{"id":136,"date":"2022-09-11T12:00:41","date_gmt":"2022-09-11T04:00:41","guid":{"rendered":"https:\/\/blog.taiyang.space\/?p=136"},"modified":"2023-01-17T19:43:56","modified_gmt":"2023-01-17T11:43:56","slug":"ospf%e7%ae%80%e8%bf%b0","status":"publish","type":"post","link":"https:\/\/blog.taiyang.space\/?p=136","title":{"rendered":"ospf\u7b80\u8ff0"},"content":{"rendered":"<h2>1. \u57fa\u672c\u6982\u5ff5<\/h2>\n<h3>\u6982\u8ff0<\/h3>\n<p>ospf\u4f7f\u7528\u7684\u7b97\u6cd5\u662f\uff1aDijkstra\u7b97\u6cd5\uff0c\u4e5f\u79f0SPF\uff08Shortest Path Frist  \u6700\u77ed\u8def\u5f84\u4f18\u5148\uff09\u3002\u6240\u4ee5ospf\u7684\u5168\u79f0\u4e3a\uff1a\u5f00\u653e\u5f0f\u6700\u77ed\u8def\u5f84\u4f18\u5148\uff08Open Shortest Path Frist\uff09\u3002<\/p>\n<p>\u5e38\u89c1\u7684ospf\u534f\u8bae\u6709\uff1aOSPFv2\u3001OSPFv3\u3002OSPFv3\u662f\u9762\u5411IPv6\u7684\u4e14\u4e0d\u517c\u5bb9IPv4\uff0c\u6240\u4ee5\u672c\u6587\u4e3b\u8981\u4ecb\u7ecdOSPFv2<\/p>\n<p>&nbsp;<\/p>\n<h3>\u7279\u70b9<\/h3>\n<p>\u94fe\u8def\u72b6\u6001\u8def\u7531\u534f\u8bae\u662f\u5c42\u6b21\u5f0f\u7684\uff0c\u7f51\u7edc\u4e2d\u7684\u8def\u7531\u5668\u5e76\u4e0d\u5411\u90bb\u5c45\u4f20\u9012\u201c\u8def\u7531\u9879\u201d\uff08\u5982RIP\u534f\u8bae\uff09\uff0c\u800c\u662f\u901a\u544a\u7ed9\u90bb\u5c45\u4e00\u4e9b\u94fe\u8def\u72b6\u6001\u3002\u8fd0\u884c\u8be5\u534f\u8bae\u7684\u8def\u7531\u5668\u628a\u7f51\u7edc\u4e2d\u6240\u6709\u8def\u7531\u5668\u5206\u6210\u533a\u57df\uff0c\u6536\u96c6\u533a\u57df\u5185\u6240\u6709\u8def\u7531\u5668\u7684\u94fe\u8def\u72b6\u6001\u4fe1\u606f\uff0c\u6839\u636e\u72b6\u6001\u4fe1\u606f\u4ea7\u751f\u7f51\u7edc\u62d3\u6251\u7ed3\u6784\uff0c\u6bcf\u4e00\u4e2a\u8def\u7531\u5668\u518d\u6839\u636e\u62d3\u6251\u7ed3\u6784\u8ba1\u7b97\u51fa\u8def\u7531\u3002\u8fd9\u5c31\u5bf9\u8def\u7531\u5668\u7684CPU\u548c\u5185\u5b58\u8981\u6c42\u6bd4\u8f83\u9ad8<\/p>\n<p>&nbsp;<\/p>\n<h3>\u5de5\u4f5c\u8fc7\u7a0b<\/h3>\n<ol start=\"\">\n<li>\u6bcf\u53f0\u8def\u7531\u5668\u5b66\u4e60\u6fc0\u6d3b\u7684\u76f4\u8fde\u7f51\u7edc<\/li>\n<li>\u6bcf\u53f0\u8def\u7531\u5668\u548c\u76f4\u63a5\u76f8\u8fde\u7684\u8def\u7531\u5668\u53d1\u9001hello\u62a5\u6587\uff0c\u5efa\u7acb\u90bb\u5c45\u5173\u7cfb<\/li>\n<li>\u6bcf\u53f0\u8def\u7531\u5668\u6784\u5efa\u94fe\u8def\u72b6\u6001\u6570\u636e\u5305\u5373 LSA \uff08Link-State Advertisement\uff0c\u94fe\u8def\u72b6\u6001\u901a\u544a\uff09\u3002\u94fe\u8def\u72b6\u6001\u901a\u544a(LSA)\u4e2d\u8bb0\u5f55\u4e86\u6240\u6709\u76f8\u5173\u7684\u8def\u7531\u5668\uff0c\u5305\u62ec\u90bb\u8def\u7531\u5668\u7684\u6807\u8bc6\u3001\u94fe\u8def\u7c7b\u578b\u3001\u5e26\u5bbd\u7b49\u3002<\/li>\n<li>\u6bcf\u53f0\u8def\u7531\u5668\u5c06\u6784\u5efa\u597d\u7684LSA\u6cdb\u6d2a\u7ed9\u90bb\u5c45\uff0c\u5e76\u4e14\u81ea\u5df1\u4e5f\u5728\u672c\u5730\u5b58\u50a8\u90bb\u5c45\u53d1\u9001\u8fc7\u6765\u7684LSA\uff0c\u7136\u540e\u518d\u5c06\u81ea\u5df1\u6536\u5230\u7684LSA\u6cdb\u6d2a\u7ed9\u6240\u6709\u90bb\u5c45\uff0c\u76f4\u5230\u540c\u4e00\u533a\u57df\u4e2d\u6240\u6709\u8def\u7531\u5668\u6536\u5230\u4e86\u6240\u6709LSA\u3002\u6bcf\u53f0\u8def\u7531\u5668\u5728\u672c\u5730\u6570\u636e\u5e93\u4e2d\u4fdd\u5b58\u6240\u6709\u6536\u5230\u7684LSA\u526f\u672c\uff0c\u8fd9\u4e2a\u6570\u636e\u5e93\u88ab\u79f0\u4f5c\u201c\u94fe\u8def\u72b6\u6001\u6570\u636e\u5e93\u201d\uff08LSDB\uff0cLink-State DataBase\uff09<\/li>\n<li>\u6bcf\u53f0\u8def\u7531\u5668\u57fa\u672c\u672c\u5730\u7684LSDB\u6267\u884c &#8220;\u6700\u77ed\u8def\u5f84\u4f18\u5148\u7b97\u6cd5&#8221;\uff08SPF\uff09\uff0c\u5e76\u4ee5\u672c\u5730\u8def\u7531\u5668\u4e3a\u6839\uff0c\u751f\u6210\u4e00\u4e2aSPF\u6811\uff0c\u57fa\u4e8e\u8fd9\u4e2aSPF\u6811\u8ba1\u7b97\u53bb\u5f80\u6bcf\u4e2a\u7f51\u7edc\u7684\u6700\u77ed\u8def\u5f84\uff0c\u4e5f\u5c31\u5f97\u5230\u4e86\u6700\u7ec8\u7684\u8def\u7531\u8868<\/li>\n<\/ol>\n<p>\u4e0b\u56fe\u6f14\u793a\u4e86ospf\u534f\u8bae\u8def\u7531\u8868\u7684\u751f\u6210\u8fc7\u7a0b<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/PicGo1662517562782-ef599103-946d-428c-8d59-d935aae65366.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<hr>\n<p>&nbsp;<\/p>\n<h2>2. \u4e13\u4e1a\u672f\u8bed<\/h2>\n<ul>\n<li><strong>\u94fe\u8def\uff08Link\uff09<\/strong>\uff1a\u5f53\u4e00\u4e2a\u63a5\u53e3\u52a0\u5165OSPF\u8fdb\u7a0b\uff0c\u5c31\u88ab\u5f53\u505a\u662fOSPF\u7684\u4e00\u6761\u94fe\u8def\u3002<\/li>\n<li><strong>\u94fe\u8def\u72b6\u6001\uff08Link-State\uff09<\/strong>\uff1a\u5305\u62ec\u63a5\u53e3\u7684IP\u3001\u5b50\u7f51\u3001\u7f51\u7edc\u7c7b\u578b\u3001\u94fe\u8def\u82b1\u8d39\u3001\u94fe\u8def\u4e0a\u7684\u90bb\u5c45\u7b49\u3002<\/li>\n<li><strong>\u8def\u7531\u5668ID\uff08Router ID\uff0c\u7b80\u79f0RID\uff09<\/strong>\uff1aRID\u662f\u4e00\u4e2a\u7528\u6765\u6807\u8bc6\u8def\u7531\u5668\u7684IP\u5730\u5740\uff0c\u53ef\u4ee5\u5728OSPF\u8def\u7531\u8fdb\u7a0b\u4e2d\u624b\u5de5\u6307\u5b9a\uff1b\u5982\u679c\u6ca1\u6709\u6307\u5b9a\uff0c\u8def\u7531\u5668\u9ed8\u8ba4\u9009\u62e9\u56de\u73af\u63a5\u53e3\u4e2d\u6700\u9ad8\u7684IP\u4f5c\u4e3aRID\uff1b\u5982\u679c\u6ca1\u6709\u56de\u73af\u5730\u5740\uff0c\u8def\u7531\u5668\u4f7f\u7528\u6240\u6709\u6fc0\u6d3b\u7684\u7269\u7406\u63a5\u53e3\u4e2d\u6700\u9ad8\u7684IP\u4f5c\u4e3aRID\u3002<\/li>\n<li><strong>\u90bb\u5c45\uff08Neighbor\uff09<\/strong>\uff1a\u4e24\u53f0\u6216\u591a\u53f0\u8def\u7531\u8fde\u63a5\u5728\u4e00\u4e2a\u516c\u5171\u7684\u7f51\u7edc\u4e0a\uff1b\u6bd4\u5982\u4e24\u53f0\u8def\u7531\u901a\u8fc7\u4e32\u884c\u7ebf\u8def\u76f8\u8fde\uff0c\u6216\u591a\u53f0\u8def\u7531\u901a\u8fc7\u4ee5\u592a\u7f51\u76f8\u8fde\u3002<\/li>\n<li><strong>\u90bb\u63a5\uff08Adjacency\uff09<\/strong>\uff1a\u90bb\u63a5\u662f\u4e24\u53f0\u8def\u7531\u5668\u4e4b\u95f4\u7684\u5173\u7cfb\uff0cOSPF\u53ea\u4e0e\u5efa\u7acb\u4e86\u90bb\u63a5\u5173\u7cfb\u7684\u90bb\u5c45\u5171\u4eab\u8def\u7531\u4fe1\u606f\u3002<\/li>\n<li><strong>\u533a\u57df\uff08Area\uff09<\/strong>\uff1aOSPF\u901a\u8fc7\u5212\u5206\u533a\u57df\u6765\u5b9e\u73b0\u5206\u5c42\u8bbe\u8ba1\uff0c\u8de8\u8d8a\u4e24\u4e2a\u6216\u4e24\u4e2a\u4ee5\u4e0a\u533a\u57df\u7684\u8def\u7531\u88ab\u79f0\u4f5cABR\uff08Area Border Router\uff0c\u533a\u57df\u8fb9\u754c\u8def\u7531\uff09\u3002\u6240\u6709\u7684\u533a\u57df\u90fd\u548c&#8221;Area 0&#8243;\u76f8\u8fde\uff0c&#8221;Area 0&#8243;\u88ab\u79f0\u4f5c\u9aa8\u5e72\u533a\u57df\uff0c\u9aa8\u5e72\u533a\u57df\u8def\u7531\u5668\u5177\u6709\u6574\u4e2a\u81ea\u5236\u7cfb\u7edf\u4e2d\u6240\u6709\u8def\u7531\u6761\u76ee\uff0cLSA\u7684\u6269\u6563\u4ec5\u9650\u5236\u5728\u533a\u57df\u5185\uff0c\u901a\u8fc7\u5212\u5206\u591a\u4e2a\u533a\u57df\u53ef\u4ee5\u51cf\u5c0fLSA\u6269\u6563\u8fc7\u7a0b\u4e2d\u5bf9\u786c\u4ef6\u7684\u8d1f\u62c5\u3002<\/li>\n<li><strong>\u6307\u5b9a\u8def\u7531\u5668\uff08Designated Router\uff0c\u7b80\u79f0DR\uff09<\/strong>\uff1a\u5f53OSPF\u94fe\u8def\u88ab\u8fde\u63a5\u5230\u591a\u8def\u8bbf\u95ee\u7684\u7f51\u7edc\u4e2d\u65f6\uff0c\u9700\u8981\u9009\u62e9\u4e00\u53f0\u6307\u5b9a\u8def\u7531\u5668\uff08DR\uff09\uff0c\u6bcf\u53f0\u8def\u7531\u5668\u90fd\u628a\u62d3\u6251\u53d8\u5316\u53d1\u7ed9DR\u548cBDR\uff0c\u7136\u540e\u7531DR\u901a\u77e5\u8be5\u591a\u8def\u8bbf\u95ee\u7f51\u7edc\u4e2d\u7684\u5176\u4ed6\u8def\u7531\u5668\u3002<\/li>\n<li><strong>\u5907\u7528\u7684\u6307\u5b9a\u8def\u7531\u5668\uff08Backup Designated Router,\u7b80\u79f0BDR\uff09<\/strong>\uff1a\u5f53DR\u53d1\u751f\u6545\u969c\u7684\u65f6\u5019\uff0cBDR\u8f6c\u53d8\u6210DR\uff0c\u63a5\u66ffDR\u5de5\u4f5c\u3002<\/li>\n<li>\u82b1\u8d39\uff08Cost\uff09\uff1aOSPF\u4e2d\u4f7f\u7528\u7684\u552f\u4e00\u5ea6\u91cf\u503c\uff0c\u4f7f\u7528\u94fe\u8def\u7684\u5e26\u5bbd\u8ba1\u7b97\u5f97\u6765\u3002<\/li>\n<\/ul>\n<hr>\n<p>&nbsp;<\/p>\n<h2>3. ospf\u7684\u7f51\u7edc\u7c7b\u578b<\/h2>\n<h3>\u70b9\u5230\u70b9<\/h3>\n<p>\u5c06\u4e00\u5bf9\u8def\u7531\u5668\u8fde\u63a5\u8d77\u6765\u7684\u7f51\u7edc\uff0c<strong>\u4f7f\u7528\u7684\u662fPPP HDLC\u534f\u8bae\uff08Point to Point Protocol\uff09<\/strong><br \/>\n\u4f7f\u7528\u7ec4\u64ad224.0.0.5\u6765\u53d1\u9001\u5404\u79cd\u6570\u636e\u5305<br \/>\n<strong>\u6ca1\u6709DR\/BDR\u7684\u9009\u4e3e\uff0c\u76f4\u63a5\u5f62\u6210full\u90bb\u63a5\u5173\u7cfb\uff0c\u4e0d\u7528\u624b\u52a8\u6307\u90bb\u5c45<\/strong><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/PicGo1662519416872-f53eeb56-b2f1-4b67-8a6c-92c19645ca0c.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p>&nbsp;<\/p>\n<h3>\u5e7f\u64ad<\/h3>\n<p>\u591a\u8def\u8bbf\u95ee\u7f51\u7edc\uff0c\u5982\u4ee5\u592a\u7f51\uff0c\u9700\u8981DR\u548cBDR\u7684\u9009\u4e3e\uff0c\u4e0d\u7528\u624b\u52a8\u6307\u90bb\u5c45<\/p>\n<p>\u901a\u5e38\u4ee5\u7ec4\u64ad\u53d1\u9001HELLO\u62a5\u6587\uff0cLSU\u62a5\u6587\uff0c\u548cLSACK\u62a5\u6587\uff0c\u4ee5\u5355\u64ad\u5f62\u5f0f\u53d1\u9001DD\u548cLSR\u62a5\u6587<\/p>\n<p>DR\u548cBDR\u7ed9\u975e\u6307\u5b9a\u8def\u7531\u5668\u53d1\u9001\u6d88\u606f\u4f7f\u7528\u7684\u662f\u7ec4\u64ad224.0.0.5<\/p>\n<p>\u975e\u6307\u5b9a\u8def\u7531\u5668\u7ed9DR\u548cBDR\u53d1\u9001\u6d88\u606f\u4f7f\u7528\u7684\u662f\u7ec4\u64ad224.0.0.6<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/PicGo1662519432130-47f2577c-0d9a-4816-bdc8-3eaa618a9fdf.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p>&nbsp;<\/p>\n<h3>\u975e\u5e7f\u64ad\u591a\u8def\u8bbf\u95ee<\/h3>\n<p>NBMA\uff0c Non-Broadcast Multiple Access<\/p>\n<p>\u8fde\u63a5\u7684\u8def\u7531\u5668\u8d85\u8fc7\u4e24\u53f0\u4f46\u662f\u6ca1\u6709\u5e7f\u64ad\u529f\u80fd\uff0c\u5e27\u4e2d\u7ee7\u7f51\u7edc\u548cATM\u7f51\u7edc<br \/>\n<strong>\u6240\u6709\u6570\u636e\u5305\u5747\u5355\u64ad\u53d1\u9001\uff0c\u6709DR\u7684\u9009\u4e3e\uff0c\u9700\u8981\u624b\u52a8\u6307\u5b9a\u90bb\u5c45<\/strong><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/PicGo1662519525801-60db99f3-959b-41a7-b46f-8bae2e08750d.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p>&nbsp;<\/p>\n<h3>\u70b9\u5230\u591a\u70b9<\/h3>\n<p>Hello\u5305\u4ee5\u7ec4\u64ad\u5f62\u5f0f\u53d1\u9001\uff0c\u5176\u4ed6\u7c7b\u578b\u6570\u636e\u5305\u7531\u5355\u64ad\u53d1\u9001<br \/>\n<strong>\u4e0d\u9009\u4e3eDR\uff0c\u4e0d\u7528\u624b\u52a8\u6307\u90bb\u5c45<\/strong><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/PicGo1662519801242-d014870f-34da-457a-acaf-ddcd8971b4ab.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<hr>\n<p>&nbsp;<\/p>\n<h2>4. ospf\u62a5\u6587\u7c7b\u578b<\/h2>\n<p>ospf\u76f4\u63a5\u5c01\u88c5\u5728IP\u6570\u636e\u5305\u4e2d<\/p>\n<p>&nbsp;<\/p>\n<h3>Hello\u5305<\/h3>\n<p><strong>\u4f5c\u7528\uff1a\u5efa\u7acb\u90bb\u5c45\u5173\u7cfb<\/strong><\/p>\n<p>\u5404\u5b57\u6bb5\u529f\u80fd\uff1a<\/p>\n<ul>\n<li>Network Mask \uff1a\u53d1\u9001\u6570\u636e\u5305\u7684\u6e90IP\u5730\u5740\u5bf9\u5e94\u7684\u5b50\u7f51\u63a9\u7801<\/li>\n<li>Hellointerval\uff1aHello\u65f6\u95f4\u95f4\u9694\uff0c\u9ed8\u8ba410S\uff0c\u5931\u6548\u95f4\u9694\u9ed8\u8ba4\u4e3aHello\u95f4\u9694\u76843\u500d<\/li>\n<li>Rtr Pri\uff1a\u8def\u7531\u5668\u4f18\u5148\u7ea7\u7528\u4e8e\u9009\u4e3eDR\u548cBDR<\/li>\n<li>DR\uff1a\u6307\u5b9a\u8def\u7531\u5668\u7684IP\u5730\u5740\uff0c\u5f00\u59cb\u65f6\u4e3a\u7a7a<\/li>\n<li>BDR\uff1a\u5907\u4efd\u6307\u5b9a\u8def\u7531\u5668\u7684IP\u5730\u5740\uff0c\u5f00\u59cb\u662f\u4e5f\u4e3a\u7a7a<\/li>\n<li>Neighbor\uff1a\u91cc\u9762\u6807\u8bc6\u4e86\u90bb\u5c45\u7684\u8def\u7531\u5668ID\uff0c\u53ef\u4ee5\u8868\u793a\u591a\u4e2a\u90bb\u5c45<\/li>\n<li>Stub and Flag \uff1a\u672b\u8282\u6807\u8bc6\u7b26<\/li>\n<\/ul>\n<p>\u90bb\u5c45\u5173\u7cfb\u5efa\u7acb\u6761\u4ef6\uff1aHELLO\u548c\u5931\u6548\u95f4\u9694\u8981\u4e00\u81f4\uff0c\u533a\u57df\u53f7\u8981\u76f8\u540c\uff0c\u533a\u57df\u672b\u8282\u6807\u8bc6\u7b26\u8981\u76f8\u540c\uff0c\u6709\u8ba4\u8bc1\u7684\u8bdd\uff0c\u8ba4\u8bc1\u8981\u76f8\u540c\uff0c\u533a\u57dfID\u8981\u76f8\u540c\uff0c\u5b50\u7f51\u63a9\u7801\u8981\u4e00\u81f4<\/p>\n<p>&nbsp;<\/p>\n<h3>DBD\u5305\uff08Dadabase Description\uff09<\/h3>\n<p><strong>\u4f5c\u7528\uff1a\u5728OSPF\u90bb\u5c45\u5173\u7cfb\u5efa\u7acb\u4e4b\u540e\uff0cDBD\u5305\u8d1f\u8d23\u63cf\u8ff0\u672c\u5730\u7684LSDB\uff0c\u63a5\u6536\u5230\u7684\u8def\u7531\u5668\u901a\u8fc7\u548c\u81ea\u5df1\u7684LSDB\u505a\u6bd4\u5bf9\uff0c\u8fdb\u800c\u540c\u6b65\u533a\u57df\u4e2d\u7684LSDB<\/strong><\/p>\n<p>\u5404\u5b57\u6bb5\u529f\u80fd<\/p>\n<ul>\n<li>I\uff1a\u8be5\u4f4d\u7f6e1\u8868\u793a\u8fd9\u662f\u53d1\u9001\u7684\u7b2c\u4e00\u4e2a\u6570\u636e\u5305\uff0c\u5f00\u542f\u4e86LSDB\u540c\u6b65\u8fc7\u7a0b<\/li>\n<li>M\uff1a\u8be5\u4f4d\u7f6e1\u8868\u793a\u4e4b\u540e\u8fd8\u6709DD\u5305\u8981\u53d1\u9001\uff0c\u82e5\u7f6e0\u5219\u8868\u793a\u6ca1\u6709\u6570\u636e\u5305\u8981\u53d1\u9001\u4e86<\/li>\n<li>MS\uff1a\u7528\u6765\u8868\u793a\u8c01\u662f\u4e3b\uff08Master\uff09\u8c01\u662f\u4ece\uff08Slave\uff09\u7531\u4e3b\u8def\u7531\u5668\u5f15\u5bfc\u8fdb\u884cLSDB\u7684\u540c\u6b65<\/li>\n<li>DD Sequence Number\uff1a\u5229\u7528\u5e8f\u53f7\u6765\u786e\u4fdd\u4f20\u8f93\u7684\u5b8c\u6574\u6027\u548c\u53ef\u9760\u6027<\/li>\n<li>LSA Headers\uff1aLSA\u5934\u90e8\u4fe1\u606f\u6458\u8981\uff0c\u53ef\u4ee5\u6709\u591a\u4e2aLSA\u5934\u90e8\u6458\u8981\u4fe1\u606f<\/li>\n<\/ul>\n<p><a href=\"https:\/\/blog.csdn.net\/qq_40741808\/article\/details\/105668045\"><br \/>\n<\/a><\/p>\n<h3>LSR\u5305\uff08Link-State Request\uff09<\/h3>\n<p><strong>\u4f5c\u7528\uff1a\u7528\u6765\u67e5\u8be2\u672cLSDB\u4e2d\u6ca1*<\/strong>*\u6709\u6216\u8005\u54ea\u4e9bLSA\u662f\u5df2\u7ecf\u5931\u6548\u7684**<\/p>\n<p>\u5404\u5b57\u6bb5\u529f\u80fd\uff1a<\/p>\n<ul>\n<li>LS type\uff1a\u6307\u5b9a\u6240\u8bf7\u6c42\u7684LSA\u7c7b\u578b\uff0c\u4e00\u5171\u67097\u7c7b<\/li>\n<li>Link State ID\uff1a\u7528\u6765\u8868\u793aLSA\uff0c\u6839\u636eLSA\u79cd\u7c7b\u7684\u4e0d\u540c\uff0c\u6709\u4e0d\u540c\u7684\u542b\u4e49<\/li>\n<li>Advertising Router\uff1a\u7528\u6765\u8868\u793a\u4ea7\u751f\u6b64LSA\u7684\u8def\u7531\u5668ID<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>LSU\u5305\uff08Link-State Update\uff09<\/h3>\n<p><strong>\u4f5c\u7528\uff1a\u5bf9LSR\u8fdb\u884c\u56de\u5e94\uff0c\u6216\u8005\u5b9a\u65f6\u53d1\u9001LSU\u6765\u66f4\u65b0\u533a\u57df\u4e2d\u7684LSDB\uff0c\u53d1\u9001\u7684\u662f\u771f\u6b63\u9700\u8981\u7684LSA\u7684\u5185\u5bb9<\/strong><\/p>\n<p>\u5404\u5b57\u6bb5\u529f\u80fd\uff1a<\/p>\n<ul>\n<li>Number of LSA\uff1a\u6307\u5b9a\u6b64\u62a5\u6587\u4e2d\u5171\u53d1\u9001\u7684LSA\u6570\u91cf<\/li>\n<li>LSAs\uff1a\u4e00\u6761\u6761\u5177\u4f53\u7684LSA\u5b8c\u6574\u7684\u4fe1\u606f\uff0c\u53ef\u4ee5\u6709\u591a\u4e2aLSA\u7684\u4fe1\u606f<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>LSAck\u5305\uff08Link-State Acknowledgedment\uff09<\/h3>\n<p><strong>\u4f5c\u7528\uff1a\u7528\u6765\u5728\u6536\u5230\u5bf9\u7aef\u53d1\u9001\u7684LSU\u4e4b\u540e\u8fd4\u56de\u7684\u786e\u8ba4\u62a5\u6587\uff0c\u5185\u5bb9\u662f\u9700\u8981\u786e\u8ba4\u7684LSA\u5934\u90e8<\/strong><\/p>\n<p>\u5404\u5b57\u6bb5\u529f\u80fd\uff1a<\/p>\n<ul>\n<li>LSA Headers\uff1aLSA\u5934\u90e8\u4fe1\u606f<\/li>\n<li>\u4e00\u4e2aACK\u53ef\u4ee5\u786e\u8ba4\u591a\u4e2aLSA<\/li>\n<\/ul>\n<hr>\n<p>&nbsp;<\/p>\n<h2>5. LSA<\/h2>\n<p>Link State Advertisement\uff0c\u94fe\u8def\u72b6\u6001\u901a\u544a\uff0c\u8def\u7531\u5668\u53d1\u51fa\u7684\u5173\u4e8e\u7f51\u7edc\u7ed3\u6784\u7684\u901a\u544a\uff0c\u63cf\u8ff0\u4e86\u94fe\u8def\u6216\u63a5\u53e3\u7684\u72b6\u6001\u53ca\u6bcf\u6761\u94fe\u8def\u7684\u6210\u672c<\/p>\n<p>LSA\u662f\u4e00\u79cd\u6570\u636e\u7ed3\u6784\uff0c<strong>\u4fdd\u5b58\u5728LSDB\u4e2d<\/strong>\uff0c<strong>\u627f\u8f7d\u5728LSU\u4e2d\u7136\u540e\u53d1\u9001\u51fa\u53bb<\/strong>\uff0cLSDB\u4e2d\u4f1a\u5b58\u50a8\u4e0e\u7f51\u7edc\u6709\u5173\u7684\u4e00\u7cfb\u5217\u5c5e\u6027\u3002<\/p>\n<p>LSA\u53ea\u80fd\u7531\u53d1\u8d77\u8fd9\u4e2aLSA\u7684\u8def\u7531\u5668\u8fdb\u884c\u64cd\u4f5c\u548c\u66f4\u65b0\u6216\u8005\u662f\u64a4\u9500\uff0c\u522b\u7684\u8def\u7531\u5668\u4e0d\u5f97\u5bf9\u5176\u8fdb\u884c\u64cd\u4f5c\uff0c<strong>\u53ea\u80fd\u5bf9\u5176\u8fdb\u884c\u6cdb\u6d2a<\/strong>\uff0c\u4e0d\u80fd\u963b\u585e\u8fd9\u4e2aLSA\uff0c\u4e5f\u4e0d\u80fd\u5728\u8fd9\u4e2aLSA\u7684\u6700\u5927\u65f6\u957f\u8ba1\u65f6\u5668\u524d\u4e22\u5f03\u8fd9\u4e2aLSA\u3002<\/p>\n<hr>\n<p>&nbsp;<\/p>\n<h2>6. DR\u548cBDR\u9009\u4e3e\u89c4\u5219<\/h2>\n<p>\u9996\u5148\u7528\u4e0b\u9762\u7684\u56fe\u6765\u8bf4\u660e\u4e00\u4e0b\u4e3a\u4ec0\u4e48\u591a\u8def\u8bbf\u95ee\u7684\u4ee5\u592a\u7f51\u4e2d\u9700\u8981\u9009\u4e3eDR\u548cBDR\uff0c\u9009\u4e3e\u5b83\u4eec\u6709\u4ec0\u4e48\u597d\u5904\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/PicGo1662525949079-320f5985-df86-425f-88e6-192d234c7fa5.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p>\u5728\u4e0a\u56fe\u7684\u591a\u8def\u8bbf\u95ee\u7684\u7f51\u7edc\u4e2d\uff0c\u5982\u679c\u6ca1\u6709\u9009\u4e3eDR\u548cBDR\uff0c\u4e3a\u4e86\u4ea4\u4e92\u8def\u7531\u4fe1\u606f\uff0c\u6bcf\u53f0\u8def\u7531\u5668\u90fd\u9700\u8981\u548c\u5176\u4ed6\u8def\u7531\u5efa\u7acb\u90bb\u63a5\u5173\u7cfb\uff0c\u5c31\u4f1a\u670910\u4e2a\u90bb\u63a5\u5173\u7cfb\uff0c\u5982\u679c\u5176\u4e2d\u4e00\u53f0\u8def\u7531\u79bb\u5f00\uff0c\u8981\u548c\u6240\u6709\u7684\u8def\u7531\u65ad\u5f00\u90bb\u63a5\u5173\u7cfb\uff0c\u65b0\u7684\u8def\u7531\u52a0\u5165\uff0c\u4e5f\u9700\u8981\u548c\u6240\u6709\u8def\u7531\u5efa\u7acb\u90bb\u63a5\u5173\u7cfb\uff0c\u8fd9\u6837\u4f1a\u5f71\u54cd\u6536\u655b\u6548\u7387\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u5982\u679c\u9009\u4e3e\u4e86DR\u548cBDR\uff0c\u90a3\u4e48\u6240\u6709DROther\u8def\u7531\u5668\u53ea\u9700\u8981\u548cDR\u4ee5\u53caBDR\u5efa\u7acb\u90bb\u63a5\u5173\u7cfb\u5373\u53ef<\/p>\n<p>&nbsp;<\/p>\n<p>\u9009\u4e3e\u89c4\u5219\uff1a<\/p>\n<ol start=\"\">\n<li>OSPF\u8def\u7531\u5668\u9009\u62e9\u7f51\u7edc\u4e2d\u63a5\u53e3\u4f18\u5148\u7ea7\u6700\u9ad8\u7684\u8def\u7531\u5668\u4e3aDR\uff0c\u63a5\u53e3\u4f18\u5148\u7ea7\u6b21\u9ad8\u7684\u8def\u7531\u5668\u4e3aBDR\uff0c\u4ee5\u592a\u7f51\u63a5\u53e3\u9ed8\u8ba4\u7684\u4f18\u5148\u7ea7\u90fd\u4e3a1\uff0c\u4e32\u884c\u7ebf\u8def\u4e0d\u9700\u8981\u9009\u4e3e\u6240\u4ee5\u662f0\u3002\u4e5f\u53ef\u4ee5\u624b\u5de5\u6307\u5b9a: \u8fdb\u5165\u53c2\u52a0\u9009\u4e3e\u7684\u63a5\u53e3\uff0cip ospf priorty 0<\/li>\n<li>\u5982\u679c\u4f18\u5148\u7ea7\u76f8\u540c\uff0c\u5c06\u4f7f\u7528RID\u6700\u9ad8\u7684\u4e3aDR\uff0c\u6b21\u9ad8\u7684\u4e3aBDR\u3002<\/li>\n<li>\u5148\u6765\u5148\u662f<\/li>\n<\/ol>\n<hr>\n<p>&nbsp;<\/p>\n<h2>7. \u90bb\u63a5\u5efa\u7acb\u8fc7\u7a0b<\/h2>\n<p>\u9996\u5148\u5bf9\u90bb\u5c45\u5173\u7cfb\uff0c\u548c\u90bb\u63a5\u5173\u7cfb\u8981\u533a\u5206\u5f00\uff0c\u4e24\u53f0\u8def\u7531\u5668\u4e92\u76f8\u4e4b\u95f4\u7684\u72b6\u6001\u662f<strong>2-way\u5219\u8868\u660e\u90bb\u5c45\u5173\u7cfb\u5efa\u7acb<\/strong>\uff0c\u5f53\u90bb\u5c45\u5173\u7cfb\u4e3a<strong>FULL\u662f\u8868\u660e\u90bb\u63a5\u5173\u7cfb\u5efa\u7acb<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p><strong>\u5173\u7cfb\u53d8\u6362\u8fc7\u7a0b<\/strong><\/p>\n<p><strong>down-&gt;init-&gt;2-way-&gt;exstart-&gt;exchange-&gt;loading-&gt;full<\/strong><\/p>\n<p>\u56fe\u89e3\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/PicGo1662520906495-5856a414-016b-45c0-aa5e-fb808e7741fe.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<ul>\n<li>down:\u8868\u793a\u8fd8\u6ca1\u6709\u5efa\u7acb\u8d77\u90bb\u63a5\u5173\u7cfb\uff0c\u6ca1\u6709\u68c0\u6d4b\u5230\u6d3b\u52a8\u90bb\u5c45<\/li>\n<li>init\uff1a\u8868\u793a\u4ece\u5bf9\u7aef\u6536\u5230\u7684HELLO\u5305\u4e2d\uff0c\u6ca1\u6709\u81ea\u5df1\u7684\u8def\u7531\u5668ID\u4fe1\u606f<\/li>\n<li>2-way\uff1a\u8868\u793a\u4ece\u5bf9\u7aef\u6536\u5230\u7684HELLO\u5305\u4e2d\uff0c\u5df2\u7ecf\u6709\u81ea\u5df1\u7684\u8def\u7531\u5668ID\u4fe1\u606f\u4e86\uff0c\u5df2\u5efa\u7acb\u90bb\u5c45\u5173\u7cfb\u53ef\u4ee5\u5171\u4eab\u94fe\u8def\u72b6\u6001\u6570\u636e<\/li>\n<li>exstart:\u8868\u793a\u6b63\u5728\u786e\u5b9a\u4e3b\u4ece\u5173\u7cfb\uff0c\u5373\u8c01\u5148\u53d1\u9001DBD<\/li>\n<li>exchange\uff1a\u5728\u4e3b\u7684\u5e26\u9886\u4e0b\u5f00\u59cb\u4ea4\u6362DBD<\/li>\n<li>loading\uff1a\u8bf7\u6c42\u66f4\u8be6\u7ec6\u7684\u4fe1\u606f<\/li>\n<li>full\uff1a\u5df2\u5efa\u7acb\u5b8c\u5168\u90bb\u63a5\u5173\u7cfb \u5b8c\u6210\u66f4\u65b0\u8fc7\u7a0b \u5176\u6570\u636e\u5e93\u4e0e\u90bb\u5c45\u5b8c\u5168\u76f8\u540c<\/li>\n<\/ul>\n<hr>\n<p>&nbsp;<\/p>\n<h2>8. \u6a21\u62df\u6f14\u793a<\/h2>\n<p>\u62d3\u6251\u56fe\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/PicGo1662558275987-d61eb352-78f7-43ee-a053-dacf2706426e.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p>&nbsp;<\/p>\n<h3>\u57fa\u672c\u914d\u7f6e<\/h3>\n<p>\u4ee5R1\u4e3a\u4f8b\uff1a<\/p>\n<pre><code>R1#conf\nR1(config)#no ip domain-lookup \nR1(config)#line console 0\nR1(config-line)#no exec-timeout \nR1(config-line)#logging synchronous \nR1(config-if)#int lo 0      \nR1(config-if)#ip add 1.1.1.1 255.255.255.0\nR1(config-if)#no shut\nR1(config-if)#int s0\/0\nR1(config-if)#ip add 10.4.1.1 255.255.255.0\nR1(config-if)#no shut\nR1(config-if)#int e1\/0\nR1(config-if)#ip add 10.4.2.1 255.255.255.0\nR1(config-if)#no shut\nR1(config-if)#exit\nR1(config)#router ospf 100\t\t\/\/ \u8fdb\u7a0b\u53f7\uff0c\u53ea\u5177\u6709\u672c\u5730\u610f\u4e49\uff0c\u6bcf\u4e2a\u8def\u7531\u5668\u8fdb\u7a0b\u53f7\u53ef\u4ee5\u4e0d\u540c\nR1(config-router)#net 1.1.1.0 0.0.0.255 area 0\nR1(config-router)#net 10.4.1.0 0.0.0.255 area 0\nR1(config-router)#end\n<\/code><\/pre>\n<p>R2\u3001R3\u914d\u7f6e\u76f8\u540c\uff0c\u6ce8\u610f\u63a5\u53e3IP\u5730\u5740<\/p>\n<p>\u5f53\u4f60\u914d\u7f6e\u5b8c\u4f1a\u8df3\u51fa\u6765\u8fd9\u4e00\u884c\u547d\u4ee4<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/PicGo1662528540763-09ce1463-5e48-4dfe-852c-5b5f59484f83.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p>\u7531\u4e8e\u6211\u4f7f\u7528\u4e86\u73af\u56de\u53e3\uff0c\u6240\u4ee5R1\u8def\u7531\u5668\u7684\u4e24\u4e2a\u90bb\u5c45\u4e3a\uff1a2.2.2.2 \u548c 3.3.3.3\uff1bFULL\u8868\u793a\u5df2\u5efa\u7acb\u90bb\u63a5\u72b6\u6001<\/p>\n<p>&nbsp;<\/p>\n<h3>\u8def\u7531\u8868<\/h3>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/PicGo1662528751360-be6778ec-0711-4d8c-9bd9-94f0763e019f.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p>\u5728OSPF\u4e2d\u6240\u6709\u7684\u56de\u73af\u63a5\u53e3\u90fd\u88ab\u81ea\u52a8\u5ba3\u544a\u621032\u4f4d\u7684\u4e3b\u673a\u8def\u7531&#8221;\/32&#8243;\uff0c\u5982\u679c\u60f3\u663e\u793a\u56de\u73af\u63a5\u53e3\u7684\u5b9e\u9645\u5b50\u7f51\u63a9\u7801\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e0b\u9762\u7684\u547d\u4ee4\u8c03\u6574\uff1a<\/p>\n<pre><code>\/\/ \u5728R1\u3001R2\u3001R3\u5ba3\u544aospf\u7684\u73af\u56de\u63a5\u53e3\u4e0a\u6267\u884c\u4e0b\u9762\u7684\u547d\u4ee4\n\nR1(config)#int lo 0\nR1(config-if)#ip ospf network point-to-point \n<\/code><\/pre>\n<p>&nbsp;<\/p>\n<h3>\u90bb\u5c45\u8868<\/h3>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/PicGo1662529167178-b1b33992-a7d1-4c04-85a5-0d1da20dee53.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<ul>\n<li>Pri\uff1a\u63a5\u53e3\u7684\u4f18\u5148\u7ea7\uff0c\u63a5\u53e3\u4f18\u5148\u7ea7\u7528\u4e8eDR\u548cBDR\u7684\u9009\u4e3e<\/li>\n<li>\n<ul>\n<li>\u4ee5\u592a\u7f51\u63a5\u53e3\u63a5\u53e3\u7684\u9ed8\u8ba4\u4f18\u5148\u7ea7\u662f1\uff0c\u4e32\u884c\u7ebf\u8def\u4e0d\u9700\u8981\u9009\u4e3eDR\u548cBDR\u6240\u4ee5\u4f18\u5148\u7ea7\u662f0<\/li>\n<li>0\u4ee3\u8868\u4e0d\u53c2\u4e0e\u9009\u4e3e<\/li>\n<\/ul>\n<\/li>\n<li>State\uff1a\u90bb\u5c45\u8def\u7531\u5668\u72b6\u6001\uff0cFULL\u4ee3\u8868\u5df2\u7ecf\u5efa\u7acb\u4e34\u63a5\u5173\u7cfb<\/li>\n<li>\n<ul>\n<li>\u659c\u6760\u201d\/\u201c\u540e\u9762\u662f\u9009\u4e3e\u7684DR\u6216BDR\u6807\u8bc6\uff0c\u56e0\u4e3a\u4e32\u884c\u7ebf\u8def\u4e0d\u9700\u8981\u9009\u4e3e\uff0c\u6240\u4ee5\u662f\u201d-\u201c<\/li>\n<li>\u201dFULL\/BDR\u201c\u8868\u793aR2\u662fBDR\uff0cR3\u662fDROTHER\uff0c\u9664\u4e86DR\u548cBDR\u7684\u5176\u4f59\u8def\u7531\u5668\u90fd\u662fDROTHER<\/li>\n<li>\u6240\u4ee5R1\u81ea\u5df1\u5c31\u662fDR\u4e86<\/li>\n<\/ul>\n<\/li>\n<li>Dead time\uff1a\u9ed8\u8ba4\u7684\u6b7b\u4ea1\u65f6\u95f4\u662fhello\u65f6\u95f4\u76844\u500d\uff0c\u537340\u79d2\u3002<\/li>\n<li>\n<ul>\n<li>\u6b7b\u4ea1\u65f6\u95f4\u662f\u4e00\u4e2a\u5012\u8ba1\u65f6\uff0c\u8ba1\u65f6\u5668\u4e3a0\u65f6\uff0c\u8be5\u90bb\u5c45\u88ab\u5220\u9664<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>\u8fd9\u8fb9\u6709\u4e9b\u670b\u53cb\u4f1a\u6709\u7591\u95ee\uff1a\u6309\u7167\u4e0a\u6587\u7684DR\u3001BDR\u9009\u4e3e\u89c4\u5219\uff0c\u8def\u7531\u5668\u4f18\u5148\u7ea7\u4e00\u6837\u3001\u63a5\u53e3\u4f18\u5148\u7ea7\u4e00\u6837\u3001R2\u7684Router ID\u6bd4R1\u7684\u5927\uff0c\u90a3\u4e48\u4e3a\u4ec0\u4e48R1\u662fDR\u5462\uff1f<\/p>\n<p>DR\u9009\u4e2d\u89c4\u5219\u4e2d\u8fd8\u6709\u4e00\u6761\uff1a\u5148\u6765\u5148\u662f\u3002\u6211\u5148\u914d\u7684\u662fR1\uff0c\u6240\u4ee5R1\u662fDR\uff1b\u4f46\u662f\u5982\u679c\u6211\u540c\u65f6\u91cd\u542f3\u53f0\u8def\u7531\u5668\u7684ospf\u8fdb\u7a0b\uff0c\u90a3\u4e48DR\u5c31\u662fR3<\/p>\n<p>&nbsp;<\/p>\n<h3>\u62d3\u6251\u8868<\/h3>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/PicGo1662529660564-eb2af760-86e8-4f89-8e43-85d00c01ff47.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p>\u5728\u540c\u4e00\u533a\u57df\u4e2d\uff0c\u6240\u6709\u8def\u7531\u5668\u7684ospf\u7684\u62d3\u6251\u8868\u90fd\u662f\u76f8\u540c\u7684\uff1b<\/p>\n<p>\u539f\u56e0\uff1a<\/p>\n<p>LSA\u627f\u8f7d\u5728LSU\u4e2d\u53d1\u9001\u51fa\u53bb\uff0c\u5f53\u6536\u5230LSR\u8bf7\u6c42\u540e\uff0c\u4f1a\u53d1\u9001LSU\uff1b<\/p>\n<p>\u8def\u7531\u5668\u4f1a\u6cdb\u6d2a\u6240\u6709\u90bb\u53d1\u6765\u7684LSA\uff0c\u4e5f\u4f1a\u4fdd\u5b58\u4e00\u4efd\u526f\u672c\u5728\u672c\u5730LSDB\u4e2d\uff1b<\/p>\n<p>\u6240\u4ee5\u591a\u6b21\u4ea4\u6362\u3001\u66f4\u65b0\u540e\uff0c\u540c\u4e00\u533a\u57df\u7684LSDB\u90fd\u4f1a\u4e00\u6837<\/p>\n<p>&nbsp;<\/p>\n<h3>Router ID\u9009\u4e3e\u89c4\u5219<\/h3>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/PicGo1662530283884-aeebf56b-66e8-4dd0-b320-0b5ba629dca2.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p>\u9ed8\u8ba4\u9009\u4e3e\u7684 ID \u662f\u73af\u56de\u53e3\u7684\u5730\u5740<\/p>\n<p>&nbsp;<\/p>\n<p>\u4e5f\u53ef\u4ee5\u624b\u5de5\u914d\u7f6e<\/p>\n<pre><code>R1(config)#router ospf 100\nR1(config-router)#router-id 8.8.8.8\n<\/code><\/pre>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/PicGo1662530749121-51ee1e35-59a5-4abb-a94c-a0561bc8a6c6.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p>\u53ef\u4ee5\u770b\u5230Router ID \u5df2\u66f4\u6539<\/p>\n<p>\u8fd9\u65f6\u5019\u4e3a\u5565R2\u53d8\u6210DR\u4e86\u5462\uff1f<\/p>\n<p>R1 Router ID \u4e0d\u662f\u6700\u5927\u7684\u5417\uff1f<\/p>\n<p>\u56e0\u4e3aR2\u539f\u6765\u662fBDR\uff0cR1\u91cd\u914dRouter ID\u65f6\u7ed3\u675f\u4e86ospf\u8fdb\u7a0b\uff0c\u4ee3\u8868DR\u51fa\u6545\u969c\u3002\u8fd9\u65f6\u5019BDR\u81ea\u52a8\u5347\u7ea7\u4e3aDR\uff0cDROTHER\u5347\u7ea7\u4e3aBDR\uff1b<\/p>\n<p>\u907f\u514d\u91cd\u65b0\u9009\u4e3eDR\u5360\u7528\u8fc7\u591a\u7684CPU\u548c\u5185\u5b58\u8d44\u6e90<\/p>\n<p>\u4fa7\u9762\u4e5f\u53ef\u4ee5\u770b\u51fa\uff0c\u662f\u5148\u9009\u51faBDR\uff0c\u518d\u9009\u51faDR<\/p>\n<p>&nbsp;<\/p>\n<p>\u9009\u4e3e\u89c4\u5219<\/p>\n<ol start=\"\">\n<li>\u624b\u5de5\u914d\u7f6e<\/li>\n<li>\u6ca1\u6709\u624b\u5de5\u914d\u7f6e\uff0c\u5c31\u6839\u636eloopback\u7684\u5730\u5740\uff0cloopback\u5927\u7684\u4e3aRouter ID<\/li>\n<li>loopback\u4e5f\u6ca1\u6709\u914d\u7f6e\uff0c\u5c31\u6839\u636e\u6240\u6709\u5df2\u6fc0\u6d3b\u63a5\u53e3\u7684\u6700\u5927\u5730\u5740\u4e3aRouter ID<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<p>\u672c\u6587\u5b8c<\/p>\n<p>\u656c\u7231\u4e0e\u660e\u5929\ud83c\udf39<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u9ad8\u7ea7\u8def\u7531\u4ea4\u6362\u4e4bospf\u7b80\u8ff0<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[45,15],"tags":[46,53,36,54],"class_list":["post-136","post","type-post","status-publish","format-standard","hentry","category-cisco","category-15","tag-cisco","tag-53","tag-36","tag-54"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>ospf\u7b80\u8ff0 - #\u762b\u7537\u65e5\u8bb0<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blog.taiyang.space\/?p=136\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"ospf\u7b80\u8ff0 - #\u762b\u7537\u65e5\u8bb0\" \/>\n<meta property=\"og:description\" content=\"\u9ad8\u7ea7\u8def\u7531\u4ea4\u6362\u4e4bospf\u7b80\u8ff0\" \/>\n<meta property=\"og:url\" content=\"https:\/\/blog.taiyang.space\/?p=136\" \/>\n<meta property=\"og:site_name\" content=\"#\u762b\u7537\u65e5\u8bb0\" \/>\n<meta property=\"article:published_time\" content=\"2022-09-11T04:00:41+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-01-17T11:43:56+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/picture.chentaiyang.space\/PicGo1662517562782-ef599103-946d-428c-8d59-d935aae65366.png\" \/>\n<meta name=\"author\" content=\"taiyang\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"taiyang\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 \u5206\" \/>\n<script type=\"application\/ld+json\" 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