{"id":2014,"date":"2020-11-18T18:24:24","date_gmt":"2020-11-18T09:24:24","guid":{"rendered":"http:\/\/advanceadvance.net\/?p=2014"},"modified":"2020-11-18T18:31:22","modified_gmt":"2020-11-18T09:31:22","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%93%ef%bc%89lanlocal-area-netwok","status":"publish","type":"post","link":"https:\/\/advanceadvance.net\/?p=2014","title":{"rendered":"\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff08\u305d\u306e\uff13\uff09LAN:Local Area Netwok"},"content":{"rendered":"\n<p>\u6211\u3005\u304c\u4e00\u756a\u8eab\u8fd1\u306b\u611f\u3058\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304c<strong>LAN<\/strong>(Local Area Netwok)\u3067\u3042\u308b\u3002<\/p>\n\n\n\n<p>LAN\u306f\u30aa\u30d5\u30a3\u30b9\u7b49\u306e\u9650\u3089\u308c\u305f\u30a8\u30ea\u30a2\u3067\u69cb\u7bc9\u3055\u308c\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3060\u3002<\/p>\n\n\n\n<p>\u4eca\u56de\u306fLAN\u306b\u3064\u3044\u3066\u89b3\u3066\u307f\u3088\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<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u30fbLAN\u306e\u63a5\u7d9a\u5f62\u614b\uff08\u30c8\u30dd\u30ed\u30b8\uff09<\/h4>\n\n\n\n<p>LAN\u306f\u3001\u9650\u3089\u308c\u305f\u7bc4\u56f2\u3067\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u306a\u3069\u306e\u6a5f\u5668\u3092\u76f8\u4e92\u306b\u63a5\u7d9a\u3059\u308b\u305f\u3081\u306b\u7528\u3044\u3089\u308c\u308b\u3002<\/p>\n\n\n\n<p>LAN\u306e\u63a5\u7d9a\u5f62\u614b\u306b\u306f\u3001\u30d0\u30b9\u578b\u3001\u30ea\u30f3\u30b0\u578b\u3001\u30b9\u30bf\u30fc\u578b\u304c\u3042\u308b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"537\" height=\"280\" src=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/\u30c8\u30dd\u30ed\u30b8.gif\" alt=\"\" class=\"wp-image-2017\"\/><\/figure>\n\n\n\n<p>\u73fe\u5728\u306e\u4e3b\u6d41\u306f\u3001\u30cf\u30d6\uff08\u96c6\u7a4d\u88c5\u7f6e\uff09\u306b\u5404\u6a5f\u5668\u3092\u63a5\u7d9a\u3055\u305b\u308b\u30b9\u30bf\u30fc\u578b\u3067\u3042\u308b\u3002\u3000\u3000\u3000\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\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u30fb\u6709\u7ddaLAN(\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8)<\/h4>\n\n\n\n<p>\u901a\u4fe1\u5a92\u4f53\u306b\u30b1\u30fc\u30d6\u30eb\u3092\u7528\u3044\u305fLAN\u306e\u4ee3\u8868\u7684\u306a\u898f\u683c\u304c<strong>\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8<\/strong>\u3067\u3042\u308b\u3002<\/p>\n\n\n\n<p>\u30d0\u30b9\u3084\u30cf\u30d6\u306b\u63a5\u7d9a\u3055\u308c\u305f\u5404\u30ce\u30fc\u30c9\u304c\u3001\u901a\u4fe1\u8981\u6c42\u306e\u767a\u751f\u306b\u5fdc\u3058\u3066\u30c7\u30fc\u30bf\u3092\u9001\u4fe1\u3059\u308b\u3068\u3044\u3046\u30b7\u30f3\u30d7\u30eb\u306a\u65b9\u5f0f\u3067\u3042\u308a\u3001LAN\u306e\u6a19\u6e96\u5316\u56e3\u4f53\u3067\u3042\u308b<strong>IEEE<\/strong>(\u30a2\u30a4\u30c8\u30ea\u30d7\u30eb\u30a4\u30fc)\u306b\u3088\u308a<strong>IEEE802.3<\/strong>\u30b7\u30ea\u30fc\u30ba\u3068\u3057\u3066\u6a19\u6e96\u5316\u3055\u308c\u3066\u3044\u308b\u3002<\/p>\n\n\n\n<p>\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u306e\u5404\u898f\u683c\u306f\u6b21\u306e\u3088\u3046\u306b\u8868\u8a18\u3055\u308c\u308b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>\u30c7\u30fc\u30bf\u8ee2\u9001\u901f\u5ea6<\/strong><br>(M\u30d3\u30c3\u30c8\/\u79d2)<\/td><td><strong>BASE<\/strong><br>(\u30d9\u30fc\u30b9\u30d0\u30f3\u30c9\u65b9\u5f0f)<\/td><td><strong>\u6570\u5024\uff1a\u4f1d\u9001\u8ddd\u96e2<\/strong>(\u540c\u8ef8\u30b1\u30fc\u30d6\u30eb)<br><strong>\u82f1\u5b57 : \u4f1d\u9001\u5a92\u4f53<\/strong><br><br>2:\u7d04200m(185m)<br>5:500m<br>T:\u30c4\u30a4\u30b9\u30c8\u30da\u30a2<br>F:\u5149\u30d5\u30a1\u30a4\u30d0<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u4ee5\u4e0b\u306bLAN\u306e\u4ee3\u8868\u7684\u306a\u898f\u683c\u3092\u6319\u3052\u3066\u307f\u308b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>\u898f\u683c\u540d\u79f0<\/td><td>\u6700\u5927\u4f1d\u9001\u901f\u5ea6<\/td><td>\u4f7f\u7528\u30b1\u30fc\u30d6\u30eb<\/td><td>\u6700\u5927\u30b1\u30fc\u30d6\u30eb\u9577<\/td><td>\u63a5\u7d9a\u5f62\u614b<\/td><\/tr><tr><td><strong>10BASE-T<\/strong><\/td><td><strong>10M\u30d3\u30c3\u30c8\/\u79d2<\/strong><\/td><td><strong>\u30c4\u30a4\u30b9\u30c8\u30da\u30a2<\/strong><\/td><td>100m<\/td><td>\u30b9\u30bf\u30fc\u578b<\/td><\/tr><tr><td><strong>100BASE-TX<\/strong><\/td><td><strong>100M\u30d3\u30c3\u30c8\/\u79d2<\/strong><\/td><td><strong>\u30c4\u30a4\u30b9\u30c8\u30da\u30a2<\/strong><\/td><td>100m<\/td><td>\u30b9\u30bf\u30fc\u578b<\/td><\/tr><tr><td><strong>1000BASE-T<\/strong><\/td><td><strong>1G\u30d3\u30c3\u30c8\/\u79d2<\/strong><\/td><td><strong>\u30c4\u30a4\u30b9\u30c8\u30da\u30a2<\/strong><\/td><td>100m<\/td><td>\u30b9\u30bf\u30fc\u578b<\/td><\/tr><\/tbody><\/table><\/figure>\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<h4 class=\"wp-block-heading\">\u30fb\u7121\u7ddaLAN<\/h4>\n\n\n\n<p>\u901a\u4fe1\u5a92\u4f53\u306b\u30b1\u30fc\u30d6\u30eb\u3067\u306f\u306a\u304f\u96fb\u6ce2\u3092\u7528\u3044\u305f\u3082\u306e\u3092<strong>\u7121\u7ddaLAN<\/strong>\u3068\u3044\u3046\u3002<\/p>\n\n\n\n<p>\u7121\u7ddaLAN\u306fIEEE\u306b\u3088\u308a<strong>IEEE802.11<\/strong>\u30b7\u30ea\u30fc\u30ba\u3068\u3057\u3066\u898f\u683c\u5316\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<\/p>\n\n\n\n<p><strong>ESSID<\/strong>(Extended Service Set Identifier)<\/p>\n\n\n\n<p>\u7121\u7ddaLAN\u304c\u8907\u6570\u3042\u308b\u72b6\u6cc1\u3067\u306f\u3001\u5404\u30ce\u30fc\u30c9\uff08\u6a5f\u5668\uff09\u306f\u63a5\u7d9a\u3059\u308b\u7121\u7ddaLAN\u3092\u8b58\u5225\u3067\u304d\u306a\u3044\u3068\u3044\u3051\u306a\u3044\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u305f\u3081\u306b<strong>ESSID<\/strong>\u3084<strong>SSID<\/strong>(Service Set Identifier)\u3068\u547c\u3070\u308c\u308b\u6587\u5b57\u5217\u304c\u7528\u3044\u3089\u308c\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\/11\/\u7121\u7dda.jpg\" alt=\"\" class=\"wp-image-2023\" width=\"385\" height=\"378\"\/><\/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><strong>\u30c1\u30e3\u30cd\u30eb<\/strong><\/p>\n\n\n\n<p>\u7121\u7ddaLAN\u3067\u306f\u3001\u96fb\u6ce2\u306e\u5e72\u6e09\u3092\u907f\u3051\u308b\u305f\u3081\u3001\u4f7f\u7528\u3059\u308b\u96fb\u6ce2\u306e\u5468\u6ce2\u6570\u5e2f\u3092\u8907\u6570\u306e<strong>\u30c1\u30e3\u30cd\u30eb<\/strong>\u3068\u3044\u3046\u5358\u4f4d\u306b\u533a\u5207\u308a\u3001\u5404\u7121\u7ddaLAN\u3067\u7570\u306a\u308b\u30c1\u30e3\u30cd\u30eb\u3092\u4f7f\u7528\u3059\u308b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"593\" height=\"238\" src=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/\u30c1\u30e3\u30cd\u30eb.gif\" alt=\"\" class=\"wp-image-2025\"\/><\/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<\/p>\n\n\n\n<p><strong>WPA\u30ad\u30fc<\/strong>\uff08<strong>WEP\u30ad\u30fc<\/strong>\uff09<\/p>\n\n\n\n<p>\u7121\u7ddaLAN\u306e\u96fb\u6ce2\u306f\u58c1\u306a\u3069\u306e\u969c\u5bb3\u7269\u3092\u900f\u904e\u3057\u306a\u3044\u3068\u6a5f\u80fd\u3057\u306a\u3044\u3002\u3057\u304b\u3057\u3053\u308c\u3092\u5b9f\u73fe\u3059\u308b\u3068\u3001\u30ce\u30fc\u30c9\u306e\u4e0d\u6b63\u63a5\u7d9a\u3084\u901a\u4fe1\u30c7\u30fc\u30bf\u306e\u4e0d\u6b63\u508d\u53d7\u304c\u8003\u3048\u3089\u308c\u308b\u3002<\/p>\n\n\n\n<p>\u3053\u308c\u3092\u9632\u3050\u305f\u3081\u306b<strong>WPA\u30ad\u30fc<\/strong>\uff08\u307e\u305f\u306f<strong>WEP\u30ad\u30fc<\/strong>\uff09\u3068\u547c\u3070\u308c\u308b\u6587\u5b57\u5217\uff08\u307e\u305f\u306f16\u9032\u6570\uff09\u3092\u8a2d\u5b9a\u3059\u308b\u3002<\/p>\n\n\n\n<p>\u5404\u30ce\u30fc\u30c9\u306f\u3001ESSID\u306b\u5bfe\u3059\u308bWPA\u30ad\u30fc\u3092\u77e5\u3089\u306a\u3044\u3068\u7121\u7ddaLAN\u306b\u63a5\u7d9a\u3067\u304d\u305a\u3001\u30c7\u30fc\u30bf\u306e\u8aad\u307f\u53d6\u308a\u3082\u3067\u304d\u306a\u3044\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"395\" height=\"238\" src=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/WPA\u30ad\u30fc.gif\" alt=\"\" class=\"wp-image-2027\"\/><\/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<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u30fbMAC\u30a2\u30c9\u30ec\u30b9<\/h4>\n\n\n\n<p>LAN\u306b\u306f\u8907\u6570\u306e\u30ce\u30fc\u30c9\uff08\u6a5f\u5668\uff09\u304c\u63a5\u7d9a\u3055\u308c\u308b\u306e\u3067\u3001\u5404\u30ce\u30fc\u30c9\u3092\u8b58\u5225\u3067\u304d\u306a\u3044\u3068\u3044\u3051\u306a\u3044\u3002<\/p>\n\n\n\n<p>\u30ce\u30fc\u30c9\u306e\u8b58\u5225\u306b\u7528\u3044\u3089\u308c\u308b\u60c5\u5831\u3092\u30a2\u30c9\u30ec\u30b9\u3068\u3044\u3044\u3001LAN\u3067\u7528\u3044\u3089\u308c\u308b\u30a2\u30c9\u30ec\u30b9\u3092<strong>MAC\u30a2\u30c9\u30ec\u30b9<\/strong>\uff08\u7269\u7406\u30a2\u30c9\u30ec\u30b9\uff09\u3068\u3044\u3046\u3002<\/p>\n\n\n\n<p>MAC\u30a2\u30c9\u30ec\u30b9\u306f\u3001\u96a3\u63a5\u30ce\u30fc\u30c9\u9593\u306e\u4f1d\u9001\u3067\u5229\u7528\u3059\u308bLAN\u306e\u30a2\u30c9\u30ec\u30b9\u306a\u306e\u3067\u3042\u308b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"530\" height=\"185\" src=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/mac\u30a2\u30c9\u30ec\u30b9.jpg\" alt=\"\" class=\"wp-image-2028\" srcset=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/mac\u30a2\u30c9\u30ec\u30b9.jpg 530w, https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/mac\u30a2\u30c9\u30ec\u30b9-300x105.jpg 300w\" sizes=\"(max-width: 530px) 100vw, 530px\" \/><\/figure>\n\n\n\n<p>MAC\u30a2\u30c9\u30ec\u30b9\u306f\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u5c64\u306b\u76f8\u5f53\u3059\u308b48\u30d3\u30c3\u30c8\u306e\u30a2\u30c9\u30ec\u30b9\u3067\u3001\u524d\u534a24\u30d3\u30c3\u30c8\u304cNIC\u3092\u88fd\u9020\u3057\u305f\u30d9\u30f3\u30c0\u306eID\u3067\u3001\u5f8c\u534a24\u30d3\u30c3\u30c8\u304c\u56fa\u6709\u306e\u88fd\u9020\u756a\u53f7\u3068\u3044\u3046\u5f62\u5f0f\u3067\u3001NIC\u3054\u3068\u306b\u5272\u308a\u5f53\u3066\u3089\u308c\u3066\u3044\u308b\u305f\u3081\u3001NIC\u304c\u88c5\u7740\u3055\u308c\u305f\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u306f\u5fc5\u305aMAC\u30a2\u30c9\u30ec\u30b9\u3092\u6301\u3061\u91cd\u8907\u3059\u308b\u3053\u3068\u304c\u306a\u3044\u3002<\/p>\n\n\n\n<p>\u3053\u3053\u306b<strong>NIC<\/strong>\u3068\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a4\u30f3\u30bf\u30d5\u30a7\u30fc\u30b9\u30ab\u30fc\u30c9\u306e\u3053\u3068\u3067\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u306bLAN\u30b1\u30fc\u30d6\u30eb\u306e\u633f\u3057\u53e3\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u306e\u3053\u3068\u3067\u3042\u308b\u3002LAN\u30a2\u30c0\u30d7\u30bf\u3068\u3082\u3044\u3046\u3002<\/p>\n\n\n\n<p>\u307e\u305f\u3001LAN\u3067\u9001\u53d7\u4fe1\u3059\u308b\u30c7\u30fc\u30bf\uff08<strong>\u30d5\u30ec\u30fc\u30e0<\/strong>\u3068\u3044\u3046\uff09\u306e<strong>\u30d8\u30c3\u30c0<\/strong>\u306b\u306f\u9001\u4fe1\u5143\u3068\u5b9b\u5148\u306eMAC\u30a2\u30c9\u30ec\u30b9\u304c\u8a2d\u5b9a\u3055\u308c\u308b\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u305f\u3081\u3001\u30d5\u30ec\u30fc\u30e0\u306e\u30d8\u30c3\u30c0\u3092\u898b\u308c\u3070\u3001\u3069\u306e\u30ce\u30fc\u30c9\u304b\u3089\u3069\u306e\u30ce\u30fc\u30c9\u3078\u9001\u4fe1\u3057\u305f\u30d5\u30ec\u30fc\u30e0\u304b\u3001\u3092\u8b58\u5225\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u3063\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<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u30fb\u30a2\u30af\u30bb\u30b9\u5236\u5fa1<\/h4>\n\n\n\n<p>LAN\u306f\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u5c64\u306b\u76f8\u5f53\u3059\u308b\u3002<\/p>\n\n\n\n<p>\u96a3\u63a5\u30ce\u30fc\u30c9\u9593\u306e\u901a\u4fe1\u3092\u5b9f\u73fe\u3059\u308b\u306e\u304c\u3001\u305d\u306e\u76ee\u7684\u3060\u3002<\/p>\n\n\n\n<p>\u5168\u30ce\u30fc\u30c9\u304c\u5e73\u7b49\u306a\u7acb\u5834\u3067\u56de\u7dda\u3084\u30cf\u30d6\u306b\u63a5\u7d9a\u3055\u308c\u3001\u5404\u30ce\u30fc\u30c9\u304c\u81ea\u5f8b\u7684\u306b\u30d5\u30ec\u30fc\u30e0\u3092\u9001\u4fe1\u3059\u308b\u4ed5\u7d44\u307f\u306e\u305f\u3081\u3001\u8907\u6570\u306e\u30ce\u30fc\u30c9\u304c\u540c\u6642\u306b\u30d5\u30ec\u30fc\u30e0\u3092\u9001\u4fe1\u3059\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u3044\u3002<\/p>\n\n\n\n<p>\u8907\u6570\u30ce\u30fc\u30c9\u304c\u540c\u6642\u306b\u30d5\u30ec\u30fc\u30e0\u3092\u9001\u4fe1\u3057\u305f\u5834\u5408\u3001\u4f1d\u9001\u8def\u4e0a\u30d5\u30ec\u30fc\u30e0\u306e<strong>\u30b3\u30ea\u30b8\u30e7\u30f3<\/strong>\uff08<strong>\u885d\u7a81<\/strong>\uff09\u304c\u767a\u751f\u3057\u6b63\u5e38\u306a\u901a\u4fe1\u304c\u3067\u304d\u306a\u304f\u306a\u308b\u3002<\/p>\n\n\n\n<p>\u305d\u3053\u3067\u885d\u7a81\u304c\u767a\u751f\u3057\u306a\u3044\u3088\u3046\u306a\u3001\u767a\u751f\u3057\u3066\u3082\u56de\u5fa9\u3067\u304d\u308b\u3088\u3046\u306a\u300c\u5236\u5fa1\u300d\u304c\u5fc5\u8981\u306b\u306a\u3063\u3066\u304f\u308b\u306e\u3067\u3042\u308b\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306a\u78ba\u5b9f\u306b\u30ce\u30fc\u30c9\u9593\u306e\u4f1d\u9001\u3092\u884c\u3046\u305f\u3081\u306e\u5236\u5fa1\u3092<strong>\u5a92\u4f53\u30a2\u30af\u30bb\u30b9\u5236\u5fa1<\/strong>\uff08MAC:Media Access Control)\u3068\u3044\u3046\u3002<\/p>\n\n\n\n<p>\u5a92\u4f53\u30a2\u30af\u30bb\u30b9\u5236\u5fa1\u306e\u65b9\u5f0f\u3068\u3057\u3066<strong>CSMA\/CD<\/strong>\u3068<strong>CSMA\/CA<\/strong>\u304c\u4ee3\u8868\u7684\u306a\u3082\u306e\u3060\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<\/p>\n\n\n\n<p><strong>CSMA\/CD<\/strong>(Carrier Sense Multiple Access with Collision Detection)<\/p>\n\n\n\n<p>CSMA\/CD\u306f\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u3067\u7528\u3044\u3089\u308c\u308b\u3002\u6709\u7ddaLAN\u306e\u30a2\u30af\u30bb\u30b9\u5236\u5fa1\u3067\u3042\u308b\u3002<\/p>\n\n\n\n<p>\u7279\u5fb4\u306f\u6b21\u306e\u4e8c\u3064\u3067\u3042\u308b\u3002<\/p>\n\n\n\n<p>\u2460\u4f1d\u9001\u8def\u304c\u7a7a\u3044\u3066\u3044\u308c\u3070\u81ea\u7531\u306b\u30d5\u30ec\u30fc\u30e0\u3092\u9001\u51fa\u3067\u304d\u308b\u3002\u7a7a\u3044\u3066\u306a\u3044\u5834\u5408\u306f\u3001\u3057\u3070\u3089\u304f\u9001\u51fa\u3092\u898b\u5408\u308f\u305b\u3066\u3001\u6539\u3081\u3066\u4f1d\u9001\u8def\u306e\u72b6\u614b\u3092\u8abf\u3079\u308b\u3002<\/p>\n\n\n\n<p>\u2461\u885d\u7a81\uff08\u30b3\u30ea\u30b8\u30e7\u30f3\uff09\u3092\u691c\u51fa\u3057\u305f\u5834\u5408\u306f\u3001\u76f4\u3061\u306b\u30d5\u30ec\u30fc\u30e0\u306e\u9001\u51fa\u3092\u53d6\u308a\u3084\u3081\u3066\u3001\u3057\u3070\u3089\u304f\u6642\u9593\u3092\u304a\u3044\u3066\u304b\u3089\u6539\u3081\u3066\u9001\u51fa\u3059\u308b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"645\" height=\"303\" src=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8.gif\" alt=\"\" class=\"wp-image-2032\"\/><\/figure>\n\n\n\n<p>\u885d\u7a81\u691c\u51fa\u30fb\u518d\u9001\u306e\u4ed5\u7d44\u307f\u306b\u3088\u308a\u3001\u4eee\u306b\u885d\u7a81\u304c\u767a\u751f\u3057\u3066\u3082\u6700\u7d42\u7684\u306b\u306f\u6b63\u3057\u304f\u30d5\u30ec\u30fc\u30e0\u304c\u9001\u53d7\u4fe1\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u308b\u3002<\/p>\n\n\n\n<p>\u305f\u3060\u3057\u3001\u56de\u7dda\u5229\u7528\u7387\u304c\u9ad8\u304f\u306a\u308b\u3068\u3001\u5fdc\u7b54\u6642\u9593\u304c\u6025\u6fc0\u306b\u60aa\u5316\u3059\u308b\u73fe\u8c61\u3082\u751f\u3058\u3066\u3057\u307e\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<p><strong>CSMA\/CA<\/strong>(Carrier Sense Multiple Access with Collision Avoidance)<\/p>\n\n\n\n<p>CSMA\/CA\u306f\u7121\u7ddaLAN\u3067\u7528\u3044\u3089\u308c\u308b\u30a2\u30af\u30bb\u30b9\u5236\u5fa1\u65b9\u5f0f\u3067\u3042\u308b\u3002<\/p>\n\n\n\n<p>\u7121\u7dda\u3060\u3068\u885d\u7a81\uff08\u30b3\u30ea\u30b8\u30e7\u30f3\uff09\u304c\u691c\u77e5\u3067\u304d\u306a\u3044\u306e\u3067\u3001\u7121\u7dda\u5e2f\u57df\u3092\u8907\u6570\u306e\u30c1\u30e3\u30cd\u30eb\u306b\u5206\u3051\u3001\u672a\u4f7f\u7528\u306e\u30c1\u30e3\u30cd\u30eb\u3092\u7528\u3044\u3066\u9001\u4fe1\u3059\u308b\u3002<\/p>\n\n\n\n<p>\u307e\u305f\u3001\u30c1\u30e3\u30cd\u30eb\u304c\u7a7a\u3044\u3066\u3044\u3066\u3082\u3001\u30e9\u30f3\u30c0\u30e0\u306a\u6642\u9593\u3092\u5f85\u3061\u5408\u308f\u305b\u305f\u5f8c\u306b\u9001\u4fe1\u3057\u3001\u885d\u7a81\u3092\u6975\u529b\u56de\u907f\u3057\u3066\u3044\u308b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"455\" height=\"220\" src=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/\u7121\u7ddaLAN.jpg\" alt=\"\" class=\"wp-image-2033\" srcset=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/\u7121\u7ddaLAN.jpg 455w, https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/\u7121\u7ddaLAN-300x145.jpg 300w\" sizes=\"(max-width: 455px) 100vw, 455px\" \/><\/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<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u30fbLAN\u9593\u306e\u63a5\u7d9a\u88c5\u7f6e<\/h4>\n\n\n\n<p>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u4f5c\u308a\u4e0a\u3052\u308b\u305f\u3081\u306b\u306f\u3001\u76f8\u4e92\u306b\u63a5\u7d9a\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u88c5\u7f6e\u304c\u5fc5\u8981\u3067\u3042\u308b\u3002<\/p>\n\n\n\n<p>LAN\u9593\u306e\u63a5\u7d9a\u88c5\u7f6e\u306b\u306f\u3044\u304f\u3064\u304b\u7a2e\u985e\u304c\u3042\u308b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1232\" height=\"283\" src=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/LAN\u9593\u63a5\u7d9a\u88c5\u7f6e.png\" alt=\"\" class=\"wp-image-2037\" srcset=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/LAN\u9593\u63a5\u7d9a\u88c5\u7f6e.png 1232w, https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/LAN\u9593\u63a5\u7d9a\u88c5\u7f6e-300x69.png 300w, https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/LAN\u9593\u63a5\u7d9a\u88c5\u7f6e-1024x235.png 1024w, https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/LAN\u9593\u63a5\u7d9a\u88c5\u7f6e-768x176.png 768w, https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/LAN\u9593\u63a5\u7d9a\u88c5\u7f6e-1200x276.png 1200w\" sizes=\"(max-width: 1232px) 100vw, 1232px\" \/><\/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<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><strong>\u30ea\u30d4\u30fc\u30bf\u3001\u30cf\u30d6<\/strong><\/p>\n\n\n\n<p>\u7269\u7406\u5c64\u306e\u30ec\u30d9\u30eb\u3067\u30c7\u30fc\u30bf\u3092\u4e2d\u7d99\u3059\u308b\u6a5f\u5668\u3092<strong>\u30ea\u30d4\u30fc\u30bf<\/strong>\u3068\u3044\u3046\u3002<\/p>\n\n\n\n<p>LAN\u306e\u4f1d\u9001\u8ddd\u96e2\u304c\u9577\u304f\u306a\u308b\u307b\u3069\u3001\u96fb\u6c17\u4fe1\u53f7\u3084\u96fb\u6ce2\u306f\u6e1b\u8870\u3059\u308b\u3002\u30ea\u30d4\u30fc\u30bf\u306f\u3053\u308c\u3092\u5897\u5e45\u30fb\u6574\u5f62\u3059\u308b\u3053\u3068\u3067\u3001LAN\u3092\u5ef6\u9577\u3059\u308b\u6a5f\u5668\u3067\u3042\u308b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"513\" height=\"212\" src=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/\u30ea\u30d4\u30fc\u30bf.gif\" alt=\"\" class=\"wp-image-2039\"\/><\/figure>\n\n\n\n<p>\u8907\u6570\u306e\u30dd\u30fc\u30c8\uff08\u56de\u7dda\u306e\u63a5\u7d9a\u53e3\uff09\u3092\u3082\u3064\u30ea\u30d4\u30fc\u30bf\u3092<strong>\u30cf\u30d6<\/strong>\uff08\u30ea\u30d4\u30fc\u30bf\u30cf\u30d6\uff09\u3068\u3044\u3046\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"467\" height=\"285\" src=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/\u30cf\u30d6.gif\" alt=\"\" class=\"wp-image-2040\"\/><\/figure>\n\n\n\n<p>\u30ea\u30d4\u30fc\u30bf\u3084\u30cf\u30d6\u3092\u591a\u7528\u3059\u308b\u3068\u3001LAN\u3092\u62e1\u5927\u3067\u304d\u308b\u53cd\u9762\u3001\u305d\u308c\u3060\u3051\u4fe1\u53f7\u306e\u885d\u7a81\uff08\u30b3\u30ea\u30b8\u30e7\u30f3\uff09\u306e\u767a\u751f\u7387\u304c\u9ad8\u307e\u308b\u3002<\/p>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u6a5f\u5668\u304c\u30d5\u30ec\u30fc\u30e0\u3092\u7d20\u901a\u308a\u3055\u305b\u308b\u304b\u3089\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\u3000<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><strong>\u30d6\u30ea\u30c3\u30b8\u3001\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u30cf\u30d6<\/strong><\/p>\n\n\n\n<p><strong>\u30d6\u30ea\u30c3\u30b8<\/strong>\u3084<strong>\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u30cf\u30d6<\/strong>\uff08<strong>\u30ec\u30a4\u30e4\uff12\u30b9\u30a4\u30c3\u30c1<\/strong>\uff09\u306f\u3001\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u5c64\u306e\u30ec\u30d9\u30eb\u3067\u30c7\u30fc\u30bf\u3092\u4e2d\u7d99\u3059\u308b\u88c5\u7f6e\u3067\u3042\u308b\u3002<\/p>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u6a5f\u5668\u306f\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u5c64\u306e\u30a2\u30c9\u30ec\u30b9\uff08<strong>MAC\u30a2\u30c9\u30ec\u30b9<\/strong>\uff09\u3092\u8b58\u5225\u3057\u3066\u3001\u30d5\u30ec\u30fc\u30e0\uff08\u30c7\u30fc\u30bf\uff09\u3092\u4e2d\u7d99\u3059\u308b\u304b\u3069\u3046\u304b\u3092\u6c7a\u3081\u308b\u3002<\/p>\n\n\n\n<p>\u30ea\u30d4\u30fc\u30bf\u3084\u30cf\u30d6\u306b\u6bd4\u3079\u308b\u3068\u901a\u4fe1\u91cf\uff08\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\uff09\u3092\u5206\u5272\u3067\u304d\u3001\u30b3\u30ea\u30b8\u30e7\u30f3\u306e\u767a\u751f\u3092\u6291\u5236\u3067\u304d\u308b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"590\" height=\"337\" src=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/\u30d6\u30ea\u30c3\u30b8.jpg\" alt=\"\" class=\"wp-image-2041\" srcset=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/\u30d6\u30ea\u30c3\u30b8.jpg 590w, https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/\u30d6\u30ea\u30c3\u30b8-300x171.jpg 300w\" sizes=\"(max-width: 590px) 100vw, 590px\" 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srcset=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/\u30eb\u30fc\u30bf.jpg 1063w, https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/\u30eb\u30fc\u30bf-300x143.jpg 300w, https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/\u30eb\u30fc\u30bf-1024x487.jpg 1024w, https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/\u30eb\u30fc\u30bf-768x366.jpg 768w\" sizes=\"(max-width: 1063px) 100vw, 1063px\" \/><\/figure>\n\n\n\n<p>\u30eb\u30fc\u30bf\u3068\u540c\u7b49\u306e\u5f79\u5272\u3092\u679c\u305f\u3059<strong>\u30ec\u30a4\u30e4\uff13\u30b9\u30a4\u30c3\u30c1<\/strong>\u3068\u3044\u3046\u88fd\u54c1\u3082\u3042\u308b\u3002<\/p>\n\n\n\n<p>\u30ec\u30a4\u30e4\uff13\u30b9\u30a4\u30c3\u30c1\u306f\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u51e6\u7406\u3092\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u3067\u884c\u3046\u305f\u3081\u3001\u30eb\u30fc\u30bf\u306b\u6bd4\u3079\u30c7\u30fc\u30bf\u3092\u9ad8\u901f\u306b\u8ee2\u9001\u3067\u304d\u308b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"542\" src=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/01.jpg\" alt=\"\" class=\"wp-image-2044\" srcset=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/01.jpg 800w, https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/01-300x203.jpg 300w, https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/01-768x520.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" 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srcset=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4.jpg 1024w, https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4-300x143.jpg 300w, https:\/\/advanceadvance.net\/wp-content\/uploads\/2020\/11\/\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4-768x367.jpg 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" 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Area Netwok)\u3067\u3042\u308b\u3002 LAN\u306f\u30aa\u30d5\u30a3\u30b9\u7b49\u306e\u9650\u3089\u308c\u305f\u30a8\u30ea\u30a2\u3067\u69cb\u7bc9\u3055\u308c\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3060\u3002 \u4eca\u56de\u306fLAN\u306b\u3064\u3044\u3066\u89b3\u3066\u307f\u3088\u3046\u3002 \u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000 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