{"id":67468,"date":"2025-11-14T08:00:09","date_gmt":"2025-11-14T00:00:09","guid":{"rendered":"https:\/\/www.dataplugs.com\/?p=67468"},"modified":"2025-11-17T09:51:34","modified_gmt":"2025-11-17T01:51:34","slug":"multi-region-load-balancing-using-anycast-geoip-routing","status":"publish","type":"post","link":"https:\/\/www.dataplugs.com\/sc\/multi-region-load-balancing-using-anycast-geoip-routing\/","title":{"rendered":"\u591a\u533a\u57df\u8d1f\u8f7d\u5747\u8861\uff1a\u4f7f\u7528 Anycast\u3001GeoIP \u8def\u7531"},"content":{"rendered":"<p>\u968f\u7740\u5b9e\u65f6\u5206\u6790\u3001AI\/ML \u96c6\u7fa4\u548c\u9ad8\u901f\u91d1\u878d\u4ea4\u6613\u6108\u53d1\u666e\u53ca\uff0c\u4f01\u4e1a\u5bf9\u7f51\u7edc\u5ef6\u8fdf\u548c\u541e\u5410\u91cf\u7684\u8981\u6c42\u6301\u7eed\u6500\u5347\u3002\u4f20\u7edf\u4f9d\u8d56\u64cd\u4f5c\u7cfb\u7edf\u5185\u6838\u7684\u7f51\u7edc\u534f\u8bae\u6808\uff0c\u5728\u8ffd\u6c42\u5fae\u79d2\u7ea7\u54cd\u5e94\u548c\u6781\u81f4\u8ba1\u7b97\u6548\u7387\u7684\u573a\u666f\u4e0b\u5df2\u96be\u4ee5\u6ee1\u8db3\u9700\u6c42\u3002Kernel bypass networking\uff08\u5185\u6838\u65c1\u8def\u7f51\u7edc\u67b6\u6784\uff09\u7ed3\u5408 Remote Direct Memory Access\uff08RDMA\uff09\u4e0e RDMA over Converged Ethernet\uff08RoCE\uff09\uff0c\u6210\u4e3a\u73b0\u4ee3\u6570\u636e\u4e2d\u5fc3\u5b9e\u73b0\u9ad8\u6027\u80fd\u3001\u4f4e\u5ef6\u8fdf\u7f51\u7edc\u67b6\u6784\u7684\u6838\u5fc3\u6280\u672f\u3002<\/p>\n<h2><strong>\u6807\u51c6\u7f51\u7edc\u534f\u8bae\u6808\u7684\u5c40\u9650\u6027<\/strong><\/h2>\n<p>\u5728\u4f20\u7edf TCP\/IP \u7f51\u7edc\u67b6\u6784\u4e2d\uff0c\u6bcf\u4e2a\u6570\u636e\u5305\u90fd\u9700\u8981\u7ecf\u8fc7\u64cd\u4f5c\u7cfb\u7edf\u5185\u6838\u7684\u591a\u5c42\u7f51\u7edc\u534f\u8bae\u6808\uff0c\u6d89\u53ca\u591a\u6b21\u4e0a\u4e0b\u6587\u5207\u6362\uff08context switch\uff09\u3001\u7528\u6237\u7a7a\u95f4\u4e0e\u5185\u6838\u7a7a\u95f4\u7684\u6570\u636e\u62f7\u8d1d\uff0c\u4ee5\u53ca\u534f\u8bae\u5904\u7406\u5f00\u9500\u3002\u8fd9\u4e9b\u6d41\u7a0b\u4e0d\u4ec5\u5e26\u6765\u989d\u5916\u5ef6\u8fdf\uff0c\u8fd8\u6781\u5927\u5360\u7528 CPU \u8d44\u6e90\u3002\u5f53\u7f51\u7edc\u901f\u5ea6\u4ece 10Gbps \u63d0\u5347\u5230 100Gbps\u3001200Gbps \u751a\u81f3\u66f4\u9ad8\u65f6\uff0c\u5355\u4e2a\u6570\u636e\u5305\u7684\u53ef\u7528\u5904\u7406\u65f6\u95f4\u964d\u81f3\u7eb3\u79d2\u7ea7\uff0c\u5df2\u7ecf\u8fdc\u8fdc\u8d85\u51fa\u4f20\u7edf\u5185\u6838\u534f\u8bae\u6808\u7684\u80fd\u529b\u8303\u56f4\u3002<\/p>\n<h2><strong>Kernel Bypass Networking \u7684\u539f\u7406<\/strong><\/h2>\n<p>Kernel bypass networking \u8ba9\u5e94\u7528\u53ef\u4ee5\u76f4\u63a5\u4e0e\u7f51\u5361\uff08NIC\uff09\u4ea4\u4e92\uff0c\u628a\u64cd\u4f5c\u7cfb\u7edf\u5185\u6838\u4ece\u6570\u636e\u4f20\u8f93\u8def\u5f84\u4e2d\u79fb\u9664\u3002\u8be5\u6280\u672f\u901a\u8fc7\u5185\u5b58\u6ce8\u518c\u4e0e\u8d44\u6e90\u6620\u5c04\uff08memory registration &amp; mapping\uff09\uff0c\u5b9e\u73b0\u7528\u6237\u7a7a\u95f4\u4e0e NIC \u4e4b\u95f4\u7684\u96f6\u62f7\u8d1d\uff08zero-copy\uff09\u6570\u636e\u4f20\u8f93\uff0c\u6781\u5927\u964d\u4f4e\u5ef6\u8fdf\u3002<\/p>\n<p>RDMA \u662f\u5178\u578b\u7684 kernel bypass \u6280\u672f\uff0c\u5b9e\u73b0\u670d\u52a1\u5668\u95f4\u7684\u76f4\u63a5\u5185\u5b58\u8bbf\u95ee\uff0c\u65e0\u9700\u672c\u5730\u6216\u8fdc\u7aef CPU\u3001\u5185\u6838\u53c2\u4e0e\u3002\u5176\u6838\u5fc3\u662f\u5185\u5b58\u6ce8\u518c\u3001\u961f\u5217\u5bf9\uff08Queue Pairs, QP\uff09\u4e0e\u5b8c\u6210\u961f\u5217\uff08Completion Queue, CQ\uff09\uff0c\u90fd\u7531 RDMA \u7f51\u5361\uff08rNIC\uff09\u786c\u4ef6\u5904\u7406\u3002RoCE \u5219\u5c06 RDMA \u80fd\u529b\u5e94\u7528\u5230\u73b0\u6709\u4ee5\u592a\u7f51\u73af\u5883\uff0c\u8ba9\u4f01\u4e1a\u65e0\u9700\u66f4\u6362\u4e3b\u5e72\u7f51\u7edc\u5373\u53ef\u83b7\u5f97\u63a5\u8fd1 InfiniBand \u7684\u6027\u80fd\u3002<\/p>\n<h2><strong>RDMA \u4e0e RoCE \u7684\u5173\u952e\u6280\u672f\u89e3\u8bfb<\/strong><\/h2>\n<ul>\n<li><strong>\u5185\u5b58\u6ce8\u518c\u4e0e\u9501\u9875\uff08Pinning\uff09\uff1a<\/strong> \u6570\u636e\u4f20\u8f93\u524d\uff0c\u5e94\u7528\u9700\u5c06\u76ee\u6807\u5185\u5b58\u533a\u5757\u6ce8\u518c\u5230 rNIC\uff0c\u786e\u4fdd\u9875\u9762\u4e0d\u4f1a\u88ab swap\uff0c\u907f\u514d RDMA \u64cd\u4f5c\u4e2d\u65ad\u3002<\/li>\n<li><strong>\u961f\u5217\u5bf9\uff08Queue Pairs, QP\uff09\uff1a<\/strong> RDMA \u901a\u4fe1\u901a\u8fc7\u961f\u5217\u5bf9\u5b9e\u73b0\uff0c\u6bcf\u5bf9\u5305\u542b\u53d1\u9001\u548c\u63a5\u6536\u961f\u5217\uff0c\u5e94\u7528\u5c06\u5de5\u4f5c\u8bf7\u6c42\uff08Work Request, WR\uff09\u6295\u9012\u5230\u961f\u5217\uff0c\u7531 rNIC \u6267\u884c\u6570\u636e\u642c\u8fd0\u3002<\/li>\n<li><strong>\u5b8c\u6210\u961f\u5217\uff08Completion Queue, CQ\uff09\uff1a<\/strong> rNIC \u5904\u7406 WR \u540e\u4f1a\u5728 CQ \u4e0a\u56de\u62a5\u5b8c\u6210\u4e8b\u4ef6\uff0c\u5e94\u7528\u53ef\u53ca\u65f6\u83b7\u77e5\u4f20\u8f93\u72b6\u6001\uff0c\u65e0\u9700\u4f20\u7edf\u4e2d\u65ad\u3002<\/li>\n<li><strong>\u4f20\u8f93\u534f\u8bae\u9009\u62e9\uff1a<\/strong><\/li>\n<ul>\n<li><em>InfiniBand<\/em>\uff1a\u4e13\u4e3a RDMA \u8bbe\u8ba1\u7684\u4f4e\u5ef6\u8fdf\u534f\u8bae\uff0c\u9700\u4e13\u7528\u786c\u4ef6\uff0c\u6210\u672c\u8f83\u9ad8\u3002<\/li>\n<li><em>RoCEv1<\/em>\uff1a\u4e8c\u5c42\u534f\u8bae\uff0c\u9002\u7528\u4e8e\u5355\u4e00\u5e7f\u64ad\u57df\u3002<\/li>\n<li><em>RoCEv2<\/em>\uff1a\u4e09\u5c42\u534f\u8bae\uff0cUDP \u5c01\u88c5\u53ef\u8de8\u5b50\u7f51\uff0c\u9002\u7528\u591a\u7ad9\u70b9\u53ca\u4e91\u7aef\u90e8\u7f72\uff0c\u4f46\u9700\u65e0\u635f\u4ee5\u592a\u7f51\u652f\u6491\u3002<\/li>\n<\/ul>\n<li><strong>\u65e0\u635f\u4ee5\u592a\u7f51\uff08Lossless Ethernet\uff09\uff1a<\/strong> RoCE\uff08\u5c24\u5176\u662f RoCEv2\uff09\u8981\u6c42\u7f51\u7edc\u5c42\u5b8c\u5168\u65e0\u4e22\u5305\uff0c\u5426\u5219\u6027\u80fd\u4f1a\u5927\u5e45\u4e0b\u964d\u3002\u4e00\u822c\u901a\u8fc7 Data Center Bridging\uff08DCB\uff09\u6280\u672f\u5b9e\u73b0\uff0c\u5305\u62ec\uff1a<\/li>\n<ul>\n<li><em>Priority Flow Control (PFC)\uff1a<\/em> \u9488\u5bf9\u7279\u5b9a\u6d41\u91cf\u7c7b\u578b\uff08\u5982 RDMA\uff09\u8fdb\u884c\u6d41\u63a7\uff0c\u9632\u6b62\u7f13\u51b2\u533a\u6ea2\u51fa\u3002<\/li>\n<li><em>Explicit Congestion Notification (ECN)\uff1a<\/em> \u62e5\u585e\u9884\u8b66\uff0c\u7aef\u70b9\u4e3b\u52a8\u964d\u901f\uff0c\u907f\u514d\u4e22\u5305\u3002<\/li>\n<li><em>Enhanced Transmission Selection (ETS)\uff1a<\/em> \u5206\u914d\u5e26\u5bbd\uff0c\u4fdd\u969c RDMA \u6d41\u91cf\u4f18\u5148\u7ea7\u3002<\/li>\n<\/ul>\n<\/ul>\n<h2><strong>\u90e8\u7f72\u6b65\u9aa4\u4e0e\u57fa\u7840\u8bbe\u65bd\u89c4\u5212\u8981\u70b9<\/strong><\/h2>\n<ol>\n<li><strong>\u786c\u4ef6\u9009\u578b<\/strong><strong>\n<p><\/strong><\/li>\n<ul>\n<li>\u9009\u62e9\u5177\u5907 RDMA \u652f\u6301\u7684\u4f01\u4e1a\u7ea7\u7f51\u5361\uff08\u5982 Mellanox ConnectX\u3001Intel E810\uff09\u5e76\u786e\u4fdd\u4ee5\u592a\u7f51\u4ea4\u6362\u673a\u652f\u6301 DCB\u3002<\/li>\n<li>\u786e\u4fdd\u670d\u52a1\u5668\u5e73\u53f0\u6709\u5145\u8db3\u7684 PCIe \u5e26\u5bbd\uff0c\u907f\u514d\u4e3b\u677f\u74f6\u9888\u3002<\/li>\n<\/ul>\n<li><strong>\u7f51\u7edc\u67b6\u6784\u8bbe\u8ba1<\/strong><strong>\n<p><\/strong><\/li>\n<ul>\n<li>\u63a8\u8350\u91c7\u7528 leaf-spine \u67b6\u6784\uff0c\u4fdd\u8bc1\u4f4e\u5ef6\u8fdf\u548c\u9ad8\u7a33\u5b9a\u6027\u3002<\/li>\n<li>\u5229\u7528 VLAN \u6216 VRF\uff0c\u5c06 RDMA \u6d41\u91cf\u9694\u79bb\u4e8e\u666e\u901a\u4e1a\u52a1\u7f51\uff0c\u63d0\u5347\u9694\u79bb\u6027\u3002<\/li>\n<\/ul>\n<li><strong>\u5185\u5b58\u4e0e\u7f13\u51b2\u4f18\u5316<\/strong><strong>\n<p><\/strong><\/li>\n<ul>\n<li>\u914d\u7f6e\u5927\u5757\u8fde\u7eed\u5185\u5b58\u5e76\u76d1\u63a7\u6ce8\u518c\u4e0a\u9650\u3002<\/li>\n<li>\u8c03\u6574\u7cfb\u7edf\u53c2\u6570\uff08\u5982 Linux memlock\uff09\uff0c\u4ee5\u5bb9\u7eb3\u9ad8\u6d41\u91cf RDMA \u8d1f\u8f7d\u3002<\/li>\n<\/ul>\n<li><strong>\u65e0\u635f\u4ee5\u592a\u7f51\u8bbe\u7f6e<\/strong><strong>\n<p><\/strong><\/li>\n<ul>\n<li>\u5728\u6240\u6709\u4ea4\u6362\u673a\u4e0a\u542f\u7528 PFC \u4e0e ECN\uff0c\u5e76\u4e3a RDMA \u6d41\u91cf\u5206\u914d\u4e13\u6709\u4f18\u5148\u7ea7\u3002<\/li>\n<li>\u76d1\u63a7\u7f13\u51b2\u533a\u4f7f\u7528\u3001PFC \u6682\u505c\u4e8b\u4ef6\u548c ECN \u6807\u8bb0\uff0c\u6301\u7eed\u4f18\u5316\u8c03\u6574\u3002<\/li>\n<\/ul>\n<li><strong>RDMA \u8f6f\u4ef6\u6808\u4e0e\u5e94\u7528\u96c6\u6210<\/strong><strong>\n<p><\/strong><\/li>\n<ul>\n<li>\u5728\u6240\u6709\u4e3b\u673a\u4e0a\u5b89\u88c5\u5e76\u914d\u7f6e RDMA \u9a71\u52a8\u548c\u5e93\uff08\u5982 rdma-core\u3001libibverbs\uff09\u3002<\/li>\n<li>\u5e94\u7528\u9700\u652f\u6301 RDMA verbs API\uff0c\u6216\u901a\u8fc7 MPI\u3001NVMe-oF\u3001RDMA \u6570\u636e\u5e93\u7b49\u4e2d\u95f4\u4ef6\u96c6\u6210\u3002<\/li>\n<\/ul>\n<li><strong>\u6027\u80fd\u6d4b\u8bd5\u4e0e\u9a8c\u8bc1<\/strong><strong>\n<p><\/strong><\/li>\n<ul>\n<li>\u4f7f\u7528 ib_send_bw\u3001rping \u7b49\u5de5\u5177\u6d4b\u8bd5\u7aef\u5230\u7aef\u5ef6\u8fdf\u548c\u541e\u5410\u91cf\u3002<\/li>\n<li>\u6301\u7eed\u76d1\u63a7 CPU \u4f7f\u7528\u7387\u3001\u961f\u5217\u6df1\u5ea6\u548c CQ \u72b6\u6001\uff0c\u53ca\u65f6\u4f18\u5316\u74f6\u9888\u3002<\/li>\n<\/ul>\n<\/ol>\n<h2><strong>\u5e94\u7528\u573a\u666f\u4e0e\u4ef7\u503c<\/strong><\/h2>\n<ul>\n<li><strong>AI\/ML \u5206\u5e03\u5f0f\u8bad\u7ec3\uff1a<\/strong> RDMA \u52a0\u901f GPU \u4e0e\u8ba1\u7b97\u8282\u70b9\u95f4\u53c2\u6570\u540c\u6b65\uff0c\u7f29\u77ed\u6a21\u578b\u8bad\u7ec3\u5468\u671f\u3002<\/li>\n<li><strong>NVMe over Fabrics\uff08NVMe-oF\uff09\uff1a<\/strong> RoCE \u652f\u6301\u5b58\u50a8\u89e3\u8026\uff0c\u5b9e\u73b0\u8fdc\u7aef\u8bbf\u95ee\u8fd1\u4e4e\u672c\u5730 NVMe \u7684\u6027\u80fd\u3002<\/li>\n<li><strong>\u91d1\u878d\u4ea4\u6613\u7cfb\u7edf\uff1a<\/strong> Kernel bypass \u4fdd\u8bc1\u8ba2\u5355\u4e0e\u884c\u60c5\u4f20\u8f93\u5177\u5907\u6781\u4f4e\u4e14\u7a33\u5b9a\u7684\u5fae\u79d2\u7ea7\u5ef6\u8fdf\u3002<\/li>\n<li><strong>\u8d85\u878d\u5408\u57fa\u7840\u67b6\u6784\uff1a<\/strong> \u5982 VMware vSAN \u91c7\u7528 RoCE \u964d\u4f4e\u8282\u70b9\u95f4 IO \u5ef6\u8fdf\uff0c\u63d0\u5347\u865a\u62df\u5316\u6027\u80fd\u3002<\/li>\n<\/ul>\n<h2><strong>Dataplugs \u57fa\u7840\u8bbe\u65bd\u5982\u4f55\u652f\u6491 Kernel Bypass Networking<\/strong><\/h2>\n<p>\u8981\u771f\u6b63\u53d1\u6325 kernel bypass networking \u7684\u5168\u90e8\u4f18\u52bf\uff0c\u5fc5\u987b\u4f9d\u6258\u9ad8\u53ef\u9760\u3001\u9ad8\u6027\u80fd\u3001\u4e13\u4e3a RDMA \u8bbe\u8ba1\u7684\u57fa\u7840\u8bbe\u65bd\u3002Dataplugs \u63d0\u4f9b\u591a Tbps BGP \u7f51\u7edc\u4e3b\u5e72\u3001\u76f4\u8fde CN2 \u4f4e\u5ef6\u8fdf\u4e2d\u56fd\u7ebf\u8def\u53ca Tier-1 ISP \u4e92\u8054\uff0c\u786e\u4fdd RDMA \u4e0e RoCE \u90e8\u7f72\u62e5\u6709\u7a33\u5b9a\u3001\u9ad8\u5e26\u5bbd\u3001\u4f4e\u5ef6\u8fdf\u548c\u9ad8\u5b89\u5168\u6027\u7684\u7f51\u7edc\u73af\u5883\u3002<\/p>\n<p>Dataplugs \u6570\u636e\u4e2d\u5fc3\u914d\u5907\u4f01\u4e1a\u7ea7\u786c\u4ef6\u3001\u5145\u8db3 PCIe \u8d44\u6e90\u548c 7&#215;24 \u6280\u672f\u652f\u6301\uff0c\u9002\u5408 AI \u96c6\u7fa4\u3001NVMe-oF \u5b58\u50a8\u3001\u91d1\u878d\u4ea4\u6613\u7b49\u591a\u6837\u5316 RDMA \u5e94\u7528\u3002\u4f01\u4e1a\u53ef\u7075\u6d3b\u9009\u62e9 GPU\u3001NVMe\u3001RDMA NIC \u7b49\u914d\u7f6e\uff0c\u6ee1\u8db3\u5f39\u6027\u9ad8\u6548\u90e8\u7f72\u9700\u6c42\u3002<\/p>\n<h2><strong>\u603b\u7ed3<\/strong><\/h2>\n<p>Kernel bypass networking \u901a\u8fc7 RDMA \u548c RoCE\uff0c\u4e3a\u4f01\u4e1a\u63d0\u4f9b\u7a81\u7834\u6027\u4f4e\u5ef6\u8fdf\u3001\u9ad8\u6027\u80fd\u7684\u6570\u636e\u4e2d\u5fc3\u7f51\u7edc\u67b6\u6784\uff0c\u5f7b\u5e95\u6446\u8131\u4f20\u7edf\u5185\u6838\u534f\u8bae\u6808\u7684\u74f6\u9888\uff0c\u4e3a\u65b0\u4e00\u4ee3\u5b9e\u65f6\u8ba1\u7b97\u3001AI\u3001\u5927\u6570\u636e\u7b49\u5e94\u7528\u6253\u4e0b\u57fa\u7840\u3002\u53ea\u8981\u79d1\u5b66\u89c4\u5212\u3001\u7cbe\u7ec6\u8c03\u4f18\uff0c\u5e76\u7ed3\u5408\u5982 <a href=\"https:\/\/www.dataplugs.com\/sc\/\">Dataplugs<\/a> \u8fd9\u7c7b\u4e13\u4e1a\u57fa\u7840\u8bbe\u65bd\u4f19\u4f34\u652f\u6301\uff0c\u5373\u53ef\u5145\u5206\u91ca\u653e kernel bypass \u6280\u672f\u6f5c\u529b\uff0c\u628a\u63e1\u6570\u5b57\u5316\u8f6c\u578b\u5148\u673a\u3002\u5982\u9700\u66f4\u6df1\u5165\u7684 RDMA\u3001RoCE 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