{"id":7083,"date":"2023-09-26T16:25:52","date_gmt":"2023-09-26T08:25:52","guid":{"rendered":"https:\/\/i007.vip:15443\/wordpress\/?p=7083"},"modified":"2023-09-26T16:25:52","modified_gmt":"2023-09-26T08:25:52","slug":"32%e5%bc%a0%e5%9b%be%e8%af%a6%e8%a7%a3bgp%e8%b7%af%e7%94%b1%e5%8d%8f%e8%ae%ae%ef%bc%9abgp%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5%e3%80%81bgp%e5%af%b9%e7%ad%89%e4%bd%93%e3%80%81bgp%e6%8a%a5%e6%96%87","status":"publish","type":"post","link":"https:\/\/i007.cc\/wordpress\/archives\/7083","title":{"rendered":"32\u5f20\u56fe\u8be6\u89e3BGP\u8def\u7531\u534f\u8bae\uff1aBGP\u57fa\u672c\u6982\u5ff5\u3001BGP\u5bf9\u7b49\u4f53\u3001BGP\u62a5\u6587\u7c7b\u578b\u3001BGP\u72b6\u6001\u673a\u7b49"},"content":{"rendered":"
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cc from<\/a><\/p>\n

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\u53d1\u5e03\u4e8e\u00a02021-12-21 20:01:00<\/span><\/div>\n
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14.8K<\/span><\/span>1<\/span><\/span><\/div>\n<\/div>\n<\/div>\n
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\u524d\u8a00<\/strong><\/h3>\n

BGP\u8def\u7531\u534f\u8bae<\/strong>\u662f\u7f51\u7edc\u4e2d\u4f7f\u7528\u6700\u4e3a\u5e7f\u6cdb\u7684\u534f\u8bae\u4e86\uff0c\u4e0d\u7ba1\u662f\u8fd0\u8425\u5546\u7f51\u7edc\u3001\u4f01\u4e1a\u7f51\u7edc\u3001\u6570\u636e\u4e2d\u5fc3\u7f51\u7edc\uff0c\u76ee\u524d\u90fd\u6709\u5728\u4f7f\u7528BGP\u534f\u8bae\u3002<\/p>\n

\u4eca\u5929\u5c31\u7ed9\u5927\u5bb6\u8be6\u7ec6\u4ecb\u7ecd\u4e0bBGP\u8def\u7531\u534f\u8bae\uff1b<\/p>\n

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\u4ec0\u4e48\u662fBGP\u8def\u7531\u534f\u8bae<\/strong><\/h3>\n

1\u3001BGP\u534f\u8bae\u51fa\u73b0\u80cc\u666f<\/p><\/blockquote>\n

OSPF\u3001ISIS\u8def\u7531\u534f\u8bae\u5728\u7f51\u7edc\u4e2d\u5df2\u7ecf\u5e7f\u6cdb\u4f7f\u7528\uff0c\u4f46\u662f\u968f\u7740\u7f51\u7edc\u89c4\u6a21\u7684\u6269\u5927\uff0c\u8def\u7531\u6761\u76ee\u4e5f\u968f\u589e\u52a0\uff0cIGP\u534f\u8bae\u5df2\u7ecf\u65e0\u6cd5\u7ba1\u7406\u5927\u89c4\u6a21\u7f51\u7edc\u4e86\u3002\u56e0\u6b64\u51fa\u73b0\u4e86AS\u7684\u6982\u5ff5\u3002<\/p>\n

AS\u7684\u6982\u5ff5\u6bd4\u8f83\u62bd\u8c61\u5440\u3002<\/p>\n

\u5b98\u65b9\u89e3\u91ca\uff1aAS\u662f\u6307\u5728\u540c\u4e00\u7ec4\u7ec7\u7ba1\u7406\u4e0b\uff0c\u4f7f\u7528\u7edf\u4e00\u9009\u8def\u7b56\u7565\u8bbe\u5907\u7684\u96c6\u5408\u3002<\/p>\n

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\u7b80\u5355\u6765\u8bf4\uff1a\u5c31\u662f\u4f60\u53ef\u4ee5\u628a\u4e00\u4e2a\u7f51\u7edc\u4e2d\u7684\u4e0d\u540c\u7684\u8bbe\u5907\u5212\u5206\u5230\u4e0d\u540c\u7684\u7ec4\uff08AS\uff09\u4e2d\uff0c\u6216\u8005\u90fd\u5212\u5206\u5728\u4e00\u4e2a\u7ec4\u4e2d\uff0c\u90a3\u4e48\u4e00\u4e2a\u7ec4\u4e2d\u7684\u8fd9\u4e9b\u8bbe\u5907\u5177\u5907\u76f8\u540c\u7684\u8def\u7531\u534f\u8bae\u3002<\/p>\n

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

\u6bd4\u5982\u4f60\u53ef\u4ee5\u5c06\u4f01\u4e1a\u603b\u90e8\u7f51\u7edc\u5212\u5206\u5728\u4e00\u4e2aAS\u4e2d\uff0c\u4f01\u4e1a\u7684\u5206\u90e8\u7f51\u7edc\u5212\u5206\u5728\u4e00\u4e2aAS\u4e2d\u3002\u4e0d\u540c\u7684AS\u53ef\u4ee5\u8fd0\u884c\u4e0d\u540c\u7684\u8def\u7531\u534f\u8bae\u3002<\/p>\n

\u90a3\u4e48\u4e0d\u540cAS\u7684\u7f51\u7edc\u9700\u8981\u901a\u4fe1\u65f6\uff0c\u91c7\u7528\u4ec0\u4e48\u8def\u7531\u534f\u8bae\u8fdb\u884c\u901a\u4fe1\u5462\uff1f\u7b54\u6848\u5c31\u662f\u672c\u7ae0\u7684BGP\u8def\u7531\u534f\u8bae\u3002\u90a3\u4e48\u4e3a\u4ec0\u4e48\u4e0d\u80fd\u591f\u901a\u8fc7IGP\uff08ISIS\u3001BGP\uff09\u8fdb\u884c\u901a\u4fe1\u5462\uff1f<\/p>\n

\u8fd9\u4e2a\u4e3e\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50\uff0c\u4f01\u4e1a\u7f51\u7edc\u6216\u8005\u6570\u636e\u4e2d\u5fc3\u7f51\u7edc\u5bf9\u63a5\u8fd0\u8425\u5546\u7684Internet\u65f6\u3002\u5982\u679c\u4f7f\u7528IGP\u8def\u7531\u534f\u8bae\uff08OSPF\u3001ISIS\uff09\u5bf9\u63a5\u65f6\uff0c\u90a3\u4e48\u8fd9\u4e2a\u65f6\u5019\u4f01\u4e1a\u7f51\u7edc\u548c\u8fd0\u8425\u5546\u7684\u7f51\u7edc\u662f\u8fd0\u884c\u5728\u4e00\u5f20\u7f51\u7edc\u4e2d\uff0c\u8fd9\u4e2a\u662f\u4e0d\u5b89\u5168\u7684\uff0c\u4f60\u53ef\u4ee5\u8ba4\u4e3a\u8fd0\u8425\u5546\u4e3a\u4ec0\u4e48\u4fe1\u4efb\u4f60\u7684\u4f01\u4e1a\u7f51\u7edc\uff1f<\/p>\n

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\u8fd8\u6709\u4e00\u70b9\u5c31\u662f\u6574\u4e2a\u7f51\u7edc\u89c4\u6a21\u6269\u5927\uff0c\u8def\u7531\u6570\u91cf\u589e\u591a\uff0c\u8def\u7531\u6536\u655b\u6162\u3002<\/p>\n

\u90a3\u4e48\u6709\u6ca1\u6709\u4e00\u79cd\u8def\u7531\u534f\u8bae\u53ef\u4ee5\u5b9e\u73b0\u4e0d\u540c\u7f51\u7edc\u95f4\u7684\u8def\u7531\u4ea4\u4e92\u5462\uff1f\u7b54\u6848\u5c31\u662fBGP\u3002BGP\u6709\u4e2a\u597d\u5904\u5c31\u662f\u4e0d\u4ea7\u751f\u8def\u7531\uff0c\u53ea\u4f20\u9012\u8def\u7531\uff0c\u5e76\u4e14\u5177\u5907\u4e30\u5bcc\u7684\u8def\u7531\u7b56\u7565\u3002<\/p>\n

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

\u8fd9\u4e2a\u65f6\u5019\u53ef\u80fd\u6709\u4eba\u8fd8\u4f1a\u7ad9\u51fa\u6765\u8bf4\uff0c\u9759\u6001\u534f\u8bae\u4e0d\u5c31\u53ef\u4ee5\u89e3\u51b3\u5417\uff1f\u5176\u5b9e\u662f\u53ef\u4ee5\u89e3\u51b3\uff0c\u4e0d\u8fc7\u6709\u4e2a\u95ee\u9898\u5c31\u662f\u4f7f\u7528\u9759\u6001\u534f\u8bae\u65f6\u7f51\u7edc\u53d8\u52a8\u65f6\u90fd\u9700\u8981\u4eba\u624b\u52a8\u53bb\u589e\u5220\u8def\u7531\uff0c\u90a3\u4e48\u6709\u6ca1\u6709\u4e00\u79cd\u52a8\u6001\u7684\u65b9\u5f0f\u5462\uff1f\u7b54\u6848\u5c31\u662fBGP\u8def\u7531\u534f\u8bae\u4e86\u3002<\/p>\n

\u6240\u4ee5\u8bf4\u4e0a\u9762\u7684\u4f8b\u5b50\uff1a\u4f01\u4e1a\u548c\u8fd0\u8425\u5546\u5bf9\u63a5\u65f6\u53ef\u4ee5\u91c7\u7528BGP\u8def\u7531\u534f\u8bae\u8fdb\u884c\u5bf9\u63a5\u5b9e\u73b0\u8def\u7531\u7684\u4ea4\u4e92\u3002<\/p>\n

2\u3001BGP\u4f20\u9012\u8def\u7531\u4f18\u52bf<\/p><\/blockquote>\n

\u4e0d\u540cAS\u4e4b\u95f4\u901a\u8fc7BGP\u8def\u7531\u534f\u8bae\u5bf9\u63a5\uff0c\u90a3\u4e48\u4f7f\u7528BGP\u76f8\u6bd4IGP\u534f\u8bae\u6709\u90a3\u4e48\u597d\u5904\u5462\uff1f<\/p>\n

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\"\"<\/div>\n<\/div>\n<\/figure>\n
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  • BGP\u662f\u57fa\u4e8eTCP\u7684\u8def\u7531\u534f\u8bae\uff0c\u53ea\u8981\u80fd\u591f\u5efa\u7acbTCP\u5c31\u80fd\u591f\u5efa\u7acbBGP\uff1b<\/li>\n
  • BGP\u53ea\u4f20\u9012\u8def\u7531\u4fe1\u606f\uff0c\u4e0d\u8ba1\u7b97\u8def\u7531\uff0c\u4e0d\u4f1a\u66b4\u9732AS\u5185\u90e8\u7684\u7f51\u7edc\u62d3\u6251\uff1b<\/li>\n
  • BGP\u7684\u8def\u7531\u66f4\u65b0\u662f\u89e6\u53d1\u66f4\u65b0\uff0c\u4e0d\u662f\u5468\u671f\u6027\u66f4\u65b0\uff1b<\/li>\n<\/ul>\n

    3\u3001\u4ec0\u4e48\u662fBGP\u8def\u7531\u534f\u8bae<\/p><\/blockquote>\n

    BGP\u662f\u4e00\u79cd\u57fa\u4e8e\u8ddd\u79bb\u77e2\u91cf\u7684\u8def\u7531\u534f\u8bae\uff0c\u7528\u4e8e\u5b9e\u73b0\u4e0d\u540cAS\u4e4b\u95f4\u7684\u8def\u7531\u53ef\u8fbe\u3002<\/p>\n

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

    BGP\u534f\u8bae\u7684\u57fa\u672c\u7279\u70b9\uff1a<\/p>\n

    \uff081\uff09BGP\u662f\u4e00\u79cd\u5916\u90e8\u7f51\u5173\u534f\u8bae\uff0c\u5176\u7740\u773c\u70b9\u4e0d\u5728\u4e8e\u53d1\u73b0\u548c\u8ba1\u7b97\u8def\u7531\uff0c\u800c\u5728\u4e8e\u63a7\u5236\u8def\u7531\u7684\u4f20\u64ad\u548c\u9009\u62e9\u6700\u4f73\u8def\u7531\uff1b<\/p>\n

    \uff082\uff09BGP\u4f7f\u7528TCP\u4f5c\u4e3a\u5176\u4f20\u8f93\u5c42\u534f\u8bae\uff08\u7aef\u53e3\u53f7179\uff09,\u63d0\u9ad8\u4e86\u534f\u8bae\u7684\u53ef\u9760\u6027\uff1b<\/p>\n

    \uff083\uff09BGP\u662f\u4e00\u79cd\u8ddd\u79bb\u77e2\u91cf\u8def\u7531\u534f\u8bae\uff0c\u5728\u8bbe\u8ba1\u4e0a\u5c31\u907f\u514d\u4e86\u73af\u8def\u7684\u53d1\u751f\uff1b<\/p>\n

    \uff084\uff09BGP\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u8def\u7531\u7b56\u7565\uff0c\u80fd\u591f\u5b9e\u73b0\u8def\u7531\u7684\u7075\u6d3b\u8fc7\u6ee4\u548c\u9009\u62e9\uff1b<\/p>\n

    \uff085\uff09BGP\u91c7\u7528\u89e6\u53d1\u5f0f\u589e\u91cf\u66f4\u65b0\uff0c\u800c\u4e0d\u662f\u5468\u671f\u6027\u7684\u66f4\u65b0\uff1b<\/p>\n

    BGP\u5bf9\u7b49\u4f53<\/strong><\/h3>\n

    1\u3001\u4ec0\u4e48\u662fBGP\u5bf9\u7b49\u4f53<\/p><\/blockquote>\n

    BGP\u53d1\u8a00\u8005<\/strong>\uff1a\u8fd0\u884cBGP\u8def\u7531\u534f\u8bae\u7684\u8def\u7531\u5668\u79f0\u4e3aBGP\u53d1\u8a00\u8005\uff08BGP\u8def\u7531\u5668\uff09\uff1b<\/p>\n

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

    BGP\u5bf9\u7b49\u4f53<\/strong>\uff1a\u4e24\u4e2a\u5efa\u7acbBGP\u4f1a\u8bdd\uff08BGP\u7684\u4f1a\u8bdd\u662f\u57fa\u4e8eTCP\u5efa\u7acb\u7684\uff09\u7684\u8def\u7531\u5668\u4e92\u4e3aBGP\u5bf9\u7b49\u4f53\uff0cBGP\u5bf9\u7b49\u4f53\u4e4b\u95f4\u53ef\u4ee5\u4ea4\u6362\u8def\u7531\u8868\uff1b<\/p>\n

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    2\u3001BGP\u5bf9\u7b49\u4f53\u5206\u7c7b<\/p><\/blockquote>\n

    BGP\u5bf9\u7b49\u4f53\u53ef\u4ee5\u6309\u7167\u4e24\u4e2a\u8def\u7531\u5668\u662f\u5426AS\u76f8\u540c\uff0c\u5206\u4e3aEBGP\u5bf9\u7b49\u4f53\u548cIBGP\u5bf9\u7b49\u4f53\u3002<\/p>\n

    \n
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    \uff081\uff09IBGP\uff1a\u4f4d\u4e8e\u76f8\u540c\u7684AS\u7684BGP\u8def\u7531\u5668\u4e92\u4e3aIBGP\u5bf9\u7b49\u4f53\u5173\u7cfb\uff1b<\/p>\n

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

    \uff082\uff09EBGP\uff1a\u4f4d\u4e8e\u4e0d\u540c\u7684AS\u7684BGP\u8def\u7531\u5668\u4e92\u4e3aEBGP\u5bf9\u7b49\u4f53\u5173\u7cfb\uff1b<\/p>\n

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

    \u80fd\u591f\u5efa\u7acb\u5bf9\u7b49\u4f53\u7684\u6761\u4ef6:<\/strong><\/p>\n

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    • \u4e24\u4e2a\u8def\u7531\u5668\u6307\u5b9a\u5efa\u7acb\u5bf9\u7b49\u4f53\u7684\u5730\u5740\u5fc5\u9700\u53ef\u8fbe\uff1b<\/li>\n
    • TCP\u8fde\u63a5\u80fd\u591f\u5efa\u7acb\uff1b<\/li>\n<\/ul>\n

      3\u3001\u5982\u4f55\u5efa\u7acbBGP\u5bf9\u7b49\u4f53<\/p><\/blockquote>\n

      \uff081\uff09TCP\u8fde\u63a5\u5efa\u7acb<\/strong><\/p>\n

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

      \u5047\u8bbeBGP\u8def\u7531\u5668R1\u5148\u542f\u52a8\uff0c\u5219R1\u5148\u53d1\u8d77\u5efa\u7acbTCP\u8fde\u63a5\uff0c\u901a\u8fc73\u6b21\u63e1\u624b\u5b8c\u6210TCP\u7684\u8fde\u63a5\u5efa\u7acb\u3002<\/p>\n

      \uff082\uff09BGP\u8def\u7531\u5668\u53d1\u9001OPEN\u62a5\u6587\u534f\u5546\u53c2\u6570<\/strong><\/p>\n

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

      \u4e09\u6b21\u63e1\u624b\u5efa\u7acb\u5b8c\u6210\u540e\uff0cR1\u548cR2\u4e4b\u95f4\u76f8\u4e92\u53d1\u9001OPEN\u62a5\u6587\uff0c\u7528\u4e8e\u5efa\u7acb\u5bf9\u7b49\u4f53\u7684\u53c2\u6570\u534f\u5546\u3002<\/p>\n

      OPEN\u62a5\u6587\u53c2\u6570\uff1a<\/strong><\/p>\n

        \n
      • \u81ea\u8eabAS\u53f7\uff1b<\/li>\n
      • hold time\uff1a\u7528\u4e8e\u534f\u5546\u540e\u7eedkeepalive\u62a5\u6587\u53d1\u9001\u65f6\u95f4\uff1b<\/li>\n
      • BGP identifier\uff1a\u81ea\u8eabrouter id\uff1b<\/li>\n<\/ul>\n

        \uff083\uff09BGP\u8def\u7531\u5668\u53d1\u9001keepalive\u62a5\u6587\u5b8c\u6210\u5bf9\u7b49\u4f53\u5efa\u7acb<\/strong><\/p>\n

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

        \u53c2\u6570\u534f\u5546\u6b63\u5e38\u540e\u53cc\u65b9\u76f8\u4e92\u53d1\u9001keepalive\u62a5\u6587\uff0c\u6536\u5230\u5bf9\u65b9\u7684keepalive\u62a5\u6587\u540e\u5bf9\u7b49\u4f53\u5efa\u7acb\u6210\u529f\uff0c\u540c\u65f6\u540e\u7eed\u5b9a\u671f\u53d1\u9001keepalive\u62a5\u6587\u7528\u4e8e\u4fdd\u6301\u8fde\u63a5\u3002<\/p>\n

        \uff084\uff09BGP\u8def\u7531\u5668\u53d1\u9001UPDATE\u62a5\u6587\u901a\u544a\u8def\u7531<\/strong><\/p>\n

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

        BGP\u5bf9\u7b49\u4f53\u5173\u7cfb\u5efa\u7acb\u597d\u4e86\uff0c\u5c31\u53ef\u4ee5\u901a\u8fc7BGP update \u62a5\u6587\u901a\u544a\u8def\u7531\u5230\u5bf9\u7b49\u4f53\u3002\u6536\u5230\u5bf9\u65b9\u7684keepalive\u62a5\u6587\u540e\u5bf9\u7b49\u4f53\u5efa\u7acb\u6210\u529f\uff0c\u540c\u65f6\u540e\u7eed\u5b9a\u671f\u53d1\u9001keepalive\u62a5\u6587\u7528\u4e8e\u4fdd\u6301\u8fde\u63a5\u3002<\/p>\n

        4\u3001BGP\u5bf9\u7b49\u4f53\u5efa\u7acb\u4f7f\u7528\u6e90\u5730\u5740<\/p><\/blockquote>\n

        BGP\u9ed8\u8ba4\u4f7f\u7528\u51fa\u63a5\u53e3\u7684IP\u5730\u5740\u5efa\u7acb\u5bf9\u7b49\u4f53\u3002<\/p>\n

        \uff081\uff09\u5728\u5efa\u7acbIBGP\u5bf9\u7b49\u4f53\u5173\u7cfb\u65f6\uff0c\u5efa\u8bae\u4f7f\u7528loopback\u5730\u5740\u5efa\u7acbIBGP\u5bf9\u7b49\u4f53\u3002\u56e0\u4e3aloopback\u5730\u5740\u7a33\u5b9a\uff0c\u53ef\u4ee5\u501f\u52a9\u5185\u90e8IGP\u5197\u4f59\u4fdd\u8bc1\u53ef\u9760\u6027\u3002<\/p>\n

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

        \u4f8b\u5982\u4e0a\u56fe\uff1a<\/p>\n

        R1\u548cR2\u901a\u8fc7loopback\u5730\u5740\u5efa\u7acbIBGP\u5bf9\u7b49\u4f53\uff0c\u5982\u679cR1\u548cR2\u4e4b\u95f4\u7684\u7269\u7406\u94fe\u8def\u65ad\u4e86\uff0cloopback\u5730\u5740\u7684\u8fde\u901a\u6027\u4e5f\u4e0d\u4f1a\u53d7\u5f71\u54cd\uff0c\u53ef\u4ee5\u901a\u8fc7R3\u5b9e\u73b0R1\u548cR2\u7684loopback\u5730\u5740\u7684\u4e92\u901a\uff0c\u90a3\u4e48R1\u548cR2\u4e4b\u95f4\u7684\u5bf9\u7b49\u4f53\u5173\u7cfb\u4f9d\u7136\u53ef\u4ee5\u4fdd\u6301\u5efa\u7acb\u3002\u5982\u679c\u901a\u8fc7\u63a5\u53e3\u5efa\u7acb\u7684\u8bdd\uff0c\u5c31\u4f1a\u5bfc\u81f4BGP\u5bf9\u7b49\u4f53\u5173\u7cfb\u4e2d\u65ad\u3002<\/p>\n

        \uff082\uff09\u5728\u5efa\u7acbEBGP\u5bf9\u7b49\u4f53\u5173\u7cfb\u65f6\uff0c\u5efa\u8bae\u4f7f\u7528\u76f4\u8fde\u5730\u5740\u5efa\u7acbEBGP\u5bf9\u7b49\u4f53\u3002\u5982\u679c\u4f7f\u7528loopback\uff0c\u9700\u8981\u6ce8\u610fEBGP\u591a\u8df3\u7684\u95ee\u9898\u3002<\/p>\n

        BGP\u62a5\u6587\u7c7b\u578b<\/strong><\/h3>\n

        1\u3001BGP\u62a5\u6587\u7c7b\u578b<\/p><\/blockquote>\n

        BGP\u5b58\u57285\u79cd\u4e0d\u540c\u7c7b\u578b\u7684\u62a5\u6587\uff0c\u5206\u522b\u662fopen\u3001update\u3001notification\u3001keepalive\u3001route-refresh\u3002<\/p>\n

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

        2\u3001BGP\u62a5\u6587\u5934\u683c\u5f0f<\/p><\/blockquote>\n

        \u4e0d\u540c\u4e8e\u5e38\u89c1\u7684IGP\u534f\u8bae\uff0cBGP\u4f7f\u7528TCP\u4f5c\u4e3a\u4f20\u8f93\u5c42\u534f\u8bae\uff0c\u7aef\u53e3\u53f7179\u3002BGP\u5b58\u57285\u79cd\u4e0d\u540c\u7c7b\u578b\u7684\u62a5\u6587\uff0c\u4e0d\u540c\u7c7b\u578b\u7684\u62a5\u6587\u5177\u6709\u76f8\u540c\u7684\u5934\u90e8\u3002<\/p>\n

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

        \u62a5\u6587\u5934\u5b57\u6bb5\u89e3\u91ca\uff1a<\/p>\n

        \n
        \n
        \"\"<\/div>\n<\/div>\n<\/figure>\n
          \n
        • Marker\uff1a16Byte\uff0c\u7528\u4e8e\u6807\u660eBGP\u7684\u8fb9\u754c\uff0c\u6240\u6709\u7684bit\u5747\u4e3a\u201c1\u201d<\/li>\n
        • Length\uff1a2Byte\uff0cBGP\u603b\u62a5\u6587\u957f\u5ea6\uff08\u5305\u62ec\u62a5\u6587\u5934\uff09<\/li>\n
        • Type\uff1a1Byte\uff0cBGP\u62a5\u6587\u7684\u7c7b\u578b\u3002\u5176\u53d6\u503c\u4ece1\u52305\uff0c\u5206\u522b\u8868\u793aopen\u3001update\u3001notification\u3001keepalive\u3001route-refresh\u62a5\u6587\u3002<\/li>\n<\/ul>\n

          3\u3001BGP\u62a5\u6587\u683c\u5f0f<\/p><\/blockquote>\n

          \uff081\uff09OPEN\u62a5\u6587<\/p>\n

          open\u62a5\u6587\u662fTCP\u8fde\u63a5\u5efa\u7acb\u540e\u53d1\u9001\u7684\u7b2c\u4e00\u4e2a\u62a5\u6587\uff0c\u7528\u4e8e\u534f\u5546\u53c2\u6570\uff1b<\/p>\n

          \n
          \n
          \"\"<\/div>\n<\/div>\n<\/figure>\n
            \n
          • version\uff1abgp\u7248\u672c\uff0c\u901a\u5e38\u4e3a4\uff1b<\/li>\n
          • My AS\uff1a\u672c\u5730AS\u53f7\uff1b<\/li>\n
          • Hold time\uff1a\u4fdd\u6301\u65f6\u95f4\u3002\u5728\u5efa\u7acb\u5bf9\u7b49\u4f53\u5173\u7cfb\u65f6\u4e24\u7aef\u8981\u534f\u5546hold time\uff0c\u5982\u679c\u5728\u8fd9\u6bb5\u65f6\u95f4\u5185\u672a\u6536\u5230\u5bf9\u7aef\u53d1\u6765\u7684keepalive\u62a5\u6587\u548cupdate\u62a5\u6587\uff0c\u5219\u8ba4\u4e3aBGP\u8fde\u63a5\u4e2d\u65ad\uff1b<\/li>\n
          • BGP identifier: BGP\u6807\u8bc6\u7b26\uff0c\u4ee5IP\u5730\u5740\u5f62\u5f0f\u6807\u8bc6\uff0c\u7528\u6765\u8bc6\u522b\u8def\u7531\u5668\u3002<\/li>\n<\/ul>\n

            \uff082\uff09Update\u62a5\u6587<\/p>\n

            Update\u62a5\u6587\u7528\u4e8e\u5728\u5bf9\u7b49\u4f53\u4e4b\u95f4\u4f20\u9012\u8def\u7531\u4fe1\u606f\uff0c\u53ef\u4ee5\u7528\u6765\u53d1\u5e03\u548c\u64a4\u9500\u8def\u7531\u3002<\/p>\n

            \u4e00\u4e2aUpdate\u62a5\u6587\u53ef\u4ee5\u901a\u544a\u5177\u6709\u76f8\u540c\u8def\u5f84\u5c5e\u6027\u7684\u591a\u6761\u8def\u7531\uff0c\u8fd9\u4e9b\u8def\u7531\u4fdd\u5b58\u5728NLRI\uff08\u7f51\u7edc\u5c42\u53ef\u8fbe\u4fe1\u606f\uff09\u4e2d\u3002<\/p>\n

            \n
            \n
            \"\"<\/div>\n<\/div>\n<\/figure>\n
              \n
            • Withdrawn Routes Length\uff1a\u6807\u660eWithdrawn Routes\u90e8\u5206\u7684\u957f\u5ea6\u3002\u5176\u503c\u4e3a\u96f6\u65f6\uff0c\u8868\u793a\u6ca1\u6709\u64a4\u9500\u7684\u8def\u7531\u3002<\/li>\n
            • Total path attribute length\uff1a\u8def\u5f84\u5c5e\u6027\u5b57\u6bb5\u7684\u957f\u5ea6\uff0c\u4ee5Byte\u4e3a\u5355\u4f4d\u3002\u5982\u679c\u4e3a0\u5219\u8bf4\u660e\u6ca1\u6709Path Attributes \u5b57\u6bb5\u3002<\/li>\n<\/ul>\n

              \uff083\uff09Notification\u62a5\u6587<\/p>\n

              \u5f53BGP\u68c0\u6d4b\u5230\u9519\u8bef\u72b6\u6001\u65f6\uff0c\u5c31\u4f1a\u5411\u5bf9\u7b49\u4f53\u53d1\u9001Notification\u62a5\u6587\uff0c\u544a\u77e5\u5bf9\u7aef\u9519\u8bef\uff0c\u4e4b\u540eBGP\u8fde\u63a5\u4f1a\u7acb\u5373\u4e2d\u65ad\u3002<\/p>\n

              \n
              \n
              \"\"<\/div>\n<\/div>\n<\/figure>\n
                \n
              • Error Code\u3001Error Code\uff1a\u5dee\u9519\u7801\u3001\u5dee\u9519\u5b50\u7801\uff0c\u63cf\u8ff0\u9519\u8bef\u7c7b\u578b\uff1b<\/li>\n
              • Data:\u9519\u8bef\u5185\u5bb9\uff1b<\/li>\n<\/ul>\n

                \uff084\uff09Keepalive\u62a5\u6587<\/p>\n

                \u53cc\u65b9\u76f8\u4e92\u53d1\u9001keepalive\u62a5\u6587\uff0c\u6536\u5230\u5bf9\u65b9\u7684keepalive\u62a5\u6587\u540e\u5bf9\u7b49\u4f53\u5efa\u7acb\u6210\u529f\uff0c\u540c\u65f6\u540e\u7eed\u5b9a\u671f\u53d1\u9001keepalive\u62a5\u6587\u7528\u4e8e\u4fdd\u6301\u8fde\u63a5\u3002<\/p>\n

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

                \uff085\uff09Route-refresh\u62a5\u6587<\/p>\n

                Route-refresh\u62a5\u6587\u7528\u4e8e\u8981\u6c42\u5bf9\u7b49\u4f53\u91cd\u65b0\u53d1\u9001\u6307\u5b9a\u5730\u5740\u65cf\u7684\u8def\u7531\u4fe1\u606f\uff0c\u4e00\u822c\u662f\u672c\u5730\u4fee\u6539\u4e86\u76f8\u5173\u7684\u8def\u7531\u7b56\u7565\uff0c\u8ba9\u5bf9\u65b9\u91cd\u65b0\u53d1\u9001update\u62a5\u6587\u3002<\/p>\n

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

                \u5728Open\u62a5\u6587\u534f\u5546\u65f6\u4f1a\u534f\u5546\u662f\u5426\u652f\u6301Route-refresh\uff0c\u5982\u679c\u5bf9\u7b49\u4f53\u652f\u6301Route-refresh\u80fd\u529b\uff0c\u5219\u53ef\u4ee5\u901a\u8fc7refresh bgp\u547d\u4ee4\u624b\u5de5\u5bf9BGP\u8fde\u63a5\u8fdb\u884c\u8f6f\u590d\u4f4d\uff0cBGP\u8f6f\u590d\u4f4d\u53ef\u4ee5\u5728\u4e0d\u4e2d\u65adBGP\u8fde\u63a5\u7684\u60c5\u51b5\u4e0b\u91cd\u65b0\u5237\u65b0BGP\u8def\u7531\u8868\uff0c\u5e76\u5e94\u7528\u65b0\u7684\u7b56\u7565\u3002<\/p>\n

                BGP\u72b6\u6001\u673a<\/strong><\/h3>\n

                1\u3001BGP 6\u79cd\u72b6\u6001<\/p><\/blockquote>\n

                BGP\u7684\u72b6\u6001\u6709idle\u3001connect\u3001active\u3001opensent\u3001openconfirm\u3001established\u516d\u79cd\u72b6\u6001\u3002<\/p>\n

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

                2\u3001BGP \u72b6\u6001\u53d8\u6362<\/p><\/blockquote>\n

                BGP\u7684\u72b6\u6001\u6709idle\u3001connect\u3001active\u3001opensent\u3001openconfirm\u3001established\u516d\u79cd\u72b6\u6001\u3002<\/p>\n

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

                \uff081\uff09Idle\u72b6\u6001\u662fBGP\u521d\u59cb\u72b6\u6001\u3002<\/p>\n

                \u5728Idle\u72b6\u6001\u4e0b\uff0cBGP\u62d2\u7edd\u5bf9\u7b49\u4f53\u53d1\u9001\u7684\u8fde\u63a5\u8bf7\u6c42\u3002\u53ea\u6709\u5728\u6536\u5230\u672c\u8bbe\u5907\u7684Start\u4e8b\u4ef6\u540e\uff0cBGP\u624d\u5f00\u59cb\u5c1d\u8bd5\u548c\u5176\u5b83BGP\u5bf9\u7b49\u4f53\u8fdb\u884cTCP\u8fde\u63a5\uff0c\u5e76\u8f6c\u81f3Connect\u72b6\u6001\u3002<\/p>\n

                Start\u4e8b\u4ef6\u662f\u7531\u4e00\u4e2a\u64cd\u4f5c\u8005\u914d\u7f6e\u4e00\u4e2aBGP\u8fc7\u7a0b\uff0c\u6216\u8005\u91cd\u7f6e\u4e00\u4e2a\u5df2\u7ecf\u5b58\u5728\u7684\u8fc7\u7a0b\u6216\u8005\u8def\u7531\u5668\u8f6f\u4ef6\u91cd\u7f6eBGP\u8fc7\u7a0b\u5f15\u8d77\u7684\u3002<\/p>\n

                \u4efb\u4f55\u72b6\u6001\u4e2d\u6536\u5230Notification\u62a5\u6587\u6216TCP\u62c6\u94fe\u901a\u77e5\u7b49Error\u4e8b\u4ef6\u540e\uff0cBGP\u90fd\u4f1a\u8f6c\u81f3Idle\u72b6\u6001\u3002<\/p>\n

                \uff082\uff09Connect\u72b6\u6001<\/p>\n

                \u5728Connect\u72b6\u6001\u4e0b\uff0cBGP\u542f\u52a8\u8fde\u63a5\u91cd\u4f20\u5b9a\u65f6\u5668\uff08Connect Retry\uff09\uff0c\u7b49\u5f85TCP\u5b8c\u6210\u8fde\u63a5\u3002<\/p>\n

                  \n
                • \u5982\u679cTCP\u8fde\u63a5\u6210\u529f\uff0c\u90a3\u4e48BGP\u5411\u5bf9\u7b49\u4f53\u53d1\u9001Open\u62a5\u6587\uff0c\u5e76\u8f6c\u81f3OpenSent\u72b6\u6001\u3002<\/li>\n
                • \u5982\u679cTCP\u8fde\u63a5\u5931\u8d25\uff0c\u90a3\u4e48BGP\u8f6c\u81f3Active\u72b6\u6001\u3002<\/li>\n
                • \u5982\u679c\u8fde\u63a5\u91cd\u4f20\u5b9a\u65f6\u5668\u8d85\u65f6\uff0cBGP\u4ecd\u6ca1\u6709\u6536\u5230BGP\u5bf9\u7b49\u4f53\u7684\u54cd\u5e94\uff0c\u90a3\u4e48BGP\u7ee7\u7eed\u5c1d\u8bd5\u548c\u5176\u5b83BGP\u5bf9\u7b49\u4f53\u8fdb\u884cTCP\u8fde\u63a5\uff0c\u505c\u7559\u5728Connect\u72b6\u6001\u3002<\/li>\n<\/ul>\n

                  \uff083\uff09Active\u72b6\u6001<\/p>\n

                  \u5728Active\u72b6\u6001\u4e0b\uff0cBGP\u603b\u662f\u5728\u8bd5\u56fe\u5efa\u7acbTCP\u8fde\u63a5\u3002<\/p>\n

                    \n
                  • \u5982\u679cTCP\u8fde\u63a5\u6210\u529f\uff0c\u90a3\u4e48BGP\u5411\u5bf9\u7b49\u4f53\u53d1\u9001Open\u62a5\u6587\uff0c\u5173\u95ed\u8fde\u63a5\u91cd\u4f20\u5b9a\u65f6\u5668\uff0c\u5e76\u8f6c\u81f3OpenSent\u72b6\u6001\u3002<\/li>\n
                  • \u5982\u679cTCP\u8fde\u63a5\u5931\u8d25\uff0c\u90a3\u4e48BGP\u505c\u7559\u5728Active\u72b6\u6001\u3002<\/li>\n
                  • \u5982\u679c\u8fde\u63a5\u91cd\u4f20\u5b9a\u65f6\u5668\u8d85\u65f6\uff0cBGP\u4ecd\u6ca1\u6709\u6536\u5230BGP\u5bf9\u7b49\u4f53\u7684\u54cd\u5e94\uff0c\u90a3\u4e48BGP\u8f6c\u81f3Connect\u72b6\u6001\u3002<\/li>\n<\/ul>\n

                    \uff084\uff09Opensent\u72b6\u6001\u3001openconfirm\u72b6\u6001<\/p>\n

                    TCP\u4e09\u6b21\u63e1\u624b\u5efa\u7acb\u6210\u529f\u540e\uff0c\u53d1\u9001open\u62a5\u6587\u5efa\u7acb\u5bf9\u7b49\u4f53\u5173\u7cfb\uff0c\u6b64\u65f6\u7684\u72b6\u6001\u4e3a<\/p>\n

                    opensent\u72b6\u6001\uff0c\u5f53\u6536\u5230\u5bf9\u7aef\u56de\u5e94\u7684open\u62a5\u6587\uff0c\u5e76\u4e14\u53c2\u6570\u68c0\u67e5\u65e0\u8bef\uff0c\u5728\u53d1\u9001keepalive\u62a5\u6587\u540e\u8fdb\u5165openconfirm\u72b6\u6001\u3002<\/p>\n

                    \uff085\uff09established\u72b6\u6001<\/p>\n

                    \u8fdb\u5165openconfirm\u72b6\u6001\u540e\uff0c\u6536\u5230\u5bf9\u7aef\u7684keepalive\u62a5\u6587\u540e\u8fdb\u5165established\u72b6\u6001\u3002<\/p>\n

                    BGP\u8def\u7531\u8868<\/strong><\/h3>\n

                    1\u3001BGP\u5bf9\u7b49\u4f53\u8868<\/p><\/blockquote>\n

                    \u53ef\u4ee5\u901a\u8fc7dis bgp peer \u67e5\u770bBGP\u5bf9\u7b49\u4f53\u8868\uff1b<\/p>\n

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

                    \u200d \uff081\uff09peer\uff1a\u5bf9\u7b49\u4f53\u5730\u5740<\/p>\n

                    \uff082\uff09V\uff1a\u7248\u672c\u53f7<\/p>\n

                    \uff083\uff09AS\uff1a\u5bf9\u7b49\u4f53AS\u53f7<\/p>\n

                    \uff084\uff09UP\/DOWN\uff1a\u5bf9\u7b49\u4f53\u5b58\u5728up\u6216\u8005down\u7684\u65f6\u95f4<\/p>\n

                    \uff085\uff09state\uff1a\u5bf9\u7b49\u4f53\u72b6\u6001<\/p>\n

                    \uff086\uff09prefRce\uff1a\u4ece\u8be5\u5bf9\u7b49\u4f53\u6536\u5230\u7684\u8def\u7531\u524d\u7f00\u6570\u76ee<\/p>\n

                    2\u3001BGP\u8def\u7531\u8868<\/p><\/blockquote>\n

                    \u53ef\u4ee5\u901a\u8fc7display bgp routing-table \u67e5\u770bBGP\u8def\u7531\u8868\uff1b<\/p>\n

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

                    \u5982\u679c\u5230\u8fbe\u540c\u4e00\u4e2a\u76ee\u7684\u5730\u5b58\u5728\u591a\u6761\u8def\u7531\uff0c\u5219\u5c06\u8def\u7531\u90fd\u8fdb\u884c\u7f57\u5217\uff0c\u4f46\u6bcf\u4e2a\u76ee\u7684\u5730\u53ea\u4f1a\u4f18\u9009\u4e00\u6761\u8def\u7531\u3002<\/p>\n

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

                    \u901a\u8fc7display bgp routing-table ipv4-address { mask | mask-length } \u53ef\u4ee5\u663e\u793a\u6307\u5b9aIP\u5730\u5740\/\u63a9\u7801\u957f\u5ea6\u7684\u8def\u7531\u4fe1\u606f\uff0c\u5728\u5176\u4e2d\u6709\u5173\u4e8e\u8be5BGP\u8def\u7531\u7684\u8be6\u7ec6\u4fe1\u606f\uff0c\u5982\uff1a\u8def\u7531\u59cb\u53d1\u8005\u3001\u4e0b\u4e00\u8df3\u5730\u5740\u3001\u8def\u7531\u7684\u8def\u5f84\u5c5e\u6027\u7b49\u3002<\/p>\n

                    BGP\u8def\u7531\u751f\u6210<\/strong><\/h3>\n

                    BGP\u8def\u7531\u662f\u901a\u8fc7BGP\u547d\u4ee4\u901a\u544a\u800c\u6210\u7684\uff0c\u800c\u901a\u544aBGP\u8def\u7531\u7684\u65b9\u6cd5\u6709\u4e24\u79cd\uff1anetwork\u548cImport\u3002<\/p>\n

                    \uff081\uff09network\u65b9\u5f0f\uff1a<\/p>\n

                    \u4f7f\u7528network\u547d\u4ee4\u53ef\u4ee5\u5c06\u5f53\u524d\u8bbe\u5907\u8def\u7531\u8868\u4e2d\u7684\u8def\u7531\uff08\u975eBGP\uff09\u53d1\u5e03\u5230BGP\u8def\u7531\u8868\u4e2d\u5e76\u901a\u544a\u7ed9\u90bb\u5c45\uff0c\u548cOSPF\u4e2d\u4f7f\u7528network\u547d\u4ee4\u7684\u65b9\u5f0f\u5927\u540c\u5c0f\u5f02\uff0c\u53ea\u4e0d\u8fc7\u5728BGP\u5ba3\u544a\u65f6\uff0c\u53ea\u9700\u8981\u5ba3\u544a\u7f51\u6bb5+\u63a9\u7801\u6570\u5373\u53ef\uff0c\u5982\uff1anetwork 12.12.0.0 16\u3002<\/p>\n

                    \uff082\uff09Import\u65b9\u5f0f\uff1a<\/p>\n

                    \u4f7f\u7528Import\u547d\u4ee4\u53ef\u4ee5\u5c06\u8be5\u8def\u7531\u5668\u5b66\u5230\u7684\u8def\u7531\u4fe1\u606f\u91cd\u5206\u53d1\u5230BGP\u8def\u7531\u8868\u4e2d\uff0c\u662fBGP\u5ba3\u544a\u8def\u7531\u7684\u4e00\u79cd\u65b9\u5f0f\uff0c\u53ef\u4ee5\u5f15\u5165BGP\u7684\u8def\u7531\u5305\u62ec\uff1a\u76f4\u8fde\u8def\u7531\u3001\u9759\u6001\u8def\u7531\u53ca\u52a8\u6001\u8def\u7531\u534f\u8bae\u5b66\u5230\u7684\u8def\u7531\u3002\u5176\u547d\u4ee4\u683c\u5f0f\u4e0e\u5728RIP\u4e2d\u91cd\u5206\u53d1OSPF\u5dee\u4e0d\u591a\u3002<\/p>\n

                    BGP\u901a\u544a\u539f\u5219<\/strong><\/h3>\n

                    BGP\u8bbe\u5907\u4f1a\u5c06\u6700\u4f18\u8def\u7531\u52a0\u5165BGP\u8def\u7531\u8868\uff0c\u5f62\u6210BGP\u8def\u7531\u3002<\/p>\n

                    BGP\u8bbe\u5907\u4e0e\u5bf9\u7b49\u4f53\u5efa\u7acb\u90bb\u5c45\u5173\u7cfb\u540e\uff0c\u91c7\u7528\u4ee5\u4e0b\u4ea4\u4e92\u539f\u5219\uff1a<\/p>\n

                      \n
                    • \u4eceIBGP\u5bf9\u7b49\u4f53\u83b7\u5f97\u7684BGP\u8def\u7531\uff0cBGP\u8bbe\u5907\u53ea\u4f20\u9012\u7ed9\u5b83\u7684EBGP\u5bf9\u7b49\u4f53\u3002<\/li>\n
                    • \u4eceEBGP\u5bf9\u7b49\u4f53\u83b7\u5f97\u7684BGP\u8def\u7531\uff0cBGP\u8bbe\u5907\u4f20\u9012\u7ed9\u5b83\u6240\u6709EBGP\u548cIBGP\u5bf9\u7b49\u4f53\uff08\u5bf9\u7b49\u4f53\u662fIBGP\u53ea\u80fd\u4f20\u9012\u4e00\u8df3\uff0c\u5bf9\u7b49\u4f53\u662fEBGP\u5219\u4e0d\u9650\u5236\uff09<\/li>\n
                    • \u5f53\u5b58\u5728\u591a\u6761\u5230\u8fbe\u540c\u4e00\u76ee\u7684\u5730\u5740\u7684\u6709\u6548\u8def\u7531\u65f6\uff0cBGP\u8bbe\u5907\u53ea\u5c06\u6700\u4f18\u8def\u7531\u53d1\u5e03\u7ed9\u5bf9\u7b49\u4f53<\/li>\n
                    • \u8def\u7531\u66f4\u65b0\u65f6\uff0cBGP\u8bbe\u5907\u53ea\u53d1\u9001\u66f4\u65b0\u7684BGP\u8def\u7531<\/li>\n
                    • \u6240\u6709\u5bf9\u7b49\u4f53\u53d1\u9001\u7684\u8def\u7531\uff0cBGP\u8bbe\u5907\u90fd\u4f1a\u63a5\u6536<\/li>\n
                    • \u6240\u6709EBGP\u5bf9\u7b49\u4f53\u5728\u4f20\u9012\u8fc7\u7a0b\u4e2d\u4e0b\u4e00\u8df3\u6539\u53d8<\/li>\n
                    • \u6240\u6709IBGP\u5bf9\u7b49\u4f53\u5728\u4f20\u9012\u8fc7\u7a0b\u4e2d\u4e0b\u4e00\u8df3\u4e0d\u53d8\uff08\u9700\u8981\u7279\u522b\u6ce8\u610f\uff09<\/li>\n
                    • \u9ed8\u8ba4EBGP\u4f20\u9012\u65f6 TTL\u503c\u4e3a1\uff08\u9700\u8981\u7279\u522b\u6ce8\u610f\uff09<\/li>\n
                    • \u9ed8\u8ba4IBGP\u4f20\u9012\u65f6 TTL\u503c\u4e3a255<\/li>\n<\/ul>\n

                      —END—<\/strong><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

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