{"id":1385,"date":"2025-10-11T17:43:02","date_gmt":"2025-10-11T08:43:02","guid":{"rendered":"https:\/\/mylifeisbeautiful555.net\/?page_id=1385"},"modified":"2025-10-11T17:43:02","modified_gmt":"2025-10-11T08:43:02","slug":"stp%e3%81%ae%e8%a8%ad%e5%ae%9a%e7%b5%90%e5%b1%80%e5%85%a8%e3%81%a6%e3%81%be%e3%81%a8%e3%82%81%e3%82%8b%e3%81%a8%e7%b7%a8-cisco%e3%81%ae%e3%82%b1%e3%83%bc%e3%82%b9","status":"publish","type":"page","link":"https:\/\/mylifeisbeautiful555.net\/?page_id=1385","title":{"rendered":"STP\u306e\u8a2d\u5b9a(\u7d50\u5c40\u5168\u3066\u307e\u3068\u3081\u308b\u3068\u7de8) (Cisco\u306e\u30b1\u30fc\u30b9)"},"content":{"rendered":"\n<p>\u7d50\u5c40\u3053\u3046\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">STP\u8a2d\u5b9a\u306e\u57fa\u672c\u69cb\u9020\uff08Cisco IOS\uff09<\/h2>\n\n\n\n<p>STP\u95a2\u9023\u8a2d\u5b9a\u306f\u4e3b\u306b3\u3064\u306e\u30ec\u30d9\u30eb\u3067\u884c\u3044\u307e\u3059\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u30ec\u30d9\u30eb<\/th><th>\u8a2d\u5b9a\u5185\u5bb9<\/th><th>\u4f8b<\/th><\/tr><\/thead><tbody><tr><td><strong>\u30b0\u30ed\u30fc\u30d0\u30eb\u30e2\u30fc\u30c9<\/strong><\/td><td>STP\u30e2\u30fc\u30c9\u306e\u9078\u629e\uff08pvst, rapid-pvst, mst\u306a\u3069\uff09<\/td><td>SW>spanning-tree mode pvst<\/td><\/tr><tr><td><strong>VLAN\u5358\u4f4d\u8a2d\u5b9a<\/strong><\/td><td>VLAN\u3054\u3068\u306e\u30eb\u30fc\u30c8\u8a2d\u5b9a\u3001\u30bf\u30a4\u30de\u30fc\u8abf\u6574\u306a\u3069<\/td><td>SW>spanning-tree vlan 10 priority 4096<\/td><\/tr><tr><td><strong>\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u5358\u4f4d\u8a2d\u5b9a<\/strong><\/td><td>portfast, bpduguard, root guard\u306a\u3069<\/td><td>SW>spanning-tree portfast<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">STP\u30e2\u30fc\u30c9\u306e\u9078\u629e<\/h2>\n\n\n\n<p>\u307e\u305a\u3069\u306eSTP\u30e2\u30fc\u30c9\u3092\u4f7f\u3046\u304b\u3092\u9078\u3073\u307e\u3059\u3002<br>Cisco\u3067\u306f\u6b21\u306e4\u7a2e\u985e\u304c\u9078\u629e\u53ef\u80fd\u3067\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Switch(config)# spanning-tree mode ?\n  mst          Multiple spanning tree mode\n  pvst         Per-VLAN spanning tree mode\n  rapid-pvst   Rapid per-VLAN spanning tree mode\n  vlan-bridge  VLAN-bridge spanning tree mode\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u4f8b\uff1aRapid-PVST\uff08\u6700\u3082\u4e00\u822c\u7684\uff09<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>Switch(config)# spanning-tree mode rapid-pvst<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u30eb\u30fc\u30c8\u30d6\u30ea\u30c3\u30b8\u306e\u8a2d\u5b9a\uff08VLAN\u5358\u4f4d\uff09<\/h2>\n\n\n\n<p>STP\u3067\u306f\u3001\u30eb\u30fc\u30c8\u30d6\u30ea\u30c3\u30b8\uff08Root Bridge\uff09\u304c\u30c4\u30ea\u30fc\u306e\u4e2d\u5fc3\u306b\u306a\u308a\u307e\u3059\u3002<br>\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u306f\u3001<strong>Bridge Priority\uff08\u512a\u5148\u5ea6\uff09<\/strong> \u304c\u6700\u3082\u4f4e\u3044\u30b9\u30a4\u30c3\u30c1\u304c\u30eb\u30fc\u30c8\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h5 class=\"wp-block-heading\">\u512a\u5148\u5ea6\u3092\u6307\u5b9a\u3057\u3066\u30eb\u30fc\u30c8\u3092\u56fa\u5b9a<\/h5>\n\n\n\n<pre class=\"wp-block-code\"><code>Switch(config)# spanning-tree vlan 10 priority 4096<\/code><\/pre>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u306f 32768\uff08\u6570\u5024\u304c\u5c0f\u3055\u3044\u307b\u3069\u512a\u5148\u5ea6\u304c\u9ad8\u3044\uff09<\/p>\n<\/blockquote>\n\n\n\n<p>\u307e\u305f\u306f\u3001\u7c21\u6613\u8a2d\u5b9a\u30b3\u30de\u30f3\u30c9\u3067\u81ea\u52d5\u8abf\u6574\u3082\u53ef\u80fd<\/p>\n\n\n\n<h5 class=\"wp-block-heading\">\u30eb\u30fc\u30c8\u30d6\u30ea\u30c3\u30b8\u306b\u8a2d\u5b9a<\/h5>\n\n\n\n<pre class=\"wp-block-code\"><code>Switch(config)# spanning-tree vlan 10 root primary\n<\/code><\/pre>\n\n\n\n<p>\u2192 VLAN10\u306e\u30eb\u30fc\u30c8\u306b\u8a2d\u5b9a\uff08\u81ea\u52d5\u7684\u306b\u4ed6\u30b9\u30a4\u30c3\u30c1\u3088\u308a\u4f4e\u3044priority\u306b\u8abf\u6574\uff09<\/p>\n\n\n\n<h5 class=\"wp-block-heading\">\u4e88\u5099\u30eb\u30fc\u30c8\uff08\u30bb\u30ab\u30f3\u30c0\u30ea\uff09\u306b\u8a2d\u5b9a<\/h5>\n\n\n\n<pre class=\"wp-block-code\"><code>Switch(config)# spanning-tree vlan 10 root secondary\n<\/code><\/pre>\n\n\n\n<p>\u2192 \u30e1\u30a4\u30f3\u304c\u843d\u3061\u305f\u3089\u81ea\u52d5\u7684\u306b\u3053\u306e\u30b9\u30a4\u30c3\u30c1\u304c\u30eb\u30fc\u30c8\u306b\u306a\u308b<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30bf\u30a4\u30de\u30fc\u8abf\u6574\uff08\u4efb\u610f\uff09<\/h2>\n\n\n\n<p>\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u306f STP \u30bf\u30a4\u30de\u30fc\u306f\u4ee5\u4e0b\u3067\u3059\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u30bf\u30a4\u30de\u30fc<\/th><th>\u30c7\u30d5\u30a9\u30eb\u30c8<\/th><th>\u610f\u5473<\/th><\/tr><\/thead><tbody><tr><td>Hello Time<\/td><td>2\u79d2<\/td><td>BPDU\u9001\u4fe1\u9593\u9694<\/td><\/tr><tr><td>Forward Delay<\/td><td>15\u79d2<\/td><td>Listening\/Learning \u5404\u5f85\u6a5f\u6642\u9593<\/td><\/tr><tr><td>Max Age<\/td><td>20\u79d2<\/td><td>BPDU\u6709\u52b9\u671f\u9650<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u8abf\u6574\u4f8b<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Switch(config)# spanning-tree vlan 10 hello-time 1\nSwitch(config)# spanning-tree vlan 10 forward-time 10\nSwitch(config)# spanning-tree vlan 10 max-age 15<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u8a2d\u5b9a\uff08PortFast\u306a\u3069\uff09<\/h2>\n\n\n\n<p>\u30a8\u30f3\u30c9\u30db\u30b9\u30c8\uff08PC\u3001\u30b5\u30fc\u30d0\uff09\u306b\u63a5\u7d9a\u3059\u308b\u30dd\u30fc\u30c8\u3067\u306f\u3001<br>\u8d77\u52d5\u6642\u306eSTP\u5f85\u6a5f\u6642\u9593\uff08\u7d0430\u79d2\uff09\u3092\u30b9\u30ad\u30c3\u30d7\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Switch(config)# interface FastEthernet0\/1\nSwitch(config-if)# spanning-tree portfast\n<\/code><\/pre>\n\n\n\n<p>BPDU\u53d7\u4fe1\u3067err-disable\u3055\u305b\u305f\u3044\u5834\u5408\uff08\u5b89\u5168\u7b56\uff09<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Switch(config-if)# spanning-tree bpduguard enable<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">STP\u4fdd\u8b77\u6a5f\u80fd\uff08\u30aa\u30d7\u30b7\u30e7\u30f3\uff09<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u6a5f\u80fd<\/th><th>\u30b3\u30de\u30f3\u30c9\u4f8b<\/th><th>\u8aac\u660e<\/th><\/tr><\/thead><tbody><tr><td><strong>BPDU Guard<\/strong><\/td><td><code>spanning-tree bpduguard enable<\/code><\/td><td>BPDU\u53d7\u4fe1\u6642\u306b\u30dd\u30fc\u30c8\u3092err-disable\u5316\uff08PortFast\u3068\u4f75\u7528\uff09<\/td><\/tr><tr><td><strong>Root Guard<\/strong><\/td><td><code>spanning-tree guard root<\/code><\/td><td>\u4e0d\u6b63\u306a\u30eb\u30fc\u30c8\u6607\u683c\u3092\u9632\u6b62<\/td><\/tr><tr><td><strong>Loop Guard<\/strong><\/td><td><code>spanning-tree guard loop<\/code><\/td><td>BPDU\u6d88\u5931\u306b\u3088\u308b\u30eb\u30fc\u30d7\u3092\u9632\u6b62<\/td><\/tr><tr><td><strong>UDLD<\/strong><\/td><td><code>udld enable<\/code><\/td><td>\u7247\u65b9\u5411\u30ea\u30f3\u30af\u969c\u5bb3\u3092\u691c\u77e5\uff08\u5149\u30b1\u30fc\u30d6\u30eb\u306a\u3069\uff09<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u8a2d\u5b9a\u4f8b\uff08Rapid-PVST\uff09<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>Switch(config)# spanning-tree mode rapid-pvst\n!\nSwitch(config)# spanning-tree vlan 10 priority 4096\nSwitch(config)# spanning-tree vlan 20 priority 8192\n!\nSwitch(config)# interface range gi0\/1 - 24\nSwitch(config-if-range)# spanning-tree portfast\nSwitch(config-if-range)# spanning-tree bpduguard enable\n<\/code><\/pre>\n\n\n\n<p>&#x27a1; VLAN10\u306e\u30eb\u30fc\u30c8\u3092\u3053\u306e\u30b9\u30a4\u30c3\u30c1\u306b\u3057\u3001<br>VLAN20\u306f\u4ed6\u30b9\u30a4\u30c3\u30c1\u3092\u30eb\u30fc\u30c8\u306b\u3057\u3066\u8ca0\u8377\u5206\u6563\u3002<br>\u5168\u30db\u30b9\u30c8\u30dd\u30fc\u30c8\u306f\u5373\u901a\u4fe1\u53ef\u80fd\uff0bBPDU\u4fdd\u8b77\u3042\u308a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7d50\u5c40\u3053\u3046\u306a\u308a\u307e\u3059\u3002 STP\u8a2d\u5b9a\u306e\u57fa\u672c\u69cb\u9020\uff08Cisco IOS\uff09 STP\u95a2\u9023\u8a2d\u5b9a\u306f\u4e3b\u306b3\u3064\u306e\u30ec\u30d9\u30eb\u3067\u884c\u3044\u307e\u3059\uff1a \u30ec\u30d9\u30eb \u8a2d\u5b9a\u5185\u5bb9 \u4f8b \u30b0\u30ed\u30fc\u30d0\u30eb\u30e2\u30fc\u30c9 STP\u30e2\u30fc\u30c9\u306e\u9078\u629e\uff08pvst, rapid-pvst, mst\u306a\u3069\uff09  [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1385","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/mylifeisbeautiful555.net\/index.php?rest_route=\/wp\/v2\/pages\/1385","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mylifeisbeautiful555.net\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/mylifeisbeautiful555.net\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/mylifeisbeautiful555.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mylifeisbeautiful555.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1385"}],"version-history":[{"count":1,"href":"https:\/\/mylifeisbeautiful555.net\/index.php?rest_route=\/wp\/v2\/pages\/1385\/revisions"}],"predecessor-version":[{"id":1386,"href":"https:\/\/mylifeisbeautiful555.net\/index.php?rest_route=\/wp\/v2\/pages\/1385\/revisions\/1386"}],"wp:attachment":[{"href":"https:\/\/mylifeisbeautiful555.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1385"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}