{"id":68219,"date":"2026-01-15T09:32:16","date_gmt":"2026-01-15T01:32:16","guid":{"rendered":"https:\/\/www.dataplugs.com\/automated-failover-with-vrrp-bgp-for-server-availability\/"},"modified":"2026-01-15T09:33:51","modified_gmt":"2026-01-15T01:33:51","slug":"automated-failover-with-vrrp-bgp-for-server-availability","status":"publish","type":"post","link":"https:\/\/www.dataplugs.com\/sc\/automated-failover-with-vrrp-bgp-for-server-availability\/","title":{"rendered":"\u901a\u8fc7 VRRP\u3001BGP 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\u6545\u969c\u5207\u6362\u4e0e\u670d\u52a1\u5165\u53e3\u63a7\u5236<\/strong><\/h2>\n<p>VRRP \u9ad8\u53ef\u7528\u4e13\u6ce8\u4e8e IP \u5730\u5740\u7684\u63a7\u5236\u6743\u3002\u591a\u4e2a\u8282\u70b9\u7ec4\u6210\u5197\u4f59\u7ec4\uff0c\u5171\u4eab\u4e00\u4e2a\u865a\u62df IP\uff0c\u5bf9\u5ba2\u6237\u7aef\u800c\u8a00\uff0c\u8fd9\u5c31\u662f\u9ed8\u8ba4\u7f51\u5173\u6216\u670d\u52a1\u5730\u5740\u3002\u4efb\u610f\u65f6\u523b\u53ea\u6709\u4e00\u4e2a\u8282\u70b9\u5904\u4e8e\u4e3b\u72b6\u6001\uff0c\u5176\u4f59\u8282\u70b9\u4fdd\u6301\u5f85\u547d\u3002<\/p>\n<p>\u5f53\u4e3b\u8282\u70b9\u4e0d\u518d\u5065\u5eb7\u65f6\uff0cVRRP \u4f1a\u901a\u8fc7\u5feb\u901f\u901a\u544a\u548c Gratuitous ARP \u5c06\u63a7\u5236\u6743\u8f6c\u79fb\u7ed9\u5907\u8282\u70b9\u3002\u8be5\u8fc7\u7a0b\u4fdd\u8bc1\u4e86\u672c\u5730\u8fde\u901a\u6027\u7684\u8fde\u7eed\u6027\uff0c\u65e0\u9700\u4fee\u6539\u5ba2\u6237\u7aef\u914d\u7f6e\u3002\u5bf9\u5e94\u7528\u548c\u5185\u90e8\u7cfb\u7edf\u800c\u8a00\uff0cIP \u5730\u5740\u6ca1\u6709\u53d8\u5316\uff0c\u53ea\u662f\u80cc\u540e\u7684\u627f\u8f7d\u8282\u70b9\u53d1\u751f\u4e86\u5207\u6362\u3002<\/p>\n<p>\u8fd9\u79cd\u6a21\u5f0f\u975e\u5e38\u9002\u5408\u4fdd\u62a4\u7f51\u5173\u3001\u8d1f\u8f7d\u5747\u8861\u5165\u53e3\uff0c\u4ee5\u53ca\u5fc5\u987b\u5728\u540c\u4e00\u4e8c\u5c42\u7f51\u7edc\u4e2d\u6301\u7eed\u53ef\u8fbe\u7684\u5e94\u7528\u670d\u52a1\u5668\u3002\u4f46\u4ec5\u4f9d\u9760 VRRP\uff0c\u65e0\u6cd5\u51b3\u5b9a\u6765\u81ea\u4e92\u8054\u7f51\u7684\u6d41\u91cf\u5982\u4f55\u62b5\u8fbe\u8be5 IP\u3002<\/p>\n<h2><strong>\u7f3a\u4e4f\u8def\u7531\u611f\u77e5\u65f6 VRRP \u7684\u5c40\u9650\u6027<\/strong><\/h2>\n<p>\u4e00\u79cd\u5e38\u89c1\u7684\u6545\u969c\u573a\u666f\u662f\uff0cVRRP \u5df2\u6210\u529f\u5b8c\u6210 IP \u5207\u6362\uff0c\u4f46\u4e0a\u6e38\u7f51\u7edc\u4ecd\u6301\u7eed\u5c06\u6d41\u91cf\u53d1\u9001\u81f3\u5df2\u7ecf\u5931\u6548\u7684\u8282\u70b9\u3002\u670d\u52a1\u5728\u672c\u5730\u770b\u4f3c\u6b63\u5e38\uff0c\u5bf9\u5916\u5374\u5b8c\u5168\u4e0d\u53ef\u8bbf\u95ee\u3002\u8fd9\u4e00\u95ee\u9898\u63ed\u793a\u4e86\u6838\u5fc3\u9650\u5236\u3002VRRP \u8fd0\u884c\u5728\u63a5\u53e3\u548c\u5b50\u7f51\u5c42\u9762\uff0c\u800c\u4e92\u8054\u7f51\u7684\u8f6c\u53d1\u51b3\u7b56\u53d1\u751f\u5728\u66f4\u9ad8\u5c42\u7ea7\u3002<\/p>\n<p>\u82e5\u8981\u5728\u5355\u4e00\u5e7f\u64ad\u57df\u4e4b\u5916\u7ef4\u6301\u670d\u52a1\u5668\u53ef\u7528\u6027\uff0c\u6545\u969c\u5207\u6362\u5fc5\u987b\u5f71\u54cd\u8def\u7531\u901a\u544a\u3002\u8fd9\u6b63\u662f BGP \u6545\u969c\u5207\u6362\u53d1\u6325\u4f5c\u7528\u7684\u5730\u65b9\u3002<\/p>\n<h2><strong>BGP \u6545\u969c\u5207\u6362\u4e0e\u5bf9\u5916\u53ef\u8fbe\u6027<\/strong><\/h2>\n<p>BGP \u8d1f\u8d23\u5728\u81ea\u6cbb\u7cfb\u7edf\u4e4b\u95f4\u901a\u544a\u548c\u64a4\u56de IP \u524d\u7f00\u3002\u5f53\u8282\u70b9\u53d1\u5e03\u8def\u7531\u65f6\uff0c\u4e0a\u6e38\u8def\u7531\u5668\u4f1a\u5c06\u6d41\u91cf\u5bfc\u5411\u8be5\u8282\u70b9\uff1b\u5f53\u901a\u544a\u64a4\u56de\u65f6\uff0c\u6d41\u91cf\u4f1a\u81ea\u7136\u6536\u655b\u5230\u5176\u4ed6\u53ef\u7528\u8def\u5f84\u3002<\/p>\n<p>BGP \u670d\u52a1\u5668\u5197\u4f59\u4f7f\u6545\u969c\u5207\u6362\u51b3\u7b56\u80fd\u591f\u6269\u5c55\u5230\u672c\u5730\u73af\u5883\u4e4b\u5916\u3002\u5b83\u4e0d\u4f9d\u8d56 DNS TTL\uff0c\u4e5f\u4e0d\u57fa\u4e8e\u9759\u6001\u5047\u8bbe\uff0c\u800c\u662f\u5728\u8def\u7531\u5c42\u5b9e\u65f6\u53cd\u6620\u670d\u52a1\u662f\u5426\u5065\u5eb7\u3002<\/p>\n<p>\u7ed3\u5408\u5065\u5eb7\u68c0\u67e5\u673a\u5236\u540e\uff0cBGP \u53ef\u4ee5\u786e\u4fdd\u53ea\u6709\u771f\u6b63\u53ef\u7528\u7684\u8282\u70b9\u624d\u4f1a\u5bf9\u5916\u901a\u544a\u670d\u52a1\u524d\u7f00\uff0c\u4ece\u800c\u907f\u514d\u8def\u7531\u9ed1\u6d1e\uff0c\u7f29\u77ed\u6536\u655b\u65f6\u95f4\uff0c\u5e76\u652f\u6301\u591a\u7ad9\u70b9\u6216 Anycast \u67b6\u6784\uff0c\u8ba9\u6d41\u91cf\u81ea\u52a8\u6d41\u5411\u6700\u8fd1\u6216\u6700\u5065\u5eb7\u7684\u8282\u70b9\u3002<\/p>\n<h2><strong>\u5c06 VRRP \u4e0e BGP \u7ed3\u5408\u7684\u81ea\u52a8\u5316\u6545\u969c\u5207\u6362\u8bbe\u8ba1<\/strong><\/h2>\n<p>\u6700\u5177\u97e7\u6027\u7684\u67b6\u6784\u4f1a\u540c\u65f6\u4f7f\u7528 VRRP \u6545\u969c\u5207\u6362\u4e0e BGP \u8def\u7531\u63a7\u5236\u3002VRRP \u8d1f\u8d23\u672c\u5730\u8282\u70b9\u7684\u4e3b\u5907\u89d2\u8272\uff0cBGP \u8d1f\u8d23\u5168\u7403\u8303\u56f4\u7684\u6d41\u91cf\u5bfc\u5411\u3002<\/p>\n<p>\u5e38\u89c1\u7684\u5b9e\u73b0\u65b9\u5f0f\u662f\u7ed3\u5408 keepalived \u7b49\u5de5\u5177\u6267\u884c\u5065\u5eb7\u68c0\u67e5\u3002VRRP \u7ba1\u7406\u865a\u62df IP\uff0c\u5e76\u5728\u72b6\u6001\u53d8\u5316\u65f6\u89e6\u53d1\u901a\u77e5\u811a\u672c\u3002\u8fd9\u4e9b\u811a\u672c\u6839\u636e\u8282\u70b9\u5904\u4e8e Master\u3001Backup \u6216 Fault \u72b6\u6001\uff0c\u542f\u52a8\u6216\u505c\u6b62 BGP \u5b88\u62a4\u8fdb\u7a0b\u3002\u8282\u70b9\u6210\u4e3a\u4e3b\u8282\u70b9\u65f6\uff0c\u540c\u65f6\u63a5\u7ba1 IP \u5e76\u5f00\u59cb\u901a\u544a\u8def\u7531\uff1b\u53d1\u751f\u6545\u969c\u65f6\uff0c\u5219\u540c\u6b65\u91ca\u653e\u4e8c\u8005\u3002<\/p>\n<p>\u8fd9\u79cd\u534f\u540c\u673a\u5236\u907f\u514d\u4e86\u8111\u88c2\u95ee\u9898\uff0c\u5e76\u786e\u4fdd\u8def\u7531\u72b6\u6001\u59cb\u7ec8\u4e0e\u5b9e\u9645\u670d\u52a1\u72b6\u6001\u4e00\u81f4\u3002\u6d41\u91cf\u53ea\u4f1a\u88ab\u5f15\u5bfc\u81f3\u771f\u6b63\u80fd\u591f\u5904\u7406\u8bf7\u6c42\u7684\u8282\u70b9\u3002<\/p>\n<h2><strong>\u5065\u5eb7\u68c0\u67e5\u662f\u667a\u80fd\u6545\u969c\u5207\u6362\u7684\u57fa\u7840<\/strong><\/h2>\n<p>\u81ea\u52a8\u5316\u6545\u969c\u5207\u6362\u7684\u51c6\u786e\u6027\uff0c\u53d6\u51b3\u4e8e\u89e6\u53d1\u5b83\u7684\u4fe1\u53f7\u8d28\u91cf\u3002\u4ec5\u4f9d\u8d56\u94fe\u8def\u72b6\u6001\u5df2\u4e0d\u8db3\u4ee5\u652f\u6491\u73b0\u4ee3\u5e94\u7528\u3002\u6709\u6548\u7684\u5b9e\u73b0\u4f1a\u68c0\u6d4b\u5e94\u7528\u8fdb\u7a0b\u3001\u670d\u52a1\u54cd\u5e94\uff0c\u751a\u81f3\u4e0b\u6e38\u4f9d\u8d56\u7684\u53ef\u7528\u6027\u3002<\/p>\n<p>\u901a\u8fc7\u81ea\u5b9a\u4e49\u5065\u5eb7\u68c0\u67e5\u811a\u672c\uff0c\u8fd0\u7ef4\u56e2\u961f\u53ef\u4ee5\u6e05\u6670\u5b9a\u4e49\u4ec0\u4e48\u624d\u7b97\u5065\u5eb7\u3002\u5f53\u68c0\u67e5\u8fde\u7eed\u5931\u8d25\u65f6\uff0c\u8282\u70b9\u8fdb\u5165 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