{"id":272,"date":"2025-03-13T10:56:00","date_gmt":"2025-03-13T01:56:00","guid":{"rendered":"https:\/\/ccna-curriculum.tech-village.co.jp\/?p=272"},"modified":"2025-10-11T15:33:40","modified_gmt":"2025-10-11T06:33:40","slug":"rstp%e3%83%bbmstp","status":"publish","type":"post","link":"https:\/\/ccna-curriculum.tech-village.co.jp\/?p=272","title":{"rendered":"RSTP"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">RSTP\uff08Rapid Spanning Tree Protocol\uff09\u3068\u306f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><span class=\"swl-marker mark_yellow\">RSTP<\/span><\/strong>\u306f\u5f93\u6765\u306eSTP\u3092\u6539\u826f\u3057\u3001\u9ad8\u901f\u53ce\u675f\u3092\u53ef\u80fd\u306b\u3057\u305f\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3059\u3002STP\u304cIEEE 802.1D\u3068\u3057\u3066\u6a19\u6e96\u5316\u3055\u308c\u3066\u3044\u305f\u306e\u306b\u5bfe\u3057\u3066\u3001RSTP\u306fIEEE 802.1W\u3068\u3057\u3066\u6a19\u6e96\u5316\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u57fa\u672c\u7684\u306a\u30c4\u30ea\u30fc\u5f62\u6210\u306e\u6d41\u308c\u306fSTP\u3068\u540c\u3058\u3067\u3001\u30eb\u30fc\u30c8\u30d6\u30ea\u30c3\u30b8\u306e\u9078\u51fa\u3001\u30eb\u30fc\u30c8\u30dd\u30fc\u30c8\u306e\u9078\u51fa\u3001\u6307\u5b9a\u30dd\u30fc\u30c8\u306e\u9078\u51fa\u3068\u3044\u3046\u624b\u9806\u3067\u9032\u307f\u307e\u3059\u3002\u305f\u3060\u3057RSTP\u3067\u306f\u975e\u6307\u5b9a\u30dd\u30fc\u30c8\u306e\u4ee3\u308f\u308a\u306b\u4ee3\u66ff\u30dd\u30fc\u30c8\u3084\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u30dd\u30fc\u30c8\u3068\u3044\u3046\u5f79\u5272\u304c\u8ffd\u52a0\u3055\u308c\u3001\u53ce\u675f\u901f\u5ea6\u304c\u683c\u6bb5\u306b\u5411\u4e0a\u3057\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">RSTP\u306e\u7279\u5fb4<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30c8\u30dd\u30ed\u30b8\u30fc\u5909\u66f4\u304c\u3042\u3063\u305f\u5834\u5408\u3001STP\u304c\u6700\u592750\u79d2\u304b\u304b\u308b\u306e\u306b\u5bfe\u3057\u3001RSTP\u3067\u306f\u6570\u79d2\u4ee5\u5185\u306b\u53ce\u675f\u3067\u304d\u308b<\/li>\n\n\n\n<li>\u30c4\u30ea\u30fc\u306f\u300c\u30eb\u30fc\u30c8\u30d6\u30ea\u30c3\u30b8\u9078\u51fa \u2192 \u30eb\u30fc\u30c8\u30dd\u30fc\u30c8\u9078\u51fa \u2192 \u6307\u5b9a\u30dd\u30fc\u30c8\u9078\u51fa \u2192 \u4ee3\u66ff\u30dd\u30fc\u30c8\u9078\u51fa\u300d\u3068\u3044\u3046\u6d41\u308c\u3067\u5f62\u6210<\/li>\n\n\n\n<li>\u30dd\u30fc\u30c8\u5f79\u5272\u306f4\u7a2e\u985e\uff08\u30eb\u30fc\u30c8\u30dd\u30fc\u30c8\u3001\u6307\u5b9a\u30dd\u30fc\u30c8\u3001\u4ee3\u66ff\u30dd\u30fc\u30c8\u3001\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u30dd\u30fc\u30c8\uff09<\/li>\n\n\n\n<li>\u30dd\u30fc\u30c8\u72b6\u614b\u306f3\u7a2e\u985e\uff08\u30c7\u30a3\u30b9\u30ab\u30fc\u30c7\u30a3\u30f3\u30b0\u3001\u30e9\u30fc\u30cb\u30f3\u30b0\u3001\u30d5\u30a9\u30ef\u30fc\u30c7\u30a3\u30f3\u30b0\uff09\u306b\u7c21\u7565\u5316<\/li>\n\n\n\n<li>STP\u3068\u306e\u4e92\u63db\u6027\u304c\u3042\u308a\u3001RSTP\u30e2\u30fc\u30c9\u3068STP\u30e2\u30fc\u30c9\u3092\u6df7\u5728\u3055\u305b\u308b\u3053\u3068\u3082\u53ef\u80fd<\/li>\n\n\n\n<li>BPDU\u306b\u300c\u63d0\u6848\uff08Proposal\uff09\u300d\u3068\u300c\u5408\u610f\uff08Agreement\uff09\u300d\u3092\u542b\u3081\u308b\u3053\u3068\u3067\u8fc5\u901f\u306a\u30cd\u30b4\u30b7\u30a8\u30fc\u30b7\u30e7\u30f3\u304c\u53ef\u80fd<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">RSTP\u306e\u30dd\u30fc\u30c8\u5f79\u5272<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">RSTP\u3067\u306fSTP\u306b\u5b58\u5728\u3057\u306a\u304b\u3063\u305f\u65b0\u3057\u3044\u5f79\u5272\u304c\u8ffd\u52a0\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u30eb\u30fc\u30c8\u30dd\u30fc\u30c8\u3068\u6307\u5b9a\u30dd\u30fc\u30c8\u306fSTP\u3068\u540c\u3058\u3067\u3059\u304c\u3001\u4ee3\u66ff\u30dd\u30fc\u30c8\u3068\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u30dd\u30fc\u30c8\u306fRSTP\u72ec\u81ea\u306e\u3082\u306e\u3067\u3059\u3002<\/p>\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>\u8aac\u660e<\/th><\/tr><\/thead><tbody><tr><td>\u30eb\u30fc\u30c8\u30dd\u30fc\u30c8\uff08RP\uff09<\/td><td>Forwarding<\/td><td>\u975e\u30eb\u30fc\u30c8\u30d6\u30ea\u30c3\u30b8\u3054\u3068\u306b1\u3064\u3060\u3051\u9078\u3070\u308c\u308b\u3002\u30eb\u30fc\u30c8\u30d6\u30ea\u30c3\u30b8\u306b\u6700\u3082\u8fd1\u3044\u30dd\u30fc\u30c8\u3002\u30d1\u30b9\u30b3\u30b9\u30c8\u3001\u30d6\u30ea\u30c3\u30b8ID\u3001\u30dd\u30fc\u30c8ID\u306e\u9806\u3067\u6bd4\u8f03\u3002<\/td><\/tr><tr><td>\u6307\u5b9a\u30dd\u30fc\u30c8\uff08DP\uff09<\/td><td>Forwarding<\/td><td>\u5404\u30ea\u30f3\u30af\u3067\u5fc5\u305a1\u3064\u9078\u3070\u308c\u308b\u3002\u30eb\u30fc\u30c8\u30d6\u30ea\u30c3\u30b8\u306b\u6700\u3082\u8fd1\u3044\u30dd\u30fc\u30c8\u304c\u9078\u3070\u308c\u308b\u3002<\/td><\/tr><tr><td>\u4ee3\u66ff\u30dd\u30fc\u30c8\uff08AP\uff09<\/td><td>Discarding<\/td><td>\u30eb\u30fc\u30c8\u30dd\u30fc\u30c8\u306e\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u7528\u30dd\u30fc\u30c8\u3002\u30eb\u30fc\u30c8\u30dd\u30fc\u30c8\u969c\u5bb3\u6642\u306b\u5373\u5ea7\u306b\u5f79\u5272\u3092\u5f15\u304d\u7d99\u3050\u3002STP\u306e\u975e\u6307\u5b9a\u30dd\u30fc\u30c8\u306b\u76f8\u5f53\u3057\u3001Cisco\u306eUplinkFast\u3068\u540c\u7b49\u3002<\/td><\/tr><tr><td>\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u30dd\u30fc\u30c8\uff08BP\uff09<\/td><td>Discarding<\/td><td>\u6307\u5b9a\u30dd\u30fc\u30c8\u306e\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u3002\u6307\u5b9a\u30dd\u30fc\u30c8\u969c\u5bb3\u6642\u306b\u5373\u5ea7\u306b\u5f79\u5272\u3092\u5f15\u304d\u7d99\u3050\u3002\u30ea\u30d4\u30fc\u30bf\u30cf\u30d6\u306a\u3069\u5171\u6709\u30e1\u30c7\u30a3\u30a2\u63a5\u7d9a\u3067\u767a\u751f\u3057\u3001\u30dd\u30fc\u30c8ID\u304c\u5c0f\u3055\u3044\u65b9\u304cDP\u306b\u306a\u308a\u3001\u3082\u3046\u4e00\u65b9\u304cBP\u306b\u306a\u308b\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ee3\u66ff\u30dd\u30fc\u30c8\u306fSTP\u306e\u975e\u6307\u5b9a\u30dd\u30fc\u30c8\u3068\u540c\u3058\u9078\u51fa\u65b9\u6cd5\u3067\u3059\u304c\u3001\u5207\u308a\u66ff\u3048\u304c\u6570\u79d2\u3067\u5b8c\u4e86\u3057\u307e\u3059\u3002\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u30dd\u30fc\u30c8\u306fRSTP\u7279\u6709\u306e\u3082\u306e\u3067\u3001\u4e3b\u306b\u5171\u6709\u30e1\u30c7\u30a3\u30a2\u74b0\u5883\u3067\u306e\u307f\u51fa\u73fe\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">RSTP\u306e\u30dd\u30fc\u30c8\u72b6\u614b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">RSTP\u3067\u306fSTP\u306e5\u6bb5\u968e\u306e\u30dd\u30fc\u30c8\u72b6\u614b\u304c\u6574\u7406\u3055\u308c\u30013\u3064\u306b\u7d71\u5408\u3055\u308c\u307e\u3057\u305f\u3002\u3053\u308c\u306b\u3088\u308a\u30b7\u30f3\u30d7\u30eb\u3067\u5206\u304b\u308a\u3084\u3059\u304f\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>STP\u306e\u72b6\u614b<\/th><th>RSTP\u306e\u72b6\u614b<\/th><th>\u52d5\u4f5c<\/th><th>MAC\u5b66\u7fd2<\/th><\/tr><\/thead><tbody><tr><td>\u30c7\u30a3\u30bb\u30fc\u30d6\u30eb<\/td><td>\u30c7\u30a3\u30b9\u30ab\u30fc\u30c7\u30a3\u30f3\u30b0<\/td><td>\u30d5\u30ec\u30fc\u30e0\u3092\u8ee2\u9001\u305b\u305a\u3001MAC\u5b66\u7fd2\u3082\u3057\u306a\u3044\u3002BPDU\u306f\u53d7\u4fe1\u3059\u308b\u3002<\/td><td>\u00d7<\/td><\/tr><tr><td>\u30d6\u30ed\u30c3\u30ad\u30f3\u30b0<\/td><td>\u30c7\u30a3\u30b9\u30ab\u30fc\u30c7\u30a3\u30f3\u30b0<\/td><td>\u540c\u4e0a<\/td><td>\u00d7<\/td><\/tr><tr><td>\u30ea\u30b9\u30cb\u30f3\u30b0<\/td><td>\u30c7\u30a3\u30b9\u30ab\u30fc\u30c7\u30a3\u30f3\u30b0<\/td><td>\u540c\u4e0a<\/td><td>\u00d7<\/td><\/tr><tr><td>\u30e9\u30fc\u30cb\u30f3\u30b0<\/td><td>\u30e9\u30fc\u30cb\u30f3\u30b0<\/td><td>\u30d5\u30ec\u30fc\u30e0\u306f\u8ee2\u9001\u3057\u306a\u3044\u304c\u3001MAC\u30a2\u30c9\u30ec\u30b9\u3092\u5b66\u7fd2\u3059\u308b\u3002BPDU\u306f\u9001\u53d7\u4fe1\u3059\u308b\u3002<\/td><td>\u25cb<\/td><\/tr><tr><td>\u30d5\u30a9\u30ef\u30fc\u30c7\u30a3\u30f3\u30b0<\/td><td>\u30d5\u30a9\u30ef\u30fc\u30c7\u30a3\u30f3\u30b0<\/td><td>\u30d5\u30ec\u30fc\u30e0\u8ee2\u9001\u3068MAC\u5b66\u7fd2\u3001BPDU\u9001\u53d7\u4fe1\u3092\u884c\u3046\u3002<\/td><td>\u25cb<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u3088\u3046\u306bRSTP\u3067\u306f\u300c\u30c7\u30a3\u30b9\u30ab\u30fc\u30c7\u30a3\u30f3\u30b0 \u2192 \u30e9\u30fc\u30cb\u30f3\u30b0 \u2192 \u30d5\u30a9\u30ef\u30fc\u30c7\u30a3\u30f3\u30b0\u300d\u306e\u6d41\u308c\u3067\u53ce\u675f\u304c\u884c\u308f\u308c\u3001\u5f93\u6765\u306eSTP\u306b\u6bd4\u3079\u3066\u5727\u5012\u7684\u306b\u9ad8\u901f\u306b\u5207\u308a\u66ff\u308f\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"is-style-icon_pen wp-block-paragraph\">\u8a66\u9a13\u5bfe\u7b56\uff1a<br>\u30fb\u4ee3\u66ff\u30dd\u30fc\u30c8\uff08AP\uff09\u306fSTP\u306e\u975e\u6307\u5b9a\u30dd\u30fc\u30c8\u306b\u76f8\u5f53\u3059\u308b\u304c\u3001\u5207\u308a\u66ff\u3048\u304c\u901f\u3044<br>\u30fb\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u30dd\u30fc\u30c8\uff08BP\uff09\u306fRSTP\u7279\u6709\u3067\u3042\u308a\u3001\u5171\u6709\u30e1\u30c7\u30a3\u30a2\u3067\u51fa\u73fe\u3059\u308b<br>\u30fb\u30dd\u30fc\u30c8\u72b6\u614b\u306f3\u7a2e\u985e\u306b\u7d71\u5408\u3055\u308c\u3001\u4ed5\u7d44\u307f\u304c\u7c21\u6f54\u306b\u306a\u3063\u3066\u3044\u308b<br>\u30fbRSTP\u306fSTP\u3068\u4e92\u63db\u6027\u304c\u3042\u308a\u3001\u6df7\u5728\u74b0\u5883\u3067\u3082\u52d5\u4f5c\u3059\u308b<br><br>\u3053\u306e\u77e5\u8b58\u3092\u62bc\u3055\u3048\u3066\u304a\u3051\u3070\u3001STP\u3068RSTP\u306e\u9055\u3044\u3092\u554f\u3046\u8a66\u9a13\u554f\u984c\u306b\u81ea\u4fe1\u3092\u6301\u3063\u3066\u5bfe\u5fdc\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">RSTP &#8211; BPDU\u30d5\u30a9\u30fc\u30de\u30c3\u30c8<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">RSTP\u3067\u3082BPDU\uff08Bridge Protocol Data Unit\uff09\u306e\u57fa\u672c\u69cb\u9020\u306fSTP\u3068\u540c\u3058\u3067\u3059\u304c\u3001\u3044\u304f\u3064\u304b\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u306e\u5024\u3084\u610f\u5473\u304c\u5909\u66f4\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u7279\u306b\u300c\u30d0\u30fc\u30b8\u30e7\u30f3\u300d\u300c\u30e1\u30c3\u30bb\u30fc\u30b8\u30bf\u30a4\u30d7\u300d\u300c\u30d5\u30e9\u30b0\u300d\u304cSTP\u3068\u7570\u306a\u308b\u70b9\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">RSTP\u306eBPDU\u30d5\u30a9\u30fc\u30de\u30c3\u30c8<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u30d5\u30a3\u30fc\u30eb\u30c9<\/th><th>\u65e5\u672c\u8a9e\u8868\u8a18<\/th><th>\u8aac\u660e<\/th><th>\u30b5\u30a4\u30ba\uff08byte\uff09<\/th><\/tr><\/thead><tbody><tr><td>Protocol ID<\/td><td>\u30d7\u30ed\u30c8\u30b3\u30ebID<\/td><td>\u5e38\u306b 0<\/td><td>2<\/td><\/tr><tr><td>Version<\/td><td>\u30d0\u30fc\u30b8\u30e7\u30f3<\/td><td>RSTP\u3067\u306f 802.1w = 2<\/td><td>1<\/td><\/tr><tr><td>Message Type<\/td><td>\u30e1\u30c3\u30bb\u30fc\u30b8\u30bf\u30a4\u30d7<\/td><td>RSTP\u306eBPDU\u30bf\u30a4\u30d7\u306f 0x02<\/td><td>1<\/td><\/tr><tr><td>Flags<\/td><td>\u30d5\u30e9\u30b0<\/td><td>\u5404\u7a2e\u5236\u5fa1\u30d3\u30c3\u30c8\uff08\u8a73\u7d30\u306f\u5f8c\u8ff0\uff09<\/td><td>1<\/td><\/tr><tr><td>Root ID<\/td><td>\u30eb\u30fc\u30c8ID<\/td><td>\u30eb\u30fc\u30c8\u30d6\u30ea\u30c3\u30b8\u306e\u30d6\u30ea\u30c3\u30b8ID<\/td><td>8<\/td><\/tr><tr><td>Path Cost<\/td><td>\u30d1\u30b9\u30b3\u30b9\u30c8<\/td><td>\u30eb\u30fc\u30c8\u306b\u81f3\u308b\u307e\u3067\u306e\u7d2f\u7a4d\u30b3\u30b9\u30c8<\/td><td>4<\/td><\/tr><tr><td>Bridge ID<\/td><td>\u30d6\u30ea\u30c3\u30b8ID<\/td><td>\u9001\u4fe1\u5143\u30b9\u30a4\u30c3\u30c1\u306e\u30d6\u30ea\u30c3\u30b8ID<\/td><td>8<\/td><\/tr><tr><td>Port ID<\/td><td>\u30dd\u30fc\u30c8ID<\/td><td>\u30dd\u30fc\u30c8\u30d7\u30e9\u30a4\u30aa\u30ea\u30c6\u30a3\uff0b\u30dd\u30fc\u30c8\u756a\u53f7<\/td><td>2<\/td><\/tr><tr><td>Message Age<\/td><td>\u30e1\u30c3\u30bb\u30fc\u30b8\u30a8\u30fc\u30b8<\/td><td>BPDU\u751f\u6210\u304b\u3089\u306e\u7d4c\u904e\u79d2\u6570\uff08\u5b9f\u8cea\u30db\u30c3\u30d7\u6570\uff09<\/td><td>2<\/td><\/tr><tr><td>Max Age<\/td><td>\u6700\u5927\u30a8\u30fc\u30b8<\/td><td>BPDU\u4fdd\u6301\u6642\u9593\u3002\u30c7\u30d5\u30a9\u30eb\u30c820\u79d2<\/td><td>2<\/td><\/tr><tr><td>Hello Time<\/td><td>Hello\u30bf\u30a4\u30e0<\/td><td>BPDU\u9001\u4fe1\u9593\u9694\u3002\u30c7\u30d5\u30a9\u30eb\u30c82\u79d2<\/td><td>2<\/td><\/tr><tr><td>Forward Delay<\/td><td>\u8ee2\u9001\u9045\u5ef6<\/td><td>Listening\/Learning\u306b\u6ede\u5728\u3059\u308b\u6642\u9593\uff08\u30c7\u30d5\u30a9\u30eb\u30c815\u79d2\uff09\u3002RSTP\u540c\u58eb\u3067\u306f\u307b\u307c\u4f7f\u308f\u308c\u305a\u3001STP\u4e92\u63db\u6642\u306e\u307f\u6709\u52b9\u3002<\/td><td>2<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u30d5\u30e9\u30b0\u306e\u5f79\u5272<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">RSTP\u3067\u306f\u3001STP\u3067\u306f\u672a\u4f7f\u7528\u3060\u3063\u305f\u30d3\u30c3\u30c8\u3092\u6d3b\u7528\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001<strong><span class=\"swl-marker mark_yellow\">\u30bf\u30a4\u30de\u30fc\u306b\u4f9d\u5b58\u305b\u305a\u306b\u30cd\u30b4\u30b7\u30a8\u30fc\u30b7\u30e7\u30f3\u306b\u3088\u308b\u9ad8\u901f\u53ce\u675f<\/span><\/strong>\u3092\u5b9f\u73fe\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>bit1\uff08Proposal\uff09<\/strong><br>\u63d0\u6848\u30d3\u30c3\u30c8\u3002\u3042\u308b\u30dd\u30fc\u30c8\u3092\u6307\u5b9a\u30dd\u30fc\u30c8\u3068\u3057\u3066\u4f7f\u3044\u305f\u3044\u5834\u5408\u306b\u9001\u4fe1\u3002<\/li>\n\n\n\n<li><strong>bit2-3\uff08Port Role\uff09<\/strong><br>\u30dd\u30fc\u30c8\u306e\u5f79\u5272\u3092\u793a\u30592\u30d3\u30c3\u30c8\u3002\n<ul class=\"wp-block-list\">\n<li>00 = \u4e0d\u4f7f\u7528<\/li>\n\n\n\n<li>01 = \u30eb\u30fc\u30c8\u30dd\u30fc\u30c8<\/li>\n\n\n\n<li>10 = \u6307\u5b9a\u30dd\u30fc\u30c8<\/li>\n\n\n\n<li>11 = \u4ee3\u66ff\u30dd\u30fc\u30c8\u307e\u305f\u306f\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u30dd\u30fc\u30c8<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>bit4\uff08Learning\uff09<\/strong><br>\u5b66\u7fd2\u72b6\u614b\u306b\u3042\u308b\u3053\u3068\u3092\u793a\u3059\u3002MAC\u30a2\u30c9\u30ec\u30b9\u3092\u5b66\u7fd2\u4e2d\u3067\u3042\u308b\u3053\u3068\u3092\u610f\u5473\u3059\u308b\u3002<\/li>\n\n\n\n<li><strong>bit5\uff08Forwarding\uff09<\/strong><br>\u30d5\u30a9\u30ef\u30fc\u30c7\u30a3\u30f3\u30b0\u72b6\u614b\u306b\u3042\u308b\u3053\u3068\u3092\u793a\u3059\u3002\u5b9f\u969b\u306b\u30d5\u30ec\u30fc\u30e0\u3092\u8ee2\u9001\u4e2d\u3002<\/li>\n\n\n\n<li><strong>bit6\uff08Agreement\uff09<\/strong><br>\u5408\u610f\u30d3\u30c3\u30c8\u3002\u76f8\u624b\u304b\u3089\u306e\u63d0\u6848\u306b\u540c\u610f\u3057\u305f\u3053\u3068\u3092\u793a\u3057\u3001\u5373\u5ea7\u306b\u30dd\u30fc\u30c8\u3092\u30d5\u30a9\u30ef\u30fc\u30c7\u30a3\u30f3\u30b0\u3078\u79fb\u884c\u53ef\u80fd\u306b\u3059\u308b\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u9ad8\u901f\u53ce\u675f\u306e\u4ed5\u7d44\u307f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">RSTP\u3067\u306f\u3001\u30b9\u30a4\u30c3\u30c1\u9593\u304c\u30dd\u30a4\u30f3\u30c8\u30c4\u30fc\u30dd\u30a4\u30f3\u30c8\u3067\u63a5\u7d9a\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u3001\u30d7\u30ed\u30dd\u30fc\u30b6\u30ebBPDU\uff08\u63d0\u6848\uff09<strong>\u3068<\/strong>\u30a2\u30b0\u30ea\u30fc\u30e1\u30f3\u30c8BPDU\uff08\u5408\u610f\uff09\u3092\u3084\u308a\u53d6\u308a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u3042\u308b\u30b9\u30a4\u30c3\u30c1\u304c\u300c\u3053\u306e\u30dd\u30fc\u30c8\u3092\u6307\u5b9a\u30dd\u30fc\u30c8\u306b\u3057\u305f\u3044\u300d\u3068\u63d0\u6848\u3059\u308b\uff08Proposal\uff09\u3002<\/li>\n\n\n\n<li>\u76f8\u624b\u30b9\u30a4\u30c3\u30c1\u304c\u305d\u306e\u63d0\u6848\u3092\u53d7\u3051\u5165\u308c\u308c\u3070\u3001Agreement\u30d3\u30c3\u30c8\u3092\u7acb\u3066\u305fBPDU\u3092\u8fd4\u4fe1\u3059\u308b\u3002<\/li>\n\n\n\n<li>\u3053\u306e\u5408\u610f\u306b\u3088\u308a\u3001\u4e21\u65b9\u306e\u30dd\u30fc\u30c8\u306f\u5373\u5ea7\u306b\u30d5\u30a9\u30ef\u30fc\u30c7\u30a3\u30f3\u30b0\u3078\u79fb\u884c\u3059\u308b\u3002<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u3088\u3046\u306bRSTP\u306f\u3001\u5f93\u6765\u306eSTP\u306e\u3088\u3046\u306bHello\u30bf\u30a4\u30de\u30fc\u3084Forward Delay\u3092\u5f85\u305f\u305a\u306b\u3001\u30cd\u30b4\u30b7\u30a8\u30fc\u30b7\u30e7\u30f3\u3060\u3051\u3067\u30dd\u30fc\u30c8\u3092\u6709\u52b9\u5316\u3067\u304d\u308b\u305f\u3081\u3001\u6570\u79d2\u4ee5\u5185\u306e\u53ce\u675f\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"is-style-icon_pen wp-block-paragraph\">\u8a66\u9a13\u5bfe\u7b56\uff1a\u300cRSTP\u304c\u9ad8\u901f\u306b\u53ce\u675f\u3067\u304d\u308b\u7406\u7531\u306f\uff1f\u300d\u3068\u554f\u308f\u308c\u305f\u5834\u5408\u3001<strong>Proposal\/Agreement\u306e\u4ed5\u7d44\u307f<\/strong>\u3068<strong>\u672a\u4f7f\u7528\u30d3\u30c3\u30c8\u3092\u6d3b\u7528\u3057\u305fBPDU\u306e\u62e1\u5f35<\/strong>\u3092\u7b54\u3048\u3089\u308c\u308b\u3088\u3046\u306b\u3057\u3066\u304a\u304f\u3068\u5b89\u5fc3\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">RSTP &#8211; \u30d7\u30ed\u30dd\u30fc\u30b6\u30eb\u3068\u30a2\u30b0\u30ea\u30fc\u30e1\u30f3\u30c8<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">RSTP\u304c\u9ad8\u901f\u53ce\u675f\u3092\u5b9f\u73fe\u3067\u304d\u308b\u7406\u7531\u306e\u3072\u3068\u3064\u304c\u300cProposal\uff08\u63d0\u6848\uff09\u300d\u3068\u300cAgreement\uff08\u5408\u610f\uff09\u300d\u306b\u3088\u308b\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u3067\u3059\u3002\u5f93\u6765\u306eSTP\u3067\u306f\u3001\u30dd\u30fc\u30c8\u3092\u6709\u52b9\u5316\u3059\u308b\u969b\u306b\u30ea\u30b9\u30cb\u30f3\u30b0\u72b6\u614b\u3084\u30e9\u30fc\u30cb\u30f3\u30b0\u72b6\u614b\u3092\u9806\u756a\u306b\u7d4c\u7531\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u3001\u305d\u306e\u7d50\u679c\u3068\u3057\u3066\u53ce\u675f\u306b\u6700\u592750\u79d2\u304b\u304b\u3063\u3066\u3044\u307e\u3057\u305f\u3002RSTP\u3067\u306f\u3053\u306e\u30d7\u30ed\u30bb\u30b9\u3092\u5927\u5e45\u306b\u7c21\u7565\u5316\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u30b9\u30a4\u30c3\u30c1\u9593\u304c\u63a5\u7d9a\u3055\u308c\u308b\u3068\u3001\u305d\u308c\u305e\u308c\u306e\u30b9\u30a4\u30c3\u30c1\u306f\u300c\u81ea\u5206\u304c\u30eb\u30fc\u30c8\u30d6\u30ea\u30c3\u30b8\u3067\u3042\u308a\u3001\u3053\u306e\u30dd\u30fc\u30c8\u306f\u6307\u5b9a\u30dd\u30fc\u30c8\u3067\u3042\u308b\u300d\u3068\u3044\u3046\u5185\u5bb9\u306eProposal BPDU\u3092\u9001\u4fe1\u3057\u307e\u3059\u3002BPDU\u306b\u306f\u30d6\u30ea\u30c3\u30b8\u30d7\u30e9\u30a4\u30aa\u30ea\u30c6\u30a3\u3084\u30eb\u30fc\u30c8\u30d1\u30b9\u30b3\u30b9\u30c8\u3068\u3044\u3063\u305f\u60c5\u5831\u304c\u542b\u307e\u308c\u3066\u304a\u308a\u3001\u3069\u3061\u3089\u304c\u512a\u5148\u3055\u308c\u308b\u3079\u304d\u304b\u3092\u5224\u65ad\u3059\u308b\u6750\u6599\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3082\u3057\u53d7\u4fe1\u3057\u305fProposal\u306e\u65b9\u304c\u81ea\u5206\u3088\u308a\u5f37\u3051\u308c\u3070\u3001\u76f8\u624b\u306e\u30dd\u30fc\u30c8\u3092\u6307\u5b9a\u30dd\u30fc\u30c8\u3068\u3057\u3066\u8a8d\u3081\u3001\u81ea\u5206\u306e\u30dd\u30fc\u30c8\u3092\u30eb\u30fc\u30c8\u30dd\u30fc\u30c8\u306b\u8a2d\u5b9a\u3057\u307e\u3059\u3002\u305d\u3057\u3066\u6b8b\u308a\u306e\u30dd\u30fc\u30c8\u3092\u4e00\u6642\u7684\u306b\u30c7\u30a3\u30b9\u30ab\u30fc\u30c7\u30a3\u30f3\u30b0\u306b\u3057\u3066\u304b\u3089Agreement BPDU\u3092\u8fd4\u4fe1\u3057\u307e\u3059\u3002\u9006\u306b\u81ea\u5206\u304c\u5f37\u3044\u5834\u5408\u306f\u3001\u76f8\u624b\u304b\u3089\u306eAgreement\u3092\u53d7\u4fe1\u3057\u305f\u6642\u70b9\u3067\u5373\u5ea7\u306b\u30d5\u30a9\u30ef\u30fc\u30c7\u30a3\u30f3\u30b0\u3092\u958b\u59cb\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306b\u3001<strong><span class=\"swl-marker mark_yellow\">\u63d0\u6848\u3068\u5408\u610f\u306b\u3088\u308b\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u3067\u30dd\u30fc\u30c8\u3092\u8fc5\u901f\u306b\u6709\u52b9\u5316<\/span><\/strong>\u3059\u308b\u306e\u304cRSTP\u306e\u7279\u5fb4\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">RSTP &#8211; \u969c\u5bb3\u767a\u751f\u6642\u306e\u52d5\u4f5c<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">RSTP\u306f\u969c\u5bb3\u767a\u751f\u6642\u306e\u6319\u52d5\u3082STP\u3068\u306f\u7570\u306a\u308a\u307e\u3059\u3002\u975e\u30eb\u30fc\u30c8\u30d6\u30ea\u30c3\u30b8\u304c\u6301\u3064\u4ee3\u66ff\u30dd\u30fc\u30c8\uff08AP\uff09\u306f\u3001\u30eb\u30fc\u30c8\u30dd\u30fc\u30c8\u306e\u969c\u5bb3\u3092\u691c\u77e5\u3059\u308b\u3068\u3059\u3050\u306b\u30d5\u30a9\u30ef\u30fc\u30c7\u30a3\u30f3\u30b0\u3078\u5207\u308a\u66ff\u308f\u308a\u307e\u3059\u3002STP\u306e\u3088\u3046\u306b\u30ea\u30b9\u30cb\u30f3\u30b0\u3084\u30e9\u30fc\u30cb\u30f3\u30b0\u72b6\u614b\u3092\u7d4c\u7531\u3059\u308b\u5fc5\u8981\u304c\u306a\u3044\u305f\u3081\u3001\u5207\u308a\u66ff\u3048\u306f\u6570\u79d2\u3067\u5b8c\u4e86\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3055\u3089\u306b\u3001\u30c8\u30dd\u30ed\u30b8\u30fc\u5909\u5316\u3092\u691c\u77e5\u3057\u305f\u30b9\u30a4\u30c3\u30c1\u306fBPDU\u306eTC\uff08Topology Change\uff09\u30d3\u30c3\u30c8\u3092\u30bb\u30c3\u30c8\u3057\u3066\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5168\u4f53\u306b\u901a\u77e5\u3057\u307e\u3059\u3002\u3053\u306e\u60c5\u5831\u306fProposal &amp; Agreement\u306e\u4ed5\u7d44\u307f\u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u62e1\u6563\u3055\u308c\u3001\u5168\u4f53\u306e\u53ce\u675f\u304c\u9ad8\u901f\u306b\u9032\u307f\u307e\u3059\u3002STP\u306e\u3088\u3046\u306b\u30eb\u30fc\u30c8\u30d6\u30ea\u30c3\u30b8\u306b\u5909\u66f4\u901a\u77e5\u3092\u9001\u3063\u3066\u5fdc\u7b54\u3092\u5f85\u3064\u5fc5\u8981\u3082\u306a\u304f\u3001\u5f93\u6765\u306e50\u79d2\u5f85\u6a5f\u304c\u4e0d\u8981\u306b\u306a\u3063\u3066\u3044\u308b\u306e\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">RSTP &#8211; \u30ea\u30f3\u30af\u30bf\u30a4\u30d7<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">RSTP\u3067\u306f\u3001\u63a5\u7d9a\u5f62\u614b\u306b\u3088\u3063\u3066\u30ea\u30f3\u30af\u3092\u6b21\u306e2\u7a2e\u985e\u306b\u5206\u985e\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u30ea\u30f3\u30af\u30bf\u30a4\u30d7<\/th><th>\u8aac\u660e<\/th><\/tr><\/thead><tbody><tr><td><strong>\u30dd\u30a4\u30f3\u30c8\u30c4\u30fc\u30dd\u30a4\u30f3\u30c8\u30ea\u30f3\u30af<\/strong><\/td><td>\u5168\u4e8c\u91cd\u3067\u52d5\u4f5c\u3059\u308b\u30dd\u30fc\u30c8\u3002\u30b9\u30a4\u30c3\u30c1\u9593\u304c1\u5bfe1\u3067\u63a5\u7d9a\u3055\u308c\u3066\u304a\u308a\u3001\u9ad8\u901f\u53ce\u675f\u3092\u5b9f\u73fe\u3067\u304d\u308b\u30ea\u30f3\u30af\u3002Proposal &amp; Agreement\u306e\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u304c\u53ef\u80fd\u3002<\/td><\/tr><tr><td><strong>\u30b7\u30a7\u30a2\u30fc\u30c9\u30ea\u30f3\u30af<\/strong><\/td><td>\u534a\u4e8c\u91cd\u3067\u52d5\u4f5c\u3059\u308b\u30dd\u30fc\u30c8\u3002\u30ea\u30d4\u30fc\u30bf\u30cf\u30d6\u3092\u4ecb\u3059\u308b\u306a\u3069\u3001\u8907\u6570\u306e\u30b9\u30a4\u30c3\u30c1\u304c\u540c\u4e00\u30bb\u30b0\u30e1\u30f3\u30c8\u306b\u5b58\u5728\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u63a5\u7d9a\u3002\u9ad8\u901f\u53ce\u675f\u306f\u884c\u3048\u305a\u3001\u5f93\u6765\u306eSTP\u30bf\u30a4\u30de\u30fc\u306b\u4f9d\u5b58\u3059\u308b\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">RSTP\u306e\u9ad8\u901f\u53ce\u675f\u306e\u6069\u6075\u3092\u53d7\u3051\u308b\u305f\u3081\u306b\u306f\u3001<strong><span class=\"swl-marker mark_yellow\">\u30b9\u30a4\u30c3\u30c1\u9593\u306f\u5fc5\u305a\u5168\u4e8c\u91cd\u30fb\u30dd\u30a4\u30f3\u30c8\u30c4\u30fc\u30dd\u30a4\u30f3\u30c8\u63a5\u7d9a\u306b\u3059\u308b\u3053\u3068<\/span><\/strong>\u304c\u91cd\u8981\u3067\u3059\u3002\u3082\u3057\u30b7\u30a7\u30a2\u30fc\u30c9\u30ea\u30f3\u30af\u306b\u306a\u3063\u3066\u3044\u308b\u5834\u5408\u3001RSTP\u3067\u3082\u5f93\u6765\u306eSTP\u3068\u540c\u3058\u30bf\u30a4\u30de\u30fc\u306b\u983c\u308b\u52d5\u4f5c\u306b\u306a\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"is-style-icon_pen wp-block-paragraph\">\u8a66\u9a13\u5bfe\u7b56\uff1a\u300c\u306a\u305cRSTP\u304c\u9ad8\u901f\u306b\u53ce\u675f\u3067\u304d\u308b\u304b\uff1f\u300d\u3068\u3044\u3046\u554f\u3044\u306b\u5bfe\u3057\u3066\u3001\u300cProposal\/Agreement\u306b\u3088\u308b\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u300d\u3068\u300c\u30dd\u30a4\u30f3\u30c8\u30c4\u30fc\u30dd\u30a4\u30f3\u30c8\u30ea\u30f3\u30af\u3067\u306e\u30cd\u30b4\u30b7\u30a8\u30fc\u30b7\u30e7\u30f3\u300d\u304c\u30ad\u30fc\u30ef\u30fc\u30c9\u306b\u306a\u308b\u3053\u3068\u3092\u899a\u3048\u3066\u304a\u304f\u3068\u3088\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">RSTP\uff08rapid-PVST+\uff09\u306e\u8a2d\u5b9a\uff1a\u30b9\u30d1\u30cb\u30f3\u30b0\u30c4\u30ea\u30fc\u30e2\u30fc\u30c9\u306e\u5909\u66f4<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Catalyst\u30b9\u30a4\u30c3\u30c1\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u3067STP\uff08PVST+\uff09\u30e2\u30fc\u30c9\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u9ad8\u901f\u53ce\u675f\u3092\u5b9f\u73fe\u3059\u308b\u305f\u3081\u306b\u3001RSTP\uff08rapid-PVST+\uff09\u3078\u30e2\u30fc\u30c9\u3092\u5909\u66f4\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u30e2\u30fc\u30c9\u5207\u66ff\u306e\u30b3\u30de\u30f3\u30c9\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>(config)# spanning-tree mode &#91; mst | pvst | rapid-pvst ]<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>pvst<\/strong><br>STP\u30e2\u30fc\u30c9\uff08IEEE 802.1D\uff09\u3002\u6b63\u78ba\u306b\u306fPVST+\u3068\u3057\u3066\u52d5\u4f5c\u3002 <code>(config)# spanning-tree mode pvst<\/code><\/li>\n\n\n\n<li><strong>rapid-pvst<\/strong><br>RSTP\u30e2\u30fc\u30c9\uff08IEEE 802.1W\uff09\u3002\u6b63\u78ba\u306b\u306frapid-PVST+\u3068\u3057\u3066\u52d5\u4f5c\u3002 <code>(config)# spanning-tree mode rapid-pvst<\/code><\/li>\n\n\n\n<li><strong>mst<\/strong><br>MST\u30e2\u30fc\u30c9\uff08IEEE 802.1S\uff09\u3002\u8907\u6570\u306eVLAN\u30921\u3064\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306b\u307e\u3068\u3081\u308b\u30e2\u30fc\u30c9\u3002 <code>(config)# spanning-tree mode mst<\/code><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">RSTP\uff08rapid-PVST+\uff09\u306e\u6709\u52b9\u5316\u3068\u7121\u52b9\u5316<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">RSTP\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u5168VLAN\u306b\u5bfe\u3057\u3066\u6709\u52b9\u5316\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u7279\u5b9a\u306eVLAN\u3067\u306e\u307f\u7121\u52b9\u5316\u3057\u305f\u3044\u5834\u5408\u306f\u4ee5\u4e0b\u306e\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6709\u52b9\u5316 <code>(config)# spanning-tree vlan vlan-id<\/code><\/li>\n\n\n\n<li>\u7121\u52b9\u5316 <code>(config)# no spanning-tree vlan vlan-id<\/code><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\uff1aVLAN10\u3067RSTP\u3092\u7121\u52b9\u5316\u3059\u308b\u5834\u5408<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>(config)# no spanning-tree vlan 10<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">RSTP\uff08rapid-PVST+\uff09\u306e\u30d6\u30ea\u30c3\u30b8\u30d7\u30e9\u30a4\u30aa\u30ea\u30c6\u30a3\u8a2d\u5b9a<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u30d6\u30ea\u30c3\u30b8\u30d7\u30e9\u30a4\u30aa\u30ea\u30c6\u30a3\u306e\u8a2d\u5b9a\u306fSTP\u3068\u540c\u3058\u4ed5\u7d44\u307f\u3067\u3001VLAN\u3054\u3068\u306b\u8a2d\u5b9a\u53ef\u80fd\u3067\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>(config)# spanning-tree vlan vlan-id priority priority<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>priority\u306e\u7bc4\u56f2\uff1a0\uff5e61440\uff084096\u523b\u307f\u3067\u6307\u5b9a\uff09<\/li>\n\n\n\n<li>\u4f8b\uff1aVLAN10\u3067\u30d6\u30ea\u30c3\u30b8\u30d7\u30e9\u30a4\u30aa\u30ea\u30c6\u30a3\u30924096\u306b\u8a2d\u5b9a\u3059\u308b\u5834\u5408 <code>(config)# spanning-tree vlan 10 priority 4096<\/code><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u203b\u30eb\u30fc\u30c8\u30d6\u30ea\u30c3\u30b8\u306b\u3057\u305f\u3044\u5834\u5408\u306fpriority\u3092\u300c0\u300d\u3001\u30bb\u30ab\u30f3\u30c0\u30ea\u30fc\u30eb\u30fc\u30c8\u306b\u3057\u305f\u3044\u5834\u5408\u306f\u300c4096\u300d\u3068\u8a2d\u5b9a\u3059\u308b\u306e\u304c\u4e00\u822c\u7684\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">RSTP\uff08rapid-PVST+\uff09\u306e\u30a8\u30c3\u30b8\u30dd\u30fc\u30c8\u8a2d\u5b9a<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">RSTP\u3067\u306fSTP\u3067\u7528\u610f\u3055\u308c\u3066\u3044\u305fUplinkFast\u3084BackboneFast\u306e\u8a2d\u5b9a\u306f\u4e0d\u8981\u3067\u3059\u3002\u306a\u305c\u306a\u3089RSTP\u81ea\u4f53\u304c\u9ad8\u901f\u53ce\u675f\u3067\u304d\u308b\u304b\u3089\u3067\u3059\u3002\u305f\u3060\u3057\u3001PC\u3084\u30eb\u30fc\u30bf\u306a\u3069BPDU\u3092\u3084\u308a\u53d6\u308a\u3057\u306a\u3044\u6a5f\u5668\u304c\u63a5\u7d9a\u3055\u308c\u308b\u30dd\u30fc\u30c8\u3067\u306f\u3001PortFast\u3092\u8a2d\u5b9a\u3057\u3066\u5373\u5ea7\u306b\u30d5\u30a9\u30ef\u30fc\u30c7\u30a3\u30f3\u30b0\u3078\u79fb\u884c\u3055\u305b\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u7279\u5b9a\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3078\u306ePortFast\u9069\u7528\uff08\u63a8\u5968\uff09<\/strong> <code>(config-if)# spanning-tree portfast<\/code><\/li>\n\n\n\n<li><strong>\u5168\u30a2\u30af\u30bb\u30b9\u30dd\u30fc\u30c8\u306b\u4e00\u62ec\u9069\u7528\uff08\u975e\u63a8\u5968\uff09<\/strong> <code>(config)# spanning-tree portfast default<\/code><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u53c2\u80031\uff1a\u30dd\u30fc\u30c8\u30b3\u30b9\u30c8\u306e\u8a2d\u5b9a\uff08STP\/RSTP\u5171\u901a\uff09<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u30c7\u30d5\u30a9\u30eb\u30c8\u30b3\u30b9\u30c8\u5024\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>10Gbps = 2<\/li>\n\n\n\n<li>1Gbps = 4<\/li>\n\n\n\n<li>100Mbps = 19<\/li>\n\n\n\n<li>10Mbps = 100<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u5909\u66f4\u3059\u308b\u5834\u5408\u306f\u6b21\u306e\u3088\u3046\u306b\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>(config-if)# spanning-tree vlan vlan-id cost cost<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\uff1aGigabitEthernet0\/1\u306e\u30c8\u30e9\u30f3\u30af\u30dd\u30fc\u30c8\u306b\u304a\u3044\u3066\u3001VLAN10\u306e\u30b3\u30b9\u30c8\u30921\u306b\u8a2d\u5b9a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>(config)# interface GigabitEthernet0\/1\n(config-if)# spanning-tree vlan 10 cost 1<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u203bVLAN\u3092\u6307\u5b9a\u305b\u305a\u306b\u8a2d\u5b9a\u3059\u308b\u3068\u3001\u305d\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u4e0a\u306e\u5168VLAN\u306b\u9069\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u53c2\u80032\uff1a\u30dd\u30fc\u30c8\u30d7\u30e9\u30a4\u30aa\u30ea\u30c6\u30a3\u306e\u8a2d\u5b9a\uff08STP\/RSTP\u5171\u901a\uff09<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u30dd\u30fc\u30c8\u30d7\u30e9\u30a4\u30aa\u30ea\u30c6\u30a3\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u306f128\u3067\u300116\u306e\u500d\u6570\u3067\u8a2d\u5b9a\u53ef\u80fd\u3067\u3059\uff08\u7bc4\u56f20\uff5e240\uff09\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>(config-if)# spanning-tree vlan vlan-id port-priority priority<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\uff1aGigabitEthernet0\/1\u306eVLAN10\u306b\u304a\u3044\u3066\u3001\u30dd\u30fc\u30c8\u30d7\u30e9\u30a4\u30aa\u30ea\u30c6\u30a3\u3092144\u306b\u8a2d\u5b9a\u3059\u308b\u5834\u5408<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>(config)# interface GigabitEthernet0\/1\n(config-if)# spanning-tree vlan 10 port-priority 144<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u203bVLAN\u3092\u6307\u5b9a\u3057\u306a\u3051\u308c\u3070\u3001\u305d\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u4e0a\u306e\u5168VLAN\u306b\u8a2d\u5b9a\u304c\u9069\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"is-style-icon_pen wp-block-paragraph\">\u8a66\u9a13\u5bfe\u7b56\uff1a\u300cSTP\u3068RSTP\u306e\u8a2d\u5b9a\u306e\u9055\u3044\u300d\u3088\u308a\u3082\u300c\u30e2\u30fc\u30c9\u306e\u5207\u308a\u66ff\u3048\u65b9\u300d\u300cPortFast\u306e\u5fc5\u8981\u6027\u300d\u300cpriority\u3084cost\u306e\u8abf\u6574\u65b9\u6cd5\u300d\u304c\u554f\u308f\u308c\u3084\u3059\u3044\u306e\u3067\u3001\u30b3\u30de\u30f3\u30c9\u306e\u610f\u5473\u3068\u4f7f\u3044\u6240\u3092\u7406\u89e3\u3057\u3066\u304a\u304f\u3053\u3068\u304c\u5927\u5207\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Catalyst\u30b9\u30a4\u30c3\u30c1\u306b\u304a\u3051\u308b\u30b9\u30d1\u30cb\u30f3\u30b0\u30c4\u30ea\u30fc\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u5024<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Catalyst\u30b9\u30a4\u30c3\u30c1\u3067\u306f\u3001\u30b9\u30d1\u30cb\u30f3\u30b0\u30c4\u30ea\u30fc\u95a2\u9023\u306e\u591a\u304f\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u304c\u3042\u3089\u304b\u3058\u3081\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u3092\u7406\u89e3\u3057\u3066\u304a\u304f\u3068\u3001\u8a66\u9a13\u306e\u8a2d\u554f\u3084\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u6642\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30c7\u30d5\u30a9\u30eb\u30c8\u8a2d\u5b9a\u4e00\u89a7<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u6a5f\u80fd<\/th><th>\u30c7\u30d5\u30a9\u30eb\u30c8\u8a2d\u5b9a<\/th><\/tr><\/thead><tbody><tr><td>\u30b9\u30d1\u30cb\u30f3\u30b0\u30c4\u30ea\u30fc\u30e2\u30fc\u30c9<\/td><td>PVST+\uff08Rapid PVST+ \u3068 MSTP \u306f\u7121\u52b9\uff09<\/td><\/tr><tr><td>\u30b9\u30a4\u30c3\u30c1\u30d7\u30e9\u30a4\u30aa\u30ea\u30c6\u30a3\u5024<\/td><td>32768\uff08VLAN\u5358\u4f4d\u3067\u8a2d\u5b9a\u53ef\u80fd\uff09<\/td><\/tr><tr><td>\u30dd\u30fc\u30c8\u30d7\u30e9\u30a4\u30aa\u30ea\u30c6\u30a3\u5024<\/td><td>128\uff08\u30dd\u30fc\u30c8\u5358\u4f4d\u3067\u8a2d\u5b9a\u53ef\u80fd\uff09<\/td><\/tr><tr><td>\u30dd\u30fc\u30c8\u30b3\u30b9\u30c8\u5024<\/td><td>1000Mbps = 4\u3001100Mbps = 19\u300110Mbps = 100<\/td><\/tr><tr><td>VLAN\u30dd\u30fc\u30c8\u30d7\u30e9\u30a4\u30aa\u30ea\u30c6\u30a3\u5024<\/td><td>128\uff08\u30dd\u30fc\u30c8\u5358\u4f4d\u3067\u8a2d\u5b9a\u53ef\u80fd\uff09<\/td><\/tr><tr><td>VLAN\u30dd\u30fc\u30c8\u30b3\u30b9\u30c8\u5024<\/td><td>1000Mbps = 4\u3001100Mbps = 19\u300110Mbps = 100<\/td><\/tr><tr><td>Hello\u30bf\u30a4\u30e0<\/td><td>2\u79d2<\/td><\/tr><tr><td>Forward Delay\u30bf\u30a4\u30e0<\/td><td>15\u79d2<\/td><\/tr><tr><td>Max Age\u30bf\u30a4\u30e0<\/td><td>20\u79d2<\/td><\/tr><tr><td>\u8ee2\u9001\u4fdd\u7559\u30ab\u30a6\u30f3\u30c8<\/td><td>6BPDU<\/td><\/tr><tr><td>\u30b9\u30d1\u30cb\u30f3\u30b0\u30c4\u30ea\u30fc\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u6570\uff08\u5909\u66f4\u4e0d\u53ef\uff09<\/td><td>128\uff08PVST+\u3001Rapid PVST+\uff09<\/td><\/tr><tr><td>\u6700\u5927\u30db\u30c3\u30d7\u30ab\u30a6\u30f3\u30c8<\/td><td>20\uff08MSTP\u306e\u307f\uff09<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u3053\u3067\u6ce8\u610f\u3057\u3066\u304a\u304d\u305f\u3044\u306e\u306f\u3001<strong><span class=\"swl-marker mark_yellow\">\u30b9\u30a4\u30c3\u30c1\u30d7\u30e9\u30a4\u30aa\u30ea\u30c6\u30a3\u5024\u306f32768\u304c\u6a19\u6e96<\/span><\/strong>\u3067\u3042\u308b\u3068\u3044\u3046\u70b9\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u30eb\u30fc\u30c8\u30d6\u30ea\u30c3\u30b8\u3092\u610f\u56f3\u7684\u306b\u6307\u5b9a\u3059\u308b\u5834\u5408\u306f0\u30844096\u306a\u3069\u660e\u793a\u7684\u306b\u5909\u66f4\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u307e\u305f\u3001STP\u30bf\u30a4\u30de\u30fc\u95a2\u9023\u306fHello\u304c2\u79d2\u3001Forward Delay\u304c15\u79d2\u3001Max Age\u304c20\u79d2\u3068\u3044\u3046\u7d44\u307f\u5408\u308f\u305b\u3067\u3001\u5f93\u6765\u306eSTP\u3067\u53ce\u675f\u306b\u6700\u592750\u79d2\u304b\u304b\u308b\u4ed5\u7d44\u307f\u3068\u95a2\u9023\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Catalyst &#8211; MST\u30e2\u30fc\u30c9\u6642\u306e\u30d1\u30b9\u30b3\u30b9\u30c8\u5024<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">MST\uff08Multiple Spanning Tree Protocol\uff09\u30e2\u30fc\u30c9\u3067\u306f\u3001\u30d1\u30b9\u30b3\u30b9\u30c8\u306e\u8a08\u7b97\u57fa\u6e96\u304c\u5f93\u6765\u306ePVST+\u3084Rapid PVST+\u3068\u306f\u7570\u306a\u308a\u307e\u3059\u3002\u3088\u308a\u9ad8\u3044\u30ea\u30f3\u30af\u901f\u5ea6\u306b\u5bfe\u5fdc\u3067\u304d\u308b\u3088\u3046\u3001\u5024\u304c\u5927\u304d\u304f\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u30ea\u30f3\u30af\u901f\u5ea6<\/th><th>\u30d1\u30b9\u30b3\u30b9\u30c8\u5024<\/th><\/tr><\/thead><tbody><tr><td>10 Mbps<\/td><td>2,000,000<\/td><\/tr><tr><td>100 Mbps<\/td><td>200,000<\/td><\/tr><tr><td>1 Gbps<\/td><td>20,000<\/td><\/tr><tr><td>10 Gbps<\/td><td>2,000<\/td><\/tr><tr><td>100 Gbps<\/td><td>200<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"is-style-icon_pen wp-block-paragraph\">\u8a66\u9a13\u5bfe\u7b56\uff1a\u300c1Gbps\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u30b3\u30b9\u30c8\u306f\u3044\u304f\u3064\u304b\uff1f\u300d\u3068\u3044\u3046\u554f\u984c\u304c\u51fa\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u304c\u3001<strong>PVST+\u3084Rapid PVST+\u3067\u306f\u300c4\u300d\u3001MST\u30e2\u30fc\u30c9\u3067\u306f\u300c20,000\u300d<\/strong>\u3068\u3044\u3046\u9055\u3044\u3092\u3057\u3063\u304b\u308a\u533a\u5225\u3057\u3066\u899a\u3048\u3066\u304a\u304f\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u7279\u306bMST\u306f\u5927\u898f\u6a21\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u7528\u3044\u3089\u308c\u308b\u6280\u8853\u306a\u306e\u3067\u3001\u30d1\u30b9\u30b3\u30b9\u30c8\u5024\u304c\u5927\u5e45\u306b\u7570\u306a\u308b\u3053\u3068\u3092\u8a66\u9a13\u5bfe\u7b56\u3068\u3057\u3066\u610f\u8b58\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u25c6\u307e\u3068\u3081\u30b9\u30e9\u30a4\u30c9<\/h2>\n\n\n\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/ccna-curriculum.tech-village.co.jp\/wp-content\/uploads\/2025\/03\/RSTP.pdf\" type=\"application\/pdf\" style=\"width:100%;height:600px\" aria-label=\"RSTP\u306e\u57cb\u3081\u8fbc\u307f\u3002\"><\/object><a id=\"wp-block-file--media-7b00b328-5739-4b87-9589-06a0b30362cd\" href=\"https:\/\/ccna-curriculum.tech-village.co.jp\/wp-content\/uploads\/2025\/03\/RSTP.pdf\">RSTP<\/a><\/div>\n","protected":false},"excerpt":{"rendered":"<p>RSTP\uff08Rapid Spanning Tree Protocol\uff09\u3068\u306f RSTP\u306f\u5f93\u6765\u306eSTP\u3092\u6539\u826f\u3057\u3001\u9ad8\u901f\u53ce\u675f\u3092\u53ef\u80fd\u306b\u3057\u305f\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3059\u3002STP\u304cIEEE 802.1D\u3068\u3057\u3066\u6a19\u6e96\u5316\u3055\u308c\u3066\u3044\u305f\u306e\u306b\u5bfe\u3057\u3066\u3001RSTP\u306fIE [&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-272","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\/272","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=272"}],"version-history":[{"count":5,"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=\/wp\/v2\/posts\/272\/revisions"}],"predecessor-version":[{"id":655,"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=\/wp\/v2\/posts\/272\/revisions\/655"}],"wp:attachment":[{"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=272"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=272"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=272"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}