{"id":3851,"date":"2021-11-25T21:51:34","date_gmt":"2021-11-26T05:51:34","guid":{"rendered":"https:\/\/www.xh86.me\/?p=3851"},"modified":"2021-11-25T22:19:02","modified_gmt":"2021-11-26T06:19:02","slug":"33-%e5%bc%a0%e5%9b%be%e8%af%a6%e8%a7%a3-rstp-%e3%80%81mstp%e3%80%81%e6%9b%bf%e4%bb%a3%e6%8a%80%e6%9c%af","status":"publish","type":"post","link":"https:\/\/www.xh86.me\/?p=3851","title":{"rendered":"33 \u5f20\u56fe\u8be6\u89e3 RSTP \u3001MSTP\u3001\u66ff\u4ee3\u6280\u672f"},"content":{"rendered":"
\n

10 \u79d2\u770b\u5b8c\u6587\u7ae0\u4e3b\u8981\u5185\u5bb9\uff0c\u8bd5\u8bd5\u4f60\u6709\u591a\u5feb\u3002<\/p>\n

<\/div><\/span><\/p>\n

STP \u7684\u5f0a\u7aef<\/span><\/h3>\n

\u4e0a\u6b21\u6709\u5199\u8fc7\u4e00\u7bc7\u300a \u300b\u7684\u6587\u7ae0\uff0c\u91cc\u9762\u6709\u63d0\u5230 STP<\/strong> \u7684\u529f\u80fd\u662f\u6d88\u9664\u73af\u8def<\/em>\u548c\u94fe\u8def\u5907\u4efd<\/em>\uff0c\u540c\u65f6\u4e5f\u53d1\u73b0 STP \u7684\u4e00\u4e9b\u95ee\u9898\uff1a<\/p>\n

    \n
  • \n

    \u7f51\u7edc\u6536\u655b\u901f\u5ea6\u6162<\/strong>\uff1aBPDU \u7684 Max Age \u503c\u662f 20<\/code><\/span> \u79d2\uff0c\u63a5\u53e3\u4ece\u4fa6\u542c\u5230\u5b66\u4e60\u72b6\u6001\u548c\u4ece\u5b66\u4e60\u5230\u8f6c\u53d1\u72b6\u6001\u5206\u522b\u6709\u4e00\u4e2a 15<\/code><\/span> \u79d2\u7684\u8f6c\u53d1\u5ef6\u8fdf\u65f6\u95f4\uff0c\u56e0\u6b64\u4e00\u4e2a\u63a5\u53e3\u4ece\u963b\u585e\u5230\u8f6c\u53d1\u72b6\u6001\u9700\u8981 30 ~ 50<\/code><\/span> \u79d2\u7684\u65f6\u95f4\uff0c\u8fd9\u6bb5\u65f6\u95f4\u5185\u63a5\u53e3\u65e0\u6cd5\u6b63\u5e38\u4f7f\u7528\u3002<\/p>\n<\/li>\n<\/ul>\n

    <\/div><\/span><\/p>\n
      \n
    • \n

      \u63a5\u53e3\u72b6\u6001\u4e0d\u5408\u7406<\/strong>\uff1aSTP \u63a5\u53e3\u7684\u7981\u7528\u3001\u963b\u585e\u3001\u4fa6\u542c\u72b6\u6001\u7c7b\u4f3c\uff0c\u529f\u80fd\u9ad8\u5ea6\u91cd\u5408\u3002<\/p>\n<\/li>\n<\/ul>\n

      <\/div><\/span><\/p>\n
        \n
      • \n

        \u62d3\u6251\u53d8\u5316\u4f9d\u8d56\u8ba1\u65f6\u5668<\/strong>\uff1a\u6839\u4ea4\u6362\u673a\u53d1\u9001\u914d\u7f6e BPDU \u7684 Hello Time \u662f 2<\/code><\/span> \u79d2\uff0c\u975e\u6839\u4ea4\u6362\u673a\u5373\u4f7f\u6ca1\u6536\u5230 BPDU \uff0c\u4e5f\u8981\u5728 Max Age \u7684 20<\/code><\/span> \u79d2\u540e\uff0c\u624d\u4f1a\u91cd\u65b0\u8ba1\u7b97 STP \u3002<\/p>\n<\/li>\n<\/ul>\n

        <\/div><\/span><\/p>\n
        \n

        \u4ec0\u4e48\u662f\u6536\u655b\uff1f<\/p>\n<\/blockquote>\n

        \u6536\u655b<\/strong>\u662f\u6307\u7f51\u7edc\u8fdb\u5165\u7a33\u5b9a\u72b6\u6001\u3002\u6bd4\u5982\u5728 STP \u4e2d\u6240\u6709\u63a5\u53e3\u83b7\u5f97\u63a5\u53e3\u89d2\u8272\uff0c\u8fdb\u5165\u8f6c\u53d1\u6216\u963b\u585e\u72b6\u6001\u3002\u6536\u655b\u65f6\u95f4<\/strong>\u662f\u6307\u7f51\u7edc\u4ece\u53d1\u751f\u53d8\u5316\u5230\u8fdb\u5165\u7a33\u5b9a\u72b6\u6001\u7684\u65f6\u95f4\u3002<\/p>\n

        RSTP<\/span><\/h3>\n

        \u9274\u4e8e STP \u7684\u4f18\u7f3a\u70b9\u90fd\u5f88\u660e\u663e\uff0c\u5f03\u4e4b\u53c8\u89c9\u5f97\u53ef\u60dc\uff0c\u8fd8\u662f\u62a2\u6551\u4e00\u4e0b\u5427\u3002\u4e8e\u662f\u5347\u7ea7\u7248\u7684 RSTP \u51fa\u73b0\u4e86\uff0c\u5bf9 STP \u8fdb\u884c\u4e86\u5927\u91cf\u7684\u6539\u8fdb\u3002<\/p>\n

        RSTP<\/strong> \u589e\u52a0\u65b0\u7684\u63a5\u53e3\u89d2\u8272\uff0c\u5176\u4e2d\u7684\u66ff\u4ee3\u63a5\u53e3<\/em>\u53ef\u5728\u4ea4\u6362\u673a\u7684\u6839\u63a5\u53e3\u5931\u6548\u65f6\uff0c\u7acb\u5373\u6210\u4e3a\u65b0\u7684\u6839\u63a5\u53e3\uff0c\u83b7\u53d6\u65b0\u7684\u8def\u5f84\u5230\u8fbe\u6839\u6865\u3002RSTP \u4f7f\u7528 P\/A \u673a\u5236<\/em>\uff0c\u8ba9\u6307\u5b9a\u63a5\u53e3\u80fd\u591f\u5feb\u901f\u8fdb\u5165\u8f6c\u53d1\u72b6\u6001\uff0c\u800c\u4e0d\u7528\u50cf STP \u90a3\u6837\u7ecf\u8fc7 Forward Delay \u65f6\u95f4\u3002RSTP \u8fd8\u65b0\u589e\u8fb9\u7f18\u63a5\u53e3<\/em>\u7684\u6982\u5ff5\uff0c\u8ba9\u4ea4\u6362\u673a\u63a5\u5165\u7ec8\u7aef\u8bbe\u5907\u7684\u63a5\u53e3\u7acb\u5373\u8fdb\u5165\u8f6c\u53d1\u72b6\u6001\u3002<\/p>\n

        RSTP \u63a5\u53e3\u89d2\u8272<\/h4>\n

        RSTP \u5728 STP \u7684\u57fa\u7840\u4e0a\u589e\u52a0\u4e86\u63a5\u53e3\u89d2\u8272\uff0c4 \u79cd\u63a5\u53e3\u89d2\u8272\u5206\u522b\u662f\uff1a\u6839\u63a5\u53e3<\/strong>\uff08 RP \uff09\u3001\u6307\u5b9a\u63a5\u53e3<\/strong>\uff08 DP \uff09\u3001\u66ff\u4ee3\u63a5\u53e3<\/strong>\uff08 Alternate Port \uff0cAP \uff09\u548c\u5907\u4efd\u63a5\u53e3<\/strong>\uff08 Backup Port \uff0cBP \uff09\u3002\u6839\u63a5\u53e3\u548c\u6307\u5b9a\u63a5\u53e3\u4e0e STP \u4e2d\u5b9a\u4e49\u76f8\u540c\uff0c\u5bf9\u4e8e STP \u7684\u975e\u6839\u975e\u6307\u5b9a\u63a5\u53e3\uff0cRSTP \u5c06\u5176\u5206\u4e3a\u4e24\u79cd\uff0c\u4e00\u79cd\u662f\u66ff\u4ee3\u63a5\u53e3\uff0c\u53e6\u4e00\u79cd\u662f\u5907\u4efd\u63a5\u53e3\u3002<\/p>\n

        <\/div><\/span><\/p>\n
        1\u3001\u66ff\u4ee3\u63a5\u53e3\uff08 Alternate Port \uff0cAP \uff09<\/h5>\n

        \u66ff\u4ee3\u63a5\u53e3\u5c31\u662f\u6839\u63a5\u53e3\u7684\u5907\u4efd<\/em><\/strong>\uff0c\u7531\u4e8e\u6536\u5230\u5176\u5b83\u4ea4\u6362\u673a\u53d1\u9001\u7684\u66f4\u4f18 BPDU \u800c\u88ab\u963b\u585e\u7684\u63a5\u53e3\u3002\u5982\u679c\u6839\u63a5\u53e3\u53d1\u751f\u6545\u969c\uff0c\u90a3\u4e48\u66ff\u4ee3\u63a5\u53e3\u4f1a\u6210\u4e3a\u65b0\u7684\u6839\u63a5\u53e3\u3002\u63a5\u53e3\u5207\u6362\u8fc7\u7a0b\u4e2d\uff0c\u65e0\u9700\u5ef6\u65f6\uff0c\u65e0\u9700 BPDU \u4ea4\u4e92\uff0c\u7acb\u9a6c\u8fdb\u5165\u5230\u8f6c\u53d1\u72b6\u6001\u3002<\/p>\n

        \u4e00\u53f0\u4ea4\u6362\u673a\u5982\u679c\u662f\u975e\u6839\u6865\uff0c\u90a3\u4e48\u5b83\u6709\u4e14\u53ea\u6709\u4e00\u4e2a\u6839\u63a5\u53e3\uff0c\u4f46\u662f\u8fd9\u53f0\u4ea4\u6362\u673a\u53ef\u4ee5\u6ca1\u6709\u66ff\u4ee3\u63a5\u53e3\uff0c\u4e5f\u53ef\u4ee5\u6709\uff0c\u5f53\u6709\u66ff\u4ee3\u63a5\u53e3\u65f6\uff0c\u53ef\u4ee5\u6709\u4e00\u4e2a\u6216\u591a\u4e2a\u3002\u5f53\u4ea4\u6362\u673a\u7684\u6839\u63a5\u53e3\u53d1\u751f\u6545\u969c\u65f6\uff0c\u6700\u4f18\u7684\u66ff\u4ee3\u63a5\u53e3\u5c06\u6210\u4e3a\u65b0\u7684\u6839\u63a5\u53e3\u3002<\/p>\n

        <\/div><\/span><\/p>\n

        \u5982\u4e0a\u56fe\u6240\u793a\uff0cSW1 \u662f\u7f51\u7edc\u4e2d\u7684\u6839\u6865\uff0cSW3 \u6709\u4e24\u4e2a\u63a5\u53e3\u63a5\u5165\u5230\u7f51\u7edc\u4e2d\uff0c\u7531\u4e8e G0\/11 \u6bd4 G0\/12 \u5230\u8fbe\u6839\u6865\u7684 RPC \u66f4\u5c0f\uff0cG0\/11 \u6210\u4e3a SW3 \u7684\u6839\u63a5\u53e3\u3002G0\/12 \u6536\u5230 SW2 \u53d1\u9001\u7684 BPDU \uff0c\u7ecf\u8fc7 SW3 \u8ba1\u7b97\u540e\u51b3\u5b9a\u963b\u585e\uff0c\u6210\u4e3a SW3 \u7684\u66ff\u4ee3\u63a5\u53e3\u3002<\/p>\n

        2\u3001\u5907\u4efd\u63a5\u53e3\uff08 Backup Port \uff0cBP \uff09<\/h5>\n

        \u5907\u4efd\u63a5\u53e3\u4e5f\u662f\u6307\u5b9a\u63a5\u53e3\u7684\u5907\u4efd<\/em><\/strong>\uff0c\u5907\u4efd\u63a5\u53e3\u662f\u4ea4\u6362\u673a\u6536\u5230\u4e86\u81ea\u5df1\u53d1\u9001\u7684 BPDU \u800c\u88ab\u963b\u585e\u7684\u63a5\u53e3\u3002\u5982\u679c\u4e00\u53f0\u4ea4\u6362\u673a\u7684\u591a\u4e2a\u63a5\u53e3\u5728\u540c\u4e00\u4e2a\u7269\u7406\u7f51\u6bb5\u5185\uff0c\u5176\u4e2d\u4e00\u4e2a\u9009\u4e3e\u4e3a\u6307\u5b9a\u63a5\u53e3\uff0c\u5176\u5b83\u63a5\u53e3\u9009\u4e3e\u4e3a\u5907\u4efd\u63a5\u53e3\u4e14\u5904\u4e8e\u4e22\u5f03\u72b6\u6001\uff0c\u5907\u4efd\u63a5\u53e3\u4f5c\u4e3a\u8fd9\u4e2a\u7f51\u6bb5\u5230\u8fbe\u6839\u6865\u7684\u5197\u4f59\u63a5\u53e3\u3002\u5982\u679c\u4ea4\u6362\u673a\u7684\u6307\u5b9a\u63a5\u53e3\u53d1\u751f\u6545\u969c\uff0c\u6700\u4f18\u7684\u5907\u4efd\u63a5\u53e3\u6210\u4e3a\u65b0\u7684\u6307\u5b9a\u63a5\u53e3\uff0c\u4e3a\u6839\u4ea4\u6362\u673a\u4e0e\u8fd9\u6761\u94fe\u8def\u63d0\u4f9b\u53e6\u4e00\u6761\u8f6c\u53d1\u901a\u9053\uff0c\u5b9e\u73b0\u4e0e\u8fd9\u4e2a\u7f51\u6bb5\u7684\u6570\u636e\u4ea4\u4e92\u3002<\/p>\n

        \u5907\u4efd\u63a5\u53e3\u901a\u5e38\u5728\u8fd9\u4e24\u79cd\u60c5\u51b5\u4e0b\u51fa\u73b0\uff0c\u4e00\u79cd\u662f\u4ea4\u6362\u673a\u7684\u591a\u4e2a\u63a5\u53e3\u8fde\u63a5\u5230\u4e00\u53f0\u96c6\u7ebf\u5668\uff08 Hub \uff09\u4e0a\uff0c\u4f46\u662f\u96c6\u7ebf\u5668\u548c\u5171\u4eab\u7f51\u7edc\u51e0\u4e4e\u7edd\u8ff9\u3002\u53e6\u4e00\u79cd\u60c5\u51b5\u662f\u540c\u4e00\u53f0\u4ea4\u6362\u673a\u7684\u4e24\u4e2a\u63a5\u53e3\u901a\u8fc7\u4e00\u6761\u7f51\u7ebf\u8fde\u63a5\u8d77\u6765\uff0c\u8fd9\u79cd\u901a\u5e38\u662f\u4eba\u4e3a\u7684\u8bef\u64cd\u4f5c\u3002\u56e0\u6b64\u5907\u4efd\u63a5\u53e3\u6bd4\u8f83\u5c11\u89c1\u3002<\/p>\n

        <\/div><\/span><\/p>\n

        \u5982\u4e0a\u56fe\u6240\u793a\uff0cSW1 \u662f\u7f51\u7edc\u4e2d\u7684\u6839\u6865\uff0cSW2 \u7684 G0\/11 \u548c G0\/12 \u63a5\u53e3\u5f62\u6210\u81ea\u73af\uff0cRSTP \u80fd\u591f\u68c0\u6d4b\u5230\u8fd9\u4e2a\u73af\u8def\uff0c\u5e76\u5728\u8fd9\u4e24\u4e2a\u63a5\u53e3\u4e2d\u9009\u62e9\u4e00\u4e2a\u8fdb\u884c\u963b\u585e\u3002\u7531\u4e8e G0\/11 \u63a5\u53e3\u7684\u63a5\u53e3 ID \u66f4\u5c0f\uff0c\u6210\u4e3a SW2 \u7684\u6307\u5b9a\u63a5\u53e3\uff0c\u800c G0\/12 \u63a5\u53e3\u6210\u4e3a\u5907\u4efd\u63a5\u53e3\uff0c\u5907\u4efd\u63a5\u53e3\u88ab\u963b\u585e\u3002<\/p>\n

        <\/div><\/span><\/p>\n

        \u5982\u4e0a\u56fe\u6240\u793a\uff0cSW2 \u7684\u4e24\u4e2a\u63a5\u53e3\u8fde\u63a5\u5728\u540c\u4e00\u53f0\u96c6\u7ebf\u5668\uff08 Hub \uff09\u4e0a\uff0c\u96c6\u7ebf\u5668\u6536\u5230\u6570\u636e\u540e\u4f1a\u62f7\u8d1d\u5230\u5176\u5b83\u6240\u6709\u63a5\u53e3\uff0c\u800c\u4e14\u96c6\u7ebf\u5668\u4e0d\u652f\u6301 STP\/RSTP \uff0c\u56e0\u6b64 SW2 \u4ece G0\/11 \u63a5\u53e3\u53d1\u51fa\u7684 BPDU \u4f1a\u88ab\u96c6\u7ebf\u5668\u53d1\u9001\u5230 SW2 \u7684 G0\/12 \u63a5\u53e3\uff0c\u53cd\u4e4b\u4ea6\u7136\u3002\u5f53 SW2 \u7684\u6307\u5b9a\u63a5\u53e3 G0\/11 \u51fa\u73b0\u6545\u969c\u65f6\uff0c\u5907\u4efd\u63a5\u53e3 G0\/12 \u5c06\u63a5\u66ff\u5b83\u7684\u5de5\u4f5c\uff0c\u8d1f\u8d23\u4e0e\u76f8\u5e94\u7684\u7f51\u6bb5\u5b9e\u73b0\u6570\u636e\u4ea4\u4e92\u3002<\/p>\n

        RSTP \u63a5\u53e3\u72b6\u6001<\/h4>\n

        STP \u6709 5 \u79cd\u63a5\u53e3\u72b6\u6001\uff0c\u5206\u522b\u662f\u7981\u7528\u3001\u963b\u585e\u3001\u4fa6\u542c\u3001\u5b66\u4e60\u548c\u8f6c\u53d1\uff0c\u800c RSTP \u5bf9\u63a5\u53e3\u72b6\u6001\u8fdb\u884c\u4e86\u7b80\u5316\uff0c\u628a\u7981\u7528\u3001\u963b\u585e\u3001\u4fa6\u542c\u72b6\u6001\u5408\u5e76\u4e3a\u4e22\u5f03\u72b6\u6001\uff08 Discarding \uff09\u3002\u56e0\u4e3a\u8fd9\u4e09\u7c7b\u72b6\u6001\u7684\u529f\u80fd\u533a\u522b\u4e0d\u5927\uff0c\u63a5\u53e3\u90fd\u4e0d\u5b66\u4e60 MAC \u5730\u5740\uff0c\u4e5f\u4e0d\u8f6c\u53d1\u6570\u636e\uff0c\u8fd9\u4e5f\u662f\u4e22\u5f03\u72b6\u6001\u63a5\u53e3\u7684\u5904\u7406\u65b9\u5f0f\u3002\u90a3\u4e48 RSTP \u5c31\u662f 3 \u79cd\u72b6\u6001\uff0c\u5373\u4e22\u5f03\u72b6\u6001<\/strong>\uff08 Discarding \uff09\u3001\u5b66\u4e60\u72b6\u6001<\/strong>\uff08 Learning \uff09\u548c\u8f6c\u53d1\u72b6\u6001<\/strong>\uff08 Forwarding \uff09\u3002\u5b66\u4e60\u548c\u8f6c\u53d1\u72b6\u6001\u4fdd\u6301\u4e0d\u53d8\uff0c\u548c STP \u4e2d\u7684\u5b9a\u4e49\u76f8\u540c\u3002<\/p>\n

        <\/div><\/span><\/p>\n

        \u8fb9\u7f18\u63a5\u53e3<\/h4>\n

        \u5982\u679c\u4ea4\u6362\u673a\u7684\u63a5\u53e3\u8fde\u63a5\u7684\u662f\u7ec8\u7aef\u8bbe\u5907\uff0c\u6bd4\u5982 PC \u3001\u670d\u52a1\u5668\u3001\u6253\u5370\u673a\u7b49\uff0c\u800c\u4e0d\u662f\u5176\u5b83\u4ea4\u6362\u673a\u7684\u63a5\u53e3\uff0c\u90a3\u4e48\u8fd9\u4e9b\u63a5\u53e3\u4e0d\u592a\u53ef\u80fd\u9020\u6210\u73af\u8def\u3002\u6211\u4eec\u5c31\u53ef\u4ee5\u5c06\u4ea4\u6362\u673a\u7684\u63a5\u53e3\u914d\u7f6e\u4e3a\u8fb9\u7f18\u63a5\u53e3<\/strong>\uff08 Edge Port \uff09\uff0c\u8fb9\u7f18\u63a5\u53e3\u9ed8\u8ba4\u4e0d\u53c2\u52a0\u751f\u6210\u6811\u8ba1\u7b97\u3002\u5f53\u8fb9\u7f18\u63a5\u53e3\u88ab\u5f00\u542f\u540e\uff0c\u7acb\u5373\u5207\u6362\u5230\u8f6c\u53d1\u72b6\u6001\u5e76\u5f00\u59cb\u6536\u53d1\u6570\u636e\u6d41\u91cf\uff0c\u800c\u4e0d\u7528\u7ecf\u5386\u8f6c\u53d1\u5ef6\u8fdf\u65f6\u95f4\uff0c\u63d0\u5347\u7f51\u7edc\u6548\u7387\u3002\u8fb9\u7f18\u63a5\u53e3\u7684\u5f00\u542f\u548c\u5173\u95ed\u90fd\u4e0d\u4f1a\u89e6\u53d1 RSTP \u62d3\u6251\u53d8\u66f4\u3002<\/p>\n

        <\/div><\/span><\/p>\n

        P\/A \u673a\u5236<\/h4>\n

        \u5728 STP \u4e2d\uff0c\u4ea4\u6362\u673a\u7684\u4e00\u4e2a\u63a5\u53e3\u6210\u4e3a\u6307\u5b9a\u63a5\u53e3\u540e\uff0c\u8fd8\u9700\u8981\u7ecf\u8fc7\u4fa6\u542c\u548c\u5b66\u4e60\u72b6\u6001\uff0c\u5373\u7ecf\u8fc7 30 \u79d2\u65f6\u95f4\uff0c\u624d\u80fd\u8fdb\u5165\u8f6c\u53d1\u72b6\u6001\u3002\u800c RSTP \u5f15\u5165 P\/A \u673a\u5236<\/strong>\uff08 Proposal\/Agreement \uff0c\u63e1\u624b\/\u8d5e\u540c\uff09\uff0c\u8ba9\u6307\u5b9a\u63a5\u53e3\u4e0e\u5bf9\u7aef\u63a5\u53e3\u8fdb\u884c\u63e1\u624b\uff0c\u5e76\u9010\u7ea7\u8fdb\u884c\u4f20\u9012\u907f\u514d\u73af\u8def\uff0c\u8fd9\u4e2a\u8fc7\u7a0b\u4e0d\u4f7f\u7528\u8ba1\u65f6\u5668\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u5b8c\u6210\u63e1\u624b\u7684 RSTP \u6307\u5b9a\u63a5\u53e3\u4ece\u4e22\u5f03\u72b6\u6001\u76f4\u63a5\u8fdb\u5165\u5230\u8f6c\u53d1\u72b6\u6001\uff0c\u800c\u4e0d\u9700\u8981\u7ecf\u8fc7\u5176\u5b83\u72b6\u6001\uff0c\u52a0\u901f\u751f\u6210\u6811\u7684\u6536\u655b\u3002<\/p>\n

        <\/div><\/span><\/p>\n

        Proposal \u6d88\u606f\u548c Agreement \u6d88\u606f\u90fd\u662f BPDU \u3002\u4ea4\u6362\u673a\u901a\u8fc7 BPDU \u4e2d\u7684 Flag\uff08\u6807\u8bb0\uff09\u5b57\u6bb5\u6765\u6807\u8bc6 BPDU \u7684\u4e0d\u540c\u7c7b\u578b\uff0c\u5305\u62ec Proposal BPDU \u548c Agreement BPDU \u3002<\/p>\n

        <\/div><\/span><\/p>\n

        \u5982\u4e0a\u56fe\u6240\u793a\uff0c\u5728 SW1 \u548c SW2 \u65b0\u589e\u4e00\u6761\u94fe\u8def\uff0c\u7531\u4e8e SW1 \u7684\u6865\u4f18\u5148\u7ea7\u6700\u9ad8\uff0c\u6210\u4e3a\u8fd9\u4e2a\u7f51\u7edc\u4e2d\u7684\u6839\u6865\uff0cSW1 \u7684 G0\/1 \u63a5\u53e3\u6210\u4e3a\u6307\u5b9a\u63a5\u53e3\uff0cSW2 \u7684 G0\/2 \u63a5\u53e3\u6210\u4e3a\u6839\u63a5\u53e3\u3002\u5982\u679c\u662f\u8fd0\u884c STP \uff0c\u90a3\u4e48\u6307\u5b9a\u63a5\u53e3\u548c\u6839\u63a5\u53e3\u5fc5\u987b\u7ecf\u5386\u4fa6\u542c\u548c\u5b66\u4e60\u72b6\u6001\u624d\u80fd\u8fdb\u5165\u8f6c\u53d1\u72b6\u6001\u3002<\/p>\n

        \u5982\u679c\u7f51\u7edc\u4e2d\u8fd0\u884c\u7684\u662f RSTP \uff0c\u5f53 SW1 \u4e0e SW2 \u4e4b\u95f4\u65b0\u589e\u4e00\u6761\u94fe\u8def\u540e\u3002<\/p>\n

          \n
        1. \n

          SW1 \u548c SW2 \u9a6c\u4e0a\u5728\u5404\u81ea\u7684\u63a5\u53e3\u4e0a\u53d1\u9001 BPDU \uff0c\u5f00\u59cb\u7684\u65f6\u5019\u53cc\u65b9\u90fd\u8ba4\u4e3a\u81ea\u5df1\u662f\u6839\u6865\u3002<\/p>\n<\/li>\n<\/ol>\n

          <\/div><\/span><\/p>\n
            \n
          1. \n

            \u7ecf\u8fc7 BPDU \u4ea4\u4e92\u540e\uff0cSW2 \u8ba4\u4e3a SW1 \u624d\u662f\u6839\u6865\u3002\u8fd9\u65f6 SW1 \u7684 G0\/1 \u63a5\u53e3\u6210\u4e3a\u6307\u5b9a\u63a5\u53e3\uff0cSW2 \u7684 G0\/2 \u63a5\u53e3\u5219\u6210\u4e3a\u6839\u63a5\u53e3\uff0c\u5e76\u9a6c\u4e0a\u505c\u6b62\u53d1\u9001 BPDU \u3002\u8fd9\u4e24\u4e2a\u63a5\u53e3\u90fd\u5904\u4e8e\u4e22\u5f03\u72b6\u6001\u3002<\/p>\n<\/li>\n<\/ol>\n

            <\/div><\/span><\/p>\n
              \n
            1. \n

              \u63a5\u4e0b\u6765 P\/A \u8fc7\u7a0b\u4f1a\u53d1\u751f\u5728 SW1 \u548c SW2 \u4e4b\u95f4\u3002SW1 \u4ece G0\/1 \u63a5\u53e3\u53d1\u9001 Proposal \u6d88\u606f\uff0c\u5e0c\u671b\u81ea\u5df1\u80fd\u591f\u7acb\u523b\u8fdb\u5165\u8f6c\u53d1\u72b6\u6001\u3002<\/p>\n<\/li>\n<\/ol>\n

              <\/div><\/span><\/p>\n
                \n
              1. \n

                \u800c SW2 \u5728\u6536\u5230 Proposal \u6d88\u606f\u540e\uff0c\u9996\u5148\u4f1a\u5224\u65ad\u63a5\u6536 Proposal \u6d88\u606f\u7684\u63a5\u53e3\u662f\u4e0d\u662f\u6839\u63a5\u53e3\u3002\u5728\u786e\u8ba4\u81ea\u5df1\u6536\u5230 Proposal \u7684\u63a5\u53e3\u662f\u6839\u63a5\u53e3\u540e\uff0cSW2 \u4e3a\u4e86\u907f\u514d\u51fa\u73b0\u73af\u8def\uff0c\u963b\u585e\u81ea\u5df1\u6240\u6709\u975e\u8fb9\u7f18\u7684\u6307\u5b9a\u63a5\u53e3\uff0c\u4f7f\u8fd9\u4e9b\u63a5\u53e3\u90fd\u8fdb\u5165\u5230\u4e22\u5f03\u72b6\u6001\uff0c\u8fd9\u4e2a\u64cd\u4f5c\u79f0\u4e3a P\/A \u540c\u6b65\u673a\u5236\u3002\u8fb9\u7f18\u63a5\u53e3\u4e0d\u53c2\u4e0e\u8fd9\u4e2a\u8fc7\u7a0b\u3002<\/p>\n<\/li>\n<\/ol>\n

                <\/div><\/span><\/p>\n
                  \n
                1. \n

                  \u5728 SW2 \u6240\u6709\u63a5\u53e3\u5b8c\u6210\u540c\u6b65\u540e\uff0cSW2 \u6e05\u695a\u7684\u77e5\u9053\u81ea\u5df1\u7684\u63a5\u53e3\u4e0d\u5b58\u5728\u73af\u8def\uff0c\u9a6c\u4e0a\u5c06\u6839\u63a5\u53e3 G0\/2 \u5207\u6362\u5230\u8f6c\u53d1\u72b6\u6001\uff0c\u5e76\u4ece\u6839\u63a5\u53e3\u5411 SW1 \u53d1\u9001 Agreement \u6d88\u606f\u3002<\/p>\n<\/li>\n<\/ol>\n

                  <\/div><\/span><\/p>\n
                    \n
                  1. \n

                    SW1 \u5728 G0\/1 \u63a5\u53e3\u4e0a\u6536\u5230 Agreement \u6d88\u606f\u540e\uff0c\u7acb\u523b\u5c06 G0\/1 \u63a5\u53e3\u5207\u6362\u6210\u8f6c\u53d1\u72b6\u6001\uff0c\u8fd9\u65f6 PC1 \u548c PC2 \u5c31\u53ef\u4ee5\u901a\u4fe1\u4e86\u3002<\/p>\n<\/li>\n<\/ol>\n

                    <\/div><\/span><\/p>\n

                    \u6574\u4e2a P\/A \u8fc7\u7a0b\u5f88\u5feb\u5c31\u5b8c\u6210\u4e86\uff0c\u5728\u65b0\u589e\u94fe\u8def\u540e\u7684\u6781\u77ed\u65f6\u95f4\u5185\uff0cPC2 \u5c31\u53ef\u4ee5\u548c PC1 \u901a\u4fe1\u3002\u53e6\u5916\uff0c\u7531\u4e8e SW2 \u7684\u6307\u5b9a\u63a5\u53e3 G0\/4 \u8fd8\u662f\u5904\u4e8e\u4e22\u5f03\u72b6\u6001\uff0c\u90a3\u4e48\u8fd9\u4e2a\u63a5\u53e3\u4e5f\u4f1a\u5411\u4e0b\u6e38\u4ea4\u6362\u673a\u53d1\u8d77\u4e00\u4e2a P\/A \u8fc7\u7a0b\u3002<\/p>\n

                    \u4fdd\u62a4\u529f\u80fd<\/h4>\n

                    \u4ea4\u6362\u673a\u6709\u591a\u79cd\u4fdd\u62a4\u529f\u80fd\uff0c\u7528\u4e8e\u63d0\u5347\u751f\u6210\u6811\u534f\u8bae\u7684\u7a33\u5b9a\u6027\u3002<\/p>\n

                    1\u3001BPDU \u4fdd\u62a4\uff08 BPDU Protection \uff09<\/h5>\n

                    \u5f53\u8fb9\u7f18\u63a5\u53e3\u6536\u5230 BPDU \u540e\uff0c\u4f1a\u9a6c\u4e0a\u53d8\u6210\u4e00\u4e2a\u666e\u901a\u7684 RSTP \u63a5\u53e3\uff0c\u53ef\u80fd\u5f15\u53d1\u7f51\u7edc\u4e2d RSTP \u91cd\u65b0\u8ba1\u7b97\uff0c\u4ece\u800c\u5bf9\u7f51\u7edc\u9020\u6210\u5f71\u54cd\u3002\u901a\u5e38\u8fb9\u7f18\u63a5\u53e3\u8fde\u63a5\u7ec8\u7aef\u8bbe\u5907\uff0c\u5e94\u8be5\u4e0d\u4f1a\u6536\u5230 BPDU \uff0c\u4f46\u662f\u5982\u679c\u8bef\u63a5\u4e86\u4ea4\u6362\u673a\uff0c\u90a3\u4e48\u8fd9\u4e2a\u8fb9\u7f18\u63a5\u53e3\u5c31\u6709\u53ef\u80fd\u6536\u5230 BPDU \uff0c\u4f1a\u5f15\u5165\u73af\u8def\u9690\u60a3\u3002\u8fd8\u6709\u4e00\u79cd\u60c5\u51b5\u662f\u6076\u610f\u7528\u6237\u8fde\u63a5\u8fb9\u7f18\u63a5\u53e3\u540e\uff0c\u53d1\u8d77 BPDU \u653b\u51fb\uff0c\u4e5f\u4f1a\u5bf9\u7f51\u7edc\u9020\u6210\u5f88\u5927\u5f71\u54cd\u3002<\/p>\n

                    \u901a\u8fc7\u5728\u4ea4\u6362\u673a\u4e0a\u5f00\u542f BPDU \u4fdd\u62a4\u529f\u80fd<\/strong>\u5c31\u53ef\u4ee5\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u3002\u5f53\u4ea4\u6362\u673a\u5f00\u542f\u8fd9\u4e2a\u529f\u80fd\u540e\uff0c\u5982\u679c\u8fb9\u7f18\u63a5\u53e3\u6536\u5230 BPDU \uff0c\u90a3\u4e48\u4ea4\u6362\u673a\u9a6c\u4e0a\u628a\u63a5\u53e3\u5173\u95ed\uff0c\u7f6e\u4e3a Error-Down \uff0c\u540c\u65f6\u89e6\u53d1\u544a\u8b66\u3002<\/p>\n

                    <\/div><\/span><\/p>\n

                    \u5982\u679c\u53d7\u5230\u4fdd\u62a4\u7684\u8fb9\u7f18\u63a5\u53e3\u56e0\u4e3a\u6536\u5230 BPDU \u800c\u88ab\u5173\u95ed\uff0c\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u662f\u4e0d\u4f1a\u81ea\u52a8\u6062\u590d\u7684\uff0c\u9700\u8981\u5728\u4ea4\u6362\u673a\u4e0a\u624b\u52a8\u6267\u884c\u547d\u4ee4\u5f00\u542f\u6765\u6062\u590d\u63a5\u53e3\u3002\u9664\u6b64\u4e4b\u5916\uff0c\u8fd8\u53ef\u4ee5\u624b\u52a8\u8bbe\u7f6e\u63a5\u53e3\u81ea\u52a8\u6062\u590d\u529f\u80fd\uff0c\u5728\u6307\u5b9a\u65f6\u95f4\u540e\u81ea\u52a8\u6062\u590d\u3002<\/p>\n

                    2\u3001\u6839\u4fdd\u62a4\uff08 Root Protection \uff09<\/h5>\n

                    RSTP \u6839\u636e\u6839\u6865\u8ba1\u7b97\u51fa\u65e0\u73af\u62d3\u6251\uff0c\u6839\u6865\u662f\u5f88\u91cd\u8981\u7684\u3002\u5728\u5df2\u7ecf\u5b8c\u6210\u6536\u655b\u7684 RSTP \u7f51\u7edc\u4e2d\uff0c\u5982\u679c\u6839\u6865\u53d1\u751f\u53d8\u5316\uff0c\u90a3\u4e48 RSTP \u5c31\u4f1a\u91cd\u65b0\u8ba1\u7b97\uff0c\u91cd\u65b0\u8ba1\u7b97\u65f6\u7f51\u7edc\u5c06\u4e0d\u53ef\u7528\u3002\u901a\u5e38\u6211\u4eec\u4f1a\u9009\u62e9\u7f51\u7edc\u4e2d\u6027\u80fd\u6700\u597d\u548c\u4f4d\u7f6e\u6700\u91cd\u8981\u7684\u8bbe\u5907\u4f5c\u4e3a\u6839\u6865\uff0c\u5c06\u5176\u4f18\u5148\u7ea7\u8bbe\u7f6e\u4e3a\u6700\u5c0f\u503c 0 \uff0c\u4f46\u662f\u8fd9\u4e2a\u63aa\u65bd\u5e76\u4e0d\u80fd\u4fdd\u8bc1\u8fd9\u4e2a\u8bbe\u5907\u6c38\u8fdc\u662f\u7f51\u7edc\u4e2d\u7684\u6839\u6865\uff0c\u6bd5\u7adf\u6839\u6865\u7684\u89d2\u8272\u662f\u53ef\u4ee5\u62a2\u5360\u7684\u3002\u5982\u679c\u7f51\u7edc\u4e2d\u65b0\u63a5\u5165\u7684\u4ea4\u6362\u673a\u4f18\u5148\u7ea7\u88ab\u914d\u7f6e\u4e3a 0 \uff0c\u6070\u597d MAC \u5730\u5740\u6bd4\u6839\u6865\u66f4\u5c0f\uff0c\u90a3\u4e48\u65b0\u4ea4\u6362\u673a\u5c06\u62a2\u5360\u6210\u4e3a\u65b0\u7684\u6839\u6865\uff0c\u8fd8\u4f1a\u9020\u6210\u7f51\u7edc\u7684 RSTP \u91cd\u65b0\u8ba1\u7b97\uff0c\u4ece\u800c\u5bf9\u7f51\u7edc\u9020\u6210\u5f71\u54cd\u3002<\/p>\n

                    <\/div><\/span><\/p>\n

                    \u5728\u4ea4\u6362\u673a\u7684\u76f8\u5173\u63a5\u53e3\u90e8\u7f72\u6839\u4fdd\u62a4\u529f\u80fd<\/strong>\uff0c\u5c31\u53ef\u4ee5\u89c4\u907f\u8fd9\u4e2a\u95ee\u9898\u3002\u5f53\u6839\u6865\u7684\u6307\u5b9a\u63a5\u53e3\u5f00\u542f\u6839\u4fdd\u62a4\u529f\u80fd\u540e\uff0c\u8fd9\u4e2a\u6307\u5b9a\u63a5\u53e3\u5982\u679c\u6536\u5230\u66f4\u4f18\u7684 BPDU \uff0c\u5c31\u4f1a\u8fc7\u6ee4\u8fd9\u4e2a BPDU \uff0c\u5e76\u5c06\u63a5\u53e3\u5207\u6362\u81f3\u4e22\u5f03\u72b6\u6001\uff0c\u8fd9\u6837\u6839\u6865\u7684\u5730\u4f4d\u5c31\u53ef\u4ee5\u4fdd\u6301\u3002\u5982\u679c\u8fd9\u4e2a\u6307\u5b9a\u63a5\u53e3\u4e0d\u518d\u6536\u5230\u66f4\u4f18\u7684 BPDU\uff0c\u90a3\u4e48\u4e24\u500d\u7684\u8f6c\u53d1\u5ef6\u8fdf\u65f6\u95f4\u540e\uff0c\u63a5\u53e3\u81ea\u52a8\u6062\u590d\u5230\u8f6c\u53d1\u72b6\u6001\u3002<\/p>\n

                    3\u3001\u73af\u8def\u4fdd\u62a4\uff08 Loop Protection \uff09<\/h5>\n

                    \u5f53\u7f51\u7edc\u4e2d\u51fa\u73b0\u7ebf\u8def\u5355\u5411\u6545\u969c\u6216\u8005\u7f51\u7edc\u62e5\u585e\u65f6\uff0c\u4ea4\u6362\u673a\u7684\u6839\u63a5\u53e3\u548c\u4e22\u5f03\u72b6\u6001\u7684\u66ff\u4ee3\u63a5\u53e3\u5c06\u65e0\u6cd5\u6b63\u5e38\u63a5\u6536 BPDU \uff0c\u5c31\u4f1a\u5bfc\u81f4\u4ea4\u6362\u673a\u91cd\u65b0\u8fdb\u884c RSTP \u91cd\u65b0\u8ba1\u7b97\uff0c\u63a5\u53e3\u7684\u89d2\u8272\u548c\u72b6\u6001\u4f1a\u53d1\u751f\u53d8\u5316\uff0c\u53ef\u80fd\u4f1a\u5728\u7f51\u7edc\u4e2d\u5f15\u5165\u73af\u8def\u3002<\/p>\n

                    <\/div><\/span><\/p>\n

                    \u5982\u4e0a\u56fe\u6240\u793a\uff0cSW1 \u662f\u6839\u6865\uff0cSW3 \u7684 G0\/11 \u662f\u6839\u63a5\u53e3\uff0cG0\/12 \u662f\u66ff\u4ee3\u63a5\u53e3\u5904\u4e8e\u4e22\u5f03\u72b6\u6001\u3002SW3 \u7684 G0\/12 \u63a5\u53e3\u867d\u7136\u5904\u4e8e\u4e22\u5f03\u72b6\u6001\uff0c\u4f46\u662f\u4f1a\u6301\u7eed\u4fa6\u542c BPDU \u3002\u5f53\u7f51\u7edc\u6b63\u5e38\u65f6\uff0cSW3 \u4f1a\u5728 G0\/12 \u63a5\u53e3\u4e0a\u5468\u671f\u6027\u7684\u6536\u5230 BPDU \u3002\u5982\u679c SW2 \u548c SW3 \u7684\u94fe\u8def\u51fa\u73b0\u5355\u5411\u6545\u969c\uff0c\u4ece SW2 \u5230 SW3 \u4e0d\u901a\uff0c\u4ece SW3 \u5230 SW2 \u6b63\u5e38\u3002\u90a3\u4e48 SW3 \u7684 G0\/12 \u63a5\u53e3\u65e0\u6cd5\u6536\u5230 SW2 \u53d1\u9001\u7684 BPDU \uff0c\u5bfc\u81f4 SW3 \u8ba4\u4e3a G0\/12 \u63a5\u53e3\u7684\u4e0a\u6e38\u8bbe\u5907\u6545\u969c\u3002\u8fc7\u4e86 Max Age \u65f6\u95f4\u540e\uff0cSW3 \u7684 G0\/12 \u63a5\u53e3\u4f1a\u6210\u4e3a\u6307\u5b9a\u63a5\u53e3\uff0c\u5e76\u5207\u6362\u5230\u8f6c\u53d1\u72b6\u6001\uff0c\u7136\u540e\u5f00\u59cb\u53d1\u9001\u6d41\u91cf\u3002\u4f46\u662f SW2 \u5e76\u672a\u53d1\u751f\u6545\u969c\uff0c\u56e0\u6b64\u4e00\u65e6 SW3 \u7684 G0\/12 \u63a5\u53e3\u5207\u6362\u5230\u8f6c\u53d1\u72b6\u6001\uff0c\u7f51\u7edc\u4e2d\u4fbf\u51fa\u73b0\u4e86\u73af\u8def\u3002<\/p>\n

                    \u4f7f\u7528\u73af\u8def\u4fdd\u62a4\u529f\u80fd<\/strong>\u53ef\u4ee5\u89c4\u907f\u8fd9\u4e2a\u95ee\u9898\uff1a<\/p>\n

                      \n
                    • \n

                      \u5728\u6839\u63a5\u53e3<\/strong>\u4e0a\u5f00\u542f\u73af\u8def\u4fdd\u62a4\u529f\u80fd\u540e\uff0c\u5982\u679c\u6839\u63a5\u53e3\u957f\u65f6\u95f4\u6ca1\u6709\u6536\u5230 BPDU \uff0c\u4ea4\u6362\u673a\u4f1a\u91cd\u65b0\u9009\u4e3e\u6839\u63a5\u53e3\uff0c\u539f\u6765\u7684\u6839\u63a5\u53e3\u8c03\u6574\u4e3a\u6307\u5b9a\u63a5\u53e3\uff0c\u4e14\u63a5\u53e3\u72b6\u6001\u5207\u6362\u6210\u4e22\u5f03\u72b6\u6001\uff0c\u4ece\u800c\u907f\u514d\u51fa\u73b0\u73af\u8def\u3002<\/p>\n<\/li>\n

                    • \n

                      \u5728\u66ff\u4ee3\u63a5\u53e3<\/strong>\u4e0a\u5f00\u542f\u73af\u8def\u4fdd\u62a4\u529f\u80fd\u540e\uff0c\u5982\u679c\u66ff\u4ee3\u63a5\u53e3\u957f\u65f6\u95f4\u6ca1\u6709\u6536\u5230 BPDU \uff0c\u4ea4\u6362\u673a\u4f1a\u628a\u66ff\u4ee3\u63a5\u53e3\u8c03\u6574\u4e3a\u6307\u5b9a\u63a5\u53e3\uff0c\u4e14\u63a5\u53e3\u72b6\u6001\u4fdd\u6301\u5728\u4e22\u5f03\u72b6\u6001\uff0c\u4ece\u800c\u907f\u514d\u51fa\u73b0\u73af\u8def\u3002<\/p>\n<\/li>\n<\/ul>\n

                      4\u3001\u62d3\u6251\u53d8\u66f4\u4fdd\u62a4\uff08 TC Protection \uff09<\/h5>\n

                      \u4e00\u4e2a\u7a33\u5b9a\u7684\u7f51\u7edc\u662f\u4e0d\u4f1a\u9891\u7e41\u51fa\u73b0\u62d3\u6251\u53d8\u66f4\u7684\uff0c\u4e00\u65e6\u7f51\u7edc\u62d3\u6251\u51fa\u73b0\u53d8\u66f4\uff0cTC BPDU\uff08 TC \u7f6e\u4f4d\u7684 BPDU \uff09\u4f1a\u6cdb\u6d2a\u5230\u5168\u7f51\uff0c\u800c TC BPDU \u4f1a\u8ba9\u4ea4\u6362\u673a\u6267\u884c MAC \u5730\u5740\u8868\u5220\u9664\u7684\u64cd\u4f5c\u3002\u5982\u679c\u7f51\u7edc\u73af\u5883\u5f88\u4e0d\u7a33\u5b9a\uff0c\u5bfc\u81f4 TC BPDU \u9891\u7e41\u7684\u6cdb\u6d2a\uff0c\u6216\u8005\u662f\u7f51\u7edc\u4e2d\u5b58\u5728\u6076\u610f\u7528\u6237\uff0c\u53d1\u9001\u5927\u91cf\u7684 TC BPDU \u5bf9\u7f51\u7edc\u8fdb\u884c\u653b\u51fb\uff0c\u90a3\u4e48\u4f1a\u6781\u5927\u6d88\u8017\u4ea4\u6362\u673a\u7684\u6027\u80fd\u3002<\/p>\n

                      \u4ea4\u6362\u673a\u5f00\u542f\u62d3\u6251\u53d8\u66f4\u4fdd\u62a4\u529f\u80fd<\/strong>\u540e\uff0c\u9ed8\u8ba4\u5c06\u5728 2 \u79d2\u5185\u53ea\u8fdb\u884c\u4e00\u6b21\u7684 TC BPDU \u5904\u7406\uff0c\u5982\u679c\u5728 2 \u79d2\u5185\u6536\u5230\u4e86 2 \u4e2a\u53ca\u4ee5\u4e0a\u7684 TC BPDU \uff0c\u90a3\u4e48\u4ea4\u6362\u673a\u53ea\u4f1a\u5904\u7406\u4e00\u6b21\uff0c\u5bf9\u4e8e\u8d85\u51fa\u7684\u90e8\u5206\uff0c\u5fc5\u987b\u7b49\u5f85 2 \u79d2\u540e\u624d\u8fdb\u884c\u5904\u7406\u3002<\/p>\n

                      BPDU<\/h4>\n

                      RSTP \u7684\u914d\u7f6e BPDU<\/strong> \u79f0\u4e3a RST BPDU\uff08 Rapid Spanning Tree BPDU \uff09\uff0c\u5b83\u7684\u683c\u5f0f\u548c STP \u7684\u914d\u7f6e BPDU \u5dee\u4e0d\u591a\uff0c\u53ea\u6709\u4e2a\u522b\u5b57\u6bb5\u505a\u4e86\u4fee\u6539\u3002RST BPDU \u7684 \u201c \u534f\u8bae\u7248\u672c ID \u201d \u5b57\u6bb5\u503c\u662f 0x02 \uff0c\u201c BPDU \u7c7b\u578b \u201d\u5b57\u6bb5\u503c\u662f 0x02 \u3002\u4e3b\u8981\u53d8\u5316\u662f\u5728 \u201c \u6807\u5fd7 \u201d \u5b57\u6bb5\uff0c\u8fd9\u4e2a\u5b57\u6bb5\u4e00\u5171 8 bit \uff0cSTP \u53ea\u4f7f\u7528\u4e86\u6700\u9ad8\u6bd4\u7279\u4f4d\u548c\u6700\u4f4e\u6bd4\u7279\u4f4d\uff0c\u800c RSTP \u4f7f\u7528\u4e86\u5269\u4f59\u7684 6 \u4e2a\u6bd4\u7279\u4f4d\uff0c\u5e76\u5bf9\u8fd9\u4e9b\u6bd4\u7279\u4f4d\u5206\u522b\u8fdb\u884c\u4e86\u5b9a\u4e49\u3002<\/p>\n

                      <\/div><\/span><\/p>\n

                      RST BPDU \u7684 Aggrement<\/code><\/span>\uff08\u540c\u610f\uff09\u548c Proposal<\/code><\/span>\uff08\u63d0\u8bae\uff09\u6bd4\u7279\u4f4d\u7528\u4e8e P\/A\uff08 Proposal\/Aggrement \uff09\u673a\u5236\u3002Port Role<\/code><\/span>\uff08\u63a5\u53e3\u89d2\u8272\uff09\u6bd4\u7279\u4f4d\u662f 2 bit \uff0c\u7528\u4e8e\u6807\u8bc6 RST BPDU \u53d1\u9001\u63a5\u53e3\u7684\u63a5\u53e3\u89d2\u8272\uff0c01 \u8868\u793a\u6839\u63a5\u53e3\uff0c10 \u8868\u793a\u66ff\u4ee3\u63a5\u53e3\uff0c11 \u8868\u793a\u6307\u5b9a\u63a5\u53e3\uff0c\u800c 00 \u4fdd\u7559\u4f7f\u7528\u3002\u6700\u540e\u7684 Forwarding<\/code><\/span>\uff08\u8f6c\u53d1\uff09\u548c Learning<\/code><\/span>\uff08\u5b66\u4e60\uff09\u6bd4\u7279\u4f4d\u8868\u793a RST BPDU \u53d1\u9001\u63a5\u53e3\u7684\u63a5\u53e3\u72b6\u6001\u3002<\/p>\n

                      RSTP \u4e0e STP \u4e0d\u540c\uff0c\u5728\u7f51\u7edc\u6536\u655b\u540e\uff0c\u65e0\u8bba\u662f\u6839\u6865\u8fd8\u662f\u975e\u6839\u6865\uff0c\u90fd\u4f1a\u5468\u671f\u6027\u7684\u53d1\u9001\u914d\u7f6e BPDU\uff0c\u5bf9\u4e8e\u975e\u6839\u6865\uff0c\u4e0d\u9700\u8981\u5728\u6839\u63a5\u53e3\u6536\u5230 BPDU \u4e4b\u540e\u800c\u4ea7\u751f\u81ea\u5df1\u7684\u914d\u7f6e BPDU \uff0c\u800c\u662f\u81ea\u53d1\u7684\u3001\u5468\u671f\u6027\u53d1\u9001 BPDU \u3002<\/p>\n

                      MSTP<\/span><\/h3>\n

                      \u867d\u7136 RSTP \u5bf9 STP \u8fdb\u884c\u4e86\u6539\u8fdb\uff0c\u4f46\u662f\u8fd8\u6709\u4e00\u4e2a\u7f3a\u9677\uff0c\u90a3\u5c31\u662f\u6240\u6709 VLAN \u5171\u7528\u4e00\u68f5\u751f\u6210\u6811<\/em>\u3002\u8fd9\u6837\u5c31\u65e0\u6cd5\u5b9e\u73b0\u8d1f\u8f7d\u5206\u62c5\uff0c\u5bfc\u81f4\u7ebf\u8def\u5e26\u6765\u5229\u7528\u7387\u4f4e\u3001\u8bbe\u5907\u8d44\u6e90\u5229\u7528\u7387\u4f4e\u3002<\/p>\n

                      <\/div><\/span><\/p>\n

                      \u5982\u679c\u6709\u4e00\u79cd\u751f\u6210\u6811\u534f\u8bae\uff0c\u57fa\u4e8e VLAN \u8fdb\u884c\u751f\u6210\u6811\u7684\u8ba1\u7b97<\/em>\uff0c\u90a3\u4e48\u8fd9\u79cd\u6280\u672f\u6709\u54ea\u4e9b\u4f18\u7f3a\u70b9\uff1f\u4f18\u70b9\u5f88\u660e\u663e\uff0c\u4ea4\u6362\u673a\u4e3a\u6bcf\u4e00\u4e2a VLAN \u5355\u72ec\u8ba1\u7b97\u4e00\u68f5\u751f\u6210\u6811\uff0c\u53ef\u4ee5\u5b9e\u73b0\u6d41\u91cf\u7684\u8d1f\u8f7d\u5206\u62c5\u3002\u4f46\u662f\u4e5f\u6709\u4e00\u4e2a\u7f3a\u9677\uff0c\u5982\u679c\u7f51\u7edc\u4e2d\u7684 VLAN \u6570\u91cf\u5f88\u591a\uff0c\u90a3\u4e48\u6240\u6709\u4ea4\u6362\u673a\u90fd\u8981\u4e3a\u6bcf\u4e00\u4e2a VLAN \u8ba1\u7b97\u4e00\u68f5\u751f\u6210\u6811\uff0c\u90a3\u4e48\u8bbe\u5907\u7684\u8d44\u6e90\u6d88\u8017\u5de8\u5927\uff0c\u751a\u81f3\u4f1a\u5f71\u54cd\u5230\u6b63\u5e38\u6d41\u91cf\u7684\u5904\u7406\u3002<\/p>\n

                      <\/div><\/span><\/p>\n

                      \u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0cMSTP<\/strong>\uff08 Multiple Instances Spanning Tree Protocol \uff09\u51fa\u73b0\u4e86\uff0c\u517c\u5bb9 STP \u548c RSTP \u3002\u751f\u6210\u6811\u4e0d\u662f\u57fa\u4e8e VLAN \u8fd0\u884c\u7684\uff0c\u800c\u662f\u57fa\u4e8e Instance<\/code><\/span>\uff08\u5b9e\u4f8b\uff09\u8fd0\u884c\u7684\u3002Instance \u662f\u4e00\u4e2a\u6216\u591a\u4e2a VLAN \u7684\u96c6\u5408\u3002<\/p>\n

                      \u6211\u4eec\u53ef\u4ee5\u5c06\u4e00\u4e2a\u6216\u591a\u4e2a VLAN \u6620\u5c04\u5230\u4e00\u4e2a Instance \uff0c\u7136\u540e MSTP \u57fa\u4e8e Instance \u8ba1\u7b97\u751f\u6210\u6811\u3002\u57fa\u4e8e Instance \u7684\u751f\u6210\u6811\u79f0\u4e3a MSTI<\/strong>\uff08 Multiple Spanning Tree Instance \uff0c\u591a\u751f\u6210\u6811\u5b9e\u4f8b\uff09\uff0cMSTP \u4e3a\u6bcf\u4e00\u4e2a Instance \u7ef4\u62a4\u72ec\u7acb\u7684 MSTI \u3002\u6620\u5c04\u5230\u540c\u4e00\u4e2a Instance \u7684 VLAN \u5171\u4eab\u4e00\u68f5\u751f\u6210\u6811\u3002\u53ef\u6839\u636e\u5b9e\u9645\u9700\u6c42\uff0c\u5728\u4ea4\u6362\u673a\u4e0a\u521b\u5efa\u591a\u4e2a Instance \uff0c\u7136\u540e\u5c06\u6307\u5b9a\u7684 VLAN \u6620\u5c04\u5230\u76f8\u5e94\u7684 Instance \u3002\u4e00\u4e2a Instance \u53ef\u4ee5\u5305\u542b\u591a\u4e2a VLAN \uff0c\u4f46\u662f\u4e00\u4e2a VLAN \u53ea\u80fd\u88ab\u6620\u5c04\u5230\u4e00\u4e2a Instance \u3002<\/p>\n

                      \u5728\u521b\u5efa Instance \u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u5bf9 MSTI \u8fdb\u884c\u4e3b\u6839\u6865<\/em>\u3001\u6b21\u6839\u6865<\/em>\u3001\u63a5\u53e3\u4f18\u5148\u7ea7<\/em>\u6216 Cost<\/em> \u7b49\u914d\u7f6e\u3002\u5982\u679c\u7f51\u7edc\u4e2d\u6709\u5927\u91cf VLAN \uff0c\u90a3\u4e48\u6211\u4eec\u53ef\u4ee5\u5c06 VLAN \u6309\u7167\u4e00\u5b9a\u89c4\u5f8b\u5206\u522b\u6620\u5c04\u5230\u4e0d\u540c\u7684 Instance \u4e2d\uff0c\u4ece\u800c\u5b9e\u73b0\u8d1f\u8f7d\u5206\u62c5\uff0c\u800c\u4ea4\u6362\u673a\u4ec5\u5bf9\u8fd9\u51e0\u4e2a Instance \u8fdb\u884c\u751f\u6210\u6811\u8ba1\u7b97\uff0c\u8bbe\u5907\u8d44\u6e90\u6d88\u8017\u5927\u5927\u964d\u4f4e\u3002<\/p>\n

                      <\/div><\/span><\/p>\n

                      MSTP \u5f15\u5165\u4e86\u57df<\/strong>\uff08 Region \uff09\u7684\u6982\u5ff5\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u7f51\u7edc\u5212\u5206\u6210\u591a\u4e2a MST \u57df<\/strong>\uff08 Multiple Spanning Tree Region \uff0c\u591a\u751f\u6210\u6811\u57df\uff09\uff0c\u4e00\u4e2a MST \u57df\u53ef\u4ee5\u5305\u542b\u4e00\u53f0\u6216\u591a\u53f0\u4ea4\u6362\u673a\uff0c\u540c\u4e00\u4e2a MST \u57df\u7684\u4ea4\u6362\u673a\u5fc5\u987b\u914d\u7f6e\u76f8\u540c\u7684\u57df\u540d\uff08 Region Name \uff09\u3001\u76f8\u540c\u7684\u4fee\u8ba2\u7ea7\u522b\uff08 Revision Level \uff09\uff0c\u4ee5\u53ca\u76f8\u540c\u7684 VLAN \u4e0e Instance \u7684\u6620\u5c04\u5173\u7cfb\u3002<\/p>\n

                      \u66ff\u4ee3\u65b9\u6848<\/span><\/h3>\n

                      \u5b66\u5b8c STP\/RSTP\/MSTP \u540e\uff0c\u89e3\u51b3\u7f51\u7edc\u4e2d\u7684\u4e8c\u5c42\u73af\u8def\u95ee\u9898\uff0c\u60f3\u5230\u7684\u89e3\u51b3\u65b9\u6848\u5c31\u662f\u751f\u6210\u6811\u534f\u8bae\u3002\u4f46\u662f\u751f\u6210\u6811\u534f\u8bae\u6709\u5929\u751f\u7684\u7f3a\u9677\uff0c\u6536\u655b\u901f\u5ea6\u6162\uff0c\u867d\u7136 RSTP\/MSTP \u5bf9 STP \u8fdb\u884c\u4e86\u6539\u8fdb\uff0c\u4f46\u662f\u5728\u6beb\u79d2\u7ea7\u5207\u6362<\/strong>\u7684\u8981\u6c42\u4e0b\uff0c\u751f\u6210\u6811\u5c31\u4e0d\u9002\u7528\u4e86\u3002\u800c\u4e14\u751f\u6210\u6811\u7684\u539f\u7406\u662f\u5c06\u73af\u8def\u4e2d\u7684\u63a5\u53e3\u8fdb\u884c\u963b\u585e\uff0c\u5bfc\u81f4\u88ab\u963b\u585e\u7684\u7ebf\u8def\u65e0\u6cd5\u627f\u8f7d\u6d41\u91cf\uff0c\u9020\u6210\u7f51\u7edc\u8d44\u6e90\u7684\u6d6a\u8d39\u3002MSTP \u5728\u8fd9\u65b9\u9762\u8fdb\u884c\u4e86\u4f18\u5316\uff0c\u8ba9\u4e0d\u540c VLAN \u7684\u6d41\u91cf\u53ef\u4ee5\u5728\u4e0d\u540c\u7ebf\u8def\u8fdb\u884c\u8d1f\u8f7d\u5206\u62c5\uff0c\u53ef\u662f\u5bf9\u4e8e\u5355\u4e2a VLAN \u6765\u8bf4\uff0c\u59cb\u7ec8\u4f1a\u6709\u4e00\u4e9b\u7ebf\u8def\u65e0\u6cd5\u627f\u8f7d\u6d41\u91cf\u3002\u73b0\u5728\u5df2\u7ecf\u6709\u8bb8\u591a\u5176\u5b83\u6280\u672f\u6216\u89e3\u51b3\u65b9\u6848\u7528\u4e8e\u66ff\u4ee3\u751f\u6210\u6811\u534f\u8bae\u3002<\/p>\n

                      1\u3001Smart Link<\/h4>\n

                      Smart Link \u662f\u4e3a\u53cc\u4e0a\u884c\u7ec4\u7f51<\/strong>\u5b9a\u505a\u7684\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n

                      <\/div><\/span><\/p>\n

                      \u5982\u4e0a\u56fe\u6240\u793a\uff0c\u4ea4\u6362\u673a SW3 \u4e00\u6761\u4e0a\u884c\u94fe\u8def\u8fde\u63a5 SW1 \uff0c\u53e6\u4e00\u6761\u4e0a\u884c\u94fe\u8def\u8fde\u63a5 SW2 \u3002\u5728 SW3 \u4e0a\u521b\u5efa Smart Link \u7ec4\uff0c\u5c06 SW3 \u7684\u4e24\u4e2a\u4e0a\u884c\u63a5\u53e3\u6dfb\u52a0\u5230\u8fd9\u4e2a\u7ec4\u91cc\uff0cG0\/1 \u53e3\u6307\u5b9a\u4e3a Master \u63a5\u53e3\u3001G0\/2 \u53e3\u6307\u5b9a\u4e3a Slave \u63a5\u53e3\u3002\u9ed8\u8ba4\u53ea\u6709 Master \u63a5\u53e3\u662f\u6d3b\u8dc3\u7684\uff08 Active \uff09\uff0c\u8fd9\u4e2a\u63a5\u53e3\u53ef\u4ee5\u6b63\u5e38\u6536\u53d1\u6d41\u91cf\uff0c\u800c G0\/2 \u63a5\u53e3\u4f1a\u88ab\u963b\u585e\uff08 Inactive \uff09\u3002\u8fd9\u6837\u7f51\u7edc\u4e2d\u7684\u4e8c\u5c42\u73af\u8def\u5c06\u88ab\u6253\u7834\u3002<\/p>\n

                      <\/div><\/span><\/p>\n

                      \u5982\u4e0a\u56fe\u6240\u793a\uff0c\u5f53 SW3 \u7684 G0\/1 \u63a5\u53e3\u53d1\u751f\u6545\u969c\uff0c\u6216\u8005\u7ebf\u8def\u53d1\u751f\u6545\u969c\uff0cSmart Link \u4f1a\u9a6c\u4e0a\u611f\u77e5\u5230\uff0c\u5e76\u4e14\u5b9e\u73b0\u6beb\u79d2\u7ea7\u7684\u5feb\u901f\u5207\u6362<\/strong>\uff0cG0\/2 \u63a5\u53e3\u5c06\u7acb\u5373\u5207\u6362\u5230 Active \u72b6\u6001\uff0c\u5e76\u5f00\u59cb\u6536\u53d1\u6d41\u91cf\u3002\u5728 Smart Link \u5207\u6362\u8fc7\u7a0b\u4e2d\uff0cSW3 \u8fd8\u53ef\u4ee5\u4f7f\u7528 Flush \u62a5\u6587\u53bb\u5237\u65b0\u4e0a\u8054\u8bbe\u5907\uff0c\u5373 SW1 \u548c SW2 \u7684 MAC \u5730\u5740\u8868\u7b49\u6570\u636e\uff0c\u52a0\u5feb\u7f51\u7edc\u6536\u655b\u3002<\/p>\n

                      Smart Link \u914d\u7f6e\u7b80\u5355\uff0c\u5207\u6362\u65f6\u95f4\u5feb\u3002\u7531\u4e8e\u5de5\u4f5c\u673a\u5236\u7684\u9650\u5236\uff0c\u53ea\u80fd\u9002\u7528\u4e8e\u7279\u5b9a\u7684\u53cc\u4e0a\u884c\u7ec4\u7f51\u573a\u666f\u3002SW1 \u3001SW2 \u548c SW3 \u4f7f\u7528 Smart Link \u9632\u73af\u540e\uff0c\u4e5f\u5c31\u4e0d\u9700\u8981\u4f7f\u7528\u751f\u6210\u6811\u534f\u8bae\u4e86\u3002<\/p>\n

                      2\u3001iStack\/CSS<\/h4>\n

                      iStack \u662f\u534e\u4e3a\u76d2\u5f0f\u4ea4\u6362\u673a\u7684\u5806\u53e0<\/strong>\u6280\u672f\u3002\u800c CSS\uff08 Cluster Switch System \uff0c\u96c6\u7fa4\u4ea4\u6362\u7cfb\u7edf\uff09\u662f\u534e\u4e3a\u6846\u5f0f\u4ea4\u6362\u673a\u7684\u96c6\u7fa4<\/strong>\u6280\u672f\u3002<\/p>\n

                      \n

                      \u4ec0\u4e48\u662f\u5806\u53e0\uff1f<\/p>\n<\/blockquote>\n

                      \u6240\u8c13\u5806\u53e0\uff0c\u662f\u6307\u591a\u53f0\u7269\u7406\u4ea4\u6362\u673a\u901a\u8fc7\u7279\u5b9a\u7684\u7ebf\u7f06\u8fde\u63a5\uff0c\u5e76\u901a\u8fc7\u76f8\u5e94\u7684\u914d\u7f6e\uff0c\u7ec4\u6210\u903b\u8f91\u4e0a\u7684\u4e00\u53f0\u8bbe\u5907\u7684\u6280\u672f\u3002<\/p>\n

                      <\/div><\/span><\/p>\n

                      STP\/RSTP\/MSTP \u6216 Smart Link \u90fd\u662f\u91c7\u7528\u963b\u585e\u7279\u5b9a\u63a5\u53e3\u7684\u65b9\u5f0f\u5b9e\u73b0\u7f51\u7edc\u7684\u65e0\u73af\u5316\uff0c\u4f7f\u5f97\u7f51\u7edc\u8d44\u6e90\u5f97\u4e0d\u5230\u5145\u5206\u5229\u7528\u3002\u4e00\u65e6\u4f7f\u7528\u5806\u53e0\/\u96c6\u7fa4\u6280\u672f\uff0c\u60c5\u51b5\u5c31\u4e0d\u4e00\u6837\u4e86\u3002\u5982\u4e0a\u56fe\u6240\u793a\uff0c\u5047\u8bbe SW1 \u548c SW2 \u90fd\u662f\u76d2\u5f0f\u4ea4\u6362\u673a\uff0c\u4e14\u90fd\u652f\u6301 iStack \uff0c\u90a3\u4e48\u53ef\u4ee5\u4f7f\u7528\u5806\u53e0\u7ebf\u7f06\u628a SW1 \u548c SW2 \u8fde\u63a5\u8d77\u6765\uff0c\u7136\u540e\u7ec4\u5efa\u5806\u53e0\u7cfb\u7edf\uff0c\u5efa\u7acb\u5b8c\u6210\u540e\uff0cSW1 \u548c SW2 \u4e0d\u518d\u662f\u4e24\u53f0\u5355\u72ec\u7684\u4ea4\u6362\u673a\uff0c\u800c\u662f\u4e00\u4e2a\u6709\u4e24\u4e2a\u69fd\u4f4d\u7684\u6846\u5f0f\u4ea4\u6362\u673a\u3002\u90a3\u4e48\u7f51\u7edc\u7ed3\u6784\u5c06\u5927\u5927\u7b80\u5316\uff0c\u7531\u4e8e SW1 \u548c SW2 \u5728\u903b\u8f91\u4e0a\u662f\u4e00\u53f0\u8bbe\u5907\uff0c\u8bbe\u5907\u7684\u7ba1\u7406\u548c\u914d\u7f6e\u5c06\u53d8\u5f97\u7b80\u5355\u3002SW3 \u5206\u522b\u4e0e SW1 \u3001SW2 \u4e92\u8054\u7684\u7ebf\u8def\uff0c\u73b0\u5728\u53ef\u4ee5\u770b\u505a\u662f\u4e24\u53f0\u4ea4\u6362\u673a\u4e4b\u95f4\u7684\u4e24\u6761\u94fe\u8def\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u8fd9\u4e24\u6761\u94fe\u8def\u8fdb\u884c\u805a\u5408\uff0c\u8fd9\u6837\u7f51\u7edc\u4e2d\u5c06\u4e0d\u5b58\u5728\u4e8c\u5c42\u73af\u8def\uff0c\u4e5f\u65e0\u9700\u90e8\u7f72\u9632\u73af\u6280\u672f\u3002\u800c\u4e14\u6240\u6709\u7684\u94fe\u8def\u90fd\u5904\u4e8e\u5de5\u4f5c\u72b6\u6001\uff0c\u6ca1\u6709\u63a5\u53e3\u88ab\u963b\u585e\uff0c\u8bbe\u5907\u8d44\u6e90\u548c\u94fe\u8def\u8d44\u6e90\u7684\u5229\u7528\u7387\u5c06\u6700\u5927\u5316\u3002<\/p>\n

                      3\u3001\u65e0\u4e8c\u5c42\u73af\u8def\u573a\u666f<\/h4>\n

                      <\/div><\/span><\/p>\n

                      \u5728\u4e00\u4e9b\u7f51\u7edc\u4e2d\uff0c\u6211\u4eec\u4f1a\u4eba\u4e3a\u7684\u5c06\u7f51\u7edc\u4e2d\u7684\u4e8c\u5c42\u73af\u8def\u6253\u7834\uff0c\u4ece\u800c\u89c4\u907f\u9632\u73af\u6280\u672f\u7684\u5e94\u7528\u3002\u5982\u4e0a\u56fe\u6240\u793a\uff0c\u6c47\u805a\u5c42\u4ea4\u6362\u673a DSW1 \u3001DSW2 \u4e0e\u63a5\u5165\u5c42\u4ea4\u6362\u673a ASW1 \u3001ASW2 \u6784\u6210\u4e00\u4e2a\u5012 U \u578b\u7ec4\u7f51\uff0cASW1 \u548c ASW2 \u4e4b\u95f4\u672a\u8fde\u7ebf\uff0c\u56e0\u6b64\u8fd9\u56db\u53f0\u4ea4\u6362\u673a\u7ec4\u6210\u7684\u7f51\u7edc\u4e2d\uff0c\u5e76\u4e0d\u5b58\u5728\u4e8c\u5c42\u73af\u8def\uff0c\u4e5f\u5c31\u65e0\u9700\u4f7f\u7528\u751f\u6210\u6811\u6280\u672f\u6216\u5176\u5b83\u9632\u73af\u6280\u672f\u4e86\u3002<\/p>\n

                      \u8fd9\u4e2a\u7f51\u7edc\u4e2d\uff0c\u670d\u52a1\u5668\u4f7f\u7528\u4e86\u53cc\u4e0a\u884c\u94fe\u8def\uff0c\u670d\u52a1\u5668\u7684\u4e24\u5f20\u7f51\u5361\u4ee5\u4e3b\u5907\u7684\u65b9\u5f0f\u8fd0\u884c\uff0c\u5047\u8bbe\u8fde\u63a5 ASW1 \u7684\u7f51\u5361\u4e3a\u4e3b\u7f51\u5361\u3002\u5982\u679c ASW1 \u548c DSW1 \u7684\u94fe\u8def\u53d1\u751f\u6545\u969c\uff0c\u670d\u52a1\u5668\u662f\u65e0\u6cd5\u611f\u77e5\u5230\u7684\uff0c\u4f9d\u7136\u4f1a\u4ece\u4e3b\u7f51\u5361\u53d1\u9001\u6570\u636e\uff0c\u800c\u6570\u636e\u5230\u8fbe ASW1 \u540e\u88ab\u4e22\u5f03\u3002\u4e00\u79cd\u89e3\u51b3\u65b9\u6848\u5c31\u662f\u5728\u670d\u52a1\u5668\u4e0a\u90e8\u7f72\u76f8\u5e94\u7684\u5e94\u7528\u7a0b\u5e8f\uff0c\u5468\u671f\u6027\u7684\u4ece\u4e3b\u7f51\u5361\u53d1\u51fa\u63a2\u6d4b\u62a5\u6587\uff0c\u6765\u63a2\u6d4b\u5230\u9ed8\u8ba4\u7f51\u5173\u7684\u53ef\u8fbe\u6027\uff0cDSW1 \u548c DSW2 \u4e0a\u914d\u7f6e\u670d\u52a1\u5668\u7684\u9ed8\u8ba4\u7f51\u5173\uff0c\u5982\u679c\u53d1\u73b0\u4e3b\u7f51\u5361\u5230\u9ed8\u8ba4\u7f51\u5173\u4e0d\u53ef\u8fbe\uff0c\u5219\u81ea\u52a8\u5c06\u6d41\u91cf\u5207\u6362\u5230\u5907\u7f51\u5361\u3002<\/p>\n

                      \u53e6\u4e00\u79cd\u89e3\u51b3\u65b9\u6848\u5c31\u662f\u4f7f\u7528\u534e\u4e3a\u7684 Monitor Link<\/strong> \u6280\u672f\u3002Monitor Link \u662f\u4e00\u79cd\u63a5\u53e3\u8054\u52a8\u6280\u672f\uff0c\u4ea4\u6362\u673a\u90e8\u7f72\u540e\u4f1a\u6301\u7eed\u76d1\u63a7 Monitor Link \u7684\u4e0a\u884c\u63a5\u53e3\uff08\u53ef\u6307\u5b9a\u63a5\u53e3\uff09\uff0c\u5f53\u4e0a\u884c\u63a5\u53e3\u53d1\u751f\u6545\u969c\u65f6\uff0c\u4ea4\u6362\u673a\u9a6c\u4e0a\u5c06\u4e0b\u884c\u63a5\u53e3\uff08\u53ef\u6307\u5b9a\u63a5\u53e3\uff09\u5173\u95ed\u3002ASW1 \u53ef\u90e8\u7f72 Monitor Link \u6280\u672f\uff0c\u5c06 DSW1 \u7684\u63a5\u53e3\u914d\u7f6e\u4e3a\u4e0a\u884c\u63a5\u53e3\uff0c\u5c06\u8fde\u63a5\u670d\u52a1\u5668\u7f51\u5361\u7684\u63a5\u53e3\u914d\u7f6e\u4e3a\u4e0b\u884c\u63a5\u53e3\u3002\u8fd9\u6837\u7684\u8bdd\uff0c\u5f53 ASW1 \u7684\u4e0a\u884c\u63a5\u53e3\u53d1\u751f\u6545\u969c\uff0c\u4ea4\u6362\u673a\u7acb\u9a6c\u5c06\u8fde\u63a5\u670d\u52a1\u5668\u7684\u4e0b\u884c\u63a5\u53e3\u5173\u95ed\uff0c\u4ece\u800c\u4f7f\u5f97\u670d\u52a1\u5668\u7acb\u5373\u611f\u77e5\u5230\u6545\u969c\u7684\u53d1\u751f\uff0c\u7136\u540e\u5c06\u8fde\u63a5 ASW2 \u7684\u7f51\u5361\u5207\u6362\u6210\u4e3b\u7f51\u5361\uff0c\u5e76\u5728\u65b0\u7684\u4e3b\u7f51\u5361\u4e0a\u53d1\u9001\u6570\u636e\u3002<\/p>\n

                      \u7ed3\u5c3e<\/span><\/h3>\n

                      STP<\/strong> \u53ef\u4ee5\u5728\u7f51\u7edc\u4e2d\u5f62\u6210\u4e00\u68f5\u65e0\u73af\u8def\u7684\u6811\uff0c\u89e3\u51b3\u73af\u8def\u6545\u969c\u5e76\u5b9e\u73b0\u5197\u4f59\u5907\u4efd\u3002<\/p>\n

                      <\/div><\/span><\/p>\n

                      RSTP<\/strong> \u5728 STP \u529f\u80fd\u57fa\u7840\u4e0a\uff0c\u901a\u8fc7\u66ff\u4ee3\u63a5\u53e3\u8ba9\u6839\u63a5\u53e3\u5feb\u901f\u8fdb\u5165\u8f6c\u53d1\u72b6\u6001\u3001\u91c7\u7528 P\/A \u673a\u5236\u548c\u8bbe\u7f6e\u8fb9\u7f18\u63a5\u53e3\u7b49\u65b9\u6cd5\uff0c\u5b9e\u73b0\u4e86\u66f4\u5feb\u7684\u6536\u655b\u901f\u5ea6\u3002<\/p>\n

                      <\/div><\/span><\/p>\n

                      MSTP<\/strong> \u5219\u5728\u5927\u89c4\u6a21\u3001\u591a VLAN \u73af\u5883\u4e0b\u5f62\u6210\u591a\u4e2a\u751f\u6210\u6811\u5b9e\u4f8b\uff0c\u4ece\u800c\u63d0\u4f9b\u591a VLAN \u8d1f\u8f7d\u5747\u8861\u3002<\/p>\n

                      <\/div><\/span><\/p>\n

                      MSTP \u540c\u65f6\u517c\u5bb9<\/strong> STP \u3001RSTP \uff0c\u8fd0\u884c MSTP \u7684\u8bbe\u5907\u53ef\u4ee5\u8bc6\u522b STP \u3001RSTP \u4e24\u79cd\u534f\u8bae\u62a5\uff0c\u5e76\u5e94\u7528\u4e8e\u751f\u6210\u6811\u8ba1\u7b97\u3002<\/p>\n

                      \u53e6\u5916 RSTP\/MSTP \u4e0e STP \u7684\u63a5\u53e3\u72b6\u6001<\/strong>\u4e0d\u540c\uff0c\u4ece STP \u7684 5 \u79cd\u53d8\u6210 3 \u79cd\u3002<\/p>\n

                      <\/div><\/span><\/p>\n

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                      <\/div><\/span><\/p>\n

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