\u72ec\u81ea\u306e\u300c\u30a8\u30f3\u30d9\u30ed\u30fc\u30d7\u300d\u3068\u30a2\u30c9\u30ec\u30b9\u6307\u5b9a\u3092\u8ffd\u52a0\u3057\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u5b9b\u5148\u306b\u6b63\u3057\u304f\u5230\u9054\u3059\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/p>\n<p><\/p><\/blockquote>\n<p><\/p>\n<ul><\/p>\n<li>\u30d7\u30ed\u30c8\u30b3\u30eb\u30c7\u30fc\u30bf\u30e6\u30cb\u30c3\u30c8\u306f\u3001\u6307\u5b9a\u3055\u308c\u305f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u4ecb\u3057\u3066\u901a\u4fe1\u3059\u308b\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u9593\u306e\u30c7\u30fc\u30bf\u4ea4\u63db\u306e\u57fa\u672c\u5358\u4f4d\u3067\u3059\u3002<\/li>\n<p><\/p>\n<li>PDU\u306f\u3001\u5404\u30ec\u30a4\u30e4\u30fc\u306b\u72ec\u81ea\u306ePDU\u30bf\u30a4\u30d7\uff08IP\u7528\u306e\u30d1\u30b1\u30c3\u30c8\u3001TCP\u306e\u30bb\u30b0\u30e1\u30f3\u30c8\uff09\u306a\u3069\u306e\u5c64\u72b6\u30d7\u30ed\u30c8\u30b3\u30eb\u30e2\u30c7\u30eb\u5185\u3067\u5b9a\u7fa9\u3055\u308c\u307e\u3059\u3002<\/li>\n<p><\/p>\n<li>PDU\u306b\u306f\u3001\u30d7\u30ed\u30c8\u30b3\u30eb\u30d8\u30c3\u30c0\u30fc\u3001\u30da\u30a4\u30ed\u30fc\u30c9\u3001\u6642\u306b\u306f\u30c8\u30ec\u30fc\u30e9\u30fc\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002<\/li>\n<p><\/p>\n<li>\u30ab\u30d7\u30bb\u30eb\u5316\u30d7\u30ed\u30bb\u30b9\u306f\u3001\u5fc5\u8981\u306a\u30d7\u30ed\u30c8\u30b3\u30eb\u56fa\u6709\u306e\u30e1\u30bf\u30c7\u30fc\u30bf\u3092SDU\u306b\u8ffd\u52a0\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u3001PDU\u3092\u5f62\u6210\u3057\u307e\u3059\u3002<\/li>\n<p><\/p>\n<li>\u30d7\u30ed\u30c8\u30b3\u30eb\u4ed5\u69d8\u306f\u3001PDU\u306e\u5f62\u5f0f\u3068\u95a2\u6570\u3092\u6c7a\u5b9a\u3057\u3001\u6e96\u62e0\u3057\u305f\u5b9f\u88c5\u9593\u306e\u76f8\u4e92\u904b\u7528\u6027\u3092\u78ba\u4fdd\u3057\u307e\u3059\u3002<\/li>\n<p><\/ul>\n<p><\/p>\n<h3>PDU\u306e\u69cb\u9020\uff1a\u30d8\u30c3\u30c0\u30fc\u3001\u30da\u30a4\u30ed\u30fc\u30c9\u3001\u304a\u3088\u3073\u30c8\u30ec\u30fc\u30e9\u30fc<\/h3>\n<p><\/p>\n<p>\u5404PDU\u306f\u3001\u30d8\u30c3\u30c0\u30fc\u3001\u30da\u30a4\u30ed\u30fc\u30c9\u3001\u5834\u5408\u306b\u3088\u3063\u3066\u306f\u30c8\u30ec\u30fc\u30e9\u30fc\u306e3\u3064\u306e\u4e3b\u8981\u306a\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3067\u69cb\u6210\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u30d8\u30c3\u30c0\u30fc\u306b\u306f\u3001\u30bd\u30fc\u30b9\u304a\u3088\u3073\u5b9b\u5148\u30a2\u30c9\u30ec\u30b9\u3001\u30b7\u30fc\u30b1\u30f3\u30b9\u3001\u30d5\u30e9\u30b0\u3001\u30a8\u30e9\u30fc\u30c1\u30a7\u30c3\u30af\u30b3\u30fc\u30c9\u306a\u3069\u306e\u5236\u5fa1\u60c5\u5831\u304c\u642d\u8f09\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u60c5\u5831\u306f\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3001\u30a8\u30e9\u30fc\u691c\u51fa\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u9806\u5e8f\u306e\u7ba1\u7406\u306b\u4e0d\u53ef\u6b20\u3067\u3059\u3002\u30da\u30a4\u30ed\u30fc\u30c9\u306b\u306f\u3001\u5b9f\u969b\u306e\u30e6\u30fc\u30b6\u30fc\u30c7\u30fc\u30bf\u307e\u305f\u306f\u9ad8\u30ec\u30a4\u30e4\u30fc\u304b\u3089\u306e\u30ab\u30d7\u30bb\u30eb\u5316\u3055\u308c\u305f\u30c7\u30fc\u30bf\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002\u4e3b\u306b\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u30ec\u30a4\u30e4\u30fc\u3067\u4f7f\u7528\u3055\u308c\u308b\u4e88\u544a\u7de8\u306b\u306f\u3001\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081\u306b\u3001\u74b0\u72b6\u5197\u9577\u30c1\u30a7\u30c3\u30af\uff08CRC\uff09\u306a\u3069\u306e\u30a8\u30e9\u30fc\u30c1\u30a7\u30c3\u30af\u30e1\u30ab\u30cb\u30ba\u30e0\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><\/p>\n<p>\u901a\u5e38\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30d1\u30b1\u30c3\u30c8\u306f\u3053\u306e\u69cb\u9020\u306b\u5f93\u3044\u307e\u3059:<\/p>\n<p><\/p>\n<ul><\/p>\n<li><strong>\u30d8\u30c3\u30c0:<\/strong> \u30d1\u30b1\u30c3\u30c8\u306e\u9577\u3055\u3001\u540c\u671f\u30d3\u30c3\u30c8\u3001\u30d1\u30b1\u30c3\u30c8\u756a\u53f7\u3001\u30d7\u30ed\u30c8\u30b3\u30eb\u30bf\u30a4\u30d7\u3001\u30bd\u30fc\u30b9\/\u5b9b\u5148\u30a2\u30c9\u30ec\u30b9\u306a\u3069\u306e\u624b\u9806\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002\u30eb\u30fc\u30bf\u30fc\u306f\u3053\u306e\u60c5\u5831\u3092\u4f7f\u7528\u3057\u3066\u30d1\u30b1\u30c3\u30c8\u3092\u8ee2\u9001\u3057\u307e\u3059\u3002<\/li>\n<p><\/p>\n<li><strong>\u30da\u30a4\u30ed\u30fc\u30c9:<\/strong> \u96fb\u5b50\u30e1\u30fc\u30eb\u3084\u30d3\u30c7\u30aa\u306e\u4e00\u90e8\u306a\u3069\u3001\u5b9f\u969b\u306e\u30c7\u30fc\u30bf\u304c\u914d\u4fe1\u3055\u308c\u307e\u3059\u3002<\/li>\n<p><\/p>\n<li><strong>\u30c8\u30ec\u30fc\u30e9\u30fc:<\/strong> \u30d1\u30b1\u30c3\u30c8\u306e\u7d42\u308f\u308a\u3092\u4fe1\u53f7\u3057\u3001\u591a\u304f\u306e\u5834\u5408\u3001CRC\u306e\u3088\u3046\u306a\u30a8\u30e9\u30fc\u30c1\u30a7\u30c3\u30af\u30c7\u30fc\u30bf\u304c\u542b\u307e\u308c\u307e\u3059\u3002\u53d7\u4fe1\u30c7\u30d0\u30a4\u30b9\u306f\u3001\u5143\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u518d\u7d44\u307f\u7acb\u3066\u3059\u308b\u524d\u306b\u3001\u30c8\u30ec\u30fc\u30e9\u30fc\u3092\u4f7f\u7528\u3057\u3066\u6b63\u3057\u3055\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/li>\n<p><\/ul>\n<p><\/p>\n<p>\u30cd\u30c3\u30c8\u30ef\u30fc\u30afPDU\u306e\u30d8\u30c3\u30c0\u30fc\u306f\u3001\u30d7\u30ed\u30c8\u30b3\u30eb\u3068OSI\u5c64\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001IP\u30d8\u30c3\u30c0\u30fc\u306b\u306f\u3001\u30bd\u30fc\u30b9\u304a\u3088\u3073\u5b9b\u5148\u30a2\u30c9\u30ec\u30b9\u3001\u5bff\u547d\u307e\u3067\u306e\u6642\u9593\uff08TTL\uff09\u3001\u304a\u3088\u3073\u30d7\u30ed\u30c8\u30b3\u30eb\u30bf\u30a4\u30d7\u304c\u542b\u307e\u308c\u307e\u3059\u3002\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u30ec\u30a4\u30e4\u30fc\u306e\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u30d5\u30ec\u30fc\u30e0\u306b\u306f\u3001\u30ed\u30fc\u30ab\u30eb\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u901a\u4fe1\u304a\u3088\u3073\u30a8\u30e9\u30fc\u691c\u51fa\u306e\u305f\u3081\u306eMAC\u30a2\u30c9\u30ec\u30b9\u3068CRC\u30c8\u30ec\u30fc\u30e9\u30fc\u304c\u542b\u307e\u308c\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u9055\u3044\u306f\u3001\u5404\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u76ee\u7684\u3068\u305d\u308c\u3089\u304c\u52d5\u4f5c\u3059\u308bOSI\u5c64\u3092\u53cd\u6620\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><\/p>\n<h3>OSI\u304a\u3088\u3073TCP\/IP\u30e2\u30c7\u30eb\u306ePDU\u30bf\u30a4\u30d7<\/h3>\n<p><\/p>\n<p>OSI\u3068TCP\/IP\u30e2\u30c7\u30eb\u306e\u4e21\u65b9\u304c\u3001PDU\u3092\u4f7f\u7528\u3057\u3066\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u30bf\u30c3\u30af\u3092\u4ecb\u3057\u3066\u79fb\u52d5\u3059\u308b\u30c7\u30fc\u30bf\u3092\u8868\u3057\u307e\u3059\u3002\u5404\u30ec\u30a4\u30e4\u30fc\u306f\u3001\u30ab\u30d7\u30bb\u30eb\u5316\u30d7\u30ed\u30bb\u30b9\u3068\u305d\u306e\u30ec\u30a4\u30e4\u30fc\u306e\u95a2\u6570\u3092\u53cd\u6620\u3057\u3066\u3001\u7279\u5b9a\u306e\u540d\u524d\u3092PDU\u306b\u5272\u308a\u5f53\u3066\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001OSI\u30e2\u30c7\u30eb\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30ec\u30a4\u30e4\u30fc\uff08\u30ec\u30a4\u30e4\u30fc3\uff09\u3067\u306f\u3001PDU\u306f\u30d1\u30b1\u30c3\u30c8\u3068\u547c\u3070\u308c\u307e\u3059\u3002\u3053\u306e\u30d1\u30b1\u30c3\u30c8\u306f\u3001\u30bd\u30fc\u30b9\u3084\u5b9b\u5148IP\u30a2\u30c9\u30ec\u30b9\u306a\u3069\u306e\u30d8\u30c3\u30c0\u30fc\u60c5\u5831\u3092\u4f7f\u7528\u3057\u3066\u30c7\u30fc\u30bf\u3092\u30ab\u30d7\u30bb\u30eb\u5316\u3057\u307e\u3059\u3002\u8f38\u9001\u5c64\uff08\u30ec\u30a4\u30e4\u30fc4\uff09\u3067\u306f\u3001PDU\u306f\u30bb\u30b0\u30e1\u30f3\u30c8\u3068\u3057\u3066\u77e5\u3089\u308c\u3066\u304a\u308a\u3001\u4f1d\u9001\u306e\u305f\u3081\u306b\u30c7\u30fc\u30bf\u3092\u5c0f\u3055\u306a\u90e8\u5206\u306b\u5206\u5272\u3057\u307e\u3059\u3002 TCP\u304a\u3088\u3073UDP\u30d7\u30ed\u30c8\u30b3\u30eb\u306f\u3001\u305d\u308c\u305e\u308c\u30bb\u30b0\u30e1\u30f3\u30c8\u3068\u30c7\u30fc\u30bf\u30b0\u30e9\u30e0\u3092\u4f7f\u7528\u3057\u3066\u3001\u901a\u4fe1\u3092\u7ba1\u7406\u3057\u3001\u30dd\u30fc\u30c8\u756a\u53f7\u3092\u4f7f\u7528\u3057\u3066\u30d7\u30ed\u30bb\u30b9\u3092\u533a\u5225\u3057\u307e\u3059\u3002<\/p>\n<p><\/p>\n<p>TCP\/IP\u30e2\u30c7\u30eb\u306f\u3001\u3088\u308a\u5c11\u306a\u3044\u5c64\u3092\u6301\u3064\u4e00\u65b9\u3067\u3001PDU\u30bf\u30a4\u30d7\u3092OSI\u30e2\u30c7\u30eb\u306e\u578b\u3068\u5bc6\u63a5\u306b\u63c3\u3048\u307e\u3059\u3002\u30ab\u30d7\u30bb\u30eb\u5316\u30d7\u30ed\u30bb\u30b9\u306b\u306f\u3001\u5404\u30ec\u30a4\u30e4\u30fc\u3067\u30d7\u30ed\u30c8\u30b3\u30eb\u56fa\u6709\u306e\u60c5\u5831\u3067\u30c7\u30fc\u30bf\u3092\u5305\u3080\u3053\u3068\u304c\u542b\u307e\u308c\u3001\u305d\u308c\u306b\u5fdc\u3058\u3066PDU\u30bf\u30a4\u30d7\u3092\u5909\u66f4\u3057\u307e\u3059\u3002\u3053\u306e\u69cb\u9020\u306f\u3001\u591a\u69d8\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u74b0\u5883\u5168\u4f53\u3067\u52b9\u7387\u7684\u3067\u4fe1\u983c\u6027\u304c\u9ad8\u304f\u3001\u6b63\u78ba\u306a\u30c7\u30fc\u30bf\u9001\u4fe1\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002<\/p>\n<p><\/p>\n<h3>\u30af\u30a4\u30c3\u30af\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u30c6\u30fc\u30d6\u30eb\uff1a\u30ec\u30a4\u30e4\u30fc\u3054\u3068\u306ePDU\u540d<\/h3>\n<p><\/p>\n<p>\u6b21\u306e\u30c6\u30fc\u30d6\u30eb\u306f\u3001OSI\u304a\u3088\u3073TCP\/IP\u30e2\u30c7\u30eb\u306e\u5404\u5c64\u3067PDU\u540d\u306e\u5305\u62ec\u7684\u306a\u53c2\u7167\u3092\u63d0\u4f9b\u3057\u307e\u3059:<\/p>\n<p><\/p>\n<table><\/p>\n<thead><\/p>\n<tr><\/p>\n<th>\u30e2\u30c7\u30eb<\/th>\n<p><\/p>\n<th>\u30ec\u30a4\u30e4\u30fc\u540d<\/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>TCP\/IP<\/td>\n<p><\/p>\n<td>\u5fdc\u7528<\/td>\n<p><\/p>\n<td>\u30c7\u30fc\u30bf<\/td>\n<p><\/tr>\n<p><\/p>\n<tr><\/p>\n<td>TCP\/IP<\/td>\n<p><\/p>\n<td>\u8f38\u9001<\/td>\n<p><\/p>\n<td>\u30bb\u30b0\u30e1\u30f3\u30c8<\/td>\n<p><\/tr>\n<p><\/p>\n<tr><\/p>\n<td>TCP\/IP<\/td>\n<p><\/p>\n<td>\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8<\/td>\n<p><\/p>\n<td>\u30d1\u30b1\u30c3\u30c8<\/td>\n<p><\/tr>\n<p><\/p>\n<tr><\/p>\n<td>TCP\/IP<\/td>\n<p><\/p>\n<td>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30af\u30bb\u30b9<\/td>\n<p><\/p>\n<td>\u30d5\u30ec\u30fc\u30e0<\/td>\n<p><\/tr>\n<p><\/p>\n<tr><\/p>\n<td>TCP\/IP<\/td>\n<p><\/p>\n<td>\u7269\u7406\u7684\u306a<\/td>\n<p><\/p>\n<td>\u30d3\u30c3\u30c8<\/td>\n<p><\/tr>\n<p><\/p>\n<tr><\/p>\n<td>OSI<\/td>\n<p><\/p>\n<td>\u5fdc\u7528<\/td>\n<p><\/p>\n<td>\u30c7\u30fc\u30bf<\/td>\n<p><\/tr>\n<p><\/p>\n<tr><\/p>\n<td>OSI<\/td>\n<p><\/p>\n<td>\u30d7\u30ec\u30bc\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3<\/td>\n<p><\/p>\n<td>\u30c7\u30fc\u30bf<\/td>\n<p><\/tr>\n<p><\/p>\n<tr><\/p>\n<td>OSI<\/td>\n<p><\/p>\n<td>\u30bb\u30c3\u30b7\u30e7\u30f3<\/td>\n<p><\/p>\n<td>\u30c7\u30fc\u30bf<\/td>\n<p><\/tr>\n<p><\/p>\n<tr><\/p>\n<td>OSI<\/td>\n<p><\/p>\n<td>\u8f38\u9001<\/td>\n<p><\/p>\n<td>\u30bb\u30b0\u30e1\u30f3\u30c8<\/td>\n<p><\/tr>\n<p><\/p>\n<tr><\/p>\n<td>OSI<\/td>\n<p><\/p>\n<td>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af<\/td>\n<p><\/p>\n<td>\u30d1\u30b1\u30c3\u30c8<\/td>\n<p><\/tr>\n<p><\/p>\n<tr><\/p>\n<td>OSI<\/td>\n<p><\/p>\n<td>\u30c7\u30fc\u30bf\u30ea\u30f3\u30af<\/td>\n<p><\/p>\n<td>\u30d5\u30ec\u30fc\u30e0<\/td>\n<p><\/tr>\n<p><\/p>\n<tr><\/p>\n<td>OSI<\/td>\n<p><\/p>\n<td>\u7269\u7406\u7684\u306a<\/td>\n<p><\/p>\n<td>\u30d3\u30c3\u30c8<\/td>\n<p><\/tr>\n<p><\/tbody>\n<p><\/table>\n<p><\/p>\n<p>\u5225\u306e\u30c6\u30fc\u30d6\u30eb\u306f\u3001\u30ad\u30fc\u30ec\u30a4\u30e4\u30fc\u3067\u306ePDU\u306e\u7279\u5b9a\u306e\u540d\u524d\u3068\u95a2\u6570\u3092\u5f37\u8abf\u3057\u3066\u3044\u307e\u3059:<\/p>\n<p><\/p>\n<table><\/p>\n<thead><\/p>\n<tr><\/p>\n<th>OSI\/TCP-IP\u5c64<\/th>\n<p><\/p>\n<th>\u30d7\u30ed\u30c8\u30b3\u30eb\u30c7\u30fc\u30bf\u30e6\u30cb\u30c3\u30c8\uff08PDU\uff09\u540d<\/th>\n<p><\/p>\n<th>\u8aac\u660e\/\u95a2\u6570\u306e\u30cf\u30a4\u30e9\u30a4\u30c8<\/th>\n<p><\/tr>\n<p><\/thead>\n<p><\/p>\n<tbody><\/p>\n<tr><\/p>\n<td>\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u30ec\u30a4\u30e4\u30fc<\/td>\n<p><\/p>\n<td>\u30d5\u30ec\u30fc\u30e0<\/td>\n<p><\/p>\n<td>Mac\u30a2\u30c9\u30ec\u30b9\u3001\u30bf\u30a4\u30d7\/\u9577\u3055\u3001\u30c7\u30fc\u30bf\u30da\u30a4\u30ed\u30fc\u30c9\u3001FCS\u304c\u542b\u307e\u308c\u307e\u3059<\/td>\n<p><\/tr>\n<p><\/p>\n<tr><\/p>\n<td>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30ec\u30a4\u30e4\u30fc<\/td>\n<p><\/p>\n<td>\u30d1\u30b1\u30c3\u30c8<\/td>\n<p><\/p>\n<td>IP\u30a2\u30c9\u30ec\u30b9\u3001TTL\u3001\u30d7\u30ed\u30c8\u30b3\u30eb\u60c5\u5831\u3001\u30d8\u30c3\u30c0\u30fc\u30c1\u30a7\u30c3\u30af\u30b5\u30e0\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059<\/td>\n<p><\/tr>\n<p><\/p>\n<tr><\/p>\n<td>\u8f38\u9001\u5c64\uff08TCP)<\/td>\n<p><\/p>\n<td>\u30bb\u30b0\u30e1\u30f3\u30c8<\/td>\n<p><\/p>\n<td>\u30dd\u30fc\u30c8\u756a\u53f7\u3001\u30b7\u30fc\u30b1\u30f3\u30b9\/\u78ba\u8a8d\u756a\u53f7\u3001\u30d5\u30e9\u30b0\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059<\/td>\n<p><\/tr>\n<p><\/p>\n<tr><\/p>\n<td>\u8f38\u9001\u5c64\uff08udp)<\/td>\n<p><\/p>\n<td>\u30c7\u30fc\u30bf\u30b0\u30e9\u30e0<\/td>\n<p><\/p>\n<td>\u30dd\u30fc\u30c8\u756a\u53f7\u3001\u9577\u3055\u3001\u30c1\u30a7\u30c3\u30af\u30b5\u30e0\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059<\/td>\n<p><\/tr>\n<p><\/p>\n<tr><\/p>\n<td>\u30bb\u30c3\u30b7\u30e7\u30f3\u30ec\u30a4\u30e4\u30fc<\/td>\n<p><\/p>\n<td>\u30c7\u30fc\u30bf<\/td>\n<p><\/p>\n<td>\u30bb\u30c3\u30b7\u30e7\u30f3\u3001\u540c\u671f\u3001\u30c0\u30a4\u30a2\u30ed\u30b0\u5236\u5fa1\u3092\u7ba1\u7406\u3057\u307e\u3059<\/td>\n<p><\/tr>\n<p><\/p>\n<tr><\/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<\/td>\n<p><\/p>\n<td>\u30c7\u30fc\u30bf\u5909\u63db\u3001\u6697\u53f7\u5316\u3001\u5727\u7e2e\u3092\u51e6\u7406\u3057\u307e\u3059<\/td>\n<p><\/tr>\n<p><\/p>\n<tr><\/p>\n<td>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30ec\u30a4\u30e4\u30fc<\/td>\n<p><\/p>\n<td>\u30c7\u30fc\u30bf<\/td>\n<p><\/p>\n<td>HTTP\u30e1\u30c3\u30bb\u30fc\u30b8\u3001\u96fb\u5b50\u30e1\u30fc\u30eb\u306a\u3069\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u751f\u6210\u3055\u308c\u305f\u30c7\u30fc\u30bf\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059<\/td>\n<p><\/tr>\n<p><\/tbody>\n<p><\/table>\n<p><\/p>\n<p>\u3053\u308c\u3089\u306e\u30c6\u30fc\u30d6\u30eb\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u5c02\u9580\u5bb6\u3068\u5b66\u751f\u304c\u5404\u30ec\u30a4\u30e4\u30fc\u3067\u6b63\u3057\u3044PDU\u30bf\u30a4\u30d7\u3092\u3059\u3070\u3084\u304f\u8b58\u5225\u3057\u3001\u52b9\u679c\u7684\u306a\u30b5\u30dd\u30fc\u30c8\u3092\u652f\u63f4\u3057\u307e\u3059 <a href=\"https:\/\/www.newsunnpdu.com\/products\/\" target=\"_blank\" rel=\"noopener\">PDU\u30cd\u30c3\u30c8\u30ef\u30fc\u30ad\u30f3\u30b0<\/a> \u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u3002<\/p>\n<p><\/p>\n<h2>PDU\u30cd\u30c3\u30c8\u30ef\u30fc\u30ad\u30f3\u30b0\u304c\u30b3\u30df\u30e5\u30cb\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u65b9\u6cd5<\/h2>\n<p><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/statics.mylandingpages.co\/static\/aaanxdmf26c522mpaaaaz2wwe7ppkact\/image\/b5b5ead69f8e44918860f44288dea271.webp\" alt=\"PDU\u30cd\u30c3\u30c8\u30ef\u30fc\u30ad\u30f3\u30b0\u304c\u30b3\u30df\u30e5\u30cb\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u65b9\u6cd5\" \/><\/p>\n<p><\/p>\n<h3>\u30ab\u30d7\u30bb\u30eb\u5316\u3068\u8131\u30ab\u30d7\u30bb\u30eb\u5316\u30d7\u30ed\u30bb\u30b9<\/h3>\n<p><\/p>\n<p>\u30ab\u30d7\u30bb\u30eb\u5316\u3068\u8131\u30ab\u30d7\u30bb\u30eb\u5316\u306f\u3001\u30d0\u30c3\u30af\u30dc\u30fc\u30f3\u3092\u5f62\u6210\u3057\u307e\u3059 <a href=\"https:\/\/www.newsunnpdu.com\/products\/\" target=\"_blank\" rel=\"noopener\">PDU\u30cd\u30c3\u30c8\u30ef\u30fc\u30ad\u30f3\u30b0<\/a>\u3002\u30ab\u30d7\u30bb\u30eb\u5316\u4e2d\u3001\u5404\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30ec\u30a4\u30e4\u30fc\u306f\u72ec\u81ea\u306e\u30d8\u30c3\u30c0\u30fc\u3068\u30c8\u30ec\u30fc\u30e9\u30fc\u3067\u30c7\u30fc\u30bf\u3092\u30e9\u30c3\u30d7\u3057\u3001\u30bb\u30b0\u30e1\u30f3\u30c8\u3001\u30d1\u30b1\u30c3\u30c8\u3001\u30d5\u30ec\u30fc\u30e0\u306a\u3069\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u30c7\u30fc\u30bf\u30e6\u30cb\u30c3\u30c8\uff08PDU\uff09\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306ePDU\u306f\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3001\u30a2\u30c9\u30ec\u30b9\u6307\u5b9a\u3001\u304a\u3088\u3073\u30a8\u30e9\u30fc\u30c1\u30a7\u30c3\u30af\u306e\u305f\u3081\u306e\u5143\u306e\u30c7\u30fc\u30bf\u3068\u91cd\u8981\u306a\u5236\u5fa1\u60c5\u5831\u306e\u4e21\u65b9\u3092\u642d\u8f09\u3057\u3066\u3044\u307e\u3059\u3002\u9001\u4fe1\u8005\u5074\u3067\u306f\u3001\u30c7\u30fc\u30bf\u306f\u30ec\u30a4\u30e4\u30fc\u3092\u4e0b\u3063\u3066\u79fb\u52d5\u3057\u3001\u5404\u30b9\u30c6\u30c3\u30d7\u3067\u65b0\u3057\u3044\u30d8\u30c3\u30c0\u30fc\u3068\u30c8\u30ec\u30fc\u30e9\u30fc\u3092\u7372\u5f97\u3057\u307e\u3059\u3002\u3053\u306e\u30d7\u30ed\u30bb\u30b9\u306f\u3001\u5404\u30ec\u30a4\u30e4\u30fc\u304c\u5bfe\u5fdc\u3059\u308b\u30d8\u30c3\u30c0\u30fc\u3068\u30c8\u30ec\u30fc\u30e9\u30fc\u3092\u524a\u9664\u3057\u3066\u5143\u306e\u30c7\u30fc\u30bf\u3092\u53d6\u5f97\u3059\u308b\u30ec\u30b7\u30fc\u30d0\u30fc\u5074\u3067\u9006\u8ee2\u3057\u307e\u3059\u3002\u3053\u306e\u69cb\u9020\u5316\u3055\u308c\u305f\u30a2\u30d7\u30ed\u30fc\u30c1\u306b\u3088\u308a\u3001\u3059\u3079\u3066\u306e\u30ec\u30a4\u30e4\u30fc\u304c\u30c7\u30fc\u30bf\u3092\u6b63\u3057\u304f\u51e6\u7406\u304a\u3088\u3073\u8ee2\u9001\u3067\u304d\u308b\u3053\u3068\u3092\u4fdd\u8a3c\u3057\u3001\u30b3\u30df\u30e5\u30cb\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u4fe1\u983c\u6027\u304c\u9ad8\u304f\u52b9\u7387\u7684\u306b\u3057\u307e\u3059\u3002<\/p>\n<p><\/p>\n<blockquote><p><\/p>\n<p>\u30ab\u30d7\u30bb\u30eb\u5316\u3068\u8131\u30ab\u30d7\u30bb\u30eb\u5316\u306b\u3088\u308a\u3001\u5404\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30ec\u30a4\u30e4\u30fc\u306f\u7279\u5b9a\u306e\u30bf\u30b9\u30af\u306b\u7126\u70b9\u3092\u5408\u308f\u305b\u3001\u591a\u69d8\u306a\u30b7\u30b9\u30c6\u30e0\u5168\u4f53\u3067\u30b7\u30fc\u30e0\u30ec\u30b9\u306a\u30c7\u30fc\u30bf\u8ee2\u9001\u3092\u78ba\u4fdd\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><\/p><\/blockquote>\n<p><\/p>\n<h3>\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u3068\u76f8\u4e92\u904b\u7528\u6027\u306b\u304a\u3051\u308bPDU\u306e\u91cd\u8981\u6027<\/h3>\n<p><\/p>\n<p>PDU\u306f\u3001\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u3092\u7dad\u6301\u3059\u308b\u4e0a\u3067\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002\u5404PDU\u306b\u306f\u3001\u30a2\u30c9\u30ec\u30b9\u6307\u5b9a\u3068\u30b7\u30fc\u30b1\u30f3\u30b9\u306e\u8a73\u7d30\u3092\u5099\u3048\u305f\u30d8\u30c3\u30c0\u30fc\u3001\u30c1\u30a7\u30c3\u30af\u30b5\u30e0\u3084\u5468\u671f\u7684\u5197\u9577\u30c1\u30a7\u30c3\u30af\uff08CRC\uff09\u306a\u3069\u306e\u30a8\u30e9\u30fc\u30c1\u30a7\u30c3\u30af\u30b3\u30fc\u30c9\u3092\u5099\u3048\u305f\u30c8\u30ec\u30fc\u30e9\u30fc\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u6a5f\u80fd\u306f\u3001\u30da\u30a4\u30ed\u30fc\u30c9\u304c\u305d\u306e\u307e\u307e\u5c4a\u304f\u3088\u3046\u306b\u3001\u30a8\u30e9\u30fc\u3092\u691c\u51fa\u304a\u3088\u3073\u4fee\u6b63\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002 PDU\u306f\u3001\u5404\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30ec\u30a4\u30e4\u30fc\u306e\u30c7\u30fc\u30bf\u5f62\u5f0f\u3082\u6a19\u6e96\u5316\u3059\u308b\u305f\u3081\u3001\u7570\u306a\u308b\u30c7\u30d0\u30a4\u30b9\u3068\u30d7\u30ed\u30c8\u30b3\u30eb\u9593\u306e\u76f8\u4e92\u904b\u7528\u6027\u3092\u53ef\u80fd\u306b\u3057\u307e\u3059\u3002\u3053\u306e\u6a19\u6e96\u5316\u306b\u3088\u308a\u3001PDU\u30cd\u30c3\u30c8\u30ef\u30fc\u30ad\u30f3\u30b0\u306f\u3001\u3055\u307e\u3056\u307e\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u74b0\u5883\u5168\u4f53\u306e\u30b9\u30e0\u30fc\u30ba\u306a\u30c7\u30fc\u30bf\u30d5\u30ed\u30fc\u3092\u30b5\u30dd\u30fc\u30c8\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><\/p>\n<ul><\/p>\n<li>PDUS\u306f\u3001\u69cb\u9020\u5316\u3055\u308c\u305f\u30c7\u30fc\u30bf\u5f62\u5f0f\u3092\u5b9a\u7fa9\u3057\u3001\u901a\u4fe1\u3092\u6a19\u6e96\u5316\u3057\u307e\u3059\u3002<\/li>\n<p><\/p>\n<li>\u30ab\u30d7\u30bb\u30eb\u5316\u3068\u8131\u30ab\u30d7\u30bb\u30eb\u5316\u3092\u53ef\u80fd\u306b\u3057\u3001\u6b63\u3057\u3044\u30c7\u30fc\u30bf\u30d1\u30c3\u30b1\u30fc\u30b8\u3092\u78ba\u4fdd\u3057\u307e\u3059\u3002<\/li>\n<p><\/p>\n<li>PDU\u306f\u3001\u6a19\u6e96\u5316\u3055\u308c\u305f\u5f62\u5f0f\u3092\u9806\u5b88\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u3001\u76f8\u4e92\u904b\u7528\u6027\u3092\u4fc3\u9032\u3057\u307e\u3059\u3002<\/li>\n<p><\/ul>\n<p><\/p>\n<h3>\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u304a\u3088\u3073\u30d7\u30ed\u30c8\u30b3\u30eb\u5206\u6790\u306ePDU<\/h3>\n<p><\/p>\n<p>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u5c02\u9580\u5bb6\u306f\u3001\u591a\u304f\u306e\u5834\u5408\u3001\u7279\u306b\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u30ec\u30a4\u30e4\u30fc\u3067PDU\u3092\u5206\u6790\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u3001\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u958b\u59cb\u3057\u307e\u3059\u3002\u3053\u306e\u30ec\u30a4\u30e4\u30fc\u306e\u30d5\u30ec\u30fc\u30e0\u306b\u306f\u3001CRC\u3084\u30d5\u30ec\u30fc\u30e0\u30c1\u30a7\u30c3\u30af\u30b7\u30fc\u30b1\u30f3\u30b9\uff08FCS\uff09\u306a\u3069\u306e\u30a8\u30e9\u30fc\u691c\u51fa\u30d5\u30a3\u30fc\u30eb\u30c9\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u306b\u30a8\u30e9\u30fc\u304c\u8868\u793a\u3055\u308c\u308b\u3068\u3001\u30b1\u30fc\u30d6\u30eb\u306e\u6545\u969c\u3084\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u30ab\u30fc\u30c9\u306e\u554f\u984c\u306a\u3069\u306e\u554f\u984c\u3092\u793a\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002 PDU\u3092\u8abf\u3079\u308b\u3053\u3068\u306b\u3088\u308a\u3001\u6280\u8853\u8005\u306f\u3001\u3088\u308a\u8907\u96d1\u306a\u8a3a\u65ad\u306b\u79fb\u884c\u3059\u308b\u524d\u306b\u3001\u30b3\u30df\u30e5\u30cb\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u554f\u984c\u3092\u8fc5\u901f\u306b\u7279\u5b9a\u3057\u3066\u89e3\u6c7a\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><\/p>\n<h3>PDU\u3092\u5206\u6790\u3059\u308b\u305f\u3081\u306e\u30c4\u30fc\u30eb\u3068\u5b9f\u4e16\u754c\u306e\u4f8b<\/h3>\n<p><\/p>\n<p>Wireshark\u3092\u30ad\u30e3\u30d7\u30c1\u30e3\u304a\u3088\u3073\u30c7\u30b3\u30fc\u30c9\u3059\u308b\u306a\u3069\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u30a2\u30ca\u30e9\u30a4\u30b6\u30fc\u304cPDU\u3092\u30c7\u30b3\u30fc\u30c9\u3057\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u8a73\u7d30\u306a\u691c\u67fb\u3092\u53ef\u80fd\u306b\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30c4\u30fc\u30eb\u306f\u3001\u30ab\u30d7\u30bb\u30eb\u5316\u306e\u8a73\u7d30\u3068\u500b\u3005\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u3092\u8868\u793a\u3057\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u554f\u984c\u3092\u7279\u5b9a\u3057\u305f\u308a\u3001\u30d7\u30ed\u30c8\u30b3\u30eb\u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9\u3092\u691c\u8a3c\u3057\u305f\u308a\u3057\u307e\u3059\u3002 Smart Grid Networks\u306a\u3069\u306e\u5b9f\u969b\u306e\u30b7\u30ca\u30ea\u30aa\u3067\u306f\u3001PDU\u5206\u6790\u306b\u3088\u308a\u3001\u8907\u96d1\u306a\u30b5\u30a4\u30d0\u30fc\u653b\u6483\u3068\u904b\u7528\u969c\u5bb3\u306e\u691c\u51fa\u3068\u89e3\u6c7a\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3057\u305f\u3002\u8907\u6570\u306e\u5c64\u3067PDU\u3092\u8abf\u3079\u308b\u3053\u3068\u306b\u3088\u308a\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30c1\u30fc\u30e0\u306f\u5fae\u5999\u306a\u8105\u5a01\u3092\u7279\u5b9a\u3057\u3001\u91cd\u8981\u306a\u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u306e\u4fe1\u983c\u6027\u3092\u78ba\u4fdd\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><\/p>\n<hr \/>\n<p><\/p>\n<p>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u5c02\u9580\u5bb6\u306f\u3001PDU\u3092\u4fe1\u983c\u3067\u304d\u308b\u30b3\u30df\u30e5\u30cb\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u4e0d\u53ef\u6b20\u3067\u3042\u308b\u3068\u8a8d\u8b58\u3057\u3066\u3044\u307e\u3059\u3002\u6b21\u306e\u8868\u306f\u3001\u5404\u30ec\u30a4\u30e4\u30fc\u3067\u306e\u5f79\u5272\u3092\u5f37\u8abf\u3057\u3066\u3044\u307e\u3059:<\/p>\n<p><\/p>\n<table><\/p>\n<thead><\/p>\n<tr><\/p>\n<th>\u5c64<\/th>\n<p><\/p>\n<th>PDU\u540d<\/th>\n<p><\/p>\n<th>\u91cd\u8981\u306a\u5f79\u5272<\/th>\n<p><\/tr>\n<p><\/thead>\n<p><\/p>\n<tbody><\/p>\n<tr><\/p>\n<td>\u7269\u7406\u7684\u306a<\/td>\n<p><\/p>\n<td>\u30d3\u30c3\u30c8<\/td>\n<p><\/p>\n<td>\u751f\u30c7\u30fc\u30bf\u3092\u9001\u4fe1\u3057\u307e\u3059<\/td>\n<p><\/tr>\n<p><\/p>\n<tr><\/p>\n<td>\u30c7\u30fc\u30bf\u30ea\u30f3\u30af<\/td>\n<p><\/p>\n<td>\u30d5\u30ec\u30fc\u30e0<\/td>\n<p><\/p>\n<td>\u30ed\u30fc\u30ab\u30eb\u30c7\u30d0\u30a4\u30b9\u3092\u63a5\u7d9a\u3057\u307e\u3059<\/td>\n<p><\/tr>\n<p><\/p>\n<tr><\/p>\n<td>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af<\/td>\n<p><\/p>\n<td>\u30d1\u30b1\u30c3\u30c8<\/td>\n<p><\/p>\n<td>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5168\u4f53\u306e\u30c7\u30fc\u30bf\u3092\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3057\u307e\u3059<\/td>\n<p><\/tr>\n<p><\/p>\n<tr><\/p>\n<td>\u8f38\u9001<\/td>\n<p><\/p>\n<td>\u30bb\u30b0\u30e1\u30f3\u30c8\/\u30c7\u30fc\u30bf\u30b0\u30e9\u30e0<\/td>\n<p><\/p>\n<td>\u914d\u4fe1\u3068\u30b7\u30fc\u30b1\u30f3\u30b9\u3092\u4fdd\u8a3c\u3057\u307e\u3059<\/td>\n<p><\/tr>\n<p><\/p>\n<tr><\/p>\n<td>\u5fdc\u7528<\/td>\n<p><\/p>\n<td>\u30c7\u30fc\u30bf<\/td>\n<p><\/p>\n<td>\u30e6\u30fc\u30b6\u30fc\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u914d\u4fe1\u3057\u307e\u3059<\/td>\n<p><\/tr>\n<p><\/tbody>\n<p><\/table>\n<p><\/p>\n<ul><\/p>\n<li>PDU\u306f\u3001\u30a8\u30e9\u30fc\u306e\u691c\u51fa\u3001\u76f8\u4e92\u904b\u7528\u6027\u3001\u52b9\u7387\u7684\u306a\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u6709\u52b9\u306b\u3057\u307e\u3059\u3002<\/li>\n<p><\/p>\n<li>PDU\u306e\u3055\u3089\u306a\u308b\u8abf\u67fb\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30de\u30cd\u30fc\u30b8\u30e3\u30fc\u304c\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u6700\u9069\u5316\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/li>\n<p><\/ul>\n<p><\/p>\n<h2>\u3088\u304f\u3042\u308b\u8cea\u554f<\/h2>\n<p><\/p>\n<h3>\u30cd\u30c3\u30c8\u30ef\u30fc\u30ad\u30f3\u30b0\u306b\u304a\u3051\u308bPDU\u306e\u4e3b\u306a\u76ee\u7684\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h3>\n<p><\/p>\n<p>PDU\u306f\u9001\u4fe1\u306e\u305f\u3081\u306e\u30c7\u30fc\u30bf\u3092\u7de8\u6210\u3057\u307e\u3059\u3002\u5236\u5fa1\u60c5\u5831\u304c\u542b\u307e\u308c\u3066\u304a\u308a\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30ec\u30a4\u30e4\u30fc\u9593\u3067\u30c7\u30d0\u30a4\u30b9\u304c\u6b63\u78ba\u304b\u3064\u52b9\u7387\u7684\u306b\u901a\u4fe1\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n<p><\/p>\n<h3>PDU\u306f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u3067\u3069\u306e\u3088\u3046\u306b\u5f79\u7acb\u3061\u307e\u3059\u304b\uff1f<\/h3>\n<p><\/p>\n<blockquote><p><\/p>\n<p>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a8\u30f3\u30b8\u30cb\u30a2\u306fPDU\u3092\u5206\u6790\u3057\u3066\u3001\u30a8\u30e9\u30fc\u3092\u7279\u5b9a\u3057\u3001\u30c7\u30fc\u30bf\u30d5\u30ed\u30fc\u3092\u8ffd\u8de1\u3057\u3001\u554f\u984c\u3092\u8a3a\u65ad\u3057\u307e\u3059\u3002\u3053\u306e\u30d7\u30ed\u30bb\u30b9\u306f\u3001\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u52a0\u901f\u3057\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u4fe1\u983c\u6027\u3092\u5411\u4e0a\u3055\u305b\u307e\u3059\u3002<\/p>\n<p><\/p><\/blockquote>\n<p><\/p>\n<h3>\u7570\u306a\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30c7\u30d0\u30a4\u30b9\u306f\u540c\u3058PDU\u5f62\u5f0f\u3092\u4f7f\u7528\u3067\u304d\u307e\u3059\u304b\uff1f<\/h3>\n<p><\/p>\n<p>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30c7\u30d0\u30a4\u30b9\u306f\u3001\u6a19\u6e96\u5316\u3055\u308c\u305fPDU\u5f62\u5f0f\u306b\u5f93\u3044\u307e\u3059\u3002\u3053\u306e\u6a19\u6e96\u5316\u306b\u3088\u308a\u3001\u3055\u307e\u3056\u307e\u306a\u30e1\u30fc\u30ab\u30fc\u306e\u30c7\u30d0\u30a4\u30b9\u9593\u306e\u4e92\u63db\u6027\u3068\u30b9\u30e0\u30fc\u30ba\u306a\u30c7\u30fc\u30bf\u4ea4\u63db\u304c\u4fdd\u8a3c\u3055\u308c\u307e\u3059\u3002<\/p>\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>PDU\u30cd\u30c3\u30c8\u30ef\u30fc\u30ad\u30f3\u30b0\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30ec\u30a4\u30e4\u30fc\u3068\u30c7\u30d0\u30a4\u30b9\u3092\u4ecb\u3057\u305f\u4fe1\u983c\u3067\u304d\u308b\u52b9\u7387\u7684\u306a\u901a\u4fe1\u306e\u305f\u3081\u306b\u3001\u30c7\u30fc\u30bf\u3068\u5236\u5fa1\u60c5\u5831\u304c\u3069\u306e\u3088\u3046\u306b\u69cb\u9020\u5316\u3055\u308c\u308b\u304b\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002<\/p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