{"id":957,"date":"2026-09-29T13:08:32","date_gmt":"2026-09-29T05:08:32","guid":{"rendered":"https:\/\/cookie-qwq.xyz\/?p=957"},"modified":"2026-09-29T13:09:45","modified_gmt":"2026-09-29T05:09:45","slug":"stp%e6%8e%a5%e5%8f%a3%e7%8a%b6%e6%80%81%e5%92%8c%e6%8b%93%e6%89%91%e5%8f%98%e5%8c%96","status":"publish","type":"post","link":"https:\/\/blog.cookie-qwq.xyz\/index.php\/2026\/09\/29\/stp%e6%8e%a5%e5%8f%a3%e7%8a%b6%e6%80%81%e5%92%8c%e6%8b%93%e6%89%91%e5%8f%98%e5%8c%96\/","title":{"rendered":"STP\u63a5\u53e3\u72b6\u6001\u548c\u62d3\u6251\u53d8\u5316"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">1\u3001STP\u7684\u63a5\u53e3\u72b6\u6001<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uff081\uff09\u7981\u7528\uff08Disable\uff09<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8be5\u63a5\u53e3\u4e0d\u80fd\u6536\u53d1BPDU\uff0c\u4e5f\u4e0d\u80fd\u6536\u53d1\u4e1a\u52a1\u6570\u636e\u5e27\uff0c\u4f8b\u5982\u63a5\u53e3\u4e3adown\u3002<\/p>\n\n\n\n<p 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Age\u8ba1\u65f6\u5668\u8d85\u65f6\u540e\uff0c\u7aef\u53e3\u8fdb\u5165\u5230Listening\u72b6\u6001\uff0c\u5f00\u59cb\u5411S2\u8f6c\u53d1\u4ece\u4e0a\u6e38\u53d1\u6765\u7684\u5305\u542b\u6839\u6865ID\u7684BPDU\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2463\u3001Max Age\u5b9a\u65f6\u5668\u8d85\u5e02\u540e\uff0cS2\u548cS3\u51e0\u4e4e\u540c\u65f6\u6536\u5230\u5bf9\u65b9\u53d1\u6765\u7684BPDU\uff0c\u518d\u8fdb\u884cSTP\u91cd\u65b0\u8ba1\u7b97\uff0cS2\u53d1\u73b0S3\u53d1\u9001\u7684BPDU\u66f4\u4f18\uff0c\u5c31\u4f1a\u653e\u5f03\u5ba3\u79f0\u81ea\u5df1\u662f\u6839\u6865\uff0c\u5e76\u91cd\u65b0\u786e\u5b9a\u7aef\u53e3\u89d2\u8272\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2464\u3001\u7aef\u53e3\u72b6\u6001\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cookie-qwq.xyz\/wp-content\/uploads\/2026\/09\/image-547-1024x541.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"541\" data-original=\"https:\/\/cookie-qwq.xyz\/wp-content\/uploads\/2026\/09\/image-547-1024x541.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-967\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">S2\u7684GE 0\/0\/2\uff0c\u4eceForwarding\u53d8\u4e3aBlocking -&gt; Listening -&gt; Learning -&gt; Forwarding\uff0c\u7aef\u53e3\u89d2\u8272\u4eceDP\u53d8\u4e3aRP<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">S3\u7684GE 0\/0\/1\uff0c\u4eceBlocking -&gt; Listening -&gt; Learning -&gt; 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width=\"1024\" height=\"504\" data-original=\"https:\/\/cookie-qwq.xyz\/wp-content\/uploads\/2026\/09\/image-548-1024x504.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-968\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u2460\u3001\u539f\u56e0\uff1a\u5f53S1\u548cS3\u4e4b\u95f4\u7684\u76f4\u8fde\u94fe\u8def\u53d1\u751f\u4e86\u6545\u969c\uff0c\u7531\u4e8eSTP\u7684\u91cd\u65b0\u8ba1\u7b97\u65f6\u95f4\uff0850s\uff09\u5927\u4e8eMAC\u5730\u5740\u7684\u8001\u5316\u65f6\u95f4\uff0c<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6240\u4ee5\u5728\u7aef\u53e3\u72b6\u6001\u6539\u53d8\u548c\u7aef\u53e3\u89d2\u8272\u91cd\u65b0\u9009\u4e3e\u5b8c\u6210\u540e\uff0c\u6b64\u65f6PC1\u7684\u6570\u636e\u5e27\u8fd8\u662f\u65e0\u6cd5\u53d1\u9001\u5230PC3\uff0c\u56e0\u4e3aMAC\u5730\u5740\u8868\u6ca1\u6709\u6539\u53d8\uff0c\u4ecePC1\u53d1\u9001\u7684\u6570\u636e\u5e27\uff0cS2\u8fd8\u662f\u4f1a\u4eceGE 0\/0\/1\u63a5\u53e3\u53d1\u9001\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2461\u3001TCN BPDU<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6240\u4ee5STP\u4f1a\u5728\u7f51\u7edc\u62d3\u6251\u53d1\u751f\u53d8\u5316\u7684\u65f6\u5019\u4ea7\u751fTCN BPDU<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">TCP BPDU\u7684\u62a5\u6587\u683c\u5f0f\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u534f\u8bae\u6807\u8bc6\u3001\u7248\u672c\u53f7\u548c\u7c7b\u578b<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2462\u3001\u62d3\u6251\u53d8\u5316<\/p>\n\n\n\n<p 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src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"519\" data-original=\"https:\/\/cookie-qwq.xyz\/wp-content\/uploads\/2026\/09\/image-549-1024x519.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-969\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u2465\u3001S2\u63a5\u6536\u5230S3\u53d1\u9001\u7684TCN BPDU\u62a5\u6587\u540e\uff0c\u4f1a\u628aBPDU\u62a5\u6587\u4e2d\u7684Flags\u7684TCA\u4f4d\u8bbe\u7f6e\u4e3a1\uff0c\u7136\u540e\u53d1\u9001\u7ed9S3\uff0c\u544a\u77e5S3\u505c\u6b62\u53d1\u9001TCN BPDU\u62a5\u6587\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cookie-qwq.xyz\/wp-content\/uploads\/2026\/09\/image-551-1024x527.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"527\" data-original=\"https:\/\/cookie-qwq.xyz\/wp-content\/uploads\/2026\/09\/image-551-1024x527.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-971\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p 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