{"id":268,"date":"2025-03-13T10:40:00","date_gmt":"2025-03-13T01:40:00","guid":{"rendered":"https:\/\/ccna-curriculum.tech-village.co.jp\/?p=268"},"modified":"2025-10-10T17:54:32","modified_gmt":"2025-10-10T08:54:32","slug":"stp%ef%bc%88%e5%9f%ba%e6%9c%ac%e3%81%a8%e5%8b%95%e4%bd%9c%ef%bc%89","status":"publish","type":"post","link":"https:\/\/ccna-curriculum.tech-village.co.jp\/?p=268","title":{"rendered":"STP\uff08\u57fa\u672c\u3068\u52d5\u4f5c\uff09"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">STP\uff08Spanning Tree Protocol\uff09\u306e\u5f79\u5272<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u30b9\u30a4\u30c3\u30c1\u3092\u8907\u6570\u53f0\u3064\u306a\u3044\u3067\u5197\u9577\u69cb\u6210\u3092\u7d44\u3080\u3068\u3001\u30b1\u30fc\u30d6\u30eb\u304c\u30eb\u30fc\u30d7\u3092\u5f62\u6210\u3057\u3066\u3057\u307e\u3046\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u5197\u9577\u69cb\u6210\u306f\u969c\u5bb3\u767a\u751f\u6642\u306e\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u3068\u3057\u3066\u91cd\u8981\u3067\u3059\u304c\u3001\u30ec\u30a4\u30e42\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u304a\u3044\u3066\u30eb\u30fc\u30d7\u304c\u3042\u308b\u3068\u3001\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30d5\u30ec\u30fc\u30e0\u304c\u5ef6\u3005\u3068\u56de\u308a\u7d9a\u3051\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304c\u9ebb\u75fa\u3059\u308b\u300c\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30b9\u30c8\u30fc\u30e0\u300d\u304c\u767a\u751f\u3057\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><span class=\"swl-marker mark_yellow\">STP\uff08Spanning Tree Protocol\uff09<\/span><\/strong>\u306f\u3001\u3053\u306e\u3088\u3046\u306a\u30eb\u30fc\u30d7\u306b\u3088\u308b\u969c\u5bb3\u3092\u9632\u3050\u305f\u3081\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3059\u3002STP\u306f\u30b9\u30a4\u30c3\u30c1\u9593\u3067\u3084\u308a\u53d6\u308a\u3055\u308c\u308b\u60c5\u5831\u3092\u57fa\u306b\u300c\u3042\u308b\u30dd\u30fc\u30c8\u3092\u30d6\u30ed\u30c3\u30ad\u30f3\u30b0\u72b6\u614b\u306b\u3059\u308b\u300d\u3053\u3068\u3067\u3001\u30eb\u30fc\u30d7\u3092\u8ad6\u7406\u7684\u306b\u6392\u9664\u3057\u307e\u3059\u3002\u305d\u3057\u3066\u3001\u969c\u5bb3\u767a\u751f\u6642\u306b\u306f\u81ea\u52d5\u7684\u306b\u30d6\u30ed\u30c3\u30af\u3057\u3066\u3044\u305f\u30dd\u30fc\u30c8\u3092\u6709\u52b9\u5316\u3057\u3001\u8fc2\u56de\u7d4c\u8def\u3092\u5229\u7528\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3064\u307e\u308a\u3001STP\u306f\u300c\u666e\u6bb5\u306f\u30eb\u30fc\u30d7\u3092\u9632\u6b62\u3057\u3064\u3064\u3001\u969c\u5bb3\u6642\u306b\u306f\u81ea\u52d5\u3067\u30ea\u30ab\u30d0\u30ea\u3092\u884c\u3046\u4ed5\u7d44\u307f\u300d\u3068\u8003\u3048\u308b\u3068\u5206\u304b\u308a\u3084\u3059\u3044\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">BPDU\u3068\u305d\u306e\u5f79\u5272<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">STP\u3067\u30b9\u30a4\u30c3\u30c1\u9593\u306e\u5236\u5fa1\u3092\u884c\u3046\u305f\u3081\u306b\u7528\u3044\u3089\u308c\u308b\u306e\u304c <strong><span class=\"swl-marker mark_yellow\">BPDU\uff08Bridge Protocol Data Unit\uff09<\/span><\/strong> \u3067\u3059\u3002BPDU\u306f\u5c02\u7528\u306e\u30de\u30eb\u30c1\u30ad\u30e3\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9\uff080180.C200.0000\uff09\u5b9b\u306b\u5b9a\u671f\u7684\u306b\u9001\u4fe1\u3055\u308c\u3001\u30eb\u30fc\u30c8\u30d6\u30ea\u30c3\u30b8\u306e\u9078\u51fa\u3084\u30dd\u30fc\u30c8\u306e\u5f79\u5272\u6c7a\u5b9a\u306b\u5229\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">BPDU\u306b\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u4e3b\u8981\u30d5\u30a3\u30fc\u30eb\u30c9\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u30d5\u30a3\u30fc\u30eb\u30c9<\/th><th>\u8aac\u660e<\/th><th>\u30b5\u30a4\u30ba<\/th><\/tr><\/thead><tbody><tr><td>Protocol ID<\/td><td>\u5e38\u306b0<\/td><td>2byte<\/td><\/tr><tr><td>Version<\/td><td>STP\u30d0\u30fc\u30b8\u30e7\u30f3\uff08802.1D\u306a\u30890\uff09<\/td><td>1byte<\/td><\/tr><tr><td>Message Type<\/td><td>BPDU\u306e\u7a2e\u985e\uff08\u901a\u5e38: 0x00\u3001TC\u901a\u77e5: 0x80\uff09<\/td><td>1byte<\/td><\/tr><tr><td>Flags<\/td><td>\u30c8\u30dd\u30ed\u30b8\u5909\u66f4\u901a\u77e5\u3084\u5fdc\u7b54\u3092\u793a\u3059<\/td><td>1byte<\/td><\/tr><tr><td>Root ID<\/td><td>\u30eb\u30fc\u30c8\u30d6\u30ea\u30c3\u30b8\u306e\u30d6\u30ea\u30c3\u30b8ID<\/td><td>8byte<\/td><\/tr><tr><td>Path Cost<\/td><td>\u30eb\u30fc\u30c8\u306b\u81f3\u308b\u7d2f\u7a4d\u30b3\u30b9\u30c8<\/td><td>4byte<\/td><\/tr><tr><td>Bridge ID<\/td><td>\u81ea\u30b9\u30a4\u30c3\u30c1\u306e\u30d6\u30ea\u30c3\u30b8ID<\/td><td>8byte<\/td><\/tr><tr><td>Port ID<\/td><td>\u30dd\u30fc\u30c8\u756a\u53f7\u3068\u512a\u5148\u5ea6<\/td><td>2byte<\/td><\/tr><tr><td>Message Age<\/td><td>BPDU\u751f\u6210\u304b\u3089\u306e\u7d4c\u904e\u6642\u9593\uff08\u5b9f\u8cea\u30db\u30c3\u30d7\u6570\uff09<\/td><td>2byte<\/td><\/tr><tr><td>Max Age<\/td><td>BPDU\u4fdd\u6301\u6642\u9593\uff08\u30c7\u30d5\u30a9\u30eb\u30c820\u79d2\uff09<\/td><td>2byte<\/td><\/tr><tr><td>Hello Time<\/td><td>BPDU\u9001\u4fe1\u9593\u9694\uff08\u30c7\u30d5\u30a9\u30eb\u30c82\u79d2\uff09<\/td><td>2byte<\/td><\/tr><tr><td>Forward Delay<\/td><td>Listening\/Learning\u72b6\u614b\u306b\u3068\u3069\u307e\u308b\u6642\u9593\uff08\u30c7\u30d5\u30a9\u30eb\u30c815\u79d2\uff09<\/td><td>2byte<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u4e2d\u3067\u7279\u306b\u91cd\u8981\u306a\u306e\u304c <strong>Root ID\uff08\u30eb\u30fc\u30c8\u30d6\u30ea\u30c3\u30b8\u306e\u6c7a\u5b9a\uff09<\/strong> \u3068 <strong>Path Cost\uff08\u30eb\u30fc\u30c8\u307e\u3067\u306e\u8ddd\u96e2\uff09<\/strong> \u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30d6\u30ea\u30c3\u30b8ID\u3068\u30eb\u30fc\u30c8\u30d6\u30ea\u30c3\u30b8\u9078\u51fa<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u5404\u30b9\u30a4\u30c3\u30c1\u306f <span class=\"swl-marker mark_yellow\"><strong>\u30d6\u30ea\u30c3\u30b8ID<\/strong> <\/span>\u3092\u6301\u3063\u3066\u304a\u308a\u3001\u3053\u308c\u306f\u300c\u30d6\u30ea\u30c3\u30b8\u30d7\u30e9\u30a4\u30aa\u30ea\u30c6\u30a3\uff082byte\uff09\u300d\uff0b\u300cMAC\u30a2\u30c9\u30ec\u30b9\uff086byte\uff09\u300d\u3067\u69cb\u6210\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">STP\u3067\u306f\u3001\u3053\u306e\u30d6\u30ea\u30c3\u30b8ID\u304c<strong><span class=\"swl-marker mark_yellow\">\u6700\u3082\u5c0f\u3055\u3044\u30b9\u30a4\u30c3\u30c1<\/span><\/strong>\u304c\u300c\u30eb\u30fc\u30c8\u30d6\u30ea\u30c3\u30b8\u300d\u3068\u3057\u3066\u9078\u3070\u308c\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u30d6\u30ea\u30c3\u30b8\u30d7\u30e9\u30a4\u30aa\u30ea\u30c6\u30a3\u304c\u6700\u512a\u5148\u3067\u6bd4\u8f03\u3055\u308c\u3001\u540c\u3058\u3067\u3042\u308c\u3070MAC\u30a2\u30c9\u30ec\u30b9\u306e\u6570\u5024\u304c\u5c0f\u3055\u3044\u65b9\u304c\u52dd\u3061\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"is-style-icon_pen wp-block-paragraph\">\u8a66\u9a13\u5bfe\u7b56\uff1a\u300c\u30eb\u30fc\u30c8\u30d6\u30ea\u30c3\u30b8\u306f\u3069\u306e\u30b9\u30a4\u30c3\u30c1\u304b\uff1f\u300d\u3068\u3044\u3046\u8a2d\u554f\u304c\u3088\u304f\u51fa\u308b\u306e\u3067\u3001\u3053\u306e\u5224\u5b9a\u30eb\u30fc\u30eb\u306f\u78ba\u5b9f\u306b\u62bc\u3055\u3048\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30d1\u30b9\u30b3\u30b9\u30c8\u3068\u7d4c\u8def\u9078\u629e<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u30eb\u30fc\u30c8\u30d6\u30ea\u30c3\u30b8\u304c\u6c7a\u307e\u3063\u305f\u5f8c\u3001\u5404\u30b9\u30a4\u30c3\u30c1\u306f\u30eb\u30fc\u30c8\u306b\u81f3\u308b\u6700\u9069\u7d4c\u8def\u3092\u6c7a\u5b9a\u3057\u307e\u3059\u3002\u305d\u306e\u57fa\u6e96\u3068\u306a\u308b\u306e\u304c <strong><span class=\"swl-marker mark_yellow\">\u30d1\u30b9\u30b3\u30b9\u30c8<\/span><\/strong> \u3067\u3059\u3002\u30d1\u30b9\u30b3\u30b9\u30c8\u306f\u30ea\u30f3\u30af\u5e2f\u57df\u5e45\u306b\u57fa\u3065\u3044\u3066\u8a08\u7b97\u3055\u308c\u3001\u5024\u304c\u5c0f\u3055\u3044\u307b\u3069\u300c\u826f\u3044\u7d4c\u8def\u300d\u3068\u5224\u65ad\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f93\u6765\u306f\u300c\u30b3\u30b9\u30c8\uff1d1000 \u00f7 \u5e2f\u57df\u5e45(Mbps)\u300d\u3067\u7b97\u51fa\u3057\u3066\u3044\u307e\u3057\u305f\u304c\u30011Gbps\u306810Gbps\u304c\u540c\u3058\u5024\u306b\u306a\u3063\u3066\u3057\u307e\u3046\u305f\u3081\u3001\u73fe\u5728\u306fIEEE\u3067\u6539\u5b9a\u3055\u308c\u305f\u4ee5\u4e0b\u306e\u8868\u304c\u4f7f\u308f\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5e2f\u57df\u5e45<\/th><th>\u30b3\u30b9\u30c8\uff08\u6539\u5b9a\u5f8c\uff09<\/th><th>\u30b3\u30b9\u30c8\uff08\u6539\u5b9a\u524d\uff09<\/th><\/tr><\/thead><tbody><tr><td>10Gbps<\/td><td>2<\/td><td>1<\/td><\/tr><tr><td>1Gbps<\/td><td>4<\/td><td>1<\/td><\/tr><tr><td>100Mbps<\/td><td>19<\/td><td>10<\/td><\/tr><tr><td>10Mbps<\/td><td>100<\/td><td>100<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"is-style-icon_pen wp-block-paragraph\">\u8a66\u9a13\u5bfe\u7b56\uff1a\u300c\u3069\u306e\u30ea\u30f3\u30af\u3092\u512a\u5148\u3059\u308b\u304b\uff1f\u300d\u3068\u3044\u3046\u554f\u984c\u304c\u51fa\u3084\u3059\u304f\u3001\u30d1\u30b9\u30b3\u30b9\u30c8\u304c\u5c0f\u3055\u3044\u307b\u3069\u512a\u5148\u3055\u308c\u308b\u3053\u3068\u3092\u899a\u3048\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30b9\u30d1\u30cb\u30f3\u30b0\u30c4\u30ea\u30fc\u30d7\u30ed\u30c8\u30b3\u30eb\uff08STP\uff09\u306e\u57fa\u672c\u52d5\u4f5c<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u30b9\u30d1\u30cb\u30f3\u30b0\u30c4\u30ea\u30fc\u306f\u3001\u30b9\u30a4\u30c3\u30c1\u540c\u58eb\u304c\u30eb\u30fc\u30d7\u72b6\u306b\u63a5\u7d9a\u3055\u308c\u3066\u3057\u307e\u3046\u3068\u767a\u751f\u3059\u308b\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30b9\u30c8\u30fc\u30e0\u3092\u9632\u3050\u305f\u3081\u306e\u4ed5\u7d44\u307f\u3067\u3059\u3002\u30eb\u30fc\u30d7\u3092\u5b8c\u5168\u306b\u5207\u308a\u96e2\u3059\u306e\u3067\u306f\u306a\u304f\u3001\u3042\u304f\u307e\u3067\u300c\u8ad6\u7406\u7684\u306b\u30c4\u30ea\u30fc\u69cb\u9020\u300d\u306b\u5909\u3048\u3066\u3001\u901a\u4fe1\u304c\u5faa\u74b0\u3057\u306a\u3044\u3088\u3046\u306b\u5236\u5fa1\u3057\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u306b\u3001STP\u306f\u6c7a\u307e\u3063\u305f\u624b\u9806\u3067\u30dd\u30fc\u30c8\u306e\u5f79\u5272\u3092\u9078\u3093\u3067\u3044\u304d\u307e\u3059\u3002\u8a66\u9a13\u3067\u3082\u983b\u51fa\u306e\u5206\u91ce\u306a\u306e\u3067\u3001\u52d5\u4f5c\u306e\u6d41\u308c\u3092\u304d\u3061\u3093\u3068\u7406\u89e3\u3059\u308b\u3053\u3068\u304c\u5927\u5207\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30eb\u30fc\u30c8\u30d6\u30ea\u30c3\u30b8\u306e\u9078\u51fa<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u6700\u521d\u306e\u30b9\u30c6\u30c3\u30d7\u306f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5168\u4f53\u306e\u4e2d\u5fc3\u3068\u306a\u308b\u300c\u30eb\u30fc\u30c8\u30d6\u30ea\u30c3\u30b8\u300d\u3092\u6c7a\u3081\u308b\u3053\u3068\u3067\u3059\u3002\u30eb\u30fc\u30c8\u30d6\u30ea\u30c3\u30b8\u306f\u4e00\u7a2e\u306e\u57fa\u6e96\u70b9\u3067\u3001\u4ed6\u306e\u30b9\u30a4\u30c3\u30c1\u304c\u81ea\u5206\u3068\u306e\u8ddd\u96e2\u3092\u6e2c\u308b\u76ee\u5370\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5404\u30b9\u30a4\u30c3\u30c1\u306f\u5b9a\u671f\u7684\u306bBPDU\u3068\u3044\u3046\u5236\u5fa1\u30d5\u30ec\u30fc\u30e0\u3092\u9001\u308a\u5408\u3044\u307e\u3059\u3002\u305d\u306e\u4e2d\u306b\u306f\u300c\u30d6\u30ea\u30c3\u30b8ID\u300d\u3068\u3044\u3046\u8b58\u5225\u756a\u53f7\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002\u30d6\u30ea\u30c3\u30b8ID\u306f\u300c\u30d6\u30ea\u30c3\u30b8\u30d7\u30e9\u30a4\u30aa\u30ea\u30c6\u30a3\uff08\u512a\u5148\u5ea6\uff09\u300d\u3068\u300cMAC\u30a2\u30c9\u30ec\u30b9\u300d\u3092\u7d44\u307f\u5408\u308f\u305b\u305f\u3082\u306e\u3067\u3001\u6570\u5024\u3068\u3057\u3066\u6700\u3082\u5c0f\u3055\u3044\u30b9\u30a4\u30c3\u30c1\u304c\u30eb\u30fc\u30c8\u30d6\u30ea\u30c3\u30b8\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p 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class=\"wp-block-paragraph\">\u300c\u4e00\u756a\u8fd1\u3044\u300d\u3068\u306f\u7269\u7406\u7684\u306a\u8ddd\u96e2\u3067\u306f\u306a\u304f\u3001\u5e2f\u57df\u5e45\u3054\u3068\u306b\u6c7a\u307e\u3063\u3066\u3044\u308b<strong>\u30d1\u30b9\u30b3\u30b9\u30c8<\/strong>\u306e\u5408\u8a08\u304c\u6700\u3082\u5c0f\u3055\u3044\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002\u4f8b\u3048\u30701Gbps\u306e\u30ea\u30f3\u30af\u306a\u3089\u30b3\u30b9\u30c8\u306f4\u3001100Mbps\u306a\u308919\u3068\u3044\u3063\u305f\u5177\u5408\u3067\u3059\u3002\u3064\u307e\u308a\u592a\u3044\u9053\u307b\u3069\u5b89\u3044\u30b3\u30b9\u30c8\u3067\u76ee\u7684\u5730\u306b\u884c\u3051\u308b\u3001\u3068\u3044\u3046\u30a4\u30e1\u30fc\u30b8\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3082\u3057\u540c\u3058\u30d1\u30b9\u30b3\u30b9\u30c8\u3067\u7af6\u308a\u5408\u3063\u305f\u5834\u5408\u306f\u3001\u2460\u9001\u4fe1\u5143\u30d6\u30ea\u30c3\u30b8ID\u3001\u2461\u9001\u4fe1\u5143\u30dd\u30fc\u30c8ID 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class=\"wp-block-paragraph\">\u30eb\u30fc\u30c8\u30d6\u30ea\u30c3\u30b8\u306b\u3042\u308b\u30dd\u30fc\u30c8\u306f\u3059\u3079\u3066\u6307\u5b9a\u30dd\u30fc\u30c8\u306b\u306a\u308b\u306e\u304c\u30eb\u30fc\u30eb\u3067\u3059\u3002\u305d\u308c\u4ee5\u5916\u306e\u30ea\u30f3\u30af\u3067\u306f\u3001\u307e\u305a\u30eb\u30fc\u30c8\u30d1\u30b9\u30b3\u30b9\u30c8\u3092\u6bd4\u8f03\u3057\u3001\u540c\u3058\u306a\u3089\u30d6\u30ea\u30c3\u30b8ID\u3001\u305d\u308c\u3067\u3082\u540c\u3058\u306a\u3089\u30dd\u30fc\u30c8ID\u3067\u6c7a\u5b9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u3053\u3067\u5927\u4e8b\u306a\u306e\u306f\u300c\u30eb\u30fc\u30c8\u30dd\u30fc\u30c8\u306f\u53d7\u4fe1\u5074\u3001\u6307\u5b9a\u30dd\u30fc\u30c8\u306f\u9001\u4fe1\u5074\u300d\u3068\u3044\u3046\u5f79\u5272\u5206\u62c5\u3067\u3059\u3002\u8a66\u9a13\u554f\u984c\u3067\u306f\u300c\u3069\u3061\u3089\u306e\u30dd\u30fc\u30c8\u304cBPDU\u3092\u9001\u308a\u51fa\u3059\u306e\u304b\uff1f\u300d\u3068\u3044\u3046\u89b3\u70b9\u3067\u554f\u308f\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u975e\u6307\u5b9a\u30dd\u30fc\u30c8\uff08NDP\uff09\u306e\u9078\u51fa<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u6700\u5f8c\u306b\u6b8b\u3063\u305f\u30dd\u30fc\u30c8\u306f\u3059\u3079\u3066\u975e\u6307\u5b9a\u30dd\u30fc\u30c8\u3068\u306a\u308a\u3001\u30d6\u30ed\u30c3\u30ad\u30f3\u30b0\u72b6\u614b\u306b\u5165\u308a\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u901a\u5e38\u306e\u30c7\u30fc\u30bf\u30d5\u30ec\u30fc\u30e0\u306f\u6d41\u308c\u305a\u3001BPDU\u306e\u53d7\u4fe1\u3060\u3051\u3092\u7d9a\u3051\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u30eb\u30fc\u30d7\u3092\u672a\u7136\u306b\u9632\u3050\u306e\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3064\u307e\u308aSTP\u3067\u306f\u3001\u30eb\u30fc\u30c8\u30dd\u30fc\u30c8\u3068\u6307\u5b9a\u30dd\u30fc\u30c8\u3060\u3051\u304c\u5b9f\u969b\u306b\u901a\u4fe1\u3092\u6d41\u3057\u3001\u975e\u6307\u5b9a\u30dd\u30fc\u30c8\u306f\u30eb\u30fc\u30d7\u3092\u907f\u3051\u308b\u305f\u3081\u306e\u5b89\u5168\u5f01\u306e\u3088\u3046\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u5404\u30dd\u30fc\u30c8\u306e\u5f79\u5272\u307e\u3068\u3081<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u30dd\u30fc\u30c8\u306e\u7a2e\u985e<\/th><th>\u72b6\u614b<\/th><th>\u9078\u51fa\u57fa\u6e96\u3068\u7279\u5fb4<\/th><\/tr><\/thead><tbody><tr><td>\u30eb\u30fc\u30c8\u30dd\u30fc\u30c8 (RP)<\/td><td>Forwarding<\/td><td>\u5404\u975e\u30eb\u30fc\u30c8\u30d6\u30ea\u30c3\u30b8\u30671\u3064\u3060\u3051\u9078\u3070\u308c\u308b\u3002\u30eb\u30fc\u30c8\u30d6\u30ea\u30c3\u30b8\u306b\u6700\u3082\u8fd1\u3044\u30dd\u30fc\u30c8\u3002<\/td><\/tr><tr><td>\u6307\u5b9a\u30dd\u30fc\u30c8 (DP)<\/td><td>Forwarding<\/td><td>\u5404\u30ea\u30f3\u30af\u30671\u3064\u3060\u3051\u9078\u3070\u308c\u308b\u3002\u30eb\u30fc\u30c8\u30d6\u30ea\u30c3\u30b8\u306e\u5168\u30dd\u30fc\u30c8\u306f\u5fc5\u305a\u6307\u5b9a\u30dd\u30fc\u30c8\u3002<\/td><\/tr><tr><td>\u975e\u6307\u5b9a\u30dd\u30fc\u30c8 (NDP)<\/td><td>Blocking<\/td><td>RP\u3084DP\u306b\u9078\u3070\u308c\u306a\u304b\u3063\u305f\u6b8b\u308a\u306e\u30dd\u30fc\u30c8\u3002\u30c7\u30fc\u30bf\u3092\u6d41\u3055\u305a\u30eb\u30fc\u30d7\u3092\u9632\u3050\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">STP\u6c7a\u5b9a\u306e\u6d41\u308c<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u3069\u3093\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u69cb\u6210\u3067\u3082\u3001STP\u306e\u52d5\u304d\u306f\u6b21\u306e\u9806\u756a\u3067\u6574\u7406\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30eb\u30fc\u30c8\u30d6\u30ea\u30c3\u30b8\u3092\u6c7a\u5b9a\uff08\u30d6\u30ea\u30c3\u30b8ID\u304c\u6700\u5c0f\u306e\u30b9\u30a4\u30c3\u30c1\uff09<\/li>\n\n\n\n<li>\u30eb\u30fc\u30c8\u30dd\u30fc\u30c8\u3092\u6c7a\u5b9a\uff08\u5404\u975e\u30eb\u30fc\u30c8\u30d6\u30ea\u30c3\u30b8\u3054\u3068\u306b\u6700\u5c0f\u306e\u30d1\u30b9\u30b3\u30b9\u30c8\u3092\u6301\u3064\u30dd\u30fc\u30c8\uff09<\/li>\n\n\n\n<li>\u6307\u5b9a\u30dd\u30fc\u30c8\u3092\u6c7a\u5b9a\uff08\u5404\u30ea\u30f3\u30af\u3054\u3068\u306b\u30eb\u30fc\u30c8\u306b\u6700\u3082\u8fd1\u3044\u30dd\u30fc\u30c8\uff09<\/li>\n\n\n\n<li>\u975e\u6307\u5b9a\u30dd\u30fc\u30c8\u3092\u6c7a\u5b9a\uff08\u6b8b\u308a\u306e\u30dd\u30fc\u30c8\u3002\u30d6\u30ed\u30c3\u30ad\u30f3\u30b0\u3067\u30eb\u30fc\u30d7\u3092\u9632\u3050\uff09<\/li>\n<\/ol>\n\n\n\n<p 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[&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"swell_btn_cv_data":"","footnotes":""},"categories":[12],"tags":[],"class_list":["post-268","post","type-post","status-publish","format-standard","hentry","category-network-access"],"_links":{"self":[{"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=\/wp\/v2\/posts\/268","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=268"}],"version-history":[{"count":2,"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=\/wp\/v2\/posts\/268\/revisions"}],"predecessor-version":[{"id":646,"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=\/wp\/v2\/posts\/268\/revisions\/646"}],"wp:attachment":[{"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=268"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=268"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=268"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}