{"id":176,"date":"2022-09-28T10:31:16","date_gmt":"2022-09-28T02:31:16","guid":{"rendered":"https:\/\/blog.taiyang.space\/?p=176"},"modified":"2022-10-16T21:42:22","modified_gmt":"2022-10-16T13:42:22","slug":"%e5%a4%9a%e5%8c%ba%e5%9f%9fospf","status":"publish","type":"post","link":"https:\/\/blog.taiyang.space\/?p=176","title":{"rendered":"\u591a\u533a\u57dfospf"},"content":{"rendered":"<h2>\u524d\u8a00<\/h2>\n<p>\u5728OSPF\u5355\u533a\u57df\u4e2d\uff0c\u6bcf\u53f0\u8def\u7531\u5668\u90fd\u8981\u6536\u96c6\u5176\u4ed6\u6240\u6709\u8def\u7531\u5668\u7684\u94fe\u8def\u72b6\u6001\u4fe1\u606f\uff0c\u968f\u7740\u7f51\u7edc\u89c4\u6a21\u7684\u4e0d\u65ad\u6269\u5927\uff0c\u4fe1\u606f\u91cf\u4e5f\u4f1a\u4e0d\u65ad\u589e\u52a0<\/p>\n<p>\u8fd9\u6837\u4e0b\u53bb\u6bcf\u53f0\u8def\u7531\u5668\u7684\u5de5\u4f5c\u91cf\u4f1a\u8d8a\u6765\u8d8a\u5927\uff0c\u4e43\u81f3\u4e8e\u6027\u80fd\u4e0b\u964d\uff0c\u5f71\u54cd\u6570\u636e\u8f6c\u53d1\uff0c\u4e0d\u4fbf\u4e8e\u7ba1\u7406<\/p>\n<p>\u4e3a\u4e86\u89e3\u51b3\u4e0a\u8ff0\u95ee\u9898,OSPF\u534f\u8bae\u53ef\u4ee5\u5c06\u6574\u4e2a\u81ea\u6cbb\u7cfb\u7edf\u5212\u5206\u4e3a\u4e0d\u540c\u7684\u533a\u57df<\/p>\n<p>\u8fd9\u5c31\u50cf\u4e00\u4e2a\u56fd\u5bb6\u7684\u56fd\u571f\u9762\u79ef\u8fc7\u5927\uff0c\u5355\u65b9\u9762\u7ba1\u7406\u5f88\u4e0d\u65b9\u4fbf\uff0c\u5c31\u4f1a\u5212\u5206\u4e3a\u4e0d\u540c\u7684\u7701\u4efd\u6765\u7ba1\u7406<\/p>\n<p>\u94fe\u8def\u72b6\u6001\u4fe1\u606f\u53ea\u5728\u533a\u57df\u5185\u90e8\u6cdb\u6d2a\uff0c\u533a\u57df\u4e4b\u95f4\u4f20\u9012\u7684\u53ea\u662f\u8def\u7531\u6761\u76ee\u800c\u975e\u94fe\u8def\u72b6\u6001\u4fe1\u606f\uff0c\u56e0\u6b64\u5927\u5927\u51cf\u5c0f\u4e86\u8def\u7531\u5668\u7684\u8d1f\u62c5\uff0c\u6709\u6548\u7684\u628a\u62d3\u6251\u53d8\u5316\u63a7\u5236\u5728\u533a\u57df\u5185\uff0c\u7531\u6b64\u63d0\u9ad8\u4e86\u7f51\u7edc\u7684\u7a33\u5b9a\u6027<\/p>\n<p>&nbsp;<\/p>\n<h2>1. ospf\u591a\u533a\u57df<\/h2>\n<h3>1.1 \u4f18\u70b9<\/h3>\n<p>\u5728\u524d\u8a00\u91cc\u8bf4\u660e\u4e86\u5355\u533a\u57dfOSPF\u7684\u5c40\u9650\u6027\u548c\u968f\u4e4b\u800c\u6765\u7684\u591a\u533a\u57dfOSPF\uff0c\u73b0\u6765\u603b\u7ed3\u4e00\u4e0b\u5176\u4f18\u70b9\uff1a<\/p>\n<ul>\n<li>\u63d0\u9ad8\u4e86\u7f51\u7edc\u7684\u6269\u5c55\u6027\uff0c\u6709\u5229\u4e8e\u7ec4\u5efa\u66f4\u5927\u89c4\u6a21\u7684\u7f51\u7edc<\/li>\n<li>\u5206\u533a\u57df\u540e\uff0c\u5404\u533a\u57df\u7ba1\u5404\u81ea\u7684\u533a\u57df\uff0c\u6548\u7387\u66f4\u9ad8\uff0c\u6536\u655b\u901f\u5ea6\u66f4\u5feb<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>1.2 ospf\u7684\u4e09\u79cd\u901a\u4fe1\u91cf<\/h3>\n<ul>\n<li>\u57df\u5185\u901a\u4fe1\u91cf\uff1a\u5355\u4e2a\u533a\u57df\u5185\u7684\u8def\u7531\u5668\u4e4b\u95f4\u4ea4\u6362\u6570\u636e\u5305\u6784\u6210\u7684\u901a\u4fe1\u91cf<\/li>\n<li>\u57df\u95f4\u901a\u4fe1\u91cf\uff1a\u4e0d\u540c\u533a\u57df\u7684\u8def\u7531\u5668\u4e4b\u95f4\u4ea4\u6362\u6570\u636e\u5305\u6784\u6210\u7684\u901a\u4fe1\u91cf<\/li>\n<li>\u5916\u90e8\u901a\u4fe1\u91cf\uff1aOSPF\u57df\u5185\u7684\u8def\u7531\u5668\u4e0eOSPF\u533a\u57df\u5916\uff0c\u6216\u4e0e\u53e6\u4e00\u4e2a\u81ea\u6cbb\u7cfb\u7edf\u5185\u7684\u8def\u7531\u5668\u4e4b\u95f4\u4ea4\u6362\u6570\u636e\u5305\u6784\u6210\u7684\u901a\u4fe1\u91cf<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>1.3 ospf\u7684\u8def\u7531\u5668\u7c7b\u578b<\/h3>\n<ol start=\"\">\n<li>DR\uff1a\u4e3b\u8def\u7531\uff08Area 0\uff09<\/li>\n<li>BDR\uff1a\u5907\u4efd\u8def\u7531<\/li>\n<li>ABR\uff1a\u533a\u57df\u8fb9\u754c\u8def\u7531\uff08\u53ef\u7406\u89e3\u4e3a\u4e24\u7701\u4e4b\u95f4\u7684\u9ad8\u901f\u5173\u53e3\uff09<\/li>\n<li>ASBR\uff1a\u81ea\u6cbb\u7cfb\u7edf\u8fb9\u754c\u8def\u7531\uff08\u53ef\u7406\u89e3\u4e3a\u6211\u56fd\u4e0e\u90bb\u56fd\u5370\u5ea6\u7684\u8fb9\u9632\u5173\u53e3\uff09<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<h3>1.4 \u533a\u57df\u7c7b\u578b<\/h3>\n<ol start=\"\">\n<li>\u9aa8\u5e72\u533a\u57df\uff1a\u5373\u4f20\u8f93\u533a\u57df\uff0cArea 0<\/li>\n<li>\u975e\u9aa8\u5e72\u533a\u57df &#8211; \u6839\u636e\u80fd\u591f\u5b66\u4e60\u7684\u8def\u7531\u79cd\u7c7b\u6765\u533a\u5206\uff08\u5373\u5e38\u89c4\u533a\u57df\uff0c\u9664\u4e86Area 0 \u4e4b\u5916\u7684\u5176\u4ed6\u6240\u6709\u8bb8\u53ef\u8303\u56f4\u5185\u7684\u533a\u57df\uff09\n<ul>\n<li>\u6807\u51c6\u533a\u57df\uff1a\u5373\u6b63\u5e38\u4f20\u8f93\u6570\u636e\u7684\u533a\u57df<\/li>\n<li>\u672b\u68a2\u533a\u57df\uff1a\u7981\u7528\u5916\u90e8AS\u7684\u4fe1\u606f\u8fdb\u5165\uff0c\u5373\u7981\u7528LSA 4,LSA 5\u7c7b\u4fe1\u606f\u8fdb\u5165<\/li>\n<li>\u5b8c\u5168\u672b\u68a2\u533a\u57df\uff1a\u7981\u7528\u5916\u90e8AS\u4fe1\u606f\u548c\u533a\u57df\u5185\u7684\u4fe1\u606f\uff0c\u5373LSA 5 \u548cLSA 3\u7c7b\u4fe1\u606f\u8fdb\u5165<\/li>\n<li>\u975e\u7eaf\u672b\u68a2\u533a\u57df\uff1a\u7981\u7528\u975e\u76f4\u8fde\u7684\u5916\u90e8AS\u4fe1\u606f\u8fdb\u5165\uff0c\u540c\u65f6\u4f1a\u4ea7\u751fLSA 7\u7c7b\u4fe1\u606f<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/PicGo20201105143045567.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p>&nbsp;<\/p>\n<h2>2. \u94fe\u8def\u72b6\u6001\u6570\u636e\u5e93<\/h2>\n<p>OSPF\u662f\u4e00\u79cd\u57fa\u4e8e\u94fe\u8def\u72b6\u6001\u7684\u52a8\u6001\u8def\u7531\u534f\u8bae\uff0c\u6bcf\u53f0OSPF\u90fd\u4f1a\u4ea7\u751f\u76f8\u5173\u7684LSA\uff0c\u5e76\u5c06\u8fd9\u4e9bLSA\u901a\u544a\u51fa\u53bb<br \/>\n\u8def\u7531\u5668\u6536\u5230LSA\u540e\uff0c\u4f1a\u5c06\u5b83\u4eec\u5b58\u653e\u5728\u94fe\u8def\u72b6\u6001\u6570\u636e\u5e93LSDB\u4e2d<\/p>\n<p>&nbsp;<\/p>\n<h3>2.1\u7ec4\u6210<\/h3>\n<ul>\n<li>\u6bcf\u4e2a\u8def\u7531\u5668\u90fd\u521b\u5efa\u4e86\u7531\u6bcf\u4e2a\u63a5\u53e3\u3001\u5bf9\u5e94\u7684\u76f8\u90bb\u8282\u70b9\u548c\u63a5\u53e3\u901f\u5ea6\u7ec4\u6210\u7684\u6570\u636e\u5e93<\/li>\n<li>\u94fe\u8def\u72b6\u6001\u6570\u636e\u5e93\u4e2d\u6bcf\u4e2a\u6761\u76ee\u79f0\u4e3aLSA\uff08\u94fe\u8def\u72b6\u6001\u901a\u544a\uff09\uff0c\u5e38\u89c1\u7684\u6709\u516d\u79cdLSA\u7c7b\u578b<\/li>\n<\/ul>\n<blockquote><p>\u5177\u4f53\u7684\u5728<a href=\"https:\/\/blog.taiyang.space\/?p=136\">ospf\u7b80\u8ff0<\/a>\u4e2d\u63d0\u8fc7<\/p><\/blockquote>\n<p>&nbsp;<\/p>\n<h3>2.2 \u94fe\u8def\u72b6\u6001\u901a\u544a\u7c7b\u578b<\/h3>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/PicGo20201105143831235.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p>&nbsp;<\/p>\n<h2>3. \u8def\u7531\u5668\u5bf9\u8def\u7531\u6761\u76ee\u7684\u9009\u62e9<\/h2>\n<p>\u8def\u7531\u5668\u53ea\u628a\u6700\u4f18\u7684\u8def\u7531\u6761\u76ee\u6dfb\u52a0\u5230\u8def\u7531\u8868<\/p>\n<p>\u9009\u62e9\u8def\u7531\u6761\u76ee\u7684\u4f9d\u636e\uff1a<\/p>\n<ul>\n<li>\u7ba1\u7406\u8ddd\u79bb<\/li>\n<li>\u5ea6\u91cf\u503c<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h2>4. \u672b\u68a2\u533a\u57df\u548c\u5b8c\u5168\u672b\u68a2\u533a\u57df<\/h2>\n<p>\u6ee1\u8db3\u4ee5\u4e0b\u6761\u4ef6\u7684\u533a\u57df<\/p>\n<ul>\n<li>\u53ea\u6709\u4e00\u4e2a\u9ed8\u8ba4\u8def\u7531\u4f5c\u4e3a\u5176\u533a\u57df\u7684\u51fa\u53e3<\/li>\n<li>\u533a\u57df\u4e0d\u80fd\u4f5c\u4e3a\u865a\u94fe\u8def\u7684\u7a7f\u8d8a\u533a\u57df<\/li>\n<li>Stub\u533a\u57df\uff08\u672b\u68a2\u533a\u57df\uff09\u91cc\u65e0\u81ea\u6cbb\u7cfb\u7edf\u8fb9\u754c\u8def\u7531\u5668ASBR<\/li>\n<li>\u4e0d\u662f\u9aa8\u5e72\u533a\u57dfArea 0<\/li>\n<\/ul>\n<h3>\u672b\u68a2\u533a\u57df<\/h3>\n<p>\u6ca1\u6709LSA4\u30015\u30017\u901a\u544a<\/p>\n<p>&nbsp;<\/p>\n<h3>\u5b8c\u5168\u672b\u68a2\u533a\u57df<\/h3>\n<p>\u9664\u4e00\u6761LSA3\u7684\u9ed8\u8ba4\u8def\u7531\u901a\u544a\u5916\uff0c\u6ca1\u6709LSA3\u30014\u30015\u30017\u901a\u544a<\/p>\n<p>&nbsp;<\/p>\n<h2>5. \u5b9e\u9a8c<\/h2>\n<h3>\u62d3\u6251\u56fe<\/h3>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/PicGoimage-20220928100135944.png\" referrerpolicy=\"no-referrer\" alt=\"image-20220928100135944\"><\/p>\n<p>\u5b9e\u9a8c\u5f00\u59cb\u524d\u5df2\u5c06R1\u3001R3-R5\u914d\u7f6e\u5b8c\u6210\uff08\u63a5\u53e3IP\u3001ospf\u5ba3\u544a\u7f51\u6bb5\uff09\uff0cR2\u6ca1\u6709\u8fdb\u884cospf\u7f51\u6bb5\u914d\u7f6e<\/p>\n<p>\u4e0b\u9762\u5b9e\u9a8c\u5f00\u59cb<\/p>\n<p>&nbsp;<\/p>\n<h3>ABR<\/h3>\n<p>\u533a\u57df\u8fb9\u754c\u8def\u7531\u5668\uff0c\u6307\u8def\u7531\u5668\u4e00\u8fb9\u8fde\u63a5\u9aa8\u5e72\u533a\u57df\uff08area0\uff09\uff0c\u4e00\u8fb9\u8fde\u63a5\u975e\u9aa8\u5e72\u533a\u57df\uff08area1\uff09<\/p>\n<p>\u6211\u4eec\u628aR2\u7684\u5de6\u8fb9\u8bbe\u4e3aarea1\uff0cR2\u7684\u53f3\u8fb9\u8bbe\u4e3aarea0<\/p>\n<p>\u63a5\u53e3IP\u914d\u7f6e\u76f4\u63a5\u7565\u8fc7<\/p>\n<p>&nbsp;<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/PicGo202209281101671.jpg\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p>\u53ef\u4ee5\u770b\u5230\u90bb\u63a5\u5173\u7cfb\u5df2\u7ecf\u8d77\u6765\u4e86<\/p>\n<p>&nbsp;<\/p>\n<p>\u8fd9\u65f6\u5019\u6211\u4eec\u770b\u4e00\u4e0bR2\u4e0a\u7684\u8def\u7531\u8868<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/PicGo202209281101636.jpg\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p>\u5b66\u4e60\u5230\u4e86\u6240\u6709\u7684\u8def\u7531\uff0c\u4e14\u901a\u8fc71\u7c7b\u62162\u7c7bLSA\u5b66\u4e60\u5230\u7684\uff0c\u4e0d\u5b58\u5728IA\u7c7b\u578b\u662f\u56e0\u4e3a\u5bf9R2\u800c\u8a00\u4e0d\u5b58\u5728\u5916\u90e8<\/p>\n<p>&nbsp;<\/p>\n<p>\u518d\u770bR1\u4e0a\u7684\u8def\u7531\u8868<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/PicGo202209281101700.jpg\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p>\u4e5f\u5b66\u4e60\u5230\u4e86\u6240\u6709\u8def\u7531\uff0c\u4f46\u662f\u662f\u901a\u8fc73\u7c7b\u62164\u7c7bLSA\u5b66\u4e60\u5230\u7684<\/p>\n<p>&nbsp;<\/p>\n<p>\u518d\u770bR3\u4e0a\u7684\u8def\u7531\u8868<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/PicGo202209281101746.jpg\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p>\u53ef\u4ee5\u770b\u51fa\u901a\u5f80R1\u7684\u8def\u7531\u662f\u901a\u8fc73\u7c7b\u62164\u7c7bLSA\u5b66\u4e60\u5230\u7684  \u95f4\u63a5\u8bf4\u660eR2\u662fABR<\/p>\n<p><strong>ABR\u5b9e\u9a8c\u7ed3\u675f<\/strong><\/p>\n<p>&nbsp;<\/p>\n<h3>ASBR<\/h3>\n<p>ASBR\u6709\u4e24\u79cd\u60c5\u51b5<\/p>\n<ol start=\"\">\n<li>\u6b21\u672b\u8282\u533a\u57df\u548c\u975eospf\u533a\u57df\u7684\u4e2d\u95f4<\/li>\n<li>\u975eospf\u533a\u57df\u548cospf\u533a\u57df\u4e2d\u95f4<\/li>\n<\/ol>\n<p>\u672c\u6b21\u5b9e\u9a8c\u53ea\u505a\u7b2c2\u79cd<\/p>\n<p>&nbsp;<\/p>\n<p>\u6211\u4eec\u5148\u628aR1\u4ee5\u53caR2\u5de6\u8fb9\u7684\u8def\u7531\u534f\u8bae\u6539\u4e3aRIP<\/p>\n<p>\u5148\u628a\u539f\u5148\u7684\u914d\u7f6eno\u6389<\/p>\n<p>R1\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/PicGowps15.jpg\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p>\u5bf9\u4e8eR1\u6211\u4eec\u76f4\u63a5\u628aospf\u8fdb\u7a0bno\u6389\uff0c\u53ef\u4ee5\u770b\u5230\u90bb\u63a5\u5173\u7cfb\u4e5fdown\u4e86<\/p>\n<p>&nbsp;<\/p>\n<p>R2\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/PicGowps16.jpg\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p>\u5bf9\u4e8eR2\u6211\u4eec\u628a\u5ba3\u544aR1\u6240\u5728\u7f51\u6bb5\u7684\u547d\u4ee4no\u6389<\/p>\n<p>&nbsp;<\/p>\n<p>\u8fd9\u65f6\u5019\u770bR2\u7684\u8def\u7531\u8868<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/PicGowps17.jpg\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p>\u5df2\u7ecf\u6ca1\u6709\u901a\u5f80R1\u7684\u8def\u7531\u4e86<\/p>\n<p>&nbsp;<\/p>\n<p>\u8fd9\u65f6\u5019\u914d\u7f6eRIP\u534f\u8bae<\/p>\n<p>R1:<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/PicGowps18.jpg\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p>&nbsp;<\/p>\n<p>R2:<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/PicGowps19.jpg\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p>&nbsp;<\/p>\n<p>\u8fd9\u65f6\u5019\u770b\u4e00\u4e0bR2\u7684\u8def\u7531\u8868<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/PicGowps20.jpg\" 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