{"id":1981,"date":"2020-11-04T14:08:34","date_gmt":"2020-11-04T05:08:34","guid":{"rendered":"http:\/\/advanceadvance.net\/?p=1981"},"modified":"2020-11-04T14:08:38","modified_gmt":"2020-11-04T05:08:38","slug":"%e3%83%8d%e3%83%83%e3%83%88%e3%83%af%e3%83%bc%e3%82%af%ef%bc%88%e3%81%9d%e3%81%ae%ef%bc%92%ef%bc%89%e3%83%8d%e3%83%83%e3%83%88%e3%83%af%e3%83%bc%e3%82%af%e3%82%a2%e3%83%bc%e3%82%ad%e3%83%86%e3%82%af","status":"publish","type":"post","link":"https:\/\/advanceadvance.net\/?p=1981","title":{"rendered":"\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff08\u305d\u306e\uff12\uff09\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3"},"content":{"rendered":"\n<p>\u901a\u4fe1\u3092\u884c\u3046\u305f\u3081\u306b\u306f\u3001\u69d8\u3005\u306a<strong>\u898f\u7d04<\/strong>\uff08\u7d04\u675f\u4e8b\uff09\u3092\u5b9a\u3081\u3066\u304a\u304f\u5fc5\u8981\u304c\u3042\u308b\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u898f\u7d04\u306e\u3053\u3068\u3092<strong>\u30d7\u30ed\u30c8\u30b3\u30eb<\/strong>\u3068\u3044\u3046\u3002<\/p>\n\n\n\n<p>\u4eca\u56de\u306f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u901a\u4fe1\u306e\u3042\u308a\u65b9\u306b\u3064\u3044\u3066\u89b3\u3066\u307f\u305f\u3044\u3068\u601d\u3046\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u30fb\u4f1d\u9001\u5236\u5fa1<\/h4>\n\n\n\n<p>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u901a\u4fe1\u3067\u78ba\u5b9f\u306b\u30c7\u30fc\u30bf\u3092\u3084\u308a\u53d6\u308a\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u69d8\u3005\u306a\u30eb\u30fc\u30eb\u3092\u6c7a\u3081\u3066\u304a\u304b\u306a\u3044\u3068\u3044\u3051\u306a\u3044\u3002<\/p>\n\n\n\n<p>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u4ecb\u3057\u3066\u6a5f\u5668\u3068\u6a5f\u5668\u3092\u63a5\u7d9a\u3057\u3066\u3082\u3001\u305d\u308c\u3060\u3051\u3067\u306f\u3046\u307e\u304f\u901a\u4fe1\u306f\u3067\u304d\u305a\u3001\u30bf\u30a4\u30df\u30f3\u30b0\u3092\u5408\u308f\u305b\u308b\u306a\u3069\u306e\u5236\u5fa1\u304c\u5fc5\u8981\u306b\u306a\u308b\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u5236\u5fa1\u306e\u3053\u3068\u3092<strong>\u4f1d\u9001\u5236\u5fa1<\/strong>\u3068\u3044\u3046\u3002<\/p>\n\n\n\n<p>\u4f1d\u9001\u5236\u5fa1\u3067\u306f\u4ee5\u4e0b\u306e\u3082\u306e\u3092\u5236\u5fa1\u3059\u308b\u3002<\/p>\n\n\n\n<p>\u30fb\u56de\u7dda\u306e\u63a5\u7d9a\u3084\u5207\u65ad\u306a\u3069\u306e\u5236\u5fa1<\/p>\n\n\n\n<p>\u30fb\u30c7\u30fc\u30bf\u30ea\u30f3\u30af(\u8ad6\u7406\u7684\u306a\u901a\u4fe1\u8def)\u306e\u78ba\u7acb\u3084\u89e3\u653e\u306a\u3069\u306e\u5236\u5fa1<\/p>\n\n\n\n<p>\u30fb\u30c7\u30fc\u30bf\u5358\u4f4d\u3067\u306e\u78ba\u5b9f\u306a\u9001\u53d7\u4fe1\u3092\u884c\u3046<strong>\u540c\u671f\u5236\u5fa1<\/strong><\/p>\n\n\n\n<p>\u30fb\u30c7\u30fc\u30bf\u5185\u5bb9\u306e\u691c\u8a3c\u3084\u8a02\u6b63\u3092\u884c\u3046<strong>\u8aa4\u308a\u5236\u5fa1<\/strong><\/p>\n\n\n\n<p>\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000<\/p>\n\n\n\n<p>\u30fb<strong>\u540c\u671f\u5236\u5fa1<\/strong><\/p>\n\n\n\n<p>\u307e\u305a\u306f\u540c\u671f\u5236\u5fa1\u306e\u6982\u8981\u3092\u89b3\u3066\u307f\u3088\u3046\u3002<\/p>\n\n\n\n<p>\u3053\u308c\u306f\u7c21\u5358\u306b\u3044\u3046\u3068\u3001\u30c7\u30fc\u30bf\u306e\u958b\u59cb\u3068\u7d42\u4e86\u3092\u5224\u65ad\u3057\u3001\u53cc\u65b9\u306e\u9593\u3067\u4f1d\u9001\u306e\u30bf\u30a4\u30df\u30f3\u30b0\u3092\u5408\u308f\u305b\u308b\u5236\u5fa1\u3067\u3042\u308b\u3002<\/p>\n\n\n\n<p>\u2460<strong>\u8abf\u6b69\u540c\u671f<\/strong><\/p>\n\n\n\n<p>\u8abf\u6b69\u540c\u671f\u306f\u3001\uff11\u6587\u5b57\u5358\u4f4d\u3067\u540c\u671f\u3092\u3068\u308b\u65b9\u5f0f\u3067\u3042\u308a\u3001<strong>\u975e\u540c\u671f\u65b9\u5f0f<\/strong>\u3068\u547c\u3070\u308c\u308b\u3053\u3068\u3082\u3042\u308b\u3002<\/p>\n\n\n\n<p>\uff11\u6587\u5b57\u306e\u524d\u5f8c\u306b<strong>\u30b9\u30bf\u30fc\u30c8\u30d3\u30c3\u30c8<\/strong>\u3068<strong>\u30b9\u30c8\u30c3\u30d7\u30d3\u30c3\u30c8<\/strong>\u3092\u4ed8\u4e0e\u3057\u3066\u9001\u4fe1\u3059\u308b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"628\" height=\"293\" src=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/10\/47B4B309-D437-4868-A480-715A609FAD1B.png\" alt=\"\" class=\"wp-image-1982\" srcset=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/10\/47B4B309-D437-4868-A480-715A609FAD1B.png 628w, https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/10\/47B4B309-D437-4868-A480-715A609FAD1B-300x140.png 300w\" sizes=\"(max-width: 628px) 100vw, 628px\" \/><\/figure>\n\n\n\n<p>\u2461<strong>\u30d5\u30ec\u30fc\u30e0\u540c\u671f<\/strong><\/p>\n\n\n\n<p>\u30d5\u30ec\u30fc\u30e0\u540c\u671f\uff08\u30d5\u30e9\u30b0\u540c\u671f\uff09\u306f\u3001<strong>\u30d5\u30e9\u30b0\u30b7\u30fc\u30b1\u30f3\u30b9<\/strong>\u3068\u3044\u3046\u30d1\u30bf\u30fc\u30f3\uff0801111110\uff09\u3067\u56f2\u307e\u308c\u305f\u30d5\u30ec\u30fc\u30e0\u3068\u3044\u3046\u5358\u4f4d\u3067\u30c7\u30fc\u30bf\u3092\u4f1d\u9001\u3059\u308b\u65b9\u5f0f\u3067\u3042\u308b\u3002<\/p>\n\n\n\n<p>\u30c7\u30fc\u30bf\u3092\u4f1d\u9001\u3057\u3066\u306a\u3044\u9593\u306f\u5e38\u306b\u30d5\u30e9\u30b0\u30b7\u30fc\u30b1\u30f3\u30b9\u304c\u6d41\u308c\u3066\u3044\u3066\u3001\u30d5\u30e9\u30b0\u30b7\u30fc\u30b1\u30f3\u30b9\u4ee5\u5916\u306e\u30d1\u30bf\u30fc\u30f3\u304c\u51fa\u73fe\u3057\u305f\u6642\u70b9\u3067\u53d7\u4fe1\u5074\u306f\u30c7\u30fc\u30bf\u306e\u53d7\u4fe1\u3092\u958b\u59cb\u3057\u3001\u6b21\u306e\u30d5\u30e9\u30b0\u30b7\u30fc\u30b1\u30f3\u30b9\u3092\u53d7\u4fe1\u3057\u305f\u6642\u70b9\u3067\u30c7\u30fc\u30bf\u306e\u53d7\u4fe1\u3092\u7d42\u4e86\u3059\u308b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/10\/D3883F39-0FF4-430E-A681-9E99D6BFF6C3.gif\" alt=\"\" class=\"wp-image-1983\" width=\"612\" height=\"125\"\/><\/figure>\n\n\n\n<p>\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000<\/p>\n\n\n\n<p>\u30fb<strong>\u8aa4\u308a\u5236\u5fa1<\/strong><\/p>\n\n\n\n<p>\u9001\u4fe1\u30c7\u30fc\u30bf\u306f\u3001\u4f1d\u9001\u4e2d\u306b\u30ce\u30a4\u30ba\u306a\u3069\u306e\u5f71\u97ff\u3092\u53d7\u3051\u3066\u3001\u8aa4\u3063\u305f\u5185\u5bb9\u3067\u53d7\u4fe1\u3055\u308c\u3066\u3057\u307e\u3046\u3053\u3068\u304c\u3042\u308b\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u8aa4\u308a\u3092\u691c\u51fa\u3057\u3066\u3001\u6b63\u3057\u3044\u30c7\u30fc\u30bf\u3092\u53d7\u4fe1\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u306e\u304c\u8aa4\u308a\u5236\u5fa1\u306e\u5f79\u5272\u3067\u3042\u308b\u3002\u3000<\/p>\n\n\n\n<p>                                 \u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000<\/p>\n\n\n\n<p>\u2460 <strong>\u30d1\u30ea\u30c6\u30a3\u691c\u67fb<\/strong><\/p>\n\n\n\n<p>\u30d1\u30ea\u30c6\u30a3\u691c\u67fb\u3068\u306f\u3001\u30c7\u30fc\u30bf\u306b1\u30d3\u30c3\u30c8\u306e\u691c\u67fb\u30d3\u30c3\u30c8\u3092\u4ed8\u4e0e\u3059\u308b\u3053\u3068\u3067\u3001\u30c7\u30fc\u30bf\u4e2d\u306e\u30d3\u30c3\u30c81\u306e\u500b\u6570\u3092\u5076\u6570\u307e\u305f\u306f\u5947\u6570\u306b\u7d71\u4e00\u3059\u308b\u65b9\u6cd5\u3067\u3042\u308b\u3002<\/p>\n\n\n\n<p>\uff11\u306e\u6570\u304c\u5076\u6570\u500b\u306b\u306a\u308b\u3088\u3046\u4ed8\u4e0e\u3059\u308b\u65b9\u5f0f\u3092<strong>\u5076\u6570\u30d1\u30ea\u30c6\u30a3<\/strong>\u3001\u5947\u6570\u500b\u306b\u306a\u308b\u3088\u3046\u4ed8\u4e0e\u3059\u308b\u65b9\u5f0f\u3092<strong>\u5947\u6570\u30d1\u30ea\u30c6\u30a3<\/strong>\u3068\u3044\u3046\u3002<\/p>\n\n\n\n<p>\u9001\u4fe1\u5074\u306b\u3088\u3063\u3066\u4ed8\u52a0\u3055\u308c\u305f\u30d1\u30ea\u30c6\u30a3\u30d3\u30c3\u30c8\u306f\u3001\u53d7\u4fe1\u5074\u3067\u8aa4\u308a\u3092\u691c\u67fb\u3059\u308b\u3002<\/p>\n\n\n\n<p>\u53d7\u4fe1\u5074\u306f\u53d7\u4fe1\u30c7\u30fc\u30bf\u4e2d\u306e\u300c1\u306e\u6570\u300d\u3092\u6570\u3048\u3001\u5076\u6570\u30d1\u30ea\u30c6\u30a3\u306e\u306f\u305a\u306a\u306e\u306b\u300c1\u306e\u6570\u300d\u304c\u5947\u6570\u3067\u3042\u3063\u305f\u5834\u5408\u306a\u3069\u306f\u3001\u8aa4\u308a\u304c\u767a\u751f\u3057\u305f\u3068\u5224\u65ad\u3059\u308b\u3002<\/p>\n\n\n\n<p>\u30d1\u30ea\u30c6\u30a3\u691c\u67fb\u3067\u306f\u3001\uff11\u30d3\u30c3\u30c8(\u5947\u6570\u500b)\u306e\u8aa4\u308a\u306f\u691c\u51fa\u3067\u304d\u308b\u304c\u3001\uff12\u30d3\u30c3\u30c8(\u5076\u6570\u500b)\u306e\u8aa4\u308a\u306f\u691c\u51fa\u3067\u304d\u306a\u3044\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"243\" src=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/10\/36332B2F-7FD5-491D-9C24-AE9FFDE64A79.gif\" alt=\"\" class=\"wp-image-1989\"\/><\/figure>\n\n\n\n<p>                               \u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000<\/p>\n\n\n\n<p>\u2461<strong>\u5782\u76f4\uff0f\u6c34\u5e73\u30d1\u30ea\u30c6\u30a3\u691c\u67fb<\/strong><\/p>\n\n\n\n<p>\u30d1\u30ea\u30c6\u30a3\u691c\u67fb\u306f\u3001\u4e3b\u3068\u3057\u3066\u8907\u6570\u6587\u5b57\u3092\u307e\u3068\u3081\u305f\u30d6\u30ed\u30c3\u30af\u3068\u3044\u3046\u5358\u4f4d\u3067\u901a\u4fe1\u3092\u884c\u3046\u5834\u5408\u306b\u7528\u3044\u3089\u308c\u308b\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u3068\u304d\u3001\u6587\u5b57\u5358\u4f4d\u306b\u30d1\u30ea\u30c6\u30a3\u30d3\u30c3\u30c8\u3092\u4ed8\u52a0\u3059\u308b<strong>\u5782\u76f4\u30d1\u30ea\u30c6\u30a3\u691c\u67fb<\/strong>\u3068\u3001\u30d6\u30ed\u30c3\u30af\u4e2d\u306e\u6587\u5b57\u306e\u540c\u3058\u4f4d\u7f6e\u306e\u30d3\u30c3\u30c8\u306b\u5bfe\u3057\u3066\u30d1\u30ea\u30c6\u30a3\u30d3\u30c3\u30c8\u3092\u4ed8\u52a0\u3059\u308b<strong>\u6c34\u5e73\u30d1\u30ea\u30c6\u30a3\u691c\u67fb<\/strong>\u3068\u304c\u3042\u308a\u3001\u3069\u3061\u3089\u3082\u5947\u6570\u30d1\u30ea\u30c6\u30a3\u3001\u5076\u6570\u30d1\u30ea\u30c6\u30a3\u3092\u4f7f\u3046\u3053\u3068\u304c\u53ef\u80fd\u3067\u3042\u308b\u3002<\/p>\n\n\n\n<p>\u6c34\u5e73\u30d1\u30ea\u30c6\u30a3\u691c\u67fb\u3067\u306f\u3001\u8aa4\u308a\u691c\u67fb\u5c02\u7528\u306e\u6587\u5b57\u304c\u4ed8\u52a0\u3055\u308c\u308b\u3053\u3068\u306b\u306a\u308b\u3002<\/p>\n\n\n\n<p>\u3053\u308c\u3092<strong>BCC<\/strong>\uff08Block Check Character\uff09\u3068\u3044\u3046\u3002<\/p>\n\n\n\n<p>\u6c34\u5e73\u30d1\u30ea\u30c6\u30a3\u691c\u67fb\u3068\u5782\u76f4\u30d1\u30ea\u30c6\u30a3\u691c\u67fb\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u4f7f\u3046\u3053\u3068\u306b\u3088\u308a\u3001\uff12\u30d3\u30c3\u30c8\u307e\u3067\u306e\u8aa4\u308a\u691c\u67fb\u3068\uff11\u30d3\u30c3\u30c8\u306e\u8aa4\u308a\u8a02\u6b63\u304c\u53ef\u80fd\u3068\u306a\u308b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/10\/9F7D2D2C-DAED-4C84-92A7-716D7BDC2869.jpeg\" alt=\"\" class=\"wp-image-1991\" srcset=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/10\/9F7D2D2C-DAED-4C84-92A7-716D7BDC2869.jpeg 1024w, https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/10\/9F7D2D2C-DAED-4C84-92A7-716D7BDC2869-300x225.jpeg 300w, https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/10\/9F7D2D2C-DAED-4C84-92A7-716D7BDC2869-768x576.jpeg 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption>\u4e0a\u56f3\u306f1001\u304c\u6b63\u3057\u3044\u3068\u5224\u65ad\u3055\u308c\u3066\u308b\u3002\u53f32\u6bb5\u306f\u5782\u76f4\u30d1\u30ea\u30c6\u30a3\u3002\u4e0b\u90e8\u306f\u6c34\u5e73\u30d1\u30ea\u30c6\u30a3\u3002<\/figcaption><\/figure>\n\n\n\n<p>\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000<\/p>\n\n\n\n<p>\u2462<strong>CRC<\/strong>(Cyclic Redundancy Check : \u5de1\u56de\u5197\u9577\u691c\u67fb)<\/p>\n\n\n\n<p>CRC\u306f\u3001\u53d7\u4fe1\u30c7\u30fc\u30bf\u3092<strong>\u751f\u6210\u591a\u9805\u5f0f<\/strong>\u3067\u9664\u7b97\u3057\u3001\u305d\u306e\u7d50\u679c\u3067\u8aa4\u308a\u306e\u6709\u7121\u3092\u5224\u5b9a\u3059\u308b\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306a\u691c\u67fb\u3092\u884c\u3046\u305f\u3081\u3001\u9001\u4fe1\u5074\u306f\u3042\u3089\u304b\u3058\u3081\u30c7\u30fc\u30bf\u3092\u751f\u6210\u591a\u9805\u5f0f\u3067\u5272\u308a\u5207\u308c\u308b\u3088\u3046\u306b\u5270\u4f59(\u3042\u307e\u308a)\u3092\u4ed8\u4e0e\u3057\u305f\u30c7\u30fc\u30bf\u3092\u9001\u308b\u3002<\/p>\n\n\n\n<p>\u3053\u3053\u3067\u4ed8\u4e0e\u3057\u305f\u5270\u4f59\u3092<strong>CRC\u7b26\u53f7<\/strong>\u3068\u3044\u3046\u3002<\/p>\n\n\n\n<p>\u53d7\u4fe1\u5074\u306f\u3001CRC\u7b26\u53f7\u304c\u4ed8\u4e0e\u3055\u308c\u305f\u30c7\u30fc\u30bf\u3092\u6539\u3081\u3066\u751f\u6210\u591a\u9805\u5f0f\u3067\u9664\u7b97\u3059\u308b\u3002\u5272\u308a\u5207\u308c\u306a\u3044\u3068\u304d\u3001\u8aa4\u308a\u304c\u3042\u3063\u305f\u3068\u5224\u65ad\u3059\u308b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/10\/\u751f\u6210\u591a\u9805\u5f0f.jpg\" alt=\"\" class=\"wp-image-1995\" srcset=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/10\/\u751f\u6210\u591a\u9805\u5f0f.jpg 1024w, https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/10\/\u751f\u6210\u591a\u9805\u5f0f-300x225.jpg 300w, https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/10\/\u751f\u6210\u591a\u9805\u5f0f-768x576.jpg 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption>\uff12\u9032\u6570\u3068\u307f\u306a\u3059. + \u9001\u4fe1\u30c7\u30fc\u30bf. CRC. \u9001\u4fe1\u30c7\u30fc\u30bf. CRC. \u751f\u6210\u591a\u9805\u5f0f\u3067\u5272\u308b. \u30c1\u30a7\u30c3\u30af\u30d3\u30c3\u30c8\u3068\u3057\u3066\u4ed8\u52a0\u3057\u3066\u9001\u4fe1. \u9001\u4fe1\u30c7\u30fc\u30bf. CRC. \u4f59\u308a\u304c\uff10\u306a\u3089\u30c7\u30fc\u30bf\u306f\u6b63\u3057\u304f\u53d7\u4fe1\u51fa\u6765\u3066\u3044\u308b. <\/figcaption><\/figure>\n\n\n\n<p>CRC\u306f\u7cbe\u5ea6\u306e\u9ad8\u3044\u8aa4\u308a\u691c\u51fa\u65b9\u6cd5\u3067\u3001\u9023\u7d9a\u3057\u305f\u30d3\u30c3\u30c8\u8aa4\u308a\u306b\u3082\u5f37\u3044\u306e\u3067\u3001\u3055\u307e\u3056\u307e\u306a\u30b7\u30b9\u30c6\u30e0\u3067\u63a1\u7528\u3055\u308c\u3066\u3044\u308b\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000<\/p>\n\n\n\n<p>\u30fb<strong>\u30d5\u30ed\u30fc\u5236\u5fa1<\/strong><\/p>\n\n\n\n<p>\u9001\u4fe1\u3057\u305f\u30c7\u30fc\u30bf\u304c\u78ba\u5b9f\u306b\u5c4a\u3044\u305f\u304b\u3092\u77e5\u308b\u306b\u306f\u3001\u53d7\u4fe1\u5074\u304b\u3089\u306e\u5fdc\u7b54\u304c\u5fc5\u8981\u3067\u3042\u308b\u3002<\/p>\n\n\n\n<p>\u9001\u4fe1\u3057\u305f\u30c7\u30fc\u30bf\u306b\u5bfe\u3059\u308bACK(ACKnowledgment:\u80af\u5b9a\u5fdc\u7b54)\u304c\u8fd4\u3063\u3066\u304f\u308c\u3070\u53d7\u4fe1\u8005\u304c\u53d7\u4fe1\u3067\u304d\u305f\u3068\u5224\u65ad\u3067\u304d\u308b\u3002<\/p>\n\n\n\n<p>\u53cd\u5bfe\u306b\u3001\u4e00\u5b9a\u6642\u9593\u5185\u306bACK\u304c\u8fd4\u3089\u306a\u3044\u5834\u5408\u3084NAK(Negative AcKnowlegement:\u5426\u5b9a\u5fdc\u7b54)\u304c\u8fd4\u3063\u3066\u304d\u305f\u5834\u5408\u306f\u3001\u4f55\u3089\u304b\u306e\u7406\u7531\u3067\u6b63\u3057\u304f\u53d7\u4fe1\u3067\u304d\u306a\u304b\u3063\u305f\u3068\u5224\u65ad\u3067\u304d\u3001\u30c7\u30fc\u30bf\u3092\u518d\u9001\u3059\u308b\u3002\u3053\u308c\u3092\u78ba\u8a8d\u5fdc\u7b54\u3068\u3044\u3046\u3002<\/p>\n\n\n\n<p>\u78ba\u8a8d\u5fdc\u7b54\u3067\u306f\u3001ACK\u304c\u8fd4\u308b\u307e\u3067\u6b21\u30c7\u30fc\u30bf\u306e\u9001\u4fe1\u3092\u5f85\u3064\u3088\u308a\u3082\u3001\u3044\u304f\u3064\u304b\u306e\u30c7\u30fc\u30bf\u3092\u9023\u7d9a\u3057\u3066\u9001\u4fe1\u3059\u308b\u65b9\u304c\u52b9\u7387\u7684\u3067\u3042\u308b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"416\" height=\"386\" src=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/ACK.jpg\" alt=\"\" class=\"wp-image-1999\" srcset=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/ACK.jpg 416w, https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/ACK-300x278.jpg 300w\" sizes=\"(max-width: 416px) 100vw, 416px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/ACK\u9023\u7d9a.jpg\" alt=\"\" class=\"wp-image-2000\" width=\"405\" height=\"513\" srcset=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/ACK\u9023\u7d9a.jpg 405w, https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/ACK\u9023\u7d9a-237x300.jpg 237w\" sizes=\"(max-width: 405px) 100vw, 405px\" \/><\/figure>\n\n\n\n<p>\u9001\u4fe1\u5074\u304c\u7121\u5236\u9650\u306b\u30c7\u30fc\u30bf\u3092\u9001\u4fe1\u3092\u7d9a\u3051\u308b\u3068\u3001\u53d7\u4fe1\u5074\u3067\u305d\u308c\u3089\u3092\u5bfe\u51e6\u3067\u304d\u306a\u304f\u306a\u3063\u3066\u3057\u307e\u3046\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002<\/p>\n\n\n\n<p>\u305d\u306e\u305f\u3081\u6d41\u3059\u30c7\u30fc\u30bf\u306e\u91cf\u3092\u8abf\u6574\u3059\u308b\u5fc5\u8981\u304c\u751f\u3058\u3066\u304f\u308b\u304c\u3001\u3053\u308c\u3092<strong>\u30d5\u30ed\u30fc\u5236\u5fa1<\/strong>\u3068\u3044\u3046\u306e\u3067\u3042\u308b\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u30fbOSI\u57fa\u672c\u53c2\u7167\u30e2\u30c7\u30eb<\/h4>\n\n\n\n<p>\u901a\u4fe1\u3092\u884c\u3046\u305f\u3081\u306b\u306f\u3001\u3055\u307e\u3056\u307e\u306a\u898f\u7d04\uff08\u7d04\u675f\u4e8b\uff09\u3092\u5b9a\u3081\u306a\u3044\u3068\u3044\u3051\u306a\u3044\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u898f\u7d04\u306e\u3053\u3068\u3092<strong>\u30d7\u30ed\u30c8\u30b3\u30eb<\/strong>\u3068\u3044\u3046\u3002<\/p>\n\n\n\n<p>\u3057\u304b\u3057\u306a\u304c\u3089\u3001\u901a\u4fe1\u306b\u5fc5\u8981\u306a\u898f\u7d04\u3084\u5236\u5fa1\u3092\u3059\u3079\u3066\u4e00\u3064\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u5b9f\u73fe\u3057\u3088\u3046\u3068\u3059\u308b\u3068\u3001\u30d7\u30ed\u30c8\u30b3\u30eb\u304c\u8907\u96d1\u306b\u306a\u3063\u305f\u308a\u7b49\u3067\u52b9\u7387\u304c\u60aa\u3044\u3002<\/p>\n\n\n\n<p>\u305d\u3053\u3067\u3001\u30d7\u30ed\u30c8\u30b3\u30eb\u304c\u5b9f\u73fe\u3059\u3079\u304d\u6a5f\u80fd\u3092\u3044\u304f\u3064\u304b\u306e\u5c64\uff08<strong>\u30ec\u30a4\u30e4<\/strong>\uff09\u306b\u5206\u3051\u3066\u3001\u5404\u5c64\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u4f7f\u3046\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u6a5f\u80fd\u3092\u5206\u5272\u3057\u305f\u30e2\u30c7\u30eb\u306e\u4ee3\u8868\u4f8b\u304c\u3001<strong>OSI\u57fa\u672c\u53c2\u7167\u30e2\u30c7\u30eb<\/strong>\u3067\u3042\u308b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5c64\uff08\u7b2c7\u5c64\uff09<\/td><td>\u901a\u4fe1\u3092\u884c\u3046\u5404\u7a2e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u52d5\u4f5c\u3092\u5b9a\u3081\u308b\u3002<\/td><\/tr><tr><td>\u30d7\u30ec\u30bc\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u5c64\uff08\u7b2c6\u5c64\uff09<\/td><td>\u5404\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304c\u9001\u53d7\u3059\u308b\u30c7\u30fc\u30bf\u3092\u3001<strong>\u5171\u901a\u306e\u8ee2\u9001\u69cb\u6587\u306b\u5909\u63db<\/strong>\u3059\u308b\u3002<\/td><\/tr><tr><td>\u30bb\u30c3\u30b7\u30e7\u30f3\u5c64\uff08\u7b2c5\u5c64\uff09<\/td><td>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u9593\u3067\u53d6\u308a\u4ea4\u308f\u3059<strong>\u4f1a\u8a71<\/strong>\u3092\u6210\u7acb\u3055\u305b\u308b\u3002<\/td><\/tr><tr><td>\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64\uff08\u7b2c4\u5c64\uff09<\/td><td>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3054\u3068\u306e\u54c1\u8cea\u306e\u5dee\u3092\u5438\u53ce\u3057\u305f<strong>\u900f\u904e\u7684\u306a\u4f1d\u9001\u8def<\/strong>\u3092\u4e0a\u4f4d\u5c64\uff08\uff15\uff5e\uff17\u5c64\uff09\u306b\u63d0\u4f9b\u3059\u308b\u3002<\/td><\/tr><tr><td>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64\uff08\u7b2c3\u5c64\uff09<\/td><td>\u30c7\u30fc\u30bf\u306e\u9078\u629e\u3084\u7d4c\u8def\u9078\u629e\u3092\u884c\u3044\u3001<strong>\u30a8\u30f3\u30c9\u30c4\u30fc\u30a8\u30f3\u30c9\u306e\u30c7\u30fc\u30bf\u8ee2\u9001<\/strong>\u3092\u5b9f\u73fe\u3059\u308b\u3002<\/td><\/tr><tr><td>\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u5c64\uff08\u7b2c2\u5c64\uff09<\/td><td><strong>\u96a3\u63a5\u30ce\u30fc\u30c9<\/strong>\uff08\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u69cb\u6210\u3059\u308b\u6a5f\u5668\u4e00\u3064\u4e00\u3064\u3092\u6307\u3059\uff09<strong>\u9593\u306e\u30c7\u30fc\u30bf\u8ee2\u9001<\/strong>\u3092\u884c\u3046\u3002<\/td><\/tr><tr><td>\u7269\u7406\u5c64\uff08\u7b2c1\u5c64\uff09<\/td><td>\u4f1d\u9001\u3092\u884c\u3046\u4e0a\u3067\u306e\u7269\u7406\u7684\u30fb\u96fb\u6c17\u7684\u306a\u7279\u6027\u3092\u898f\u5b9a\u3059\u308b\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>7\u968e\u5c64\u306e\u3046\u3061\u3001\u7b2c5\u5c64\uff5e\u7b2c7\u5c64\u3067\u306f\u901a\u4fe1\u3092\u884c\u3046\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u610f\u8b58\u3059\u308b\u305f\u3081\u3001\u4e0a\u4f4d\u5c64\u3068\u3082\u3044\u308f\u308c\u308b\u3002<\/p>\n\n\n\n<p>\u3053\u308c\u306b\u5bfe\u3057\u3066\u3001\u7b2c1\u5c64\uff5e\u7b2c4\u5c64\u306f\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u4f9d\u5b58\u3057\u306a\u3044\u30c7\u30fc\u30bf\u8ee2\u9001\u306b\u95a2\u4fc2\u3059\u308b\u898f\u7d04\u3092\u307e\u3068\u3081\u3066\u3044\u308b\u305f\u3081\u3001\u4e0b\u4f4d\u5c64\u3068\u3082\u3044\u308f\u308c\u308b\u3002<\/p>\n\n\n\n<p>\u3053\u306e7\u5c64\u3092\u899a\u3048\u308b\u30b3\u30c4\u304c\u3042\u308b\u3002<\/p>\n\n\n\n<p>\u305d\u308c\u305e\u308c\u306e\u982d\u306e\u6587\u5b57\u3092\u3068\u3063\u3066\u3001<strong>\u30a2\u30fb\u30d7\u30fb\u30bb\u30fb\u30c8\u30fb\u30cd\u30fb\u30c7\u30fb\u30d6<\/strong>\u3068\u899a\u3048\u308b\u3068\u3088\u3044\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000<\/p>\n\n\n\n<p>\u2460\u3000<strong>\u7269\u7406\u5c64<\/strong><\/p>\n\n\n\n<p>\u901a\u4fe1\u88c5\u7f6e\u3084\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u3001\u7aef\u672b\u3068\u3044\u3063\u305f\u6a5f\u5668\uff08<strong>\u30ce\u30fc\u30c9<\/strong>\uff09\u3092\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u63a5\u7d9a\u3059\u308b\u305f\u3081\u306e\u7269\u7406\u7684\u30fb\u96fb\u6c17\u7684\u306a\u7279\u6027\u3092\u5b9a\u3081\u305f\u5c64\u3067\u3042\u308b\u3002<\/p>\n\n\n\n<p>\u7269\u7406\u7684\u306a\u7279\u6027\u3068\u3057\u3066\u306f\u30b3\u30cd\u30af\u30bf\u306e\u5f62\u72b6\u3001\u30d4\u30f3\u306e\u6570\u3001\u30d4\u30f3\u306e\u5f79\u5272\u306a\u3069\u304c\u898f\u5b9a\u3055\u308c\u308b\u3002<\/p>\n\n\n\n<p>\u30d4\u30f3(ping)\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u304a\u3044\u3066\u30ce\u30fc\u30c9\u306e\u5230\u9054\u6027\u3092\u78ba\u8a8d\u3059\u308b\u305f\u3081\u306e\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3067\u3042\u308b\u3002<\/p>\n\n\n\n<p>\u96fb\u6c17\u7684\u306a\u7279\u6027\u3068\u3057\u3066\u306f\u3001\u96fb\u6c17\u4fe1\u53f7\u306e\u96fb\u5727\u3084\u4fe1\u53f7\u306e\u6ce2\u5f62\u306a\u3069\u304c\u898f\u5b9a\u3055\u308c\u308b\u3002<\/p>\n\n\n\n<p>\u2461\u3000<strong>\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u5c64<\/strong><\/p>\n\n\n\n<p>\u4e00\u3064\u306e\u901a\u4fe1\u56de\u8def\u3067\u63a5\u7d9a\u3055\u308c\u305f<strong>\u96a3\u63a5\u30ce\u30fc\u30c9\u9593<\/strong>\uff08\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\uff09\u306b\u304a\u3044\u3066\u78ba\u5b9f\u306b\u30c7\u30fc\u30bf\u306e\u8ee2\u9001\u3092\u5b9f\u73fe\u3059\u308b\u305f\u3081\u306e\u5c64\u3067\u3042\u308b\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u5c64\u3067\u306f\u3001\u524d\u8ff0\u306e\u540c\u671f\u65b9\u5f0f\u3084\u8aa4\u308a\u5236\u5fa1\u306a\u3069\u304c\u5fc5\u8981\u306b\u306a\u3063\u3066\u304f\u308b\u3002<\/p>\n\n\n\n<p>LAN\u306f\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u5c64\u306b\u8a72\u5f53\u3059\u308b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1217\" height=\"616\" src=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u5c64.png\" alt=\"\" class=\"wp-image-2004\" srcset=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u5c64.png 1217w, https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u5c64-300x152.png 300w, https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u5c64-1024x518.png 1024w, https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u5c64-768x389.png 768w, https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u5c64-1200x607.png 1200w\" sizes=\"(max-width: 1217px) 100vw, 1217px\" 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class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"1660\" src=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64.jpg\" alt=\"\" class=\"wp-image-2005\" srcset=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64.jpg 1200w, https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64-217x300.jpg 217w, https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64-740x1024.jpg 740w, https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64-768x1062.jpg 768w, https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64-1110x1536.jpg 1110w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" 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