{"id":9851,"date":"2022-05-17T18:13:01","date_gmt":"2022-05-18T01:13:01","guid":{"rendered":"https:\/\/www.xh86.me\/?p=9851"},"modified":"2022-05-17T18:13:01","modified_gmt":"2022-05-18T01:13:01","slug":"%e7%bd%91%e5%b7%a5%e8%b7%af%e7%94%b1%e5%9f%ba%e7%a1%80%ef%bc%886%ef%bc%89bgp%e5%8d%8f%e8%ae%ae","status":"publish","type":"post","link":"https:\/\/www.xh86.me\/?p=9851","title":{"rendered":"\u7f51\u5de5\u8def\u7531\u57fa\u7840\uff086\uff09BGP\u534f\u8bae"},"content":{"rendered":"
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\u4f5c\u4e3a\u8fd0\u884c\u5168\u7403\u4e92\u8054\u7f51\u7684\u8def\u7531\u534f\u8bae\uff0c\u8fb9\u754c\u7f51\u5173\u534f\u8bae(BGP)\u662f\u5e2e\u52a9\u4f01\u4e1a\u4e86\u89e3\u5ba2\u6237\u5982\u4f55\u4e0e\u5176\u8054\u7cfb\u7684\u5173\u952e\u90e8\u5206\u3002<\/span><\/p>\n

\n

\u5982\u679c\u60f3\u4e86\u89e3\u6570\u5b57\u4f53\u9a8c\u4ea4\u4ed8\uff0c\u90a3\u4e48\u5fc5\u987b\u4e86\u89e3\u5168\u7403\u4e92\u8054\u7f51\uff0c\u5982\u679c\u4f01\u4e1a\u6253\u7b97\u5bf9\u901a\u8fc7\u4e92\u8054\u7f51\u63d0\u4f9b\u6216\u6d88\u8d39\u7684\u5173\u952e\u4e1a\u52a1\u5e94\u7528\u6216\u670d\u52a1\u63d0\u4f9b\u8fd0\u8425\u6d1e\u5bdf\uff0c\u90a3\u4e48\u8fb9\u754c\u7f51\u5173\u534f\u8bae(BGP)\u53ef\u89c1\u6027\u975e\u5e38\u91cd\u8981\u3002<\/span><\/p>\n

\n

\u8fb9\u754c\u7f51\u5173\u534f\u8bae(BGP)\u53ef\u89c1\u6027\u6216\u76d1\u63a7\u5b58\u5728\u4e00\u7cfb\u5217\u4e0d\u540c\u7684\u58f0\u660e\uff0c\u8fd9\u4e9b\u672f\u8bed\u672c\u8eab\u975e\u5e38\u6a21\u7cca\u3002<\/span><\/p>\n

\n

\u56e0\u6b64\uff0c\u4e86\u89e3\u5b58\u5728\u54ea\u79cd\u7c7b\u578b\u7684\u8fb9\u754c\u7f51\u5173\u534f\u8bae(BGP)\u76d1\u63a7\u4ee5\u53ca\u5982\u4f55\u533a\u5206\u5b83\u4eec\uff0c\u4ee5\u53ca\u9700\u8981\u67e5\u627e\u54ea\u4e9b\u5173\u952e\u529f\u80fd\u975e\u5e38\u91cd\u8981\u3002<\/span><\/p>\n

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 <\/p>\n

\n

\u8fb9\u754c\u7f51\u5173\u534f\u8bae(BGP)\u662f\u4e00\u79cd\u8def\u5f84\u5411\u91cf\u8def\u7531\u534f\u8bae\uff0c\u7b80\u5355\u5730\u8bf4\u6d89\u53ca\u4e24\u4e2a\u4e3b\u8981\u529f\u80fd\uff1a<\/span><\/p>\n

\n

\u2022\u5728\u81ea\u6cbb\u7cfb\u7edf(\u6216\u5df2\u6ce8\u518c\u53c2\u4e0e\u4e92\u8054\u7f51\u8fb9\u754c\u7f51\u5173\u534f\u8bae\u7ed3\u6784\u7684\u81ea\u6cbb\u7cfb\u7edf\u7f51\u7edc)\u4e4b\u95f4\u5efa\u7acb\u8def\u7531\u5bf9\u7b49(\u901a\u4fe1\u4f1a\u8bdd)\uff0c\u4ee5\u4fbf\u5b83\u4eec\u53ef\u4ee5\u5c06\u8def\u7531\u4fe1\u606f\u4ea4\u6362\u5230\u5404\u79cd\u524d\u7f00(\u7f51\u7edc\u5730\u5740)\u3002\u76ee\u524d\u670963000\u591a\u4e2a\u81ea\u6cbb\u7cfb\u7edf\u53f7\u7801(ASN)\u3002<\/span><\/p>\n

\n

\u2022\u5728\u6240\u6709\u81ea\u6cbb\u7cfb\u7edf\u4e0a\u4f20\u64ad\u5230IP\u524d\u7f00\u7684\u8def\u7531\u3002\u8def\u7531\u4e0d\u662f\u901a\u8fc7\u5355\u4e2a\u8def\u7531\u5668\u7684\u8def\u5f84\uff0c\u800c\u662f\u901a\u8fc7\u81ea\u6cbb\u7cfb\u7edf\u7684\u8def\u5f84\u3002\u56e0\u6b64\uff0c\u5f53\u4eba\u4eec\u67e5\u770b\u8fb9\u754c\u7f51\u5173\u534f\u8bae(BGP)\u8def\u7531\u66f4\u65b0\u6d88\u606f\u65f6\uff0c\u4eba\u4eec\u5c06\u770b\u5230\u4e00\u7cfb\u5217\u81ea\u6cbb\u7cfb\u7edf\u53f7\u7801(ASN)\uff0c\u8fd9\u4e9b\u81ea\u6cbb\u7cfb\u7edf\u53f7\u7801(ASN)\u5f62\u6210AS-PATH\uff0c\u5bf9\u5e94\u4e8e\u7279\u5b9a\u524d\u7f00\u3002<\/span><\/p>\n

\n

\u8fb9\u754c\u7f51\u5173\u534f\u8bae(BGP)\u8def\u7531\u66f4\u65b0\u53ef\u4ee5\u5305\u542b\u591a\u4e2aAS-PATHS\u4f5c\u4e3a\u524d\u7f00\uff0c\u4ee5\u53ca\u591a\u4e2aAS-Path\u5c5e\u6027\u3002\u76ee\u524d\uff0c\u5168\u7403\u4e92\u8054\u7f51\u7684IPv4 BGP\u8def\u7531\u8868\u5305\u542b768,385\u4e2a\u524d\u7f00\u3002<\/span><\/p>\n

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\u53ef\u89c1\u6027\u7684\u91cd\u8981\u6027<\/strong><\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/article>\n

 <\/p>\n

\n

\u6709\u4e00\u4e2a\u5173\u4e8e\u5168\u7403\u4e92\u8054\u7f51\u7684\u5047\u8bbe\uff0c\u4f46\u6709\u4e00\u4e9b\u56fd\u5bb6\u8bbe\u7f6e\u9632\u706b\u5899\uff0c\u4e5f\u5f88\u96be\u5230\u8fbe\u4efb\u4f55\u5730\u65b9\u3002\u4f46\u4e8b\u5b9e\u4e0a\uff0c\u4e92\u8054\u7f51\u6d41\u91cf\u6240\u9700\u7684\u8def\u5f84\u5c06\u6839\u636e\u5176\u6765\u6e90\u800c\u6709\u6240\u4e0d\u540c\uff0c\u5e76\u4e14\u5355\u4e2a\u8def\u7531\u4f18\u52bf\u70b9\u53ef\u4ee5\u5f15\u5165\u4e0d\u771f\u5b9e\u7684\u8def\u7531\u3002<\/span><\/p>\n

\n

\u5982\u679c\u60f3\u6e05\u695a\u4e86\u89e3\u4e92\u8054\u7f51\u8def\u7531\uff0c\u6709\u5fc5\u8981\u5904\u7406\u6765\u81ea\u4e0d\u540c\u7f51\u7edc\u670d\u52a1\u4f9b\u5e94\u5546(ISP)\u7684\u8bb8\u591a\u4e0d\u540c\u670d\u52a1\uff0c\u4ee5\u83b7\u5f97\u5168\u7403\u53ef\u89c1\u6027\u3002<\/span><\/p>\n

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 <\/p>\n

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\u8fb9\u754c\u7f51\u5173\u534f\u8bae(BGP)\u7684\u76d1\u63a7\u65e5\u76ca\u666e\u53ca<\/strong><\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/article>\n

 <\/p>\n

\n

\u4e86\u89e3\u5168\u7403\u4e92\u8054\u7f51\u6027\u80fd\u5bf9\u4e8e\u6709\u6548\u7684\u7f51\u7edc\u6027\u80fd\u76d1\u63a7(NPM)\u548c\u6570\u5b57\u4f53\u9a8c\u76d1\u63a7(DEM)\u81f3\u5173\u91cd\u8981\uff0c\u4e0e\u51e0\u5e74\u524d\u5f62\u6210\u9c9c\u660e\u5bf9\u6bd4\u7684\u662f\uff0c\u8fb9\u754c\u7f51\u5173\u534f\u8bae(BGP)\u76d1\u63a7\u6b63\u65e5\u76ca\u666e\u53ca\u3002<\/span><\/p>\n

\n

\u4ee5\u524d\u8bb8\u591a\u7f51\u7edc\u6027\u80fd\u76d1\u63a7(NPM)\u4f9b\u5e94\u5546\u6216\u8005\u8868\u793a\u53cd\u5bf9\uff0c\u6216\u8005\u5ffd\u7565\u5b83\u7684\u5b58\u5728\u3002<\/span><\/p>\n

\n

\u4f46\u968f\u7740\u4e91\u8ba1\u7b97\u7684\u8fc5\u901f\u666e\u53ca\uff0c\u7528\u4e8e\u6784\u5efa\u5e94\u7528\u548c\u670d\u52a1\uff0c\u63d0\u4f9b\u5ba2\u6237\u6570\u5b57\u4f53\u9a8c\uff0c\u6d88\u8d39SaaS\uff0c\u4ee5\u53caWAN\u7684\u73b0\u4ee3\u5316\uff0c\u8fb9\u754c\u7f51\u5173\u534f\u8bae(BGP)\u76d1\u63a7\u7684\u5fc5\u8981\u6027\u5df2\u7ecf\u53d8\u5f97\u4e0d\u53ef\u5ffd\u89c6\u3002<\/span><\/p>\n

\n

\u5168\u7403\u8fde\u63a5\u6027\u662f\u4efb\u4f55\u5177\u6709\u7ade\u4e89\u6027\u6570\u5b57\u7ec4\u7ec7\u7684\u76ee\u6807\uff0c\u8fd9\u610f\u5473\u7740\u8fd9\u4e9b\u4f01\u4e1a\u8fd8\u5fc5\u987b\u5efa\u7acb\u57df\u95f4\u8def\u7531\u7684\u4e13\u4e1a\u77e5\u8bc6\uff0c\u4e0e\u5185\u90e8\u8def\u7531\u7b56\u7565\u3001\u8fb9\u754c\u7f51\u5173\u534f\u8bae(BGP)\u7b56\u7565\u548c\u7ba1\u7406\u7f51\u7edc\u670d\u52a1\u4f9b\u5e94\u5546(ISP)\u7684\u590d\u6742\u4ea4\u4e92\u3002<\/span><\/p>\n

\n

\u5373\u4fbf\u662f\u90a3\u4e9b\u5bf9\u6b64\u6301\u6000\u7591\u6001\u5ea6\u7684\u4f9b\u5e94\u5546\u4e5f\u5df2\u7ecf\u8f6c\u5411\u4e86\u8fb9\u754c\u7f51\u5173\u534f\u8bae(BGP)\u7684\u53ef\u89c1\u6027\u3002<\/span><\/p>\n

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 <\/p>\n

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\u5173\u952e\u80fd\u529b<\/strong><\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/article>\n

 <\/p>\n

\n

\u5728\u6df1\u5165\u7814\u7a76\u53ef\u7528\u7684\u4e0d\u540c\u7c7b\u578b\u7684\u8fb9\u754c\u7f51\u5173\u534f\u8bae(BGP)\u76d1\u63a7\u4ea7\u54c1\u4e4b\u524d\uff0c\u6240\u6709\u8fd9\u4e9b\u4ea7\u54c1\u90fd\u63d0\u4f9b\u4e86\u5bf9\u5168\u7403\u4e92\u8054\u7f51\u8def\u7531\u884c\u4e3a\u7684\u4e0d\u540c\u7a0b\u5ea6\u7684\u6d1e\u5bdf\uff0c\u4e86\u89e3\u5bfb\u627e\u652f\u6301\u6570\u5b57\u4f53\u9a8c\u76d1\u63a7(DEM)\u7528\u4f8b\u7684\u5173\u952e\u529f\u80fd\u662f\u6709\u5e2e\u52a9\u7684\u3002<\/span><\/p>\n

\n

\u4ee5\u4e0b\u662f\u65f6\u95f4\u5e8f\u5217\u5386\u53f2\u8bb0\u5f55\u6240\u9700\u7684\u4e00\u4e9b\u6307\u6807\u548c\u53ef\u89c6\u5316\uff1a<\/span><\/p>\n

\n

(1)\u72ec\u7acb\u7684AS-PATH\u53ef\u89c6\u5316\uff0c\u4f8b\u5982\uff0c\u94fe\u63a5\u5230\u9488\u5bf9\u5e94\u7528\u7a0b\u5e8f\u6216\u670d\u52a1URL\u7684\u66f4\u9ad8\u7ea7\u522b\u76d1\u89c6<\/span><\/p>\n

\n

\u2022\u81ea\u52a8\u68c0\u6d4b\u4e0e\u76d1\u89c6\u4e0e\u8be5URL\u7684\u6d4b\u8bd5\u8fde\u63a5\u76f8\u5173\u7684\u6240\u6709\u524d\u7f00<\/span><\/p>\n

\n

(2)\u5ea6\u91cf\u6807\u51c6\uff1a<\/span><\/p>\n

\n

\u2022\u524d\u7f00\u8def\u5f84\u66f4\u6539<\/span><\/p>\n

\n

\u2022\u524d\u7f00\u53ef\u8fbe\u6027<\/span><\/p>\n

\n

\u2022\u524d\u7f00\u66f4\u65b0<\/span><\/p>\n

\n

(3)\u8de8\u5c42\u76f8\u5173\u6027<\/span><\/p>\n

\n

\u2022\u8fb9\u754c\u7f51\u5173\u534f\u8bae(BGP)\u8def\u7531\u6570\u636e\u5e94\u4e0e\u5176\u4ed6\u6570\u636e\u5c42\u65f6\u95f4\u5e8f\u5217\u76f8\u5173\uff0c\u5305\u62ec\u7f51\u7edc\u5c42\u8def\u5f84\u3001\u7aef\u5230\u7aef\u7f51\u7edc\u6027\u80fd\u6307\u6807(\u6570\u636e\u5305\u4e22\u5931\u3001\u5ef6\u8fdf\u3001\u6296\u52a8)\u548c\u5e94\u7528\u5c42\u6307\u6807(\u54cd\u5e94\u65f6\u95f4\u548c\u9875\u9762\u8d1f\u8f7d)\u3002<\/span><\/p>\n

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 <\/p>\n

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\u8fb9\u754c\u7f51\u5173\u534f\u8bae(BGP)\u76d1\u63a7\uff1a\u4e94\u79cd\u6267\u884c\u7c7b\u578b<\/strong><\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/article>\n

 <\/p>\n

\n

\u4f46\u662f\uff0c\u5c3d\u7ba1\u8fb9\u754c\u7f51\u5173\u534f\u8bae(BGP)\u5177\u6709\u660e\u786e\u7684\u534f\u8bae\u5b9a\u4e49\uff0c\u4f46\u201c\u8fb9\u754c\u7f51\u5173\u534f\u8bae(BGP)\u76d1\u63a7\u201d\u4e00\u8bcd\u7684\u542b\u4e49\u53ef\u80fd\u4f1a\u6709\u6240\u4e0d\u540c\uff0c\u5177\u4f53\u53d6\u51b3\u4e8e\u8c01\u5728\u63d0\u51fa\u7d22\u8d54\u3002<\/span><\/p>\n

\n

\u4ee5\u4e0b\u662f\u5c06\u8fb9\u754c\u7f51\u5173\u534f\u8bae(BGP)\u8def\u7531\u6570\u636e\u4f5c\u4e3a\u201c\u53ef\u89c1\u6027\u201d\u63d0\u4f9b\u7684\u4e94\u79cd\u65b9\u5f0f\uff1a<\/span><\/p>\n

\n

1. \u8fb9\u754c\u7f51\u5173\u534f\u8bae(BGP)\u53ef\u89c1\u6027\u5de5\u5177\u5305\uff1a\u4e00\u4e9b\u5927\u578b\u7ec4\u7ec7\u5c06\u4f7f\u7528\u72ec\u7acb\u6267\u884c\u8fb9\u754c\u7f51\u5173\u534f\u8bae(BGP)\u524d\u7f00\u76d1\u63a7\u7684\u5f00\u6e90\u548c\u5546\u4e1a\u5de5\u5177\u3002<\/span><\/p>\n

\n

\u4f46\u662f\uff0cIT\u56e2\u961f\u5f88\u96be\u5c06\u8fd9\u4e9b\u95ee\u9898\u7528\u4e8e\u89e3\u51b3\u5e94\u7528\u7a0b\u5e8f\u548c\u670d\u52a1\u95ee\u9898\uff0c\u56e0\u4e3a\u5b83\u4eec\u901a\u5e38\u4f5c\u4e3a\u6570\u636e\u6e90\u63d0\u4f9b\u3002<\/span><\/p>\n

\n

\u5bf9\u4e8e\u6709\u610f\u4e49\u7684\u6545\u969c\u6392\u9664\u529f\u80fd\uff0cIT\u56e2\u961f\u9700\u8981\u96c6\u6210\u8be5\u6570\u636e\u5e76\u4e0e\u5806\u6808\u4e2d\u7684\u5176\u4ed6\u5de5\u5177\u6267\u884c\u81ea\u5df1\u7684\u5173\u8054\u3002<\/span><\/p>\n

\n

\u4ece\u8fd9\u4e9b\u5de5\u5177\u5305\u4e2d\u7b5b\u9009\u6570\u636e\u4e5f\u5f88\u56f0\u96be\uff0c\u56e0\u4e3a\u53ef\u4ee5\u4ece\u5168\u7403\u4e92\u8054\u7f51\u6700\u4e0d\u7a33\u5b9a\u7684\u8fb9\u7f18\u586b\u5145\u8def\u7531\u95ee\u9898\uff0c\u4ece\u800c\u4ea7\u751f\u5927\u91cf\u65e0\u7528\u7684\u566a\u97f3\u3002<\/span><\/p>\n

\n

\u867d\u7136\u8fd9\u662f\u6280\u672f\u4e0a\u5408\u6cd5\u7684\u8fb9\u754c\u7f51\u5173\u534f\u8bae(BGP)\u76d1\u63a7\uff0c\u4f46\u5bf9\u666e\u901aIT\u56e2\u961f\u6765\u8bf4\u5e76\u4e0d\u662f\u975e\u5e38\u6709\u7528\u3002<\/span><\/p>\n

\n

2.\u8f7b\u96c6\u6210\uff1a\u8be5\u9009\u9879\u6d89\u53ca\u5c06\u8fb9\u754c\u7f51\u5173\u534f\u8bae(BGP)\u8def\u7531\u5c5e\u6027\u6570\u636e\u7684\u9988\u9001\u96c6\u6210\u5230\u7f51\u7edc\u5c42\u8def\u5f84\u4e2d\uff0c\u4ee5\u589e\u5f3a\u8def\u5f84\u4fe1\u606f\u3002<\/span><\/p>\n

\n

\u4ee5\u4e0b\u5185\u5bb9\u53ef\u80fd\u6210\u4e3a\u8bed\u4e49\u95ee\u9898\uff1a<\/span><\/strong><\/p>\n

\n

\u901a\u8fc7\u5bf9\u5355\u4e2a\u8fb9\u754c\u7f51\u5173\u534f\u8bae(BGP)\u8def\u7531\u9988\u9001\u8fdb\u884c\u524d\u7f00\u67e5\u627e\uff0c\u53ef\u4ee5\u7b80\u5355\u5730\u4f7f\u7528\u5176\u6240\u5728\u7684\u81ea\u6cbb\u7cfb\u7edf\u53f7\u7801(ASN)\u7684\u540d\u79f0\u6807\u8bb0\u7b2c3\u5c42\u8def\u5f84\u4e2d\u7684\u5404\u4e2a\u8282\u70b9\u3002<\/span><\/p>\n

\n

\u4f46\u8fd9\u51e0\u4e4e\u4e0d\u80fd\u79f0\u4e3a\u201c\u8fb9\u754c\u7f51\u5173\u534f\u8bae(BGP)\u76d1\u89c6\u201d\u6216\u201c\u8fb9\u754c\u7f51\u5173\u534f\u8bae(BGP)\u53ef\u89c6\u5316\u201d\uff0c\u56e0\u4e3a\u5b83\u4e0d\u80fd\u4f7f\u7ec4\u7ec7\u53ef\u89c6\u5316\u524d\u7f00\u6216AS-PATHS\u3002<\/span><\/p>\n

\n

3. \u8fb9\u754c\u7f51\u5173\u534f\u8bae(BGP)\u6d41\u91cf\u5206\u6790\uff1a\u6b64\u65b9\u6cd5\u901a\u8fc7\u5339\u914d\u6e90IP\u548c\u76ee\u6807IP\u7684\u524d\u7f00\u6765\u589e\u5f3a\u6d41\u91cf\u6570\u636e\uff0c\u7136\u540e\u6620\u5c04\u5230\u8fd9\u4e9b\u524d\u7f00\u7684\u8fb9\u754c\u7f51\u5173\u534f\u8bae(BGP)\u5c5e\u6027\uff0c\u4ece\u800c\u5bfc\u81f4\u76d1\u63a7\u4ece\u6e90\u81ea\u6cbb\u7cfb\u7edf(AS)\u5230\u76ee\u6807\u81ea\u6cbb\u7cfb\u7edf(AS)\u7684\u6d41\u91cf\u6307\u6807\uff0c\u751a\u81f3\u901a\u8fc7\u81ea\u6cbb\u7cfb\u7edf(AS)\u4f20\u8f93\u3002<\/span><\/p>\n

\n

\u6beb\u65e0\u7591\u95ee\uff0c\u8fd9\u662f\u4e00\u4e2a\u6709\u8da3\u7684\u9009\u62e9\uff0c\u5982\u679c\u7ec4\u7ec7\u5c06\u5927\u91cf\u670d\u52a1\u6d41\u91cf\u8f6c\u79fb\u5230\u5168\u7403\u4e92\u8054\u7f51\uff0c\u5219\u975e\u5e38\u6709\u7528\u3002\u4f46\u4e0d\u662f\u76d1\u63a7\u6216\u53ef\u89c6\u5316\u8fb9\u754c\u7f51\u5173\u534f\u8bae(BGP)\u8def\u7531\u7684\u5de5\u4f5c\u65b9\u5f0f\uff0c\u800c\u662f\u4e13\u6ce8\u4e8e\u6d41\u91cf\u5206\u6790\u3002<\/span><\/p>\n

\n

4.\u7b2c\u4e09\u65b9\u5f00\u6e90\u5de5\u5177\uff1a\u6709\u4e00\u4e9b\u5916\u90e8\u5f00\u6e90\u5de5\u5177\uff0c\u5982RIPEStat BGPlay\uff0c\u4e00\u4e9b\u76d1\u63a7\u4ea7\u54c1\u94fe\u63a5\u5230\u8fd9\u4e9b\u5de5\u5177\u3002\u8fd9\u4e9b\u4f18\u70b9\u662f\u5b83\u4eec\u5177\u6709\u8fb9\u754c\u7f51\u5173\u534f\u8bae(BGP)\u524d\u7f00\u5206\u6790\u529f\u80fd\u3002<\/span><\/p>\n

\n

\u4f46\u7f3a\u70b9\u662f\u4e0d\u5141\u8bb8\u6301\u7eed\u76d1\u63a7\uff0c\u8fd9\u4e9b\u5de5\u5177\u4e3b\u8981\u63d0\u4f9b\u5feb\u7167\u89c6\u56fe\uff0c\u8be5\u5feb\u7167\u89c6\u56fe\u672a\u4e0e\u4ea7\u54c1\u5de5\u4f5c\u6d41\u7a0b\u7684\u5176\u4f59\u90e8\u5206\u96c6\u6210\uff0c\u56e0\u6b64\u5bf9\u4e8e\u4f01\u4e1a\u800c\u8a00\u5e76\u4e0d\u662f\u975e\u5e38\u6709\u7528\u3002<\/span><\/p>\n

\n

5.\u96c6\u6210\u8fb9\u754c\u7f51\u5173\u534f\u8bae(BGP)\u8def\u7531\u76d1\u63a7\uff1a\u6b64\u9009\u9879\u610f\u5473\u7740\u76f4\u63a5\u62c9\u52a8\u6536\u96c6\u7684\u5168\u5c40\u8def\u7531\u8868\u548c\u66f4\u65b0\uff0c\u5e76\u96c6\u6210\u8fb9\u754c\u7f51\u5173\u534f\u8bae(BGP)\u524d\u7f00\u76d1\u63a7\uff0c\u53ef\u8fbe\u6027\u4fe1\u606f\u4ee5\u53ca\u81ea\u6cbb\u7cfb\u7edf(AS)\u3001\u81ea\u6cbb\u7cfb\u7edf(AS)\u8def\u5f84\u3001\u8def\u5f84\u957f\u5ea6\u7b49\u7684\u53ef\u89c6\u5316\uff0c\u4ee5\u53ca\u6570\u5b57\u4f53\u9a8c\u76d1\u63a7(DEM)\u7684\u5176\u4ed6\u65b9\u9762\uff0c\u5b83\u53ef\u4ee5\u5b9e\u65f6\u63d0\u4f9b\u5e94\u7528\u548c\u670d\u52a1\u8fd0\u8425\u53ef\u89c6\u6027\u7684\u6d1e\u5bdf\u529b\u3002<\/span><\/p>\n

\n

\u8fd9\u79cd\u65b9\u6cd5\u53ef\u4ee5\u4e3a\u7ec4\u7ec7\u63d0\u4f9b\u6700\u51c6\u786e\u7684\u89c6\u89d2\uff0c\u63d0\u4f9b\u6765\u81ea\u5168\u7403\u4e92\u8054\u7f51\u4e0a\u8bb8\u591a\u70b9\u7684\u8fb9\u754c\u7f51\u5173\u534f\u8bae(BGP)\u8def\u7531\u6570\u636e\u5e76\u5229\u7528\u667a\u80fd\u7b97\u6cd5\u3002<\/span><\/p>\n

\n

 <\/p>\n

\n
\n
\n
\n
\n
<\/section>\n
\n
<\/div><\/section>\n
<\/section>\n<\/section>\n
<\/section>\n<\/section>\n
\n
BGP\u76d1\u63a7\u662f\u771f\u7684\u5417?<\/strong><\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/article>\n

 <\/p>\n

\n

\u786e\u5b9a\u7ec4\u7ec7\u662f\u5728\u67e5\u770b\u771f\u6b63\u7684\u8fb9\u754c\u7f51\u5173\u534f\u8bae(BGP)\u76d1\u63a7\u8fd8\u662f\u4e0d\u592a\u6709\u7528\u7684\u526f\u672c\u7684\u5feb\u901f\u5165\u4fb5\u662f\u641c\u7d22\u4ea7\u54c1\u6216\u4f9b\u5e94\u5546\u540d\u79f0\uff0c\u52a0\u4e0a\u201c\u8fb9\u754c\u7f51\u5173\u534f\u8bae(BGP)\u201d\u548c\u201c\u524d\u7f00\u201d\u5e76\u6bd4\u8f83\u7ed3\u679c\u3002<\/span><\/p>\n

\n

\u8fd9\u5c06\u5f88\u5feb\u63ed\u793a\u51fa\u8c01\u80fd\u52a0\u5feb\u901f\u5ea6\uff0c\u5e76\u63d0\u51fa\u4e0e\u6570\u5b57\u4f53\u9a8c\u4ea4\u4ed8\u76f8\u5173\u7684\u771f\u5b9e\u8fb9\u754c\u7f51\u5173\u534f\u8bae(BGP)\u95ee\u9898;\u8c01\u53ef\u4ee5\u63d0\u4f9b\u6709\u5173\u8fb9\u754c\u7f51\u5173\u534f\u8bae(BGP)\u8def\u7531\u548c\u4e92\u8054\u7f51\u7684\u6709\u7528\u89c1\u89e3\uff0c\u4ee5\u5e2e\u52a9\u7ec4\u7ec7\u7406\u89e3\u5176\u6570\u5b57\u4f53\u9a8c\u4ea4\u4ed8\u3002<\/span><\/p>\n

\n

\n
\n
\n
\n
<\/section>\n
\n
<\/div><\/section>\n
<\/section>\n<\/section>\n
<\/section>\n<\/section>\n
\n
BGP40\u95ee<\/strong><\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n

\n

\u5982\u4f55\u4f7f\u7528\u73af\u56de\u5730\u5740\u914d\u7f6e BGP\uff1f<\/strong><\/span><\/p>\n

\n

\u4f7f\u7528\u73af\u56de\u63a5\u53e3\u53ef\u786e\u4fdd\u90bb\u5c45\u5904\u4e8e\u6d3b\u52a8\u72b6\u6001\u5e76\u4e14\u4e0d\u53d7\u53d1\u751f\u6545\u969c\u7684\u786c\u4ef6\u5f71\u54cd\u3002\u00a0<\/span><\/p>\n

\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u5982BGP \u5efa\u7acb\u4e86 BGP \u5bf9\u7b49\u4f1a\u8bdd\uff0c\u5b83\u4f1a\u4f7f\u7528\u5728\u76f4\u63a5\u8fde\u63a5\u5230 BGP \u5bf9\u7b49\u4f53\u7684\u7269\u7406\u63a5\u53e3\u4e0a \u914d\u7f6e\u7684 IP \u5730\u5740\u4f5c\u4e3a\u6e90\u5730\u5740\u3002\u53d1\u51fa neighbor <ip \u5730\u5740> update-source <\u63a5\u53e3>\u00a0\u547d\u4ee4\u4ee5\u66f4\u6539\u6b64\u884c\u4e3a\uff0c\u5e76\u914d\u7f6e BGP \u4ee5\u544a\u4e4b\u8def\u7531\u5668\u4f7f\u7528\u73af\u56de\u5730\u5740\u4f5c\u4e3a\u6e90\u5730\u5740\u5efa\u7acb\u5bf9\u7b49\u4f1a\u8bdd\u3002<\/span><\/p>\n

\n

\u5f53\u4e00\u4e9b\u6216\u6240\u6709\u5c5e\u6027\u5e94\u7528\u4e8e BGP \u4e2d\u7684\u4e00\u4e2a\u90bb\u5c45\u65f6\uff0c\u5c5e\u6027\u7684\u9996\u9009\u987a\u5e8f\u00a0\u662f\u4ec0\u4e48\uff1f<\/span><\/strong><\/p>\n

\n

\u6839\u636e\u5c5e\u6027\u662f\u5e94\u7528\u4e8e\u5165\u7ad9\u66f4\u65b0\u8fd8\u662f\u51fa\u7ad9\u66f4\u65b0\uff0c\u4f18\u5148\u7ea7\u987a\u5e8f\u6709\u6240\u4e0d\u540c\u3002\u5bf9\u4e8e\u5165\u7ad9\u66f4\u65b0\uff0c\u4f18\u5148\u7ea7\u987a\u5e8f\u662f\uff1a\u00a0<\/span><\/p>\n

1.\u00a0route-map<\/span><\/p>\n

2.\u00a0filter-list<\/span><\/p>\n

3.\u00a0prefix-list\u3001distribute-list<\/span><\/p>\n

\u5bf9\u4e8e\u51fa\u7ad9\u66f4\u65b0\uff0c\u4f18\u5148\u7ea7\u987a\u5e8f\u662f\uff1a\u00a0<\/span><\/p>\n

1.\u00a0filter-list<\/span><\/p>\n

2.\u00a0route-map|unsuppress\u00a0MAP<\/span><\/p>\n

3.\u00a0advertise-map\u00a0(\u6761\u4ef6\u901a\u544a)<\/span><\/p>\n

4.\u00a0\u524d\u7f00\u5217\u8868|distribute-list<\/span><\/p>\n

5.\u00a0ORF\u524d\u7f00\u5217\u8868(\u524d\u7f00\u5217\u8868\u90bb\u5c45\u53d1\u9001\u6211\u4eec)<\/span><\/p>\n

\u6ce8\u610f\uff1a\u5c5e\u6027 prefix-list \u548c distribute-list \u4e92\u76f8\u6392\u65a5\uff0c\u53ea\u6709\u4e00\u4e2a\u547d\u4ee4\uff08neighbor prefix-list \u6216<\/span><\/p>\n

neighbor distribute-list\uff09\u53ef\u5e94\u7528\u4e8e\u7279\u5b9a\u90bb\u5c45\u7684\u6bcf\u4e2a\u5165\u7ad9\u65b9\u5411\u6216\u51fa\u7ad9\u65b9\u5411\u3002<\/span><\/p>\n

\n

show ip bgp \u547d\u4ee4\u8f93\u51fa\u4e2d\u7684\u4e0b\u4e00\u8df3\u00a00.0.0.0\u00a0\u6709\u4ec0\u4e48\u542b\u4e49\uff1f<\/span><\/strong><\/span><\/p>\n

\n

BGP \u8868\u4e2d\u4e0b\u4e00\u8df3\u5730\u5740\u4e3a\u00a00.0.0.0\u00a0\u7684\u7f51\u7edc\u8868\u793a\u8be5\u7f51\u7edc\u662f\u901a\u8fc7\u5c06\u5185\u90e8\u7f51\u5173\u534f\u8bae\u00a0(IGP)\u00a0\u91cd\u5206\u914d\u5230 BGP \u800c\u00a0\u5728\u672c\u5730\u521b\u5efa\u7684\uff0c\u6216\u662f\u901a\u8fc7 BGP \u914d\u7f6e\u4e2d\u7684 network \u6216 aggregate \u547d\u4ee4\u521b\u5efa\u7684\u3002<\/span><\/p>\n

\n

\u6709\u54ea\u4e9b\u4f17\u6240\u5468\u77e5\u7684\u793e\u533a\u5177\u6709 BGP \u793e\u533a\u5c5e\u6027\uff1f\u00a0<\/span><\/strong><\/p>\n

\n

\u793e\u533a\u5c5e\u6027\u662f\u4e00\u79cd\u53ef\u4f20\u9012\u7684\u53ef\u9009\u5c5e\u6027\uff0c\u65e8\u5728\u5bf9\u67d0\u4e9b\u793e\u533a\u4e2d\u7684\u76ee\u6807\u8fdb\u884c\u5206\u7ec4\u5e76\u5e94\u7528\u67d0\u4e9b\u7b56\u7565\uff08\u4f8b\u5982\u63a5\u53d7\u3001\u8bbe\u7f6e\u4f18\u5148\u7ea7\u3001\u91cd\u5206\u914d\uff09\u3002\u6b64\u8868\u663e\u793a\u8457\u540d\u7684BGP\u56e2\u4f53\u3002<\/span><\/p>\n

\n

<\/div>\u00a0<\/span><\/p>\n

\n

\u53ef\u91c7\u7528\u54ea\u4e9b\u683c\u5f0f\u914d\u7f6e BGP \u793e\u533a\u5c5e\u6027\uff1f<\/span><\/strong><\/p>\n

\n

\u5728 Cisco IOS\u00ae\u00a0\u8f6f\u4ef6 12.0\u00a0\u7248\u53ca\u66f4\u9ad8\u7248\u672c\u4e2d\uff0c\u53ef\u4ee5\u4e09\u79cd\u4e0d\u540c\u7684\u683c\u5f0f\uff08\u5373\uff0c\u5341\u8fdb\u5236\u3001\u5341\u516d\u8fdb\u5236\u548c AA:NN\uff09\u914d\u7f6e\u793e\u533aNN.\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c Cisco IOS\u4f7f\u7528\u66f4\u65e7\u7684\u5341\u8fdb\u5236\u5f62\u5f0f\u3002\u8981\u4ee5 AA:NN\uff0c\u7b2c\u4e00\u90e8\u5206\u662f AS\u7f16\u53f7\uff0c\u5e76\u4e14\u7b2c\u4e8c\u90e8\u5206\u662f2\u5b57\u8282\u7f16\u53f7\uff0c\u53d1\u51faip bgp-community new-format global configuration\u547d\u4ee4\u3002<\/span><\/p>\n

\n

\u6ce8\u610f\uff1aBGP community\u5c5e\u6027\u662f\u53ef\u4ee5\u5206\u914d\u5230\u4e00\u4e2a\u7279\u5b9a\u524d\u7f00\u548c\u901a\u544a\u5bf9\u5176\u4ed6\u90bb\u5c45\u7684\u6570\u503c(\u4efb\u610f)\u3002\u5c3d\u7ba1\u00a0\u793e\u533a\u5c5e\u6027\u53ef\u4ee5\u91c7\u7528\u5341\u8fdb\u5236\u3001\u5341\u516d\u8fdb\u5236\u6216 AA:NN \u683c\u5f0f\u8868\u793a\uff0c\u4f46\u5b83\u4ecd\u7136\u662f 32 \u4f4d\u6570\u5b57\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u4e09\u4e2a\u914d\u7f6e\u547d\u4ee4\u6307\u5b9a\u4e86\u793e\u533a 30:20\uff08AS 30\uff0c20\u00a0\u53f7\uff09\uff1a
<\/span><\/p>\n

\n

\u56fa\u5b9a\u793e\u533a30:20\u00a0<\/span><\/p>\n

\u56fa\u5b9a\u793e\u533a0x1E0014\u00a0<\/span><\/p>\n

\u56fa\u5b9a\u793e\u533a1966100<\/span><\/p>\n

\u4e0d\u7ba1\u60a8\u4f7f\u7528\u54ea\u4e2a\u547d\u4ee4\uff0c\u5728\u8def\u7531\u5668\u914d\u7f6e\u6587\u4ef6\u548c BGP \u8868\u4e2d\u663e\u793a\u7684\u793e\u533a\u90fd\u662f 30:20\u3002\u00a0<\/span><\/p>\n

\n

\u5728\u542f\u7528\u81ea\u52a8\u6c47\u603b\u6216\u7981\u7528\u81ea\u52a8\u6c47\u603b\u8fd9\u4e24\u79cd\u60c5\u51b5\u4e0b\uff0cBGP \u7684\u884c\u4e3a\u6709\u4f55\u4e0d\u540c\uff1f<\/span><\/strong><\/p>\n

\n

\u81ea\u52a8\u6c47\u603b\u884c\u4e3a\u5728\u5404\u4e2a Cisco IOS \u8f6f\u4ef6\u7248\u672c\u4e2d\u5747\u5df2\u53d1\u751f\u53d8\u5316\u3002\u6700\u521d\uff0c\u9ed8\u8ba4\u4e3a\u542f\u7528\u81ea\u52a8\u6c47\u603b\u3002\u7136\u800c\uff0c\u5bf9\u4e8eCisco Bug ID CSCdu81680\uff08\u4ec5\u9650\u6ce8\u518c\u7528\u6237\uff09\uff0c\u6b64\u884c\u4e3a\u5df2\u53d1\u751f\u53d8\u5316\u3002\u5728\u6700\u65b0\u7684Cisco IOS \u4e2d\uff0c\u9ed8 \u8ba4\u4e3a\u7981\u7528\u81ea\u52a8\u6c47\u603b\u3002\u542f\u7528\u81ea\u52a8\u6c47\u603b\u540e\uff0c\u5b83\u4f1a\u5728 BGP \u7f51\u7edc\u7684\u6709\u7c7b\u8fb9\u754c\u8303\u56f4\u5185\u6c47\u603b\u5728\u672c\u5730\u521b\u5efa\u7684 BGP \u7f51\u7edc\u3002<\/span><\/p>\n

\n

\u9ed8\u8ba4\u60c5\u51b5\u4e0bAuto-summary\u5728\u65e7\u6709\u7248\u672c\u53ea\u542f\u7528\u3002\u7981\u7528\u81ea\u52a8\u6c47\u603b\u540e\uff0c\u5728\u672c\u5730\u5f15\u5165\u5230 BGP \u8868\u4e2d\u7684\u8def\u7531\u4e0d\u4f1a\u5728\u5176\u6709\u7c7b\u8fb9\u754c\u8303\u56f4\u5185\u8fdb\u884c\u6c47\u603b\u3002\u5982\u679c\u8def\u7531\u8868\u4e2d\u5b58\u5728\u5b50\u7f51\u5e76\u4e14\u6ee1\u8db3\u4ee5\u4e0b\u4e09\u4e2a\u6761\u4ef6\uff0c\u672c\u5730\u8def\u7531 \u8868\u4e2d\u7684\u6709\u7c7b\u7f51\u7edc\u7684\u6240\u6709\u5b50\u7f51\u5c06\u63d0\u793a BGP \u5c06\u6709\u7c7b\u7f51\u7edc\u5b89\u88c5BGP\u8868\u4e2d\u3002<\/span><\/p>\n

\n

\u25cf\u00a0\u00a0\u00a0\u00a0\u8def\u7531\u8868\u4e2d\u7f51\u7edc\u7684\u6709\u7c7b\u7f51\u7edc\u8bed\u53e5
<\/span><\/p>\n

\u25cf\u00a0\u00a0\u00a0\u00a0\u8be5\u7f51\u7edc\u8bed\u53e5\u7684\u6709\u7c7b\u63a9\u7801<\/span><\/p>\n

\u25cf\u00a0\u00a0\u00a0\u00a0\u5df2\u542f\u7528\u81ea\u52a8\u6c47\u603b<\/span><\/p>\n

\n

\u4f8b\u5982\uff0c\u5982\u679c\u8def\u7531\u8868\u4e2d\u7684\u5b50\u7f51\u4e3a\u00a075.75.75.0\uff08\u63a9\u7801\u00a0255.255.255.0\uff09\uff0c\u60a8\u5728\u00a0router\u00a0bgp\u00a0\u547d\u4ee4\u4e0b\u914d\u7f6e<\/span><\/p>\n

network 75.0.0.0\u00a0\uff0c\u5e76\u4e14\u542f\u7528\u81ea\u52a8\u6c47\u603b\uff0c\u5219 BGP\u4f1a\u5728 BGP \u8868\u4e2d\u5f15\u5165\u6709\u7c7b\u7f51\u7edc 75.0.0.0\uff08\u63a9\u7801255.0.0.0\uff09\u3002<\/span><\/p>\n

\u5982\u679c\u4e0a\u8ff0\u4e09\u4e2a\u6761\u4ef6\u90fd\u4e0d\u7b26\u5408\uff0c\u9664\u975e\u5728\u672c\u5730\u8def\u7531\u8868\u4e2d\u6709\u5b8c\u5168\u5339\u914d\u9879\uff0c\u5426\u5219 BGP \u4e0d\u4f1a\u5728 BGP \u8868\u4e2d\u5b89\u88c5\u4efb\u4f55\u6761\u76ee\u3002
<\/span><\/p>\n

\n

\u6ce8\u610f\uff1a\u5982\u679c\u6267\u884c BGP \u7684 AS\u4e0d\u5177\u5907\u5b8c\u5168\u6709\u7c7b\u7f51\u7edc\uff0cCisco \u5efa\u8bae\u60a8\u5728 router bgp \u4e0b\u53d1\u51fa no auto-summary \u547d\u4ee4\uff0c\u4ee5\u7981\u7528\u81ea\u52a8\u6c47\u603b\u3002
<\/span><\/p>\n

\n

\u5982\u4f55\u9a8c\u8bc1 BGP \u8def\u7531\u5668\u662f\u5426\u5ba3\u5e03\u5176 BGP \u7f51\u7edc\u5e76\u5c06\u8fd9\u4e9b\u7f51\u7edc\u4f20\u64ad\u5230 \u5168\u5c40 BGP \u7f51\u683c\uff1f\u00a0<\/span><\/strong><\/span><\/p>\n

\n

\u8bf7\u4f7f\u7528\u8fd9\u4e9b\u547d\u4ee4\u4e3a\u4e86\u68c0\u67e5IP\u5757\u662f\u5426\u76f4\u63a5\u5730\u5ba3\u5e03\u5bf9\u8fde\u63a5\u7684ISP\uff1a\u00a0<\/span><\/p>\n

\u25cf\u00a0\u00a0\u00a0 show \u00a0ip bgp neighbors [\u5730\u5740] advertised-routes \u547d\u4ee4\u663e\u793a\u54ea\u4e9b\u6d88\u606f\u6b63\u88ab\u53d1\u9001\u3002<\/span><\/p>\n

\u25cf\u00a0\u00a0\u00a0 show \u00a0ip bgp neighbors [\u5730\u5740] routes \u547d\u4ee4\u663e\u793a\u54ea\u4e9b\u6d88\u606f\u6b63\u88ab\u63a5\u6536\u3002<\/span><\/p>\n

\u6ce8\u610f\uff1ashow ip bgp neighbors [\u5730\u5740] advertise-routes \u547d\u4ee4\u4e0d\u8003\u8651\u53ef\u80fd\u5df2\u5e94\u7528\u7684\u4efb\u4f55\u51fa\u7ad9\u7b56\u7565\u3002\u5728\u672a\u6765\u7684 Cisco IOS \u8f6f\u4ef6\u7248\u672c\u4e2d\uff0c\u4f1a\u66f4\u6539\u547d\u4ee4\u8f93\u51fa\u4ee5\u53cd\u6620\u51fa\u7ad9\u7b56\u7565\u3002\u5982\u679c\u6709\u4e24\u4e2a\u53ef\u9009\u8def\u5f84\u6307\u5411\u76ee\u6807\uff0cBGP\u603b\u662f\u4f7f\u7528\u6700\u4f73\u8def\u7531\u8fdb\u884c\u901a\u77e5\u3002<\/span><\/p>\n

\u4e3a\u4e86\u9a8c\u8bc1 IP \u5757\u5982\u4f55\u901a\u8fc7\u76f4\u63a5\u8fde\u63a5\u7684 ISP \u4f20\u64ad\u5230\u5168\u5c40 BGP \u7f51\u683c\uff0c\u8bf7\u767b\u5f55\u5230 Internet \u4e0a\u7684\u8def\u7531\u670d\u00a0\u52a1\u5668\uff0c\u5e76\u4e14\u5728\u8be5\u8def\u7531\u670d\u52a1\u5668\u4e2d\u5bfb\u627e\u524d\u7f00\u7684 BGP \u6761\u76ee\u3002
<\/span><\/p>\n

\n

\u4f55\u65f6\u4ee5\u53ca\u5982\u4f55\u91cd\u7f6e BGP \u4f1a\u8bdd\uff1f<\/span><\/strong><\/span><\/p>\n

\n

\u5728\u66f4\u6539 BGP \u4f1a\u8bdd\u7684\u5165\u7ad9\/\u51fa\u7ad9\u7b56\u7565\u65f6\u6e05\u9664\u8be5\u4f1a\u8bdd\u3002\u53d1\u51fa clear ip bgp x.x.x.x soft out \u547d\u4ee4\u53ef\u6e05\u9664BGP\u4f1a\u8bdd\uff0c\u4ee5\u4f7f\u51fa\u7ad9\u7b56\u7565\u66f4\u6539\u751f\u6548\u3002\u53d1\u51fax.x.x.x\u547d\u4ee4\u7684clearip bgp\u4e3a\u4e86\u6e05\u9664BGP\u4f1a\u8bdd\u5e26\u9886 Inbound\u653f\u7b56\u66f4\u6539\u8fdb\u5165\u6548\u679c\u3002\u5982\u679c\u90bb\u5c45\u6709\u8f6f\u91cd\u65b0\u914d\u7f6e\u529f\u80fd\uff0c\u60a8\u80fd\u53d1\u51faclear ip bgp x.x.x.x\u8f6f\u5947 incommand\u3002\u5982\u679c\u8bbe\u7f6e\u4e86\u4f18\u5316\u7684\u8fb9\u7f18\u8def\u7531\u00a0(OER)\uff0c\u5219\u53ef\u4ee5\u81ea\u52a8\u6e05\u9664 BGP \u4f1a\u8bdd\u3002OER \u81ea\u52a8\u6e05\u9664\u5165\u7ad9 \u65b9\u5411\u548c\u51fa\u7ad9\u65b9\u5411\u7684 BGP \u4f1a\u8bdd\u3002\u00a0<\/span><\/p>\n

\u6ce8\u610f\uff1a\u5728 Cisco IOS \u8f6f\u4ef6 12.0\u00a0\u7248\u53ca\u66f4\u9ad8\u7248\u672c\u4e2d\uff0c\u5f15\u5165\u4e86\u4e00\u79cd\u65b0\u7684 BGP \u8f6f\u91cd\u7f6e\u589e\u5f3a\u529f\u80fd\u3002<\/span><\/p>\n

\n

\u4ec0\u4e48\u662f\u81ea\u6cbb\u7cfb\u7edf\u00a0(AS)\u00a0\u7f16\u53f7\uff0c\u5982\u4f55\u83b7\u5f97\u4e00\u4e2a\u81ea\u6cbb\u7cfb\u7edf\u7f16\u53f7\uff1f<\/span><\/strong><\/p>\n

\n

AS \u7f16\u53f7\u662f\u5168\u5c40\u552f\u4e00\u7f16\u53f7\uff0c\u7528\u4e8e\u6807\u8bc6 AS\uff0c\u5e76\u4e14\u4f7f AS \u80fd\u591f\u4ea4\u6362\u76f8\u90bb AS \u4e4b\u95f4\u7684\u5916\u90e8\u8def\u7531\u4fe1\u606f\u3002AS\u662f\u9075\u5b88\u4e00\u4e2a\u660e\u786e\u5b9a\u4e49\u7684\u8def\u7531\u7b56\u7565\u7684\u76f8\u8fde IP \u7f51\u7edc\u7ec4\u3002
<\/span><\/p>\n

\u53ef\u7528 AS \u7f16\u53f7\u662f\u6709\u9650\u7684\u3002\u56e0\u6b64\uff0c\u5224\u65ad\u54ea\u4e9b\u7ad9\u70b9\u9700\u8981\u552f\u4e00\u7684 AS \u7f16\u53f7\u800c\u54ea\u4e9b\u7ad9\u70b9\u4e0d\u9700\u8981\u552f\u4e00\u7684 AS \u7f16 \u53f7\u81f3\u5173\u91cd\u8981\u3002\u4e0d\u8981\u6c42\u552f\u4e00 AS \u7f16\u53f7\u7684\u7ad9\u70b9\u5e94\u4f7f\u7528\u4e00\u4e2a\u6216\u591a\u4e2a\u7559\u4f5c\u4e13\u7528\u7684 AS \u7f16\u53f7\uff0c\u8303\u56f4\u572864512\u5230
<\/span><\/p>\n

65535\u4e4b\u95f4\u3002\u8bf7\u8bbf\u95eeAS\u7f16\u53f7\u6ce8\u518c\u670d\u52a1\u00a0\u7f51\u7ad9\u83b7\u53d6AS\u7f16\u53f7\u3002<\/span><\/p>\n

\n

BGP \u8def\u5f84\u9009\u62e9\u6807\u51c6\u662f\u4ec0\u4e48\uff1f<\/span><\/strong><\/p>\n

\n

BGP \u8def\u5f84\u9009\u62e9\u6807\u51c6\u8bb0\u5f55\u5728 \u00a0BGP \u6700\u4f73\u8def\u5f84\u9009\u62e9\u7b97\u6cd5\u4e2d\u3002
<\/span><\/p>\n

\n

always-compare-med \u4e0e deterministic-med \u4e4b\u95f4\u6709\u4f55\u533a\u522b\uff1f<\/span><\/strong><\/p>\n

\n

\u8fd9\u4e9b\u547d\u4ee4\u4e4b\u95f4\u533a\u522b\u7684\u5b8c\u6574\u8bf4\u660e\u8bb0\u5f55\u5728 \u00a0bgp deterministic-med \u00a0\u547d\u4ee4\u4e0e bgp always-compare-med \u00a0\u547d\u4ee4\u00a0\u6709\u4f55\u533a\u522b\u4e2d\u3002
<\/span><\/p>\n

\n

\u5185\u90e8 BGP (iBGP)\u00a0\u4f1a\u8bdd\u662f\u5426\u4f1a\u4fee\u6539\u4e0b\u4e00\u8df3\uff1f<\/span><\/strong><\/p>\n

\n

iBGP \u4f1a\u8bdd\u4fdd\u5b58\u4ece eBGP \u5bf9\u7b49\u4f53\u4e2d\u83b7\u77e5\u7684\u4e0b\u4e00\u8df3\u5c5e\u6027\u3002\u8fd9\u5c31\u662f\u5b58\u5728\u6307\u5411\u4e0b\u4e00\u8df3\u7684\u5185\u90e8\u8def\u7531\u91cd\u8981\u6027\u7684 \u539f\u56e0\u3002\u5426\u5219\uff0c\u5c06\u65e0\u6cd5\u5230\u8fbe BGP \u8def\u7531\u3002<\/span><\/p>\n

\n

\u4e3a\u4e86\u786e\u4fdd\u53ef\u4ee5\u5230\u8fbe eBGP \u4e0b\u4e00\u8df3\uff0c\u8bf7\u5c06\u4e0b\u4e00\u8df3\u6240\u5c5e\u7684\u7f51\u7edc\u5305 \u542b\u5230 IGP \u4e2d\uff0c\u6216\u8005\u53d1\u51fa next-hop-self neighbor \u547d\u4ee4\uff0c\u4ee5\u5f3a\u5236\u8def\u7531\u5668\u901a\u544a\u81ea\u5df1\uff08\u800c\u4e0d\u662f\u5916\u90e8\u5bf9\u7b49\u4f53\uff09\u4f5c\u4e3a\u4e0b\u4e00\u8df3\u3002<\/span><\/p>\n

\n

\u8054\u76df\u4e4b\u95f4\u7684\u5916\u90e8 BGP (eBGP)\u00a0\u4f1a\u8bdd\u662f\u5426\u4f1a\u4fee\u6539\u4e0b\u4e00\u8df3\uff1f<\/span><\/strong><\/p>\n

\n

\u4e0d\uff0c\u8054\u76df\u5b50 AS \u4e4b\u95f4\u7684 eBGP \u4f1a\u8bdd\u4e0d\u4f1a\u4fee\u6539\u4e0b\u4e00\u8df3\u5c5e\u6027\u3002\u6240\u6709 iBGP \u89c4\u5219\u4ecd\u7136\u9002\u7528\uff0c\u4ece\u800c\u4f7f\u6574\u4e2a AS \u4f5c\u4e3a\u4e00\u4e2a\u5b9e\u4f53\u8fd0\u884c\u3002\u5ea6\u91cf\u503c\u548c\u672c\u5730\u9996\u9009\u9879\u503c\u5728\u8054\u76df eBGP\u5bf9\u7b49\u4f53\u4e2d\u4ecd\u4fdd\u6301\u4e0d\u53d8\u3002<\/span><\/p>\n

\n

\u5728\u5916\u90e8 BGP (eBGP)\u00a0\u4f1a\u8bdd\u4e2d\uff0c\u54ea\u4e2a IP \u5730\u5740\u4f1a\u4f5c\u4e3a\u4e0b\u4e00\u8df3\u53d1\u9001\uff1f<\/span><\/strong><\/p>\n

\n

\u5728 eBGP \u5bf9\u7b49\u4e92\u8054\u4e2d\uff0c\u4e0b\u4e00\u8df3\u662f\u5ba3\u5e03\u8def\u7531\u7684\u90bb\u5c45\u7684 IP \u5730\u5740\u3002\u7136\u800c\uff0c\u5f53\u5728\u591a\u8def\u8bbf\u95ee\u4ecb\u8d28\uff08\u4f8b\u5982\uff0c\u4ee5\u592a\u7f51\u6216\u5e27\u4e2d\u7ee7\uff09\u4e0a\u5ba3\u5e03\u8def\u7531\u65f6\uff0c\u4e0b\u4e00\u8df3\u901a\u5e38\u662f\u8fde\u63a5\u5230\u8be5\u4ecb\u8d28\u7684\u8def\u7531\u5668\u63a5\u53e3\u7684 IP \u5730\u5740\uff0c\u4e5f\u662f\u8def\u7531\u7684\u6e90\u53d1\u5730\u3002
<\/span><\/p>\n

\n

\u8def\u7531\u53cd\u5c04\u5668\u662f\u5426\u4f1a\u66f4\u6539\u53cd\u5c04\u7684\u524d\u7f00\u7684\u4e0b\u4e00\u8df3\u5c5e\u6027\uff1f\u00a0<\/span><\/strong><\/p>\n

\n

\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u5f53\u524d\u7f00\u7531\u8def\u7531\u53cd\u5c04\u5668\u53cd\u5c04\u65f6\uff0c\u4e0d\u4f1a\u66f4\u6539\u4e0b\u4e00\u8df3\u5c5e\u6027\u3002\u7136\u800c\uff0c\u60a8\u53ef\u4ee5\u53d1\u51fa neighbor next-hop-self \u547d\u4ee4\uff0c\u4ee5\u66f4\u6539\u4eceeBGP\u5bf9\u7b49\u4f53\u53cd\u5c04\u5230\u4efb\u4f55\u8def\u7531\u53cd\u5c04\u5668\u5ba2\u6237\u7aef\u7684\u524d\u7f00\u7684\u4e0b\u4e00\u8df3\u7684\u5c5e\u6027\u3002<\/span><\/p>\n

\n

\u600e\u6837\u624d\u80fd\u4ec5\u5728\u6211\u5931\u53bb\u4e0e\u6211\u7684\u4e3bISP\u8fde\u63a5\u65f6\u624d\u6709\u6761\u4ef6\u5730\u5411\u53e6\u4e00\u4e2aISP\u5ba3\u5e03\u524d\u7f00\u00a0\uff1f\u00a0<\/span><\/strong><\/p>\n

\n

\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0cBGP \u4f1a\u5411\u5916\u90e8\u5bf9\u7b49\u4f53\u5ba3\u5e03\u5176 BGP \u8868\u4e2d\u7684\u8def\u7531\u3002BGP \u6761\u4ef6\u5ba3\u5e03\u529f\u80fd\u63d0\u4f9b\u5bf9\u8def\u7531\u5ba3\u5e03\u7684 \u5176\u4ed6\u63a7\u5236\uff0c\u5177\u4f53\u53d6\u51b3\u4e8e BGP \u8868\u4e2d\u662f\u5426\u5b58\u5728\u5176\u4ed6\u524d\u7f00\u3002\u901a\u5e38\uff0c\u4f1a\u4f20\u64ad\u8def\u7531\uff0c\u800c\u4e0d\u7ba1\u662f\u5426\u5b58\u5728\u4e0d\u540c\u7684 \u8def\u5f84\u3002BGP \u6761\u4ef6\u5ba3\u5e03\u529f\u80fd\u4f7f\u7528non-exist-map\u548cadvertise-map configuration \u547d\u4ee4\u901a\u8fc7\u8def\u7531\u524d\u7f00\u8ddf\u8e2a\u8def\u7531\u3002\u5982\u679c non-exist-map \u547d\u4ee4\u4e2d\u4e0d\u5b58\u5728\u8def\u7531\u524d\u7f00\uff0c\u5219\u5ba3\u5e03 advertise-map \u547d\u4ee4\u6307\u5b9a\u7684\u8def\u7531\u3002<\/span><\/p>\n

\n

\u8def\u7531\u5668\u4e2d\u6709\u591a\u5927\u7684\u5185\u5b58\u7a7a\u95f4\u624d\u80fd\u4ece ISP \u63a5\u6536\u5b8c\u6574\u7684 BGP \u8def\u7531\u8868\uff1f\u00a0<\/span><\/strong><\/p>\n

\n

\u5b58\u50a8 BGP \u8def\u7531\u6240\u9700\u7684\u5185\u5b58\u91cf\u53d6\u51b3\u4e8e\u8bf8\u591a\u56e0\u7d20\uff0c\u4f8b\u5982\u8def\u7531\u5668\u3001\u53ef\u7528\u7684\u53ef\u9009\u8def\u5f84\u7684\u6570\u91cf\u3001\u8def\u7531\u8870\u51cf\u3001 \u793e\u533a\u3001\u914d\u7f6e\u7684\u6700\u5927\u8def\u5f84\u6570\u91cf\u3001BGP \u5c5e\u6027\u4ee5\u53ca VPN \u914d\u7f6e\u3002\u4e0d\u4e86\u89e3\u8fd9\u4e9b\u53c2\u6570\uff0c\u8ba1\u7b97\u5b58\u50a8\u4e00\u5b9a\u6570\u91cf\u7684 BGP \u8def\u7531\u6240\u9700\u7684\u5185\u5b58\u91cf\u662f\u5f88\u56f0\u96be\u7684\u3002Cisco \u901a\u5e38\u5efa\u8bae\u8def\u7531\u5668\u7684 RAM \u6700\u5c0f\u4e3a 512 MB\uff0c\u4ee5\u5b58\u50a8\u4e00\u4e2a BGP \u5bf9\u7b49\u4f53\u7684\u5b8c\u6574\u5168\u5c40 BGP \u8def\u7531\u8868\u3002\u7136\u800c\uff0c\u4e86\u89e3\u51cf\u5c11\u5185\u5b58\u6d88\u8017\u7684\u65b9\u6cd5\u4ee5\u53ca\u5728\u65e0\u9700\u63a5\u6536\u5b8c\u6574\u7684 Internet \u8def\u7531\u8868\u60c5\u51b5\u4e0b\u5b9e\u73b0\u6700\u4f73\u8def\u7531\u7684\u65b9\u6cd5\u81f3\u5173\u91cd\u8981\u3002<\/span><\/p>\n

\n

\u914d\u7f6e BGP \u5bf9\u7b49\u7ec4\u6709\u54ea\u4e9b\u4f18\u70b9\uff1f\u00a0<\/span><\/strong><\/p>\n

\n

\u6307\u5b9a BGP \u5bf9\u7b49\u7ec4\u7684\u4e3b\u8981\u4f18\u70b9\u662f\uff0c\u51cf\u5c11\u751f\u6210\u66f4\u65b0\u4f7f\u7528\u7684\u7cfb\u7edf\u8d44\u6e90\u91cf\uff08CPU \u548c\u5185\u5b58\uff09\u3002\u8fd8\u7b80\u5316\u4e86 BGP \u914d\u7f6e\uff0c\u56e0\u4e3a\u5b83\u53ea\u5141\u8bb8\u8def\u7531\u8868\u88ab\u68c0\u67e5\u4e00\u6b21\uff0c\u5e76\u5c06\u66f4\u65b0\u590d\u5236\u5230\u6240\u6709\u5176\u4ed6\u540c\u6b65\u5bf9\u7b49\u4f53\u7ec4\u6210\u5458\u4e2d\u3002\u8fd9\u6837\u53ef\u4ee5 \u663e\u8457\u964d\u4f4e\u8d1f\u8f7d\uff0c\u5177\u4f53\u53d6\u51b3\u4e8e\u5bf9\u7b49\u7ec4\u6210\u5458\u7684\u6570\u91cf\u3001\u8868\u4e2d\u524d\u7f00\u7684\u6570\u91cf\u3001\u901a\u544a\u7684\u524d\u7f00\u7684\u6570\u91cf\u3002Cisco \u5efa\u8bae \u60a8\u5c06\u5bf9\u7b49\u4f53\u4e0e\u76f8\u540c\u7684\u51fa\u7ad9\u5ba3\u5e03\u7b56\u7565\u7ec4\u5408\u5230\u4e00\u8d77\u3002<\/span><\/p>\n

\n

\u4e3a\u4ec0\u4e48\u4e24\u6b21\u770b\u5230\u540c\u4e00\u4e2a\u8def\u7531\u4eceBGP\u7684\u540c\u4e00\u5bf9\u7b49\u4f53\uff1f\u00a0<\/span><\/strong><\/p>\n

\n

\u4f8b\u5982\uff1a\u00a0<\/span><\/p>\n

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

\u4e24\u4e2a\u6761\u76ee\u88ab\u770b\u5230\u7684\u5f52\u7ed3\u4e8e\u914d\u7f6e\u7684\u8f6f\u91cd\u65b0\u914d\u7f6e\u3002\u975e\u9650\u5b9a\u7684\u8def\u5f84\u548c\u5df2\u4fee\u6539\u8def\u5f84\uff0c\u5728\u524d\u7f00\u7684\u8def\u5f84\u8868\u91cc\u53d6\u51b3\u4e8eInbound\u653f\u7b56\uff0c\u5982\u679c\u5141\u8bb8\uff0c\u5b58\u50a8\u3002<\/span><\/p>\n

\n

\u4ec0\u4e48\u662f\u540c\u6b65\uff1f\u5b83\u5bf9IP\u8def\u7531\u8868\u4e2d\u5b89\u88c5\u7684BGP\u8def\u7531\u6709\u4f55\u5f71\u54cd\uff1f<\/span><\/strong><\/p>\n

\n

\u5982\u679c\u60a8\u7684 AS \u5c06\u6765\u81ea\u53e6\u4e00\u4e2a AS \u7684\u6d41\u91cf\u4f20\u9012\u7ed9\u7b2c\u4e09\u4e2a AS\uff0c\u5219\u5728\u60a8\u7684 AS \u4e2d\u7684\u6240\u6709\u8def\u7531\u5668\u5747\u901a\u8fc7 IGP \u4e86\u89e3\u8be5\u8def\u7531\u4e4b\u524d\uff0cBGP \u4e0d\u5e94\u901a\u544a\u8def\u7531\u3002<\/span><\/p>\n

\n

BGP \u5728 IGP \u5728 AS \u5185\u90e8\u4f20\u64ad\u8def\u7531\u4e4b\u524d\u5c06\u4e00\u76f4\u5904\u4e8e\u7b49\u5f85\u72b6\u6001\uff0c\u4e4b\u540e\u5c06\u8be5\u8def\u7531\u901a\u544a\u7ed9\u5916\u90e8\u5bf9\u7b49\u4f53\u3002\u5982\u679c\u5df2\u542f\u7528\u540c\u6b65\u7684 BGP \u8def\u7531\u5668\u65e0\u6cd5\u9a8c\u8bc1\u5176 IGP \u4e2d\u5b58\u5728\u54ea\u4e9b\u8def \u7531\uff0c\u5219\u8be5\u8def\u7531\u5668\u65e0\u6cd5\u5c06 iBGP \u5b66\u5230\u7684\u8def\u7531\u5b89\u88c5\u5230\u5176\u8def\u7531\u8868\u4e2d\u3002\u5728 router bgp \u4e0b\u53d1\u51fa no synchronization \u547d\u4ee4\u53ef\u7981\u7528\u540c\u6b65\u3002\u8fd9\u53ef\u9632\u6b62 BGP \u9a8c\u8bc1 IGP \u4e2d\u7684 iBGP \u8def\u7531\u3002<\/span><\/p>\n

\n

\u5982\u4f55\u5728\u5411\u5916\u90e8 BGP (eBGP)\u00a0\u90bb\u5c45\u53d1\u51fa\u901a\u77e5\u7684\u524d\u7f00\u4e0a\u8bbe\u7f6e\u591a\u51fa\u53e3\u6807 \u8bc6\u00a0(MED) \u503c\uff0c\u4ee5\u4e0e\u5185\u90e8\u7f51\u5173\u534f\u8bae\u00a0(IGP)\u00a0\u7684\u4e0b\u4e00\u8df3\u5ea6\u91cf\u503c\u76f8\u5339\u914d\uff1f\u00a0<\/span><\/strong><\/p>\n

\n

set metric-type internal route-map \u914d\u7f6e\u547d\u4ee4\u4f7f BGP \u901a\u544a\u4e0e IGP \u5ea6\u91cf\u503c\uff08\u4e0e\u8def\u7531\u7684\u4e0b\u4e00\u8df3\u76f8\u5173\u8054\uff09\u76f8\u5bf9\u5e94\u7684 MED\u3002\u6b64\u547d\u4ee4\u5728 Cisco IOS \u8f6f\u4ef6 10.3 \u7248\u53ca\u66f4\u9ad8\u7248\u672c\u4e2d\u53ef\u7528\u3002<\/span><\/p>\n

\n

\u4ec0\u4e48\u662f\u9ed8\u8ba4 BGP ConnectRetry \u8ba1\u65f6\u5668\uff0c\u53ef\u4ee5\u8c03\u6574 BGP ConnectRetry \u8ba1\u65f6\u5668\u5417\uff1f\u00a0<\/span><\/strong><\/p>\n

\n

\u9ed8\u8ba4 BGP ConnectRetry \u8ba1\u65f6\u5668\u662f120\u79d2\u3002\u4ec5\u5728\u6b64\u65f6\u95f4\u540e\uff0cBGP\u8fdb\u7a0b\u624d\u8fdb\u884c\u68c0\u67e5\uff0c\u4ee5\u5224\u65ad\u662f\u5426\u5efa\u7acb\u88ab\u52a8\u7684TCP\u4f1a\u8bdd\u3002\u5982\u679c\u6ca1\u6709\u5efa\u7acb\u88ab\u52a8TCP\u4f1a\u8bdd\uff0cBGP\u8fdb\u7a0b\u5c31\u4f1a\u542f\u52a8\u65b0\u7684\u6fc0\u6d3bTCP\uff0c\u5c1d\u8bd5\u8fde\u63a5\u5230\u8fdc\u7a0bBGP\u626c\u58f0\u5668\u3002\u5728 ConnectRetry \u8ba1\u65f6\u5668\u6b64\u7a7a\u95f2\u7684 120\u00a0\u79d2\u65f6\u95f4\u5185\uff0c\u8fdc\u7a0bBGP\u5bf9\u7b49\u4f53\u53ef\u4ee5\u4e0e\u5176\u5efa\u7acb BGP\u4f1a\u8bdd\u3002\u73b0\u5728\uff0c\u4e0d\u80fd\u6539\u53d8 Cisco IOS ConnectRetry \u8ba1\u65f6\u5668\u7684\u9ed8\u8ba4\u503c 120\u00a0\u79d2\u3002<\/span><\/p>\n

\n

\u5728 show ip bgp \u547d\u4ee4\u8f93\u51fa\u4e2d\uff0cr RIB-Failure \u6709\u4ec0\u4e48\u542b\u4e49\uff1f<\/span><\/strong><\/p>\n

\n

\n

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

\n

\u5f53 BGP \u5c1d\u8bd5\u5c06 bestpath \u524d\u7f00\u5b89\u88c5\u5230\u8def\u7531\u4fe1\u606f\u5e93\u00a0(RIB)\uff08\u4f8b\u5982\uff0cIP \u8def\u7531\u8868\uff09\u4e2d\u65f6\uff0cRIB \u53ef\u80fd\u4f1a\u56e0\u4e0b\u5217\u4efb\u4e00\u539f\u56e0\u800c\u62d2\u7eddBGP\u8def\u7531\uff1a\u00a0<\/span><\/p>\n

\n

\u25cf\u00a0\u00a0\u00a0\u00a0\u6709\u8f83\u597d\u7ba1\u7406\u8ddd\u79bb\u7684\u8def\u7531\u5df2\u5b58\u5728\u4e8e IGP \u4e2d\u3002\u4f8b\u5982\uff0c\u5982\u679c\u9759\u6001\u8def\u7531\u5df2\u7ecf\u5b58\u5728\u4e8e IP \u8def\u7531\u8868\u4e2d\u3002<\/span><\/p>\n

\u25cf\u00a0\u00a0\u00a0\u00a0\u5185\u5b58\u6545\u969c\u3002<\/span><\/p>\n

\u25cf\u00a0\u00a0\u00a0 VPN \u8def\u7531\/\u8f6c\u53d1\u00a0(VRF)\u00a0\u4e2d\u8def\u7531\u7684\u6570\u91cf\u8d85\u51fa\u5728 VRF \u5b9e\u4f8b\u4e0b\u914d\u7f6e\u7684\u8def\u7531\u9650\u989d\u3002<\/span><\/p>\n

\n

\u5728\u8fd9\u7c7b\u60c5\u51b5\u4e0b\uff0c\u62d2\u7edd\u5bf9\u4e8e\u8fd9\u4e9b\u539f\u56e0\u7684\u524d\u7f00\u7531r show ip bgp\u547d\u4ee4\u8f93\u51fa\u7684RIB\u8bc6\u522b\u548c\u901a\u544a\u7ed9\u5bf9\u7b49\u4f53\u3002\u6b64\u529f\u80fd\u6700\u5148\u5728 Cisco IOS \u8f6f\u4ef6\u7248\u672c 12.2(08.05)T \u4e2d\u53ef\u7528\u3002<\/span><\/p>\n

\n

\u5982\u4f55\u5c06\u5185\u90e8 BGP (iBGP)\uff08\u5df2\u77e5\u9ed8\u8ba4\u8def\u7531\u00a0(0.0.0.0\/0)\uff09\u8def\u7531\u91cd\u5206\u914d\u5230 EIGRP\/OSPF\/IS-IS\uff1f<\/span><\/strong><\/p>\n

\n

\u5c06 iBGP \u8def\u7531\u91cd\u5206\u914d\u5230\u5185\u90e8\u7f51\u5173\u534f\u8bae\u00a0(IGP)\uff08\u589e\u5f3a\u578b\u5185\u90e8\u7f51\u5173\u8def\u7531\u534f\u8bae\/\u5f00\u653e\u6700\u77ed\u8def\u5f84\u4f18\u5148\/\u4e2d\u95f4\u7cfb\u7edf\u5bf9\u4e2d\u95f4\u7cfb\u7edf\u00a0(EIGRP\/OSPF\/IS-IS)\uff09\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u81ea\u6cbb\u7cfb\u7edf\u4e2d\u7684\u8def\u7531\u5faa\u73af\uff0c\u4e0d\u5efa\u8bae\u8fd9\u6837\u505a\u3002<\/span><\/p>\n

\n

\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u7981\u7528\u5c06 iBGP \u91cd\u5206\u914d\u5230 IGP\u3002\u53d1\u51fa bgp redistribute-internal \u00a0\u547d\u4ee4\u53ef\u542f\u7528\u5c06 iBGP \u8def\u7531\u91cd\u5206\u914d\u5230 IGP\u3002\u5fc5\u987b\u9996\u5148\u91c7\u53d6\u9884\u9632\u63aa\u65bd\uff0c\u7136\u540e\u624d\u80fd\u4f7f\u7528 route-maps \u5c06\u7279\u5b9a\u8def\u7531\u91cd\u5206\u914d\u5230IGP\u3002<\/span><\/p>\n

\n

\u7528\u4e8e\u5c06 iBGP \u5b66\u5230\u7684\u9ed8\u8ba4\u8def\u7531\u00a00.0.0.0\/0\u00a0\u91cd\u5206\u914d\u5230 EIGRP \u00a0\u7684\u914d\u7f6e\u7684\u793a\u4f8b\u663e\u793a\u5728\u4e0b\u9762\u7684\u8f93\u51fa\u4e2d\u3002\u914d\u7f6e OSPF\/IS-IS \u7684\u8fc7\u7a0b\u4e0e\u4e0b\u9762\u7684\u8f93\u51fa\u7c7b\u4f3c\u3002\u00a0<\/span><\/p>\n

\n

\u6ce8\u610f\uff1a\u5728\u60a8\u914d\u7f6ebgp\u540e\u8bf7\u91cd\u65b0\u5206\u914dclear ip bgp\u547d\u4ee4\u5728\u672c\u5730\u8def\u7531\u8868\u91cc\u88ab\u8f93\u5165\u4ee5\u4fbf\u6e05\u9664\u6240\u6709\u8def\u7531\u7684\u5185\u90e8\u547d\u4ee4\uff0c\u4fdd\u8bc1\u3002<\/span><\/p>\n

\n

\u5982\u4f55\u8fc7\u6ee4\u5411BGP\u90bb\u5c45\u53d1\u51fa\u901a\u544a\u7684\u6240\u6709IP\u8def\u7531\uff08\u9ed8\u8ba4\u8def\u7531
<\/span><\/strong><\/p>\n

0.0.0.0\/0\u00a0\u9664\u5916\uff09\uff1f\u00a0<\/span><\/strong><\/p>\n

\n

\u5982\u679c\u5bf9\u540c\u4e00\u4e2a bgp \u90bb\u5c45\u540c\u65f6\u4f7f\u7528 Inbound filter-list\u3001distribute-list\u3001prefix-list \u548c route-map\uff0c\u5219\u53ef\u4ee5 \u8fc7\u6ee4\u7279\u5b9a\u8def\u7531\u3002\u4e0b\u9762\u662f\u6267\u884c\u987a\u5e8f\uff1a<\/span><\/p>\n

\n

1.\u00a0Filter-list
<\/span><\/p>\n

2.\u00a0Router-map<\/span><\/p>\n

3.\u00a0Distribute-list\uff08\u6216\uff09prefix-list<\/span><\/p>\n

\n

\u5982\u4f55\u6392\u9664 Protocol not in this image \u9519\u8bef\uff1f\u00a0<\/span><\/strong><\/p>\n

\n

\u83b7\u5f97\u7684\u9519\u8bef\u6d88\u606f\u539f\u56e0\u662f\uff0c\u56e0\u4e3a\u5728\u8def\u7531\u5668\u8fd0\u884c\u7684Cisco IOS\u7248\u672c\u4e0d\u652f\u6301BGP\u529f\u80fd\u3002\u4e3a\u4e86\u89e3\u51b3\u6b64\u9519\u8bef\uff0c\u8bf7\u5347\u7ea7Cisco IOS\u5bf9\u4e00\u4e2aCisco IOS\u7248\u672c\u8be5\u652f\u6301BGP\u3002<\/span><\/p>\n

\n

\u8c03\u8bd5\u8f93\u51fa\u4e2d\u663e\u793a\u201cBGP:timer-wheel\u00a0running\u00a0slow\u00a0by\u00a01 ticks\u201d?<\/span><\/strong><\/p>\n

\n

\u4ec5\u5f53\u5bf9\u8def\u7531\u5668\u542f\u7528 BGP \u8c03\u8bd5\u540e\uff0c\u6b64\u6d88\u606f\u624d\u4f1a\u663e\u793a\u3002\u5b83\u4ec5\u4ec5\u662f\u4fe1\u606f\u6027\u6d88\u606f\uff0c\u800c\u4e0d\u662f\u9519\u8bef\u4fe1\u606f\u3002\u6b64\u4fe1 \u606f\u6027\u6d88\u606f\u4e0e BGP \u5185\u90e8\u8ba1\u65f6\u5668\u76f8\u5173\u3002\u53ef\u4ee5\u901a\u8fc7\u53d1\u51fa undebug all \u547d\u4ee4\u6765\u5ffd\u7565\u6b64\u6d88\u606f\u3002
<\/span><\/p>\n

\n

\u662f\u5426\u53ef\u4ee5\u8ddf\u8e2a\u63a5\u53e3\u4ee5\u53ca\u66f4\u6539\u8def\u7531\u53ef\u7528\u6027\uff1f<\/span><\/strong>\u00a0<\/span><\/p>\n

\n

\u662f\uff0c\u53ef\u4ee5\u901a\u8fc7\u589e\u5f3a\u7684\u5bf9\u8c61\u8ddf\u8e2a\u529f\u80fd\u6765\u8ddf\u8e2a\u63a5\u53e3\u548c\u8def\u7531\u53ef\u7528\u6027\u7684\u72b6\u6001\u53d8\u5316\u3002<\/span><\/p>\n

\n

IP RIB\u66f4\u65b0\u5982\u4f55\u5206\u914d\u5185\u5b58\uff1f<\/span><\/strong><\/p>\n

\n

IP RIB \u66f4\u65b0\u5206\u914d\u524d\u7f00\uff0c\u5e76\u4e14\u4ee5\u533a\u5757\u7684\u5f62\u5f0f\u4fdd\u5b58\u5c5e\u6027\u3002\u65e0\u6cd5\u91ca\u653e\u6574\u4e2a\u5757\u533a\uff0c\u9664\u975e\u5148\u91ca\u653e\u5757\u533a\u4e2d\u7684\u5404\u4e2a\u5143\u7d20\u3002\u5982\u679c\u77e5\u9053\u4e86\u66f4\u591a\u7684\u8def\u7531\uff0c\u5219\u4f7f\u7528\u533a\u5757\u4e2d\u7684\u90a3\u4e9b\u81ea\u7531\u5143\u7d20\u3002<\/span><\/p>\n

\n

\u4ec0\u4e48\u662f\u547d\u4ee4\u53d1\u73b0IPv6 BGP\u90bb\u5c45\uff1f<\/span><\/strong><\/span><\/p>\n

\n

summary\u547d\u4ee4show \u00a0bgp\u00a0ipv6\u7684\u5355\u64ad\u7528\u4e8e\u53d1\u73b0IPv6\u00a0BGP\u90bb\u5c45
<\/span><\/p>\n

\n

\u4e3a\u4ec0\u4e48\u6709\u6ca1\u6709\u7edf\u8ba1\u4fe1\u606f\u7ed3\u679c\uff0c\u5f53\u6211\u4f7f\u7528debug bfd\u4e8b\u4ef6\u548cdebug bfd\u4fe1\u606f\u5305\u547d\u4ee4\u65f6\uff1f\u00a0<\/span><\/strong><\/p>\n

\n

\u5b83\u662f\u6b63\u5e38\u884c\u4e3a\uff0c\u5f53bfd hello\u5728\u5b50\u6700\u5c0f\u79d2\u949f\u53d1\u9001\uff0c\u5e76\u4e14\uff0c\u4e07\u4e00\u8fd0\u884c\u8be5\u7684\u8c03\u8bd5\uff0c\u8def\u7531\u5668\u4e0d\u80fd\u5904\u7406\u3002\u56e0\u6b64\uff0c\u53ea\u6709\u5f53\u98d8\u8361\u53d1\u751f\u65f6\uff0c bfd\u6d88\u606f\u5728\u8c03\u8bd5\u88ab\u770b\u5230\u3002\u8fd9\u662fdebug bfd\u547d\u4ee4\u7684\u76ee\u7684\uff1a<\/span><\/p>\n

\n

debug\u00a0bfd\u4e8b\u4ef6<\/span><\/strong><\/p>\n

\u6b64\u547d\u4ee4\u542f\u7528BFD\u4e8b\u4ef6\u8bb0\u5f55\u65e5\u5fd7\u6240\u6709\u5f53\u524d\u914d\u7f6e\u7684BFD\u4f1a\u8bdd\u7684\u3002\u5b83\u6355\u83b7BFD\u4e8b\u4ef6\u7c7b\u4f3c\u4f1a\u8bdd\u72b6\u6001\u66f4\u6539\uff0c\u8fdc\u7a0b\u7ec8\u7aef\u89e6\u53d1\u7684\u7531\u672c\u5730CLI\u6216\u4f1a\u8bdd\u914d\u7f6e\u914d\u7f6e\u66f4\u6539\u3002<\/span><\/p>\n

\n

debug\u00a0bfd\u6570\u636e\u5305<\/span><\/strong><\/p>\n

\u6b64\u547d\u4ee4\u542f\u7528BFD\u6570\u636e\u5305\u8bb0\u5f55\u65e5\u5fd7\u6240\u6709\u5f53\u524d\u914d\u7f6e\u7684BFD\u4f1a\u8bdd\u7684\u3002\u5b83\u53ea\u83b7\u53d6\u88ab\u4ea4\u6362\u7684BFD Hello\u6570\u636e\u5305\uff0c\u5f53\u6709bfd\u914d\u7f6e\u66f4\u6539\u7c7b\u4f3c\u66f4\u6539\u53d1\u751f\u7684\u4f1a\u8bdd\u72b6\u6001\u65f6\u3002\u6b63\u5e38BFD\u6570\u636e\u5305\u6ca1\u6709\u7531\u6b64\u547d\u4ee4\u6355\u83b7\u3002<\/span><\/p>\n

\n

\u5728\u65b0\u7684BGP\u90bb\u5c45\u6700\u5927\u524d\u7f00\u914d\u7f6e\u540e\uff0c\u8def\u7531\u5668\u662f\u5426\u5fc5\u987b\u88ab\u91cd\u65b0\u542f\u52a8\uff1f<\/span><\/strong><\/p>\n

\n

\u5982\u679c\u524d\u7f00\u65b0\u7684\u6700\u5927\u66f4\u52a0\u5927\u5f53\u524d\u6700\u5927\u6570\u91cf\uff0c\u90a3\u91cc\u662f\u8f6f\u6ca1\u6709\u7684\u9700\u8981\/\u56f0\u96be\u6e05\u9664BGP\u4f1a\u8bdd\uff0c\u5e76\u4e14\u91cd\u65b0\u52a0\u8f7d\u6ca1\u6709\u8981\u6c42\u3002<\/span><\/p>\n

\u5f53AS\u8def\u5f84\u52a0\u5728\u524d\u9762\u8bbe\u7f6e\u65f6\uff0c AS\u7f16\u53f7\u5c06\u88ab\u52a0\u5728\u524d\u9762\u88ab\u6dfb\u9644\u5230AS\u8def\u5f84\uff0c\u5e76\u4e14\uff0c\u5f53\u66f4\u65b0\u79bb\u5f00\u5f80eBGP\u5bf9 \u7b49\u4f53\u65f6\u7684AS\uff0c\u672c\u5730AS\u7f16\u53f7\u88ab\u52a0\u5728\u524d\u9762\u5230\u5b8c\u6574AS\u8def\u5f84\u3002\u00a0<\/span><\/p>\n

\u4f46\u662f\uff0c\u60a8\u80fd\u5bb9\u6613\u5730\u8bc1\u5b9eprending AS\u7684\u8def\u5f84\u662f\u5426\u6267\u884c\u4e0e\u8fd9\u4e9b\u9009\u9879\u4e4b\u4e00\uff1a\u00a0<\/span><\/p>\n

1. \u68c0\u67e5\u5728\u5bf9\u7b49\u4f53\u8bbe\u5907\u7684BGP AS\u8def\u5f84\u5c5e\u6027\u3002\u8fd9\u662f\u5176\u4e2d\u4e00\u4e2a\u6700\u7b80\u5355\u7684\u65b9\u6cd5\u8bc1\u5b9e\u662f\u5426\u8def\u7531\u5668\u6267\u884c\u52a0\u5728\u524d\u9762AS\u7684PATH\u3002<\/span><\/p>\n

2. \u8fd0\u884c\u5728BGP\u66f4\u65b0\u7684\u8c03\u8bd5(\u5728\u51fa\u7ad9\u65b9\u5411)\u7136\u540e\u68c0\u67e5\u52a0\u5728\u524d\u9762\u3002\u5f53\u60a8\u8c03\u8bd5BGP\u66f4\u65b0\u65f6\uff0c\u8bf7\u4f7f\u7528<\/span><\/p>\n

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

3. \u53e6\u4e00\u4e2a\u9009\u9879\u662f\u91c7\u53d6\u9000\u51fa\u63a5\u53e3\u7684\u4e00\u6570\u636e\u5305\u6355\u83b7\u548c\u770b\u5230\u4ec0\u4e48\u66f4\u65b0\u5728\u7535\u7ebf\u88ab\u53d1\u9001\u3002<\/span><\/p>\n

\n

\u5982\u4f55neighbor soft-reconfiguration inbound\u547d\u4ee4\u4f5c\u7528\uff1f<\/span><\/strong><\/p>\n

\n

neighbor soft-reconfiguration inbound\u547d\u4ee4\u9020\u6210\u8def\u7531\u5668\u50a8\u5b58\u6240\u6709\u5df2\u63a5\u6536(\u5165\u7ad9)\u8def\u7531\u7b56\u7565\u66f4\u65b0\uff0c\u4e0d\u7528\u4fee \u6539\uff0c\u4f8b\u5982\uff0c\u4e00\u4e2a\u91cd\u590d\u7684\u8868\u5728\u6bcf\u5bf9\u7b49\u4f53\u7684\u5185\u5b58\u5b58\u50a8\u3002\u6b64\u65b9\u6cd5\u662f\u5185\u5b58\u5bc6\u96c6\u7684\u548c\u4e0d\u63a8\u8350\u7684\uff0c\u9664\u975e\u7edd\u5bf9\u5fc5\u8981\u3002\u53c2\u8003\u7684\u8f6f\u91cd\u7f6e\u589e\u5f3a\u4e3a\u4e86\u8fbe\u5230\u8f6f\u91cd\u7f6e\uff0c\u4e0d\u7528\u4f7f\u7528\u989d\u5916\u7684\u5185\u5b58\u3002<\/span><\/p>\n

\n

\u4ec0\u4e48\u6267\u884c%BGP-3-NOTIFICATION *A.B.C.D6\/0 () 0\u5e73\u5747\u503c\uff1f<\/span><\/strong><\/p>\n

\n

\u5f53\u6709\u53e6\u4e00BGP\u4f1a\u8bdd\u5df2\u7ecf\u5efa\u7acb\uff0c\u6b64\u6d88\u606f\u51fa\u73b0\u3002\u6536\u5230\u505c\u6b62\u6d88\u606f\u7684\u8def\u7531\u5668\u8bbe\u6cd5\u4f20\u9001BGP\u5f00\u653e\u4fe1\u606f\u5bf9\u53e6\u4e00\u4e2a IP\u7684\u540c\u4e00\u5bf9\u7b49\u4f53\u3002\u6b64\u6d88\u606f\u662f\u88c5\u9970\u6027\u7684\u5e76\u4e14\u5f52\u7ed3\u4e8e\u8bef\u914d\u7f6e\u3002
<\/span><\/p>\n

\n

\u4ec0\u4e48\u6267\u884c%IPRT-3-ROUTEINSERTERROR \u9519\u8bef\u6d88\u606f\u5e73\u5747\u503c\u7684\uff1f\u00a0<\/span><\/strong><\/p>\n

\n

\u6b64\u9519\u8bef\u6d88\u606f\u8868\u660e\u6ca1\u6709\u9002\u5e94\u8db3\u591f\u7684\u5185\u5b58BGP\u524d\u7f00\uff0c\u4e86\u89e3\u4ece\u90bb\u5c45\u3002<\/span><\/p>\n

\n

\u4e0eCisco IOS XR\u7684GSR\u662f\u5426\u652f\u6301VPLS-BGP\u81ea\u52a8\u53d1\u73b0\u529f\u80fd\u4f5c\u4e3a\u8def \u7531\u53cd\u5c04\u5668\uff1f\u00a0<\/span><\/strong><\/p>\n

\n

\u662f\uff0c\u4e0eCisco IOS XR\u7684GSR\u652f\u6301VPLS-BGP\u81ea\u52a8\u53d1\u73b0\u7684\u8def\u7531\u53cd\u5c04\u5668\u529f\u80fd\u3002<\/span><\/p>\n

\n

\u5982\u4f55\u8c03\u8bd5\u7279\u5b9a\u7684VRF\u7684\u8def\u7531\u5728Cisco IOS XR\u73af\u5883\uff1f<\/span><\/strong><\/p>\n

\n

\u8bf7\u4f7f\u7528\u8c03\u8bd5bgp Keepalive [VRF [vrf-name|\u6240\u6709]] vpnv4\u5355\u64ad\u547d\u4ee4\u4e3a\u4e86\u8c03\u8bd5\u4e00\u7ed9\u7684VRF\u7684\u8def\u7531\u5728 Cisco IOS XR\u73af\u5883\u3002\u4ee5\u4e0b\u662f\u8f93\u51fa\u793a\u4f8b\uff1a<\/span><\/p>\n

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

\n

\u5f53\u8def\u7531\u5728BGP\u88ab\u6ce8\u5165\u901a\u8fc7redistribute\u547d\u4ee4\u6216\u7f51\u7edc\u547d\u4ee4\u65f6\u6709\u4f55\u533a\u522b\uff1f<\/span><\/strong><\/p>\n

\n

\u5f53\u60a8\u4f7f\u7528IGP\u7684\u518d\u5206\u914d\u5230BGP\u901a\u544a\u8def\u7531\u65f6\uff0c\u7136\u540e\u6ca1\u6709\u9700\u8981\u5355\u4e2a\u6307\u5b9a\u6240\u6709\u5b50\u7f51\u7684\u7f51\u7edc\u58f0\u660e\u3002\u5e76\u4e14\uff0c\u5f53\u8def\u7531\u4ece\u6240\u6709\u5176\u4ed6\u8def\u7531\u534f\u8bae\u5f97\u5230\u5230BGP\u8868\u7531\u518d\u5206\u914d\u65f6\uff0c\u539f\u59cb\u5c5e\u6027()\u5e76\u4e14\uff0c\u5f53\u60a8\u6307\u5b9a\u7f51\u7edc\u547d\u4ee4\u7136\u540e\u65f6\u5b83 \u662fInternal\/IGP (i)\u3002\u5728\u8def\u7531\u9009\u62e9\u65f6\uff0c\u6700\u4f4e\u7684\u6e90\u4ee3\u7801\u66f4\u559c\u6b22(IGP<EGP<Incomplete)\u3002
<\/span><\/p>\n

\n

\u5982\u4f55\u9a8c\u8bc1\u8f6c\u53d1\u6c47\u603b\u4fe1\u606f\u7684Layer4\uff1f<\/span><\/strong><\/p>\n

\n

\u4e3a\u4e86\u67e5\u770b\u5173\u4e8e\u8f6c\u53d1\u7684Layer4\u7684\u6c47\u603b\u4fe1\u606f\uff0c\u4f7f\u7528show mls cef summary\u547d\u4ee4\u3002\u4f8b\u5982\uff1a<\/span><\/p>\n

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

\u4f5c\u4e3a\u8fd0\u884c\u5168\u7403\u4e92\u8054\u7f51\u7684\u8def\u7531\u534f\u8bae\uff0c\u8fb9\u754c\u7f51\u5173\u534f\u8bae(BGP)\u662f\u5e2e\u52a9\u4f01\u4e1a\u4e86\u89e3\u5ba2\u6237\u5982\u4f55\u4e0e\u5176\u8054\u7cfb\u7684\u5173\u952e\u90e8\u5206\u3002 \u5982\u679c\u60f3\u4e86\u89e3\u6570\u5b57 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8,2],"tags":[],"class_list":["post-9851","post","type-post","status-publish","format-standard","hentry","category-cisco","category-network"],"_links":{"self":[{"href":"https:\/\/www.xh86.me\/index.php?rest_route=\/wp\/v2\/posts\/9851","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xh86.me\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xh86.me\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xh86.me\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xh86.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=9851"}],"version-history":[{"count":1,"href":"https:\/\/www.xh86.me\/index.php?rest_route=\/wp\/v2\/posts\/9851\/revisions"}],"predecessor-version":[{"id":9960,"href":"https:\/\/www.xh86.me\/index.php?rest_route=\/wp\/v2\/posts\/9851\/revisions\/9960"}],"wp:attachment":[{"href":"https:\/\/www.xh86.me\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=9851"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xh86.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=9851"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xh86.me\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=9851"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}