{"id":1516,"date":"2021-01-19T11:21:38","date_gmt":"2021-01-19T03:21:38","guid":{"rendered":"https:\/\/www.microraindrop.com\/wordpress\/?p=1516"},"modified":"2021-01-20T12:39:18","modified_gmt":"2021-01-20T04:39:18","slug":"sdn","status":"publish","type":"post","link":"https:\/\/www.microraindrop.com\/wordpress\/solution\/securitysolution\/sdn.html","title":{"rendered":"SDN"},"content":{"rendered":"\n<p>\u8f6f\u4ef6\u5b9a\u4e49\u7f51\u7edc\uff08Software\u2002Defined\u2002Network\uff0cSDN\uff09\u662f\u7531\u7f8e\u56fd\u65af\u5766\u798f\u5927\u5b66clean-slate\u8bfe\u9898\u7814\u7a76\u7ec4\u63d0\u51fa\u7684\u4e00\u79cd\u65b0\u578b\u7f51\u7edc\u521b\u65b0\u67b6\u6784\uff0c\u662f\u7f51\u7edc\u865a\u62df\u5316\u7684\u4e00\u79cd\u5b9e\u73b0\u65b9\u5f0f\u3002\u5176\u6838\u5fc3\u6280\u672fOpenFlow\u901a\u8fc7\u5c06\u7f51\u7edc\u8bbe\u5907\u7684\u63a7\u5236\u9762\u4e0e\u6570\u636e\u9762\u5206\u79bb\u5f00\u6765\uff0c\u4ece\u800c\u5b9e\u73b0\u4e86\u7f51\u7edc\u6d41\u91cf\u7684\u7075\u6d3b\u63a7\u5236\uff0c\u4f7f\u7f51\u7edc\u4f5c\u4e3a\u7ba1\u9053\u53d8\u5f97\u66f4\u52a0\u667a\u80fd\uff0c\u4e3a\u6838\u5fc3\u7f51\u7edc\u53ca\u5e94\u7528\u7684\u521b\u65b0\u63d0\u4f9b\u4e86\u826f\u597d\u7684\u5e73\u53f0\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-style-default\"><a href=\"https:\/\/www.microraindrop.com\/wordpress\/wp-content\/uploads\/2021\/01\/2021011909201761.jpg\" alt=\"SDN\" title=\"SDN\"><img loading=\"lazy\" width=\"800\" height=\"450\" src=\"https:\/\/www.microraindrop.com\/wordpress\/wp-content\/uploads\/2021\/01\/2021011909201761.jpg\" alt=\"\" class=\"wp-image-1517\" srcset=\"https:\/\/www.microraindrop.com\/wordpress\/wp-content\/uploads\/2021\/01\/2021011909201761.jpg 800w, https:\/\/www.microraindrop.com\/wordpress\/wp-content\/uploads\/2021\/01\/2021011909201761-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/a><\/figure>\n\n\n\n<p>SDN\u63d0\u51fa\u63a7\u5236\u5c42\u9762\u7684\u62bd\u8c61\uff0c\u76ee\u524d\u7684MAC\u5c42\u548cIP\u5c42\u80fd\u505a\u5230\u5f88\u597d\u7684\u62bd\u8c61\u4f46\u662f\u5bf9\u4e8e\u63a7\u5236\u63a5\u53e3\u6765\u8bf4\u5e76\u6ca1\u6709\u4f5c\u7528\uff0c\u6211\u4eec\u4ee5\u5904\u7406\u9ad8\u590d\u6742\u5ea6\uff08\u56e0\u4e3a\u6709\u592a\u591a\u7684\u590d\u6742\u529f\u80fd\u52a0 \u5165\u5230\u4e86\u4f53\u7cfb\u7ed3\u6784\u5f53\u4e2d\uff0c\u6bd4\u5982OSPF\uff0cBGP\uff0c\u7ec4\u64ad\uff0c\u533a\u5206\u670d\u52a1\uff0c\u6d41\u91cf\u5de5\u7a0b\uff0cNAT\uff0c\u9632\u706b\u5899\uff0cMPLS\uff0c\u5197\u4f59\u5c42\u7b49\u7b49\uff09\u7684\u7f51\u7edc\u62d3\u6251\u3001\u534f\u8bae\u3001\u7b97\u6cd5\u548c\u63a7\u5236\u6765\u8ba9\u7f51\u7edc\u5de5 \u4f5c\uff0c\u6211\u4eec\u5b8c\u5168\u53ef\u4ee5\u5bf9\u63a7\u5236\u5c42\u8fdb\u884c\u7b80\u5355\u3001\u6b63\u786e\u7684\u62bd\u8c61\u3002SDN\u7ed9\u7f51\u7edc\u8bbe\u8ba1\u89c4\u5212\u4e0e\u7ba1\u7406\u63d0\u4f9b\u4e86\u6781\u5927\u7684\u7075\u6d3b\u6027\uff0c\u6211\u4eec\u53ef\u4ee5\u9009\u62e9\u96c6\u4e2d\u5f0f\u6216\u662f\u5206\u5e03\u5f0f\u7684\u63a7\u5236\uff0c\u5bf9\u5fae\u91cf\u6d41\uff08\u5982\u6821\u56ed \u7f51\u7684\u6d41\uff09\u6216\u662f\u805a\u5408\u6d41\uff08\u5982\u4e3b\u5e72\u7f51\u7684\u6d41\uff09\u8fdb\u884c\u8f6c\u53d1\u65f6\u7684\u6d41\u8868\u9879\u5339\u914d\uff0c\u53ef\u4ee5\u9009\u62e9\u865a\u62df\u5b9e\u73b0\u6216\u662f\u7269\u7406\u5b9e\u73b0\u3002<\/p>\n\n\n\n<h5>SDN\u7684\u57fa\u672c\u67b6\u6784<\/h5>\n\n\n\n<p>SDN\u91c7\u7528\u4e86\u96c6\u4e2d\u5f0f\u7684\u63a7\u5236\u5e73\u9762\u548c\u5206\u5e03\u5f0f\u7684\u8f6c\u53d1\u5e73\u9762\uff0c\u4e24\u4e2a\u5e73\u9762\u76f8\u4e92\u5206\u79bb\uff0c\u63a7\u5236\u5e73\u9762\u5229\u7528\u63a7\u5236\u2014\u8f6c\u53d1\u901a\u4fe1\u63a5\u53e3\u5bf9\u8f6c\u53d1\u5e73\u9762\u4e0a\u7684\u7f51\u7edc\u8bbe\u5907\u8fdb\u884c\u96c6\u4e2d\u5f0f\u63a7\u5236\uff0c\u5e76\u63d0\u4f9b\u7075\u6d3b\u7684\u53ef\u7f16\u7a0b\u80fd\u529b\uff0c\u5177\u5907\u4ee5\u4e0a\u7279\u70b9\u7684\u7f51\u7edc\u67b6\u6784\u90fd\u53ef\u4ee5\u88ab\u8ba4\u4e3a\u662f\u4e00\u79cd\u5e7f\u4e49\u7684SDN\u3002<br>\u5728SDN\u67b6\u6784\u4e2d\uff0c\u63a7\u5236\u5e73\u9762\u901a\u8fc7\u63a7\u5236\u2014\u8f6c\u53d1\u901a\u4fe1\u63a5\u53e3\u5bf9\u7f51\u7edc\u8bbe\u5907\u8fdb\u884c\u96c6\u4e2d\u63a7\u5236\uff0c\u8fd9\u90e8\u5206\u63a7\u5236\u4fe1\u4ee4\u7684\u6d41\u91cf\u53d1\u751f\u5728\u63a7\u5236\u5668\u4e0e\u7f51\u7edc\u8bbe\u5907\u4e4b\u95f4\uff0c\u72ec\u7acb\u4e8e\u7ec8\u7aef\u95f4\u901a\u4fe1\u4ea7\u751f\u7684\u6570\u636e\u6d41\u91cf\uff0c\u7f51\u7edc\u8bbe\u5907\u901a\u8fc7\u63a5\u6536\u63a7\u5236\u4fe1\u4ee4\u751f\u6210\u8f6c\u53d1\u8868\uff0c\u5e76\u636e\u6b64\u51b3\u5b9a\u6570\u636e\u6d41\u91cf\u7684\u5904\u7406\uff0c\u4e0d\u518d\u9700\u8981\u4f7f\u7528\u590d\u6742\u7684\u5206\u5e03\u5f0f\u7f51\u7edc\u534f\u8bae\u6765\u8fdb\u884c\u6570\u636e\u8f6c\u53d1\uff0c\u5982\u4e0b\u56fe\u6240\u793a\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-style-default\"><a href=\"https:\/\/www.microraindrop.com\/wordpress\/wp-content\/uploads\/2021\/01\/2021011909203863.png\" alt=\"SDN\" title=\"SDN\"><img loading=\"lazy\" width=\"554\" height=\"305\" src=\"https:\/\/www.microraindrop.com\/wordpress\/wp-content\/uploads\/2021\/01\/2021011909203863.png\" alt=\"\" class=\"wp-image-1518\"\/><\/a><\/figure>\n\n\n\n<p>SDN \u5e76\u4e0d\u662f\u67d0\u4e00\u79cd\u5177\u4f53\u7684\u7f51\u7edc\u534f\u8bae\uff0c\u800c\u662f\u4e00\u79cd\u7f51\u7edc\u4f53\u7cfb\u6846\u67b6\uff0c\u8fd9\u79cd\u6846\u67b6\u4e2d\u53ef\u4ee5\u5305\u542b\u591a\u79cd\u63a5\u53e3\u534f\u8bae\u3002\u5982\u4f7f\u7528OpenFlow\u7b49\u5357\u5411\u63a5\u53e3\u534f\u8bae\u5b9e\u73b0SDN \u63a7\u5236\u5668\u4e0e SDN \u4ea4\u6362\u673a\u7684\u4ea4\u4e92\uff0c\u4f7f\u7528\u5317\u5411 API\u5b9e\u73b0\u4e1a\u52a1\u5e94\u7528\u4e0e SDN 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class=\"wp-image-1519\"\/><\/a><\/figure>\n\n\n\n<p>ONF\u5b9a\u4e49\u7684\u67b6\u6784\u5171\u7531\u56db\u4e2a\u5e73\u9762\u7ec4\u6210\uff0c\u5373\u6570\u636e\u5e73\u9762\u3001\u63a7\u5236\u5e73\u9762\u3001\u5e94\u7528\u5e73\u9762\u4ee5\u53ca\u53f3\u4fa7\u7684\u63a7\u5236\u7ba1\u7406\u5e73\u9762\u3002\u5404\u5e73\u9762\u4e4b\u95f4\u4f7f\u7528\u4e0d\u540c\u7684\u63a5\u53e3\u534f\u8bae\u8fdb\u884c\u4ea4\u4e92\u3002<\/p>\n\n\n\n<p>1. \u6570\u636e\u5e73\u9762<br>\u7531\u82e5\u5e72\u738b\u5143\u7ec4\u6210\uff0c\u6bcf\u4e2a\u7f51\u5143\u53ef\u4ee5\u5305\u542b\u4e00\u4e2a\u6216\u591a\u4e2aSDN Datapath\u3002\u6bcf\u4e2aSDN Datapath\u662f\u4e00\u4e2a\u903b\u8f91\u4e0a\u7684\u7f51\u7edc\u8bbe\u5907\uff0c\u5b83\u6ca1\u6709\u63a7\u5236\u80fd\u529b\uff0c\u53ea\u662f\u5355\u7eaf\u7528\u6765\u8f6c\u53d1\u548c\u5904\u7406\u6570\u636e\uff0c\u5b83\u5728\u903b\u8f91\u4e0a\u4ee3\u8868\u5168\u90e8\u6216\u90e8\u5206\u7684\u7269\u7406\u8d44\u6e90\u3002\u4e00\u4e2aSDN Datapath\u5305\u542b\u63a7\u5236\u6570\u636e\u5e73\u9762\u63a5\u53e3\u4ee3\u7406\u3001\u8f6c\u53d1\u5f15\u64ce\u8868\u548c\u5904\u7406\u529f\u80fd\u4e09\u90e8\u5206\u3002<\/p>\n\n\n\n<p>2. \u63a7\u5236\u5e73\u9762<br>\u5373\u6240\u8c13\u7684SDN\u63a7\u5236\u5668\u3002SDN\u63a7\u5236\u5668\u662f\u4e00\u4e2a\u903b\u8f91\u4e0a\u96c6\u4e2d\u7684\u5b9e\u4f53\uff0c\u5b83\u4e3b\u8981\u8d1f\u8d23\u4e24\u4e2a\u4efb\u52a1\uff0c\u4e00\u662f\u5c06SDN\u5e94\u7528\u5c42\u8bf7\u6c42\u8f6c\u6362\u5230SDN Datapath\uff0c\u4e8c\u662f\u4e3aSDN\u5e94\u7528\u63d0\u4f9b\u5e95\u5c42\u7f51\u7edc\u7684\u62bd\u8c61\u6a21\u578b\uff08\u53ef\u4ee5\u662f\u72b6\u6001\u3001\u4e8b\u4ef6\uff09\u3002\u4e00\u4e2aSDN\u63a7\u5236\u5668\u5305\u542b\u5317\u5411\u63a5\u53e3\u4ee3\u7406\u3001SDN\u63a7\u5236\u903b\u8f91\u4ee5\u53ca\u63a7\u5236\u6570\u636e\u5e73\u9762\u63a5\u53e3\u9a71\u52a8\u4e09\u90e8\u5206\u3002SDN\u63a7\u5236\u5668\u53ea\u662f\u8981\u6c42\u903b\u8f91\u4e0a\u5b8c\u6574\uff0c\u56e0\u6b64\u5b83\u53ef\u4ee5\u7531\u591a\u4e2a\u63a7\u5236\u5668\u5b9e\u4f8b\u7ec4\u6210\uff0c\u4e5f\u53ef\u4ee5\u662f\u5c42\u7ea7\u5f0f\u7684\u63a7\u5236\u5668\u96c6\u7fa4\uff1b\u4ece\u5730\u7406\u4f4d\u7f6e\u4e0a\u8bb2\uff0c\u65e2\u53ef\u4ee5\u662f\u6240\u6709\u63a7\u5236\u5668\u5b9e\u4f8b\u5728\u540c\u4e00\u4f4d\u7f6e\uff0c\u4e5f\u53ef\u4ee5\u662f\u591a\u4e2a\u5b9e\u4f8b\u5206\u6563\u5728\u4e0d\u540c\u7684\u4f4d\u7f6e\u3002<\/p>\n\n\n\n<p>3. 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