{"id":11001,"date":"2022-10-12T14:26:33","date_gmt":"2022-10-12T21:26:33","guid":{"rendered":"https:\/\/www.xh86.me\/?p=11001"},"modified":"2022-10-12T14:26:33","modified_gmt":"2022-10-12T21:26:33","slug":"bgp%e4%bb%8e%e9%9b%b6%e5%bc%80%e5%a7%8b%e8%ae%be%e8%ae%a1%e8%bf%90%e8%90%a5%e5%95%86%e7%ba%a7community-%ef%bc%88%e4%b8%8a%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.xh86.me\/?p=11001","title":{"rendered":"[BGP]\u4ece\u96f6\u5f00\u59cb\u8bbe\u8ba1\u8fd0\u8425\u5546\u7ea7community \uff08\u4e0a\uff09"},"content":{"rendered":"<p>\u6211\u4eec\u90fd\u77e5\u9053 IDC \u9700\u8981\u4f7f\u7528 BGP \u534f\u8bae\u6765\u4e0e\u4e0a\u6e38\u4ea4\u6362\u8def\u7531\u8868\u548c\u53d1\u9001\u81ea\u5df1\u7684 IP Prefix\uff0c\u800c\u4e14\u53ef\u4ee5\u901a\u8fc7 BGP \u6765\u5bf9\u8def\u7531\u5c5e\u6027\u5bf9\u81ea\u5df1\u548c\u5ba2\u6237\u7684\u7f51\u6bb5\u8fdb\u884c\u4fee\u6539\u4ee5\u8fbe\u5230\u63a7\u5236\u8def\u5f84\u7684\u6548\u679c\u3002\u4f46\u662f\u6709\u591a\u5c11\u4eba\u77e5\u9053\u5176\u5b9e BGP \u53ef\u4ee5\u4f7f\u7528 community \u6765\u5b9e\u73b0\u975e\u5e38\u65b9\u4fbf\u7684\u8def\u7531\u8def\u5f84\u8c03\u6574\u5462\uff1f\u8fd9\u7bc7\u6587\u7ae0\u5c06\u8bb2\u8ff0\u5982\u4f55\u4f7f\u7528 community \u6765\u6253\u9020\u9002\u5408\u673a\u623f\u7684\u8def\u7531\u63a7\u5236\u65b9\u6848\u3002<\/p>\n<p>\u8981\u60f3\u77e5\u9053\u5982\u4f55\u4f7f\u7528 BGP community\uff0c\u6211\u4eec\u5219\u5148\u9700\u8981\u4e86\u89e3\u4e00\u4e0b BGP \u7684\u5c5e\u6027\u3002<\/p>\n<p>BGP \u7684\u5c5e\u6027\u5206\u4ee5\u4e0b\u51e0\u79cd\u7c7b\u578b\uff0c\u5206\u522b\u662f<strong>\u516c\u8ba4\u5fc5\u9075\uff0c\u516c\u8ba4\u81ea\u51b3\uff0c\u53ef\u9009\u53ef\u8fc7\u6e21\uff0c\u53ef\u9009\u4e0d\u53ef\u8fc7\u6e21<\/strong>\u3002\u800c\u8fd9\u4e9b\u5c5e\u6027\u53c8\u6709\u5c5e\u4e8e\u4ed6\u4eec\u4e0d\u540c\u7684\u7279\u70b9\u3002<\/p>\n<p><strong>\u516c\u8ba4\u5fc5\u9075\uff08Well-Known Mandatory\uff09<\/strong>\u662f\u6240\u6709\u8def\u7531\u5668\u90fd\u5fc5\u987b\u8bc6\u522b\u7684\u5c5e\u6027\uff0c\u4e14\u8fd9\u4e9b\u5c5e\u6027\u5fc5\u987b\u51fa\u73b0\u5728\u8def\u7531\u63cf\u8ff0\u4e2d\u5e76\u4f20\u9012\u7ed9 BGP \u90bb\u5c45\u3002\u516c\u8ba4\u5fc5\u9075\u7684\u5c5e\u6027\u6709\u4ee5\u4e0b\u51e0\u4e2a\uff1a<\/p>\n<ul>\n<li>ORIGIN\uff08\u8d77\u6e90\uff09\uff1a\u8fd9\u4e2a\u5c5e\u6027\u8bf4\u660e\u4e86\u6e90\u8def\u7531\u662f\u600e\u6837\u653e\u5230 BGP \u8868\u4e2d\u7684\u3002 \u5728\u8def\u7531\u9009\u62e9\u7684\u65f6\u5019\uff0cORIGIN\u4e2d\uff0cIGP\u4f18\u4e8eEGP\uff0cEGP\u4f18\u4e8eINCOMPLETE\u3002<\/li>\n<li>AS_PATH\uff08AS\u8def\u5f84\uff09\uff1a\u6307\u51fa\u5305\u542b\u5728 UPDATE \u62a5\u6587\u4e2d\u7684\u8def\u7531\u4fe1\u606f\u6240\u7ecf\u8fc7\u7684\u81ea\u6cbb\u7cfb\u7edf\u7684\u5e8f\u5217\u3002<\/li>\n<li>Next_HOP (\u4e0b\u4e00\u8df3)\u58f0\u660e\u8def\u7531\u5668\u6240\u83b7\u5f97\u7684BGP\u8def\u7531\u7684\u4e0b\u4e00\u8df3\uff0c\u5bf9 eBGP \u4f1a\u8bdd\u6765\u8bf4\uff0c\u4e0b\u4e00\u8df3\u5c31\u662f\u901a\u544a\u8be5\u8def\u7531\u7684\u90bb\u5c45\u8def\u7531\u5668\u7684\u6e90\u5730\u5740\u3002<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><strong>\u516c\u8ba4\u81ea\u51b3\uff08Well-Known Discretionary\uff09<\/strong>\u4e5f\u662f\u6240\u6709\u8def\u7531\u5668\u5fc5\u987b\u8bc6\u522b\u7684\u5c5e\u6027\uff0c\u4f46\u662f\u53ef\u4ee5\u8ba9\u8def\u7531\u5668\u81ea\u5df1\u51b3\u5b9a\u8be5\u5c5e\u6027\u9700\u4e0d\u9700\u8981\u4f20\u9012\uff0c\u4ee5\u53ca\u51fa\u4e0d\u51fa\u73b0\u5728\u8def\u7531\u63cf\u8ff0\u4e2d\u3002\u516c\u8ba4\u81ea\u51b3\u7684\u5c5e\u6027\u6709\u4ee5\u4e0b\u51e0\u4e2a\uff1a<\/p>\n<ul>\n<li>LOCAL_PREF (\u672c\u5730\u4f18\u5148\u7ea7)\uff1a \u4ec5\u5728IBGP\u5bf9\u7b49\u4f53\u4e4b\u95f4\u4ea4\u6362\uff0c\u4e0d\u901a\u544a\u7ed9\u5176\u4ed6AS\u3002\u5f53BGP\u7684\u8def\u7531\u5668\u901a\u8fc7\u4e0d\u540c\u7684IBGP\u5bf9\u7b49\u4f53\u5f97\u5230\u76ee\u7684\u5730\u5740\u76f8\u540c\u4f46\u4e0b\u4e00\u8df3\u4e0d\u540c\u7684\u591a\u6761\u8def\u7531\u65f6\uff0c\u5c06\u4f18\u5148\u9009\u62e9LOCAL_PREF\u5c5e\u6027\u503c\u8f83\u9ad8\u7684\u8def\u7531\u3002<\/li>\n<li>ATOMIC_AGGREGATE (\u539f\u5b50\u805a\u5408)\uff1a\u539f\u5b50\u805a\u5408\u5c5e\u6027\u6307\u51fa\u5df2\u88ab\u4e22\u5931\u4e86\u7684\u4fe1\u606f\u3002<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><strong>\u53ef\u9009\u53ef\u8fc7\u6e21\uff08Optional Transitive\uff09<\/strong>\u00a0\u4e0e\u00a0<strong>\u53ef\u9009\u4e0d\u53ef\u8fc7\u6e21\uff08Optional Nontransitive\uff09<\/strong>\u5e76\u4e0d\u8981\u6c42\u6240\u6709\u8fd0\u884cBGP\u534f\u8bae\u7684\u7cfb\u7edf\u90fd\u8bc6\u522b\u3002\u5982\u679c\u5c5e\u6027\u662f\u53ef\u9009\u8fc7\u6e21\u7684\uff0c\u90a3\u4e48\uff0c\u5373\u4f7f\u8fd0\u884cBGP\u7684\u7cfb\u7edf\u4e0d\u80fd\u8bc6\u522b\u8be5\u5c5e\u6027\uff0c\u4e5f\u8981\u63a5\u53d7\u8be5\u5c5e\u6027\u5e76\u5c06\u5176\u8f6c\u53d1\u7ed9\u5b83\u7684\u5bf9\u7b49\u4f53\u3002\u800c\u5982\u679c\u5c5e\u6027\u662f\u53ef\u9009\u4e0d\u53ef\u8fc7\u6e21\u7684\uff0c\u8fd0\u884cBGP\u7684\u7cfb\u7edf\u53ef\u4ee5\u5ffd\u7565\u5305\u542b\u8be5\u5c5e\u6027\u7684\u6d88\u606f\u5e76\u4e14\u4e0d\u5411\u5b83\u7684\u5bf9\u7b49\u4f53\u8f6c\u53d1\u3002 \u8fd9\u4e24\u79cd\u7c7b\u578b\u7684\u5c5e\u6027\u5206\u522b\u6709\u4ee5\u4e0b\u51e0\u4e2a\uff1a<\/p>\n<ul>\n<li>COMMUNITY(\u56e2\u4f53) \u662f\u4e00\u7ec4\u5171\u4eab\u76f8\u540c\u5c5e\u6027\u7684\u76ee\u7684\u5730\u96c6\u5408\uff0c \u7528\u6765\u7b80\u5316\u8def\u7531\u7b56\u7565\u7684\u5e94\u7528\u548c\u964d\u4f4e\u7ef4\u62a4\u7ba1\u7406\u7684\u96be\u5ea6\uff0c\u6ca1\u6709\u7269\u7406\u4e0a\u7684\u8fb9\u754c\uff0c\u4e0e\u5176\u6240\u5728\u7684AS\u65e0\u5173\u3002<\/li>\n<li>AGGREGATOR(\u805a\u5408\u8005) \u8be5\u5c5e\u6027\u8865\u5145\u4e86\u8def\u7531\u4fe1\u606f\u5728\u54ea\u91cc\u4e22\u5931\u2014\u2014\u5b83\u5305\u542b\u4e86\u53d1\u8d77\u8def\u7531\u805a\u5408\u7684AS\u53f7\u7801\u548c\u5f62\u6210\u805a\u5408\u8def\u7531\u7684BGP\u53d1\u5e03\u8005\u7684IP\u5730\u5740\u3002<\/li>\n<li>MULTI_EXIT_DISC(\u591a\u51fa\u53e3\u533a\u5206)\u88ab\u7528\u6765\u533a\u5206\u540c\u4e00\u4e2a\u90bb\u63a5AS\u7684\u591a\u4e2a\u63a5\u53e3\u3002<\/li>\n<li>ORIGINATOR_ID(\u8d77\u6e90ID) \u7528\u4e8e\u6807\u8bc6\u8def\u7531\u53cd\u5c04\u5668\uff0c\u9632\u6b62\u5f15\u5165\u8def\u7531\u53cd\u5c04\u5668\u4e4b\u540e\u51fa\u73b0\u73af\u8def\uff0c\u589e\u52a0ORIGINATOR_ID\u8fd9\u4e2a\u5c5e\u6027\u6765\u6807\u8bc6\uff0c\u53cd\u5c04\u5668\u5728\u53d1\u5e03\u8def\u7531\u65f6\u52a0\u5165ORIGINATOR_ID\uff0c\u5f53\u53cd\u5c04\u5668\u6536\u5230\u7684\u8def\u7531\u4fe1\u606f\u4e2d\u7684ORIGINATOR_ID\u5c31\u662f\u81ea\u5df1\u7684ROUTER_ID\u65f6\uff0c\u5c31\u53ef\u4ee5\u53d1\u73b0\u8def\u7531\u73af\u8def\u7684\u51fa\u73b0\uff0c\u5c06\u8be5\u8def\u7531\u4e22\u5f03\uff0c\u4e0d\u518d\u8f6c\u53d1\u3002<\/li>\n<li>CLUSTER_LIST(\u7c07\u5217\u8868) \u7528\u4e8e\u6807\u8bc6\u8def\u7531\u53cd\u5c04\u5668\u7ec4 \uff0c\u4e5f\u662f\u7528\u6765\u9632\u6b62\u73af\u8def\uff0c\u5728\u8def\u7531\u7ecf\u8fc7\u8def\u7531\u53cd\u5c04\u5668\u65f6\u8def\u7531\u53cd\u5c04\u5668\u4f1a\u5c06\u81ea\u5df1\u7684CLUSTER_ID\u6dfb\u52a0\u5230\u8def\u7531\u643a\u5e26\u7684CLUSTER_LIST\u4e2d\uff0c\u5f53\u8def\u7531\u53cd\u5c04\u5668\u53d1\u73b0\u63a5\u6536\u7684\u8def\u7531\u7684CLUSTER_LIST\u4e2d\u5305\u542b\u6709\u81ea\u5df1\u7684CLUSTER_ID\uff0c\u5219\u5c06\u8be5\u8def\u7531\u4e22\u5f03\uff0c\u4e0d\u518d\u8f6c\u53d1\u3002<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>\u90a3\u4e48\u6211\u4eec\u5f88\u6e05\u695a\u7684\u770b\u5230\u4e86\uff0c\u516c\u8ba4\u5c5e\u6027\u5df2\u7ecf\u88ab\u5b9a\u4e49\u597d\u4e86\u8be5\u5c5e\u6027\u6240\u5e94\u53d1\u6325\u7684\u4f5c\u7528\uff0c\u6211\u4eec\u65e0\u6cd5\u5bf9\u5176\u8fdb\u884c\u4e2a\u6027\u5316\u4fee\u6539\u6765\u5b9e\u73b0\u81ea\u5df1\u60f3\u8981\u7684\u6548\u679c\u3002\u800c\u53ef\u9009\u5c5e\u6027\u5927\u90e8\u5206\u90fd\u662f\u5728\u591a\u51fa\u53e3\u9009\u8def\u7528\u4ee5\u53ca\u7f51\u7edc\u5185\u5b58\u5728\u8def\u7531\u53cd\u5c04\u5668 (Route reflector) \u5bf9\u5176\u8fdb\u884c\u6807\u8bc6\u4ee5\u8d77\u5230\u9632\u73af\u7684\u4f5c\u7528\u3002\u800c\u552f\u4e00\u7684\u53ef\u81ea\u5b9a\u4e49\u7684\u5c5e\u6027\u5219\u662f COMMUNITY\uff08\u56e2\u4f53\uff09\u5c5e\u6027\u4e86\u3002\u8981\u4f7f\u7528 COMMUNITY \u6765\u5bf9\u8def\u7531\u8def\u5f84\u8fdb\u884c\u63a7\u5236\uff0c\u6211\u4eec\u5f97\u5148\u4e86\u89e3\u4e0b\u8be5\u5c5e\u6027\u7684\u5b9a\u4e49\u3002<\/p>\n<blockquote class=\"wp-block-quote\"><p>\u56e2\u4f53\u5c5e\u6027\u53ef\u4ee5\u6dfb\u52a0\u5728\u6bcf\u4e00\u4e2a\u8def\u7531\u524d\u7f00\u4e2d\uff0c\u7531RFC1997\u5b9a\u4e49\uff0c\u662f\u4e00\u4e2atransitive optional\u5c5e\u6027\u3002\u5305\u542b\u6709\u56e2\u4f53\u5c5e\u6027\u7684\u8def\u7531\uff0c\u8868\u793a\u8be5\u8def\u7531\u662f\u4e00\u4e2a\u8def\u7531\u56e2\u4f53\u4e2d\u7684\u4e00\u5458\uff0c\u8be5\u8def\u7531\u56e2\u4f53\u5177\u6709\u67d0\u79cd\u6216\u591a\u79cd\u76f8\u540c\u7684\u7279\u5f81\u3002\u6839\u636e\u8fd9\u4e9b\u7279\u5f81\u533a\u5206\u4e0d\u540c\u7684\u8def\u7531\uff0c\u53ef\u4ee5\u5927\u5927\u7b80\u5316\u8def\u7531\u7b56\u7565\u7684\u914d\u7f6e\u5de5\u4f5c\uff0c\u540c\u65f6\u4e5f\u589e\u5f3a\u8def\u7531\u7b56\u7565\u7684\u80fd\u529b\u3002<\/p>\n<p><cite>ref:\u00a0<a href=\"http:\/\/www.h3c.com\/cn\/d_201010\/696839_97665_0.htm\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\" \u65b0\u534e\u4e09\u6280\u672f\u5b98\u7f51\uff08\u5728\u65b0\u7a97\u53e3\u6253\u5f00\uff09\">\u65b0\u534e\u4e09\u6280\u672f\u5b98\u7f51<\/a><\/cite><\/p><\/blockquote>\n<p>\u6211\u4eec\u53ef\u4ee5\u9884\u5148\u5b9a\u4e49 community \u6765\u6807\u8bc6\u8def\u7531\u5e76\u7ba1\u7406\u8def\u7531\u3002\u4f46\u662f\u5728\u8fd9\u4e4b\u524d\uff0c\u6211\u4eec\u9700\u8981\u4e00\u4e2a BGP \u7f51\u7edc\u6765\u8fdb\u884c\u64cd\u4f5c\u3002\u90a3\u4e48\u6211\u4eec\u5c31\u5148\u5f00\u59cb\u642d\u5efa\u4e00\u4e2a\u6570\u636e\u4e2d\u5fc3\u7684\u7f51\u7edc\u5427\uff01<\/p>\n<p>\u5b8c\u6574\u62d3\u6251\u5982\u4e0b\uff1a<\/p>\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/littlewolf.moe\/wp-content\/uploads\/2020\/01\/image-2-1024x744.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" class=\"wp-image-104\" data-original=\"https:\/\/littlewolf.moe\/wp-content\/uploads\/2020\/01\/image-2-1024x744.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"  alt=\"\" width=\"1024\" height=\"744\" \/><\/div><\/figure>\n<p>\u4f60\u9700\u8981\u51c6\u5907\u7684\u4e8b\u9879\u6709\uff1a<\/p>\n<ul>\n<li>\u4e00\u53f0 Juniper MX \u8def\u7531\u5668\uff08\u672c\u5b9e\u9a8c\u4f7f\u7528 Juniper \u8def\u7531\u5668\u8fdb\u884c\u6a21\u62df\uff09<\/li>\n<li>\u4e00\u4f4d\u627e\u4f60\u8d2d\u4e70\u4e86 Transit \u7684\u5ba2\u6237<\/li>\n<li>\u4f60\u5411\u4f60\u7684\u4e0a\u6e38\u4eec\u8d2d\u4e70\u4e86 Transit<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>\u6211\u4eec\u5411\u4e0a\u6e38\u8d2d\u4e70\u5e26\u5bbd\u540e\uff0c\u8fd0\u8425\u5546\u4f1a\u4e3a\u6211\u4eec\u62c9\u4e00\u6761\u7269\u7406\u94fe\u8def\uff0c\u5e76\u7ed9\u6211\u4eec Transit info \u6765\u914d\u7f6e BGP Peer\uff0cTransit info \u5982\u4e0b\u6240\u793a\uff1a<\/p>\n<p>\uff08\u4ee5\u4e0b\u6570\u636e\u5747\u4e3a\u6a21\u62df\u73af\u5883\u6570\u636e\uff0c\u771f\u5b9e\u64cd\u4f5c\u8bf7\u4f7f\u7528\u8fd0\u8425\u5546\u7ed9\u4e88\u7684\u4fe1\u606f\u8fdb\u884c\u914d\u7f6e\uff09<\/p>\n<p>Transit info\uff1a<\/p>\n<p><span class=\"su-label su-label-type-info\">[AS 1299] Telia carrier 47.0.0.1\/31 &lt;-&gt; 47.0.0.0\/31 LittleWolf Connect [AS 138667]<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span class=\"su-label su-label-type-info\">[AS 2914] NTT 74.1.0.1\/31 &lt;-&gt; 74.1.0.0\/31 LittleWolf Connect [AS 138667]<\/span><\/p>\n<p>&nbsp;<\/p>\n<p>\u597d\u4e86\uff0c\u6211\u4eec\u73b0\u5728\u5df2\u7ecf\u7d22\u53d6\u5230 BGP \u4fe1\u606f\uff0c\u662f\u65f6\u5019\u5f00\u59cb\u7ec4\u5efa\u7f51\u7edc\u4e86\u3002\u8bdd\u4e0d\u591a\u8bf4\uff0c\u5f00\u59cb\u642d\u5efa\uff01<\/p>\n<p class=\"has-small-font-size\">LittleWolf Router conf:<\/p>\n<div class=\"enlighter-default enlighter-v-standard enlighter-t-godzilla enlighter-hover enlighter-linenumbers \">\n<div class=\"enlighter\">\n<div class=\"\">\n<div><span class=\"enlighter-text\">root@Littlewolf-Backbone<\/span><span class=\"enlighter-g1\">&gt;<\/span><span class=\"enlighter-text\"> show system rollback compare <\/span><span class=\"enlighter-n1\">2<\/span> <span class=\"enlighter-n1\">0<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-g1\">[<\/span><span class=\"enlighter-text\">edit<\/span><span class=\"enlighter-g1\">]<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ interfaces <\/span><span class=\"enlighter-g1\">{<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ ge-<\/span><span class=\"enlighter-n1\">0<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n1\">0<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n1\">0<\/span> <span class=\"enlighter-g1\">{<\/span><span class=\"enlighter-c0\"> \/\/ \u914d\u7f6e telia \u4fa7\u7684 IP<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ unit <\/span><span class=\"enlighter-n1\">0<\/span> <span class=\"enlighter-g1\">{<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ family inet <\/span><span class=\"enlighter-g1\">{<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ address <\/span><span class=\"enlighter-n0\">47.0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-m3\">0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-n1\">0<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n1\">31<\/span><span class=\"enlighter-text\">;<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ <\/span><span class=\"enlighter-g1\">}<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ <\/span><span class=\"enlighter-g1\">}<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ <\/span><span class=\"enlighter-g1\">}<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ ge-<\/span><span class=\"enlighter-n1\">0<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n1\">0<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n1\">1<\/span> <span class=\"enlighter-g1\">{<\/span><span class=\"enlighter-c0\"> \/\/ \u914d\u7f6e\u5ba2\u6237\u4fa7\u7684 IP<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ unit <\/span><span class=\"enlighter-n1\">0<\/span> <span class=\"enlighter-g1\">{<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ family inet <\/span><span class=\"enlighter-g1\">{<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ address <\/span><span class=\"enlighter-n0\">10.0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-n0\">0.1<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n1\">31<\/span><span class=\"enlighter-text\">;<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ <\/span><span class=\"enlighter-g1\">}<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ <\/span><span class=\"enlighter-g1\">}<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ <\/span><span class=\"enlighter-g1\">}<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ ge-<\/span><span class=\"enlighter-n1\">0<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n1\">0<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n1\">2<\/span> <span class=\"enlighter-g1\">{<\/span><span class=\"enlighter-c0\"> \/\/ \u914d\u7f6e NTT \u4fa7\u7684 IP<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ unit <\/span><span class=\"enlighter-n1\">0<\/span> <span class=\"enlighter-g1\">{<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ family inet <\/span><span class=\"enlighter-g1\">{<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ address <\/span><span class=\"enlighter-n0\">74.1<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-m3\">0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-n1\">0<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n1\">31<\/span><span class=\"enlighter-text\">;<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ <\/span><span class=\"enlighter-g1\">}<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ <\/span><span class=\"enlighter-g1\">}<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ <\/span><span class=\"enlighter-g1\">}<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ <\/span><span class=\"enlighter-g1\">}<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ routing-options <\/span><span class=\"enlighter-g1\">{<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ static <\/span><span class=\"enlighter-g1\">{<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ route <\/span><span class=\"enlighter-m3\">0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-m3\">0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-m3\">0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-n1\">0<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n1\">0<\/span><span class=\"enlighter-text\"> discard;<\/span><span class=\"enlighter-c0\"> \/\/ \u624b\u52a8\u6c47\u603b\u9ed8\u8ba4\u8def\u7531\u7528\u4e8e\u53d1\u7ed9\u5ba2\u6237<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ <\/span><span class=\"enlighter-g1\">}<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ <\/span><span class=\"enlighter-g1\">}<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ protocols <\/span><span class=\"enlighter-g1\">{<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ bgp <\/span><span class=\"enlighter-g1\">{<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ group upstream <\/span><span class=\"enlighter-g1\">{<\/span><span class=\"enlighter-c0\"> \/\/ \u914d\u7f6e\u4e0a\u6e38\u94fe\u8def\u7ec4\uff0c\u7ec4\u540d upstream<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ type external;<\/span><span class=\"enlighter-c0\"> \/\/ \u5b9a\u4e49\u90bb\u5c45\u7c7b\u578b\u4e3a ebgp \u90bb\u5c45<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ local-as <\/span><span class=\"enlighter-n1\">138667<\/span><span class=\"enlighter-text\">;<\/span><span class=\"enlighter-c0\"> \/\/ \u672c\u5730 ASN 138667 <\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ neighbor <\/span><span class=\"enlighter-n0\">47.0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-n0\">0.1<\/span> <span class=\"enlighter-g1\">{<\/span><span class=\"enlighter-c0\"> \/\/ telia carrier bgp \u914d\u7f6e\u6587\u4ef6<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ import accept-<\/span><span class=\"enlighter-k1\">in<\/span><span class=\"enlighter-text\">;<\/span><span class=\"enlighter-c0\"> \/\/ \u5b9a\u4e49\u6536\u8def\u7531\u7684\u7b56\u7565<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ export export-client;<\/span><span class=\"enlighter-c0\"> \/\/ \u5b9a\u4e49\u53d1\u8def\u7531\u7684\u7b56\u7565\uff0c\u8fd9\u91cc\u662f\u5c06\u5ba2\u6237\u8def\u7531\u5411\u5916\u53d1\u9001<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ peer-as <\/span><span class=\"enlighter-n1\">1299<\/span><span class=\"enlighter-text\">;<\/span><span class=\"enlighter-c0\"> \/\/ \u5bf9\u7aef asn<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ <\/span><span class=\"enlighter-g1\">}<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ neighbor <\/span><span class=\"enlighter-n0\">74.1<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-m3\">0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-m3\">1<\/span> <span class=\"enlighter-g1\">{<\/span><span class=\"enlighter-c0\"> \/\/ ntt bgp \u914d\u7f6e\u6587\u4ef6<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ import accept-<\/span><span class=\"enlighter-k1\">in<\/span><span class=\"enlighter-text\">;<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ export export-client;<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ peer-as <\/span><span class=\"enlighter-n1\">2914<\/span><span class=\"enlighter-text\">;<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ <\/span><span class=\"enlighter-g1\">}<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ <\/span><span class=\"enlighter-g1\">}<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ group downstream <\/span><span class=\"enlighter-g1\">{<\/span><span class=\"enlighter-c0\"> \/\/ \u914d\u7f6e\u4e0e\u5ba2\u6237\u4fa7\u76f8\u8fde\u7684\u4e0b\u6e38\u94fe\u8def\u7ec4\uff0c\u7ec4\u540d downstream<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ type external;<\/span><span class=\"enlighter-c0\"> \/\/ \u5b9a\u4e49\u90bb\u5c45\u7c7b\u578b\u4e3a ebgp \u90bb\u5c45<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ local-as <\/span><span class=\"enlighter-n1\">138667<\/span><span class=\"enlighter-text\">;<\/span><span class=\"enlighter-c0\"> \/\/ \u672c\u5730 ASN 138667<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ neighbor <\/span><span class=\"enlighter-n0\">10.0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-m3\">0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-n1\">0<\/span> <span class=\"enlighter-g1\">{<\/span><span class=\"enlighter-c0\"> \/\/ \u4e0b\u6e38\u5ba2\u6237\u7684\u914d\u7f6e\u6587\u4ef6<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ import export-client;<\/span><span class=\"enlighter-c0\"> \/\/ \u8fc7\u6ee4\u5ba2\u6237\u8def\u7531\uff0c\u53ea\u63a5\u53d7\u5408\u6cd5\u7684 IP\u6bb5\uff0c\u62d2\u6536\u5176\u4ed6\u7684\u975e\u5ba2\u6237IP\u7684\u6bb5\uff08\u9632\u6b62\u5ba2\u6237\u4e71\u53d1\u8def\u7531\uff09<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ export export-default;<\/span><span class=\"enlighter-c0\"> \/\/ \u7ed9\u5ba2\u6237\u53d1\u9ed8\u8ba4\u8def\u7531<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ peer-as <\/span><span class=\"enlighter-n1\">65535<\/span><span class=\"enlighter-text\">;<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ <\/span><span class=\"enlighter-g1\">}<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ <\/span><span class=\"enlighter-g1\">}<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ <\/span><span class=\"enlighter-g1\">}<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ <\/span><span class=\"enlighter-g1\">}<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ policy-options <\/span><span class=\"enlighter-g1\">{<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ policy-statement accept-<\/span><span class=\"enlighter-k1\">in<\/span> <span class=\"enlighter-g1\">{<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ term bgp <\/span><span class=\"enlighter-g1\">{<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ from protocol bgp;<\/span><span class=\"enlighter-c0\"> \/\/ \u63a5\u53d7 bgp \u8def\u7531<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ <\/span><span class=\"enlighter-k1\">then<\/span><span class=\"enlighter-text\"> accept;<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ <\/span><span class=\"enlighter-g1\">}<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ <\/span><span class=\"enlighter-g1\">}<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ policy-statement export-client <\/span><span class=\"enlighter-g1\">{<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ term export-client <\/span><span class=\"enlighter-g1\">{<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ from <\/span><span class=\"enlighter-g1\">{<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ protocol bgp;<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ route-filter <\/span><span class=\"enlighter-n0\">45.0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-m3\">0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-n1\">0<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n1\">24<\/span><span class=\"enlighter-text\"> exact;<\/span><span class=\"enlighter-c0\"> \/\/ \u63a5\u53d7\u5ba2\u6237\u8be5\u5408\u6cd5IP\u6bb5\uff0c\u82e5\u5339\u914d\uff0c\u5219\u5b58\u5165\u8f6c\u53d1\u8868\u5e76\u53d1\u9001\u7ed9\u4e0a\u6e38<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ <\/span><span class=\"enlighter-g1\">}<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ <\/span><span class=\"enlighter-k1\">then<\/span><span class=\"enlighter-text\"> accept;<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ <\/span><span class=\"enlighter-g1\">}<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ term reject <\/span><span class=\"enlighter-g1\">{<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ <\/span><span class=\"enlighter-k1\">then<\/span><span class=\"enlighter-text\"> reject;<\/span><span class=\"enlighter-c0\"> \/\/ \u62d2\u7edd\u5176\u4ed6\u8def\u7531\uff0c\u4e00\u5b9a\u8981\u5199\uff0c\u4e0d\u7136\u4f1a\u6f0f\u8def\u7531<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ <\/span><span class=\"enlighter-g1\">}<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ <\/span><span class=\"enlighter-g1\">}<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ policy-statement export-default <\/span><span class=\"enlighter-g1\">{<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ term export-default <\/span><span class=\"enlighter-g1\">{<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ from <\/span><span class=\"enlighter-g1\">{<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ route-filter <\/span><span class=\"enlighter-m3\">0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-m3\">0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-m3\">0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-n1\">0<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n1\">0<\/span><span class=\"enlighter-text\"> exact;<\/span><span class=\"enlighter-c0\"> \/\/ \u5c06\u624b\u52a8\u6c47\u603b\u7684\u9ed8\u8ba4\u8def\u7531\u53d1\u9001\u7ed9\u5ba2\u6237\uff0c\u4e14\u53ea\u9700\u8981\u53d1\u8fd9\u4e00\u6761\u8def\u7531<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ <\/span><span class=\"enlighter-g1\">}<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ <\/span><span class=\"enlighter-k1\">then<\/span><span class=\"enlighter-text\"> accept;<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ <\/span><span class=\"enlighter-g1\">}<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ term reject <\/span><span class=\"enlighter-g1\">{<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ <\/span><span class=\"enlighter-k1\">then<\/span><span class=\"enlighter-text\"> reject;<\/span><span class=\"enlighter-c0\"> \/\/ \u62d2\u7edd\u5176\u4ed6\u8def\u7531\uff0c\u4e00\u5b9a\u8981\u5199\uff0c\u4e0d\u7136\u4f1a\u6f0f\u8def\u7531\u3002\u771f\u5b9e\u73af\u5883\u4e2d\uff0c\u5ba2\u6237\u7684\u8bbe\u5907\u53ef\u53d7\u4e0d\u4e86\u5168\u8868\u7684\u8f70\u70b8\uff01\u4e00\u5b9a\u8981\u5c0f\u5fc3\uff01<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ <\/span><span class=\"enlighter-g1\">}<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ <\/span><span class=\"enlighter-g1\">}<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ <\/span><span class=\"enlighter-g1\">}<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u914d\u7f6e\u5b8c\u6210\u4e86\uff0c\u6211\u4eec\u6765\u9a8c\u8bc1\u662f\u5426\u6210\u529f\u5efa\u7acb\u4e86 BGP \u90bb\u5c45\u5427\uff01\u6bd5\u7adf\u60f3\u8981\u4f7f\u7528 community \u5fc5\u987b\u8981\u5df2\u7ecf\u6709\u6b63\u5e38\u5de5\u4f5c\u7684 BGP \u7f51\u7edc\u5462\u3002<\/p>\n<p><strong>\u9a8c\u8bc1\u9aa8\u5e72\u8def\u7531\u5668\u7684 BGP \u90bb\u5c45\uff1a<\/strong><\/p>\n<div class=\"enlighter-default enlighter-v-standard enlighter-t-godzilla enlighter-hover enlighter-linenumbers \">\n<div class=\"enlighter\">\n<div class=\"\">\n<div><span class=\"enlighter-text\">root@Littlewolf-Backbone<\/span><span class=\"enlighter-g1\">&gt;<\/span><span class=\"enlighter-text\"> show bgp summary<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">Groups: <\/span><span class=\"enlighter-n1\">2<\/span><span class=\"enlighter-text\"> Peers: <\/span><span class=\"enlighter-n1\">3<\/span><span class=\"enlighter-text\"> Down peers: <\/span><span class=\"enlighter-n1\">0<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">Table Tot Paths Act Paths Suppressed History Damp State Pending<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">inet.<\/span><span class=\"enlighter-m3\">0<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-n1\">7<\/span> <span class=\"enlighter-n1\">4<\/span> <span class=\"enlighter-n1\">0<\/span> <span class=\"enlighter-n1\">0<\/span> <span class=\"enlighter-n1\">0<\/span> <span class=\"enlighter-n1\">0<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">Peer AS InPkt OutPkt OutQ Flaps Last Up\/Dwn State<\/span><span class=\"enlighter-c0\">|#Active\/Received\/Accepted\/Damped&#8230;<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-n0\">10.0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-m3\">0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-n1\">0<\/span> <span class=\"enlighter-n1\">65535<\/span> <span class=\"enlighter-n1\">107<\/span> <span class=\"enlighter-n1\">110<\/span> <span class=\"enlighter-n1\">0<\/span> <span class=\"enlighter-n1\">0<\/span> <span class=\"enlighter-n1\">47<\/span><span class=\"enlighter-text\">:<\/span><span class=\"enlighter-n4\">07<\/span> <span class=\"enlighter-n1\">1<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n1\">1<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n1\">1<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n1\">0<\/span> <span class=\"enlighter-n1\">0<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n1\">0<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n1\">0<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n1\">0<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-n0\">47.0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-n0\">0.1<\/span> <span class=\"enlighter-n1\">1299<\/span> <span class=\"enlighter-n1\">112<\/span> <span class=\"enlighter-n1\">109<\/span> <span class=\"enlighter-n1\">0<\/span> <span class=\"enlighter-n1\">0<\/span> <span class=\"enlighter-n1\">48<\/span><span class=\"enlighter-text\">:<\/span><span class=\"enlighter-n1\">13<\/span> <span class=\"enlighter-n1\">3<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n1\">3<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n1\">3<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n1\">0<\/span> <span class=\"enlighter-n1\">0<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n1\">0<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n1\">0<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n1\">0<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-n0\">74.1<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-m3\">0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-m3\">1<\/span> <span class=\"enlighter-n1\">2914<\/span> <span class=\"enlighter-n1\">112<\/span> <span class=\"enlighter-n1\">113<\/span> <span class=\"enlighter-n1\">0<\/span> <span class=\"enlighter-n1\">0<\/span> <span class=\"enlighter-n1\">48<\/span><span class=\"enlighter-text\">:<\/span><span class=\"enlighter-n1\">10<\/span> <span class=\"enlighter-n1\">0<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n1\">3<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n1\">3<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n1\">0<\/span> <span class=\"enlighter-n1\">0<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n1\">0<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n1\">0<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n1\">0<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u90bb\u5c45\u5173\u7cfb\u5efa\u7acb\u6b63\u786e\uff0c\u800c\u4e14\u4ece\u4e0a\u6e38\u5df2\u7ecf\u6536\u5230\u4e86\u6765\u81ea Google, Microsoft, Apple \u7684\u8def\u7531\u6761\u76ee\u3002\u90a3\u4e48\u6211\u4eec\u7ee7\u7eed\u89c2\u5bdf\u4e0b\u8def\u7531\u8868\u3002<\/p>\n<p><strong>\u9a8c\u8bc1\u9aa8\u5e72\u8def\u7531\u5668\u7684\u8def\u7531\u8868\uff1a<\/strong><\/p>\n<div class=\"enlighter-default enlighter-v-standard enlighter-t-godzilla enlighter-hover enlighter-linenumbers \">\n<div class=\"enlighter\">\n<div class=\"\">\n<div><span class=\"enlighter-text\">root@Littlewolf-Backbone<\/span><span class=\"enlighter-g1\">&gt;<\/span><span class=\"enlighter-text\"> show route protocol bgp<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">inet.<\/span><span class=\"enlighter-m3\">0<\/span><span class=\"enlighter-text\">: <\/span><span class=\"enlighter-n1\">11<\/span><span class=\"enlighter-text\"> destinations, <\/span><span class=\"enlighter-n1\">14<\/span> <span class=\"enlighter-m0\">routes<\/span> <span class=\"enlighter-g1\">(<\/span><span class=\"enlighter-n1\">11<\/span><span class=\"enlighter-text\"> active, <\/span><span class=\"enlighter-n1\">0<\/span><span class=\"enlighter-text\"> holddown, <\/span><span class=\"enlighter-n1\">0<\/span><span class=\"enlighter-text\"> hidden<\/span><span class=\"enlighter-g1\">)<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">+ = Active Route, &#8211; = Last Active, <\/span><span class=\"enlighter-g0\">*<\/span><span class=\"enlighter-text\"> = Both<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-m3\">8<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-m3\">8<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-m3\">8<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-n1\">8<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n1\">32<\/span><span class=\"enlighter-text\"> *<\/span><span class=\"enlighter-g1\">[<\/span><span class=\"enlighter-text\">BGP\/<\/span><span class=\"enlighter-n1\">170<\/span><span class=\"enlighter-g1\">]<\/span> <span class=\"enlighter-n4\">00<\/span><span class=\"enlighter-text\">:<\/span><span class=\"enlighter-n1\">42<\/span><span class=\"enlighter-text\">:<\/span><span class=\"enlighter-n1\">51<\/span><span class=\"enlighter-text\">, localpref <\/span><span class=\"enlighter-n1\">100<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\"> AS path: <\/span><span class=\"enlighter-n1\">1299<\/span> <span class=\"enlighter-n1\">4785<\/span><span class=\"enlighter-text\"> I, validation-state: unverified<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-g1\">&gt;<\/span><span class=\"enlighter-text\"> to <\/span><span class=\"enlighter-n0\">47.0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-n0\">0.1<\/span><span class=\"enlighter-text\"> via ge-<\/span><span class=\"enlighter-n1\">0<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n1\">0<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-m3\">0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-n1\">0<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-g1\">[<\/span><span class=\"enlighter-text\">BGP\/<\/span><span class=\"enlighter-n1\">170<\/span><span class=\"enlighter-g1\">]<\/span> <span class=\"enlighter-n4\">00<\/span><span class=\"enlighter-text\">:<\/span><span class=\"enlighter-n4\">05<\/span><span class=\"enlighter-text\">:<\/span><span class=\"enlighter-n1\">09<\/span><span class=\"enlighter-text\">, localpref <\/span><span class=\"enlighter-n1\">100<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\"> AS path: <\/span><span class=\"enlighter-n1\">2914<\/span> <span class=\"enlighter-n1\">4785<\/span><span class=\"enlighter-text\"> I, validation-state: unverified<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-g1\">&gt;<\/span><span class=\"enlighter-text\"> to <\/span><span class=\"enlighter-n0\">74.1<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-m3\">0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-m3\">1<\/span><span class=\"enlighter-text\"> via ge-<\/span><span class=\"enlighter-n1\">0<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n1\">0<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n0\">2.0<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-n0\">13.64<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-m3\">0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-m3\">1<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n1\">32<\/span><span class=\"enlighter-text\"> *<\/span><span class=\"enlighter-g1\">[<\/span><span class=\"enlighter-text\">BGP\/<\/span><span class=\"enlighter-n1\">170<\/span><span class=\"enlighter-g1\">]<\/span> <span class=\"enlighter-n4\">00<\/span><span class=\"enlighter-text\">:<\/span><span class=\"enlighter-n1\">42<\/span><span class=\"enlighter-text\">:<\/span><span class=\"enlighter-n1\">51<\/span><span class=\"enlighter-text\">, localpref <\/span><span class=\"enlighter-n1\">100<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\"> AS path: <\/span><span class=\"enlighter-n1\">1299<\/span> <span class=\"enlighter-n1\">4785<\/span><span class=\"enlighter-text\"> I, validation-state: unverified<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-g1\">&gt;<\/span><span class=\"enlighter-text\"> to <\/span><span class=\"enlighter-n0\">47.0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-n0\">0.1<\/span><span class=\"enlighter-text\"> via ge-<\/span><span class=\"enlighter-n1\">0<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n1\">0<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-m3\">0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-n1\">0<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-g1\">[<\/span><span class=\"enlighter-text\">BGP\/<\/span><span class=\"enlighter-n1\">170<\/span><span class=\"enlighter-g1\">]<\/span> <span class=\"enlighter-n4\">00<\/span><span class=\"enlighter-text\">:<\/span><span class=\"enlighter-n4\">00<\/span><span class=\"enlighter-text\">:<\/span><span class=\"enlighter-n1\">35<\/span><span class=\"enlighter-text\">, localpref <\/span><span class=\"enlighter-n1\">100<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\"> AS path: <\/span><span class=\"enlighter-n1\">2914<\/span> <span class=\"enlighter-n1\">4785<\/span> <span class=\"enlighter-n1\">4785<\/span> <span class=\"enlighter-n1\">4785<\/span> <span class=\"enlighter-n1\">4785<\/span><span class=\"enlighter-text\"> I, validation-state: unverified<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-g1\">&gt;<\/span><span class=\"enlighter-text\"> to <\/span><span class=\"enlighter-n0\">74.1<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-m3\">0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-m3\">1<\/span><span class=\"enlighter-text\"> via ge-<\/span><span class=\"enlighter-n1\">0<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n1\">0<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n0\">2.0<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-n0\">17.0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-n0\">0.1<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n1\">32<\/span><span class=\"enlighter-text\"> *<\/span><span class=\"enlighter-g1\">[<\/span><span class=\"enlighter-text\">BGP\/<\/span><span class=\"enlighter-n1\">170<\/span><span class=\"enlighter-g1\">]<\/span> <span class=\"enlighter-n4\">00<\/span><span class=\"enlighter-text\">:<\/span><span class=\"enlighter-n1\">42<\/span><span class=\"enlighter-text\">:<\/span><span class=\"enlighter-n1\">51<\/span><span class=\"enlighter-text\">, localpref <\/span><span class=\"enlighter-n1\">100<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\"> AS path: <\/span><span class=\"enlighter-n1\">1299<\/span> <span class=\"enlighter-n1\">4785<\/span><span class=\"enlighter-text\"> I, validation-state: unverified<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-g1\">&gt;<\/span><span class=\"enlighter-text\"> to <\/span><span class=\"enlighter-n0\">47.0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-n0\">0.1<\/span><span class=\"enlighter-text\"> via ge-<\/span><span class=\"enlighter-n1\">0<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n1\">0<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-m3\">0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-n1\">0<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-g1\">[<\/span><span class=\"enlighter-text\">BGP\/<\/span><span class=\"enlighter-n1\">170<\/span><span class=\"enlighter-g1\">]<\/span> <span class=\"enlighter-n4\">00<\/span><span class=\"enlighter-text\">:<\/span><span class=\"enlighter-n4\">05<\/span><span class=\"enlighter-text\">:<\/span><span class=\"enlighter-n1\">09<\/span><span class=\"enlighter-text\">, localpref <\/span><span class=\"enlighter-n1\">100<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\"> AS path: <\/span><span class=\"enlighter-n1\">2914<\/span> <span class=\"enlighter-n1\">4785<\/span><span class=\"enlighter-text\"> I, validation-state: unverified<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-g1\">&gt;<\/span><span class=\"enlighter-text\"> to <\/span><span class=\"enlighter-n0\">74.1<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-m3\">0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-m3\">1<\/span><span class=\"enlighter-text\"> via ge-<\/span><span class=\"enlighter-n1\">0<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n1\">0<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n0\">2.0<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-n0\">45.0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-m3\">0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-n1\">0<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n1\">24<\/span><span class=\"enlighter-text\"> *<\/span><span class=\"enlighter-g1\">[<\/span><span class=\"enlighter-text\">BGP\/<\/span><span class=\"enlighter-n1\">170<\/span><span class=\"enlighter-g1\">]<\/span> <span class=\"enlighter-n4\">00<\/span><span class=\"enlighter-text\">:<\/span><span class=\"enlighter-n1\">51<\/span><span class=\"enlighter-text\">:<\/span><span class=\"enlighter-n1\">34<\/span><span class=\"enlighter-text\">, MED <\/span><span class=\"enlighter-n1\">0<\/span><span class=\"enlighter-text\">, localpref <\/span><span class=\"enlighter-n1\">100<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\"> AS path: <\/span><span class=\"enlighter-n1\">65535<\/span><span class=\"enlighter-text\"> I, validation-state: unverified<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-g1\">&gt;<\/span><span class=\"enlighter-text\"> to <\/span><span class=\"enlighter-n0\">10.0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-m3\">0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-n1\">0<\/span><span class=\"enlighter-text\"> via ge-<\/span><span class=\"enlighter-n1\">0<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n1\">0<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n0\">1.0<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u53ef\u4ee5\u770b\u5230\u5df2\u7ecf\u4ece\u4e0a\u6e38\u6536\u5230\u4e86\u8def\u7531\u8868\uff0c\u4e14\u4e0e\u4e0b\u6e38\u5ba2\u6237\u7684\u8def\u7531\u5668\u4e5f\u5efa\u7acb\u4e86 BGP \u8fde\u63a5\u3002\u90a3\u4e48\u6211\u4eec\u518d\u6765\u770b\u4e00\u4e0b\u5ba2\u6237\u7684\u8def\u7531\u5668\u5427\uff01<\/p>\n<p><strong>\u9a8c\u8bc1\u5ba2\u6237\u8def\u7531\u5668 BGP \u6570\u636e\u5e93\uff1a<\/strong><\/p>\n<div class=\"enlighter-default enlighter-v-standard enlighter-t-godzilla enlighter-hover enlighter-linenumbers \">\n<div class=\"enlighter\">\n<div class=\"\">\n<div><span class=\"enlighter-text\">clien<\/span><span class=\"enlighter-c0\">t#show ip bgp<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">BGP table version is <\/span><span class=\"enlighter-n1\">14<\/span><span class=\"enlighter-text\">, local router ID is <\/span><span class=\"enlighter-n0\">10.0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-m3\">0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-n1\">0<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">Status codes: s suppressed, d damped, h history, <\/span><span class=\"enlighter-g0\">*<\/span><span class=\"enlighter-text\"> valid, <\/span><span class=\"enlighter-g1\">&gt;<\/span><span class=\"enlighter-text\"> best, i &#8211; internal<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\"> Network Next Hop Metric LocPrf Weight Path<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\"> *<\/span><span class=\"enlighter-g1\">&gt;<\/span> <span class=\"enlighter-m3\">0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-m3\">0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-m3\">0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-n1\">0<\/span> <span class=\"enlighter-n0\">10.0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-n0\">0.1<\/span> <span class=\"enlighter-n1\">0<\/span> <span class=\"enlighter-n1\">138667<\/span><span class=\"enlighter-text\"> i<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\"> *<\/span><span class=\"enlighter-g1\">&gt;<\/span> <span class=\"enlighter-n0\">45.0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-m3\">0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-n1\">0<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n1\">24<\/span> <span class=\"enlighter-m3\">0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-m3\">0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-m3\">0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-n1\">0<\/span> <span class=\"enlighter-n1\">0<\/span> <span class=\"enlighter-n1\">32768<\/span><span class=\"enlighter-text\"> i<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u53ef\u89c1\u5ba2\u6237\u5df2\u7ecf\u6210\u529f\u5efa\u7acb\u4e86\u4e0e\u6211\u4eec\u7684 BGP \u94fe\u63a5\uff0c\u4e14\u5df2\u6536\u5230\u6211\u4eec\u53d1\u8fc7\u6765\u7684\u9ed8\u8ba4\u8def\u7531\u3002\u90a3\u4e48\u73b0\u5728\u7f51\u7edc\u5df2\u7ecf\u901a\u4e86\u5417\uff1f<\/p>\n<p><strong>\u9a8c\u8bc1\u7f51\u7edc\u8fde\u901a\u6027\uff1a<\/strong><\/p>\n<div class=\"enlighter-default enlighter-v-standard enlighter-t-godzilla enlighter-hover enlighter-linenumbers \">\n<div class=\"enlighter\">\n<div class=\"\">\n<div><span class=\"enlighter-text\">clien<\/span><span class=\"enlighter-c0\">t#ping 8.8.8.8 source 45.0.0.1<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">Type escape sequence to abort.<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">Sending <\/span><span class=\"enlighter-n1\">5<\/span><span class=\"enlighter-text\">, <\/span><span class=\"enlighter-n1\">100<\/span><span class=\"enlighter-text\">-byte ICMP Echos to <\/span><span class=\"enlighter-m3\">8<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-m3\">8<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-m3\">8<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-n1\">8<\/span><span class=\"enlighter-text\">, timeout is <\/span><span class=\"enlighter-n1\">2<\/span><span class=\"enlighter-text\"> seconds:<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">Packet sent with a source address <\/span><span class=\"enlighter-k1\">of<\/span> <span class=\"enlighter-n0\">45.0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-n0\">0.1<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">!!!!!<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">Success rate is <\/span><span class=\"enlighter-n1\">100<\/span> <span class=\"enlighter-m0\">percent<\/span> <span class=\"enlighter-g1\">(<\/span><span class=\"enlighter-n1\">5<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n1\">5<\/span><span class=\"enlighter-g1\">)<\/span><span class=\"enlighter-text\">, round-trip min\/avg\/max = <\/span><span class=\"enlighter-n1\">3<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n1\">5<\/span><span class=\"enlighter-text\">\/<\/span><span class=\"enlighter-n1\">11<\/span><span class=\"enlighter-text\"> ms<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">clien<\/span><span class=\"enlighter-c0\">t#traceroute 8.8.8.8 source 45.0.0.1<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">Type escape sequence to abort.<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">Tracing the route to <\/span><span class=\"enlighter-m3\">8<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-m3\">8<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-m3\">8<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-n1\">8<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-text\">VRF info: <\/span><span class=\"enlighter-g1\">(<\/span><span class=\"enlighter-text\">vrf <\/span><span class=\"enlighter-k1\">in<\/span><span class=\"enlighter-text\"> name\/id, vrf out name\/id<\/span><span class=\"enlighter-g1\">)<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-n1\">1<\/span> <span class=\"enlighter-n0\">10.0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-n0\">0.1<\/span> <span class=\"enlighter-g1\">[<\/span><span class=\"enlighter-text\">AS <\/span><span class=\"enlighter-n1\">138667<\/span><span class=\"enlighter-g1\">]<\/span> <span class=\"enlighter-n1\">10<\/span><span class=\"enlighter-text\"> msec <\/span><span class=\"enlighter-n1\">11<\/span><span class=\"enlighter-text\"> msec <\/span><span class=\"enlighter-n1\">3<\/span><span class=\"enlighter-text\"> msec<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-n1\">2<\/span> <span class=\"enlighter-n0\">47.0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-n0\">0.1<\/span> <span class=\"enlighter-g1\">[<\/span><span class=\"enlighter-text\">AS <\/span><span class=\"enlighter-n1\">138667<\/span><span class=\"enlighter-g1\">]<\/span> <span class=\"enlighter-n1\">6<\/span><span class=\"enlighter-text\"> msec <\/span><span class=\"enlighter-n1\">14<\/span><span class=\"enlighter-text\"> msec <\/span><span class=\"enlighter-n1\">3<\/span><span class=\"enlighter-text\"> msec<\/span><\/div>\n<\/div>\n<div class=\"\">\n<div><span class=\"enlighter-n1\">3<\/span> <span class=\"enlighter-n0\">101.0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-m3\">0<\/span><span class=\"enlighter-text\">.<\/span><span class=\"enlighter-n1\">0<\/span> <span class=\"enlighter-g1\">[<\/span><span class=\"enlighter-text\">AS <\/span><span class=\"enlighter-n1\">138667<\/span><span class=\"enlighter-g1\">]<\/span> <span class=\"enlighter-n1\">8<\/span><span class=\"enlighter-text\"> msec <\/span><span class=\"enlighter-n1\">10<\/span><span class=\"enlighter-text\"> msec *<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>Ping \u4e0e Traceroute \u7ed3\u679c\u6b63\u5e38\uff0c\u53ef\u89c1 BGP \u5de5\u4f5c\u6b63\u5e38\uff0c\u5bf9\u65b9\u5df2\u63a5\u53d7\u6211\u4eec\u7684 IP \u6bb5\uff0c\u901a\u4fe1\u6b63\u5e38\u3002<\/p>\n<p>\u5bf9\u4e8e\u8fd9\u79cd\u7591\u95ee\uff0c\u6211\u60f3\u8bf4\u7684\u662f\uff0c\u5982\u679c\u5ba2\u6237\u7f51\u7edc\u89c4\u6a21\u5f88\u5927\u800c\u4e14\u6761\u76ee\u5f88\u591a\uff0c\u800c\u4e14\u5ba2\u6237\u6709\u8981\u6c42\u90a3\u4e9b\u6bb5\u53ea\u80fd\u53d1\u7ed9\u54ea\u4e2a transit\uff0c\u54ea\u4e9b\u6bb5\u4e0d\u80fd\u53d1\u7ed9\u54ea\u4e2a transit\uff0c\u9700\u8981\u7ef4\u62a4\u597d\u51e0\u4e2a\u8fc7\u6ee4\u8868\uff0c\u90a3\u5c82\u4e0d\u662f\u5f88\u9ebb\u70e6\uff1f\u4e3a\u4e86\u65b9\u4fbf\u7ef4\u62a4\uff0c\u6211\u4eec\u5c31\u9700\u8981\u662f\u7528 community \u6765\u8fdb\u884c\u4e00\u7ad9\u5f0f\u7ba1\u7406\u3002<\/p>\n<p>\u6b32\u77e5\u540e\u4e8b\u5982\u4f55\uff0c\u4e14\u542c\u4e0b\u56de\u5206\u89e3\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6211\u4eec\u90fd\u77e5\u9053 IDC \u9700\u8981\u4f7f\u7528 BGP \u534f\u8bae\u6765\u4e0e\u4e0a\u6e38\u4ea4\u6362\u8def\u7531\u8868\u548c\u53d1\u9001\u81ea\u5df1\u7684 IP Prefix\uff0c\u800c\u4e14\u53ef\u4ee5\u901a\u8fc7 B [&hellip;]<\/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-11001","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\/11001","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=11001"}],"version-history":[{"count":1,"href":"https:\/\/www.xh86.me\/index.php?rest_route=\/wp\/v2\/posts\/11001\/revisions"}],"predecessor-version":[{"id":11002,"href":"https:\/\/www.xh86.me\/index.php?rest_route=\/wp\/v2\/posts\/11001\/revisions\/11002"}],"wp:attachment":[{"href":"https:\/\/www.xh86.me\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=11001"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xh86.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=11001"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xh86.me\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=11001"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}