{"id":720,"date":"2026-09-20T11:12:46","date_gmt":"2026-09-20T03:12:46","guid":{"rendered":"https:\/\/cookie-qwq.xyz\/?p=720"},"modified":"2026-09-20T13:25:50","modified_gmt":"2026-09-20T05:25:50","slug":"stp%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5","status":"publish","type":"post","link":"https:\/\/blog.cookie-qwq.xyz\/index.php\/2026\/09\/20\/stp%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5\/","title":{"rendered":"STP\u57fa\u672c\u6982\u5ff5"},"content":{"rendered":"\n

1. \u6865ID\uff0c\uff08Bridge ID\uff0cBID\uff09<\/mark><\/strong><\/p>\n\n\n\n

    <\/ol>\n\n\n\n

    \uff081\uff09BID<\/mark><\/strong>\u753116\u4f4d\u7684\u6865\u4f18\u5148\u7ea7\uff08Bridge Priority\uff09\u4e0e\u6865MAC\u5730\u5740<\/mark><\/strong>\u6784\u6210<\/p>\n\n\n\n

    \u4f8b\u5982\uff1a32768.4c1f-cc49-0fbd<\/p>\n\n\n\n

    \u6865\u4f18\u5148\u7ea7\u9ed8\u8ba4\u4e3a32768<\/mark><\/strong>\uff0c.\u540e\u9762\u7684\u90fd\u662f\u6865\u7684MAC\u5730\u5740<\/mark><\/strong><\/p>\n\n\n\n

    \uff082\uff09\u6bcf\u4e00\u53f0\u8fd0\u884cSTP\u7684\u4ea4\u6362\u673a\u90fd\u6709\u4e00\u4e2a\u552f\u4e00\u7684BID<\/p>\n\n\n\n

    \u5982\u4f55\u67e5\u770b\u4ea4\u6362\u673a\u7684BID<\/p>\n\n\n\n

    \u5728\u7528\u6237\u89c6\u56fe\u6216\u8005\u7cfb\u7edf\u89c6\u56fe\u4e0b\u7528<\/p>\n\n\n\n

    <Huawei>\/[Huawei]display stp<\/p>\n\n\n\n

    \"\"<\/div><\/figure>\n\n\n\n

    \uff083\uff09BID\u6865\u4f18\u5148\u7ea7\u5360\u636e\u9ad816bit\uff0c\u5176\u4f59\u7684\u4f4e\u4f4d48bit\u90fd\u662f\u6865MAC\u5730\u5740\u3002<\/p>\n\n\n\n

    \uff084\uff09\u5728STP\u7f51\u7edc\u4e2d\uff0cBID\u6700\u5c0f\u7684\u8bbe\u5907\u4f1a\u88ab\u9009\u4e3e\u4e3a\u6839\u6865<\/p>\n\n\n\n

    \"\"<\/div><\/figure>\n\n\n\n

    \u4f8b\u5982\u5728\u8fd9\u6837\u4e00\u5f20top\u56fe\u4e2d\uff0cS1\u3001S2\u3001S3\u4e2dBID\u6700\u5c0f\u7684\u8bbe\u5907\u4e3aS1\uff0c\u6240\u4ee5S1\u4f1a\u88ab\u9009\u4e3e\u4e3a\u6839\u6865\u3002<\/p>\n\n\n\n

    \u6839\u6865\u7684\u4e24\u4e2a\u63a5\u53e3GE 0\/0\/1\u548c GE 0\/0\/2\u90fd\u4f1a\u88ab\u9009\u4e3e\u4e3a\u6307\u5b9a\u7aef\u53e3\u3002<\/p>\n\n\n\n

    S2\u7684GE 0\/0\/1\u8fde\u63a5\u6839\u6865\uff0c\u6240\u4ee5\u4f1a\u88ab\u9009\u4e3e\u4e3a\u6839\u7aef\u53e3\uff1b<\/p>\n\n\n\n

    \u540c\u7406S3\u7684GE 0\/0\/2\u4e5f\u662f\u6839\u7aef\u53e3\u3002<\/p>\n\n\n\n

    \u53ef\u4ee5\u628a\u6865\u3001\u7f51\u6865\u7406\u89e3\u6210\u4ea4\u6362\u673a<\/p>\n\n\n\n

    2. \u6839\u6865\uff08Root Bridge\uff09<\/mark><\/strong><\/p>\n\n\n\n

      <\/ol>\n\n\n\n

      \uff081\uff09\u6839\u6865\u4f5c\u4e3a\u6574\u4e2aSTP\u751f\u6210\u6811\u7684\u6839\uff0cSTP\u5f00\u59cb\u5de5\u4f5c\u540e\uff0c\u6839\u6865\u662f\u751f\u6210\u6811\u8fdb\u884ctop\u8ba1\u7b97\u7684\u91cd\u8981\u201c\u53c2\u8003\u70b9\u201d\uff0c\u662fSTP\u8ba1\u7b97\u5f97\u51fa\u7684\u65e0\u73aftop\u7684\u6570\u6839\u3002<\/p>\n\n\n\n

      \uff082\uff09\u5728STP\u7f51\u7edc\u4e2d\uff0cBID\u6700\u5c0f\u7684\u8bbe\u5907\u4f1a\u88ab\u9009\u4e3e\u4e3a\u6839\u6865\uff1b<\/mark><\/strong><\/p>\n\n\n\n

      \uff083\uff09BID\u7684\u6bd4\u8f83\uff0c\u9996\u5148\u6bd4\u8f83\u6865\u7684\u4f18\u5148\u7ea7\uff0c\u4f18\u5148\u7ea7\u8d8a\u5c0f\uff0c\u5219\u8d8a\u4f18\u5148\uff1b<\/mark><\/strong><\/p>\n\n\n\n

      \u2460\u3001\u6240\u4ee5\u6700\u5c0f\u4f18\u5148\u7ea7\u7684\u4ea4\u6362\u673a\u4f1a\u6210\u4e3a\u6839\u6865<\/mark><\/strong>\uff1b<\/p>\n\n\n\n

      \u2461\u3001\u5982\u679c\u4f18\u5148\u7ea7\u76f8\u7b49\uff0c\u5c31\u4f1a\u6bd4\u8f83MAC\u5730\u5740\uff0c\u6700\u5c0fMAC\u5730\u5740\u7684\u4ea4\u6362\u673a\u4f1a\u6210\u4e3a\u6839\u6865<\/mark><\/strong>\u3002<\/p>\n\n\n\n

      <\/p>\n\n\n\n

      \uff084\uff09\u6839\u6865\u5728\u6574\u4e2a\u7f51\u7edc\u4e2d\u53ea\u6709\u4e00\u4e2a\uff0c\u6839\u6865\u4f1a\u6839\u636e\u7f51\u7edctop\u7684\u53d8\u5316\u800c\u52a8\u6001\u53d8\u5316\u3002<\/mark><\/strong><\/p>\n\n\n\n

      \uff085\uff09\u7f51\u7edc\u6536\u655b\u540e\uff0c\u6839\u6865\u4f1a\u6309\u7167\u4e00\u5b9a\u7684\u65f6\u95f4\u95f4\u9694\u4ea7\u751f\u5e76\u5411\u5916\u53d1\u9001\u914d\u7f6eBPDU<\/mark><\/strong>\uff0c\u5176\u4ed6\u8bbe\u5907\u53ea\u4f1a\u5bf9\u8be5\u62a5\u6587\u8fdb\u884c\u5904\u7406\uff0c\u8fdb\u884c\u4f20\u8fbetop\u53d8\u5316\u8bb0\u5f55\uff0c\u4ece\u800c\u4fdd\u969ctop\u56fe\u7684\u7a33\u5b9a\u3002<\/p>\n\n\n\n

      \u6bcf\u53f0\u4ea4\u6362\u673a\u4e2d\uff0c\u901a\u8fc7display stp\u547d\u4ee4\u90fd\u53ef\u4ee5\u67e5\u8be2\u5230\u6839\u6865\u7684\u4fe1\u606f\uff1a<\/p>\n\n\n\n

      s1<\/p>\n\n\n\n

      \"\"<\/div><\/figure>\n\n\n\n

      \u4e0d\u5c5e\u4e8e\u6839\u6865\u7684\u4ea4\u6362\u673a\uff0c\u540e\u9762\u8fd8\u4f1a\u8ddf\u4e0a\u5230\u8fbe\u6839\u6865\u7684Cost<\/p>\n\n\n\n

      s2<\/p>\n\n\n\n

      \"\"<\/div><\/figure>\n\n\n\n

      s3<\/p>\n\n\n\n

      \"\"<\/div><\/figure>\n\n\n\n

      <\/p>\n\n\n\n

      3. Cost\u5f00\u9500<\/mark><\/strong><\/p>\n\n\n\n

        <\/ol>\n\n\n\n

        \uff081\uff09\u6bcf\u4e00\u4e2a\u6fc0\u6d3b\u4e86STP\u7684\u63a5\u53e3\u90fd\u7ef4\u62a4\u7740\u4e00\u4e2aSTP\u503c\uff0c\u63a5\u53e3\u7684Cost\u4e3b\u8981\u7528\u4e8e\u6839\u8def\u5f84\u5f00\u9500\uff0c\u4e5f\u5c31\u662f\u5230\u8fbe\u6839\u7684\u5f00\u9500\uff0c\u5373\u5230\u8fbe\u6839\u6865\u3002<\/p>\n\n\n\n

        \uff082\uff09\u63a5\u53e3\u7684\u7f3a\u7701Cost\u4e0e\u901f\u7387\u3001\u5de5\u4f5c\u6a21\u5f0f\u6709\u5173\uff0c\u8fd8\u4e0e\u4ea4\u6362\u673a\u4f7f\u7528\u7684STP Cost\u8ba1\u7b97\u65b9\u6cd5\u6709\u5173\u3002<\/p>\n\n\n\n

        \uff083\uff09\u63a5\u53e3\u5e26\u5bbd\u8d8a\u5927\uff0cCost\u8d8a\u5c0f<\/mark><\/strong>\u3002<\/p>\n\n\n\n

        \uff084\uff09\u53ef\u4ee5\u81ea\u884c\u8c03\u6574Cost\u7684\u5f00\u9500\u3002<\/p>\n\n\n\n

        \uff085\uff09Cost\u8ba1\u7b97\u65b9\u6cd5<\/p>\n\n\n\n

        \u534e\u4e3a\u4ea4\u6362\u673a\u652f\u6301\u591a\u79cdSTP\u7684\u8def\u5f84\u5f00\u9500\u8ba1\u7b97\u6807\u51c6\u3002\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u4f7f\u7528IEEE 802.1t\u6807\u51c6\u3002<\/p>\n\n\n\n

        4. RPC\uff08Root Path Cost\uff09\uff0c\u6839\u8def\u5f84\u5f00\u9500<\/mark><\/strong><\/p>\n\n\n\n

          <\/ol>\n\n\n\n

          \uff081\uff09\u4ece\u4e00\u4e2a\u975e\u6839\u6865\u5230\u8fbe\u6839\u6865\u7684\u8def\u5f84\u53ef\u80fd\u6709\u591a\u6761\uff0c\u6bcf\u4e00\u6761\u8def\u5f84\u90fd\u6709\u4e00\u4e2a\u603b\u7684\u5f00\u9500\u503c\uff0c\u6b64\u5f00\u9500\u503c\u662f\u8be5\u8def\u5f84\u4e0a\u6240\u6709\u63a5\u6536BPDU\u7aef\u53e3\u7684\u7aef\u53e3\u5f00\u9500\u603b\u548c\uff08\u5373BPDU\u7684\u5165\u65b9\u5411\u7aef\u53e3\uff09\uff0c\u79f0\u4e3a\u8def\u5f84\u5f00\u9500\u3002<\/p>\n\n\n\n

          \uff082\uff09\u975e\u6839\u6865\u901a\u8fc7\u5bf9\u6bd4\u591a\u6761\u8def\u5f84\u7684\u8def\u5f84\u5f00\u9500\uff0c\u9009\u51fa\u8fbe\u5230\u6839\u6865\u7684\u6700\u77ed\u8def\u5f84\uff0c\u8fd9\u6761\u6700\u77ed\u8def\u5f84\u7684\u8def\u5f84\u5f00\u9500\u88ab\u79f0\u4e3aRPC<\/mark><\/strong>\uff0c\u5e76\u751f\u6210\u65e0\u73af\u6811\u72b6\u7f51\u7edc\u3002<\/p>\n\n\n\n

          \uff083\uff09\u4e00\u53f0\u8bbe\u5907\u4ece\u67d0\u4e2a\u63a5\u53e3\u5230\u8fbe\u6839\u6865\u7684RPC\u7b49\u4e8e\u4ece\u6839\u6865\u5230\u8bbe\u5907\u6cbf\u9014\u6240\u6709\u5165\u65b9\u5411\u63a5\u53e3\u7684Cost\u7d2f\u52a0\u3002<\/mark><\/strong><\/p>\n\n\n\n

          \"\"<\/div><\/figure>\n\n\n\n

          \uff084\uff09\u6839\u6865\u7684RPC\u4e3a0<\/mark><\/strong><\/p>\n\n\n\n

          5. Port ID\uff0c\u63a5\u53e3ID\uff0c\u7b80\u79f0PID<\/mark><\/strong><\/p>\n\n\n\n

            <\/ol>\n\n\n\n

            \uff081\uff09PID\uff0c\u7531\u7aef\u53e3\u4f18\u5148\u7ea7\u548c\u7aef\u53e3\u53f7\u6784\u6210\u3002<\/p>\n\n\n\n

            \uff082\uff09\u7aef\u53e3\u4f18\u5148\u7ea7\u9ed8\u8ba4\u4e3a128<\/mark><\/strong>\uff0c\u53d6\u503c\u8303\u56f4\u4e3a0-240<\/mark><\/strong>\uff0c\u6b65\u957f\u4e3a16<\/mark><\/strong>\uff0c\u53d6\u503c\u5fc5\u987b\u662f16\u7684\u6574\u6570\u500d<\/mark><\/strong>\u3002<\/p>\n\n\n\n

            \uff083\uff09PID\u4e3b\u8981\u7528\u4e8e\u786e\u5b9a\u7aef\u53e3\u89d2\u8272\u3002<\/p>\n\n\n\n

            \u4f7f\u7528display stp\u53ef\u4ee5\u67e5\u770b\u63a5\u53e3\u7684PID\u4fe1\u606f\uff1a<\/p>\n\n\n\n

            \u9ed8\u8ba4\u4e3a128<\/p>\n\n\n\n

            \"\"<\/div><\/figure>\n\n\n\n

            6. BPDU\uff08Bridge Protocol Data Unit\uff09\uff0c\u7f51\u6865\u534f\u8bae\u6570\u636e\u5355\u5143<\/mark><\/strong><\/p>\n\n\n\n

              <\/ol>\n\n\n\n

              \uff081\uff09STP\u4ea4\u6362\u673a\u4e4b\u95f4\u4f1a\u4ea4\u4e92BPDU\u62a5\u6587\uff0c\u8fd9\u4e9bBPDU\u62a5\u6587\u643a\u5e26\u7740\u4e00\u4e9b\u91cd\u8981\u4fe1\u606f\uff0c\u8fd9\u4e9b\u91cd\u8981\u4fe1\u606f\u662fSTP\u987a\u5229\u8fd0\u884c\u7684\u5173\u952e\u3002<\/p>\n\n\n\n

              \uff082\uff09BPDU\u5206\u4e3a\u4e24\u79cd\uff0c\u4e00\u79cd\u662f\u914d\u7f6eBPDU\uff08Configuration BPDU<\/mark><\/strong>\uff09<\/p>\n\n\n\n

              \u53e6\u5916\u4e00\u79cd\u662fTCN BPDU\uff08Topology Change Notification BDPU\uff09<\/mark><\/strong><\/p>\n\n\n\n

              \uff083\uff09\u914d\u7f6eBPDU<\/mark><\/strong>\u65f6STP\u8fdb\u884c\u62d3\u6251\u8ba1\u7b97\u7684\u5173\u952e\uff0c\u91cc\u9762\u5305\u542b\u4e86\u6865ID\u3001\u8def\u5f84\u5f00\u9500<\/mark><\/strong>\u548c\u7aef\u53e3ID<\/mark><\/strong>\u7b49\u53c2\u6570\u3002<\/p>\n\n\n\n

              \u2460\u3001\u5728\u521d\u59cb\u5316\u8fc7\u7a0b\u4e2d\uff0c\u6bcf\u4e2a\u6865\u90fd\u4e3b\u52a8\u53d1\u9001BDPU\uff0c\u5728\u7f51\u7edctop\u7a33\u5b9a\u540e\uff0c\u53ea\u6709\u6839\u6865<\/mark><\/strong>\u4f1a\u4e3b\u52a8\u53d1\u9001\u914d\u7f6eBPDU<\/mark><\/strong>\uff1b\u5176\u4ed6\u4ea4\u6362\u673a\u5728\u6536\u5230\u4e0a\u6e38\u4f20\u6765\u7684\u914d\u7f6eBPDU<\/mark><\/strong>\u540e\uff0c\u624d\u4f1a\u53d1\u9001\u81ea\u5df1\u7684\u914d\u7f6eBPDU<\/mark><\/strong>\u3002<\/p>\n\n\n\n

              \u2461\u3001TCN BPDU<\/mark><\/strong>\u662f\u6307\u4e0b\u6e38\u4ea4\u6362\u673a\u611f\u77e5\u5230Top\u53d1\u751f\u53d8\u5316\u65f6\u5411\u4e0a\u6e38\u53d1\u9001\u7684top\u53d8\u5316\u611f\u77e5\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

              1. \u6865ID\uff0c\uff08Bridge ID\uff0cBID\uff09 \uff081\uff09BID\u753116\u4f4d\u7684\u6865\u4f18\u5148\u7ea7\uff08Bridge Priority\uff09 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[25,13,11],"class_list":["post-720","post","type-post","status-publish","format-standard","hentry","category-archives","tag-stp","tag-13","tag-11"],"_links":{"self":[{"href":"https:\/\/blog.cookie-qwq.xyz\/index.php\/wp-json\/wp\/v2\/posts\/720","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.cookie-qwq.xyz\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.cookie-qwq.xyz\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.cookie-qwq.xyz\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.cookie-qwq.xyz\/index.php\/wp-json\/wp\/v2\/comments?post=720"}],"version-history":[{"count":2,"href":"https:\/\/blog.cookie-qwq.xyz\/index.php\/wp-json\/wp\/v2\/posts\/720\/revisions"}],"predecessor-version":[{"id":731,"href":"https:\/\/blog.cookie-qwq.xyz\/index.php\/wp-json\/wp\/v2\/posts\/720\/revisions\/731"}],"wp:attachment":[{"href":"https:\/\/blog.cookie-qwq.xyz\/index.php\/wp-json\/wp\/v2\/media?parent=720"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.cookie-qwq.xyz\/index.php\/wp-json\/wp\/v2\/categories?post=720"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.cookie-qwq.xyz\/index.php\/wp-json\/wp\/v2\/tags?post=720"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}