{"id":557,"date":"2025-10-22T16:06:15","date_gmt":"2025-10-22T08:06:15","guid":{"rendered":"https:\/\/www.youvii.site\/?p=557"},"modified":"2025-10-22T16:09:31","modified_gmt":"2025-10-22T08:09:31","slug":"ospfluyoujisuan","status":"publish","type":"post","link":"https:\/\/www.youvii.site\/index.php\/archives\/ospfluyoujisuan","title":{"rendered":"OSPF\u8def\u7531\u8ba1\u7b97"},"content":{"rendered":"

OSPF\u8def\u7531\u8ba1\u7b97<\/h1>\n

\u540c\u4e00\u533a\u57df\u7684OSPF\u8def\u7531\u5668\u62e5\u6709\u5b8c\u5168\u4e00\u81f4\u7684LSDB\u3002\u5728\u533a\u57df\u5185 OSPF\u91c7\u7528SPF\u7b97\u6cd5\u5b8c\u6210\u8def\u7531\u8ba1\u7b97<\/p>\n

\u533a\u57df\u5212\u5206\u53ef\u4ee5\u4e00\u5b9a\u7a0b\u5ea6\u7f13\u89e3\u8def\u7531\u5668\u538b\u529b<\/p>\n

OSPF\u652f\u6301\u5916\u90e8\u8def\u7531\u5f15\u5165\uff0c\u4ece\u800c\u4f7f\u5f97OSPF\u77e5\u6653\u5230\u8fbe\u57df\u5916\u7684\u8def\u7531<\/p>\n

\u4e00\u3001\u533a\u57df\u5185\u8def\u7531\u8ba1\u7b97<\/strong><\/p>\n

LSA\u6982\u8ff0<\/p>\n

LSA\u662fOSPF\u8def\u7531\u8ba1\u7b97\u7684\u5173\u952e\u4f9d\u636e<\/p>\n

OSPF\u7684LSU\u62a5\u6587\u53ef\u4ee5\u643a\u5e26\u591a\u79cd\u4e0d\u540c\u7c7b\u578b\u7684LSA<\/p>\n

\u5404\u79cd\u7c7b\u578b\u7684LSA\u62e5\u6709\u76f8\u540c\u7684\u62a5\u6587\u5934\u90e8<\/p>\n

\"1741833232639-b7eec926-f0e6-41b6-8f9d-5e07760646bf.png\"<\/p>\n

\"1741833232671-c2729a88-b286-4aa0-a39b-383e106bc6be.png\"<\/p>\n

\u5e38\u89c1\u7684LSA\u7c7b\u578b<\/p>\n

1-Route LSA-\u6bcf\u4e2a\u8bbe\u5907\u90fd\u4f1a\u4ea7\u751f\uff0c\u63cf\u8ff0\u4e86\u8bbe\u5907\u7684\u94fe\u8def\u72b6\u6001\u548c\u5f00\u9500\uff0c\u8be5LSA\u53ea\u80fd\u5728\u63a5\u53e3\u6240\u5c5e\u533a\u57df\u6cdb\u6d2a<\/p>\n

2-Network LSA-DR\u4ea7\u751f\uff0c\u63cf\u8ff0\u8be5DR\u6240\u63a5\u5165\u7684MA\u7f51\u7edc\u4e2d\u6240\u6709\u4e0e\u4e4b\u5f62\u6210\u90bb\u63a5\u5173\u7cfb\u7684\u8def\u7531\u5668\uff0c\u4ee5\u53caDR\u81ea\u5df1\uff0c\u8be5LSA\u53ea\u80fd\u5728\u63a5\u53e3\u6240\u5c5e\u533a\u57df\u5185\u6cdb\u6d2a\u3002<\/p>\n

3-Network Summary LSA-\u7531ABR\u4ea7\u751f\uff0c\u63cf\u8ff0\u533a\u57df\u5185\u67d0\u4e2a\u7f51\u6bb5\u7684\u8def\u7531\uff0c\u8be5\u7c7bLSA\u4e3b\u8981\u7528\u4e8e\u533a\u57df\u95f4\u8def\u7531\u4f20\u9012<\/p>\n

4-ASBR Summary LSA-\u7531ABR\u4ea7\u751f\uff0c\u63cf\u8ff0\u5230ASBR\u7684\u8def\u7531\uff0c\u901a\u544a\u7ed9\u51faASBR\u6240\u5728\u533a\u57df\u5185\u5176\u4ed6\u76f8\u5173\u533a\u57df<\/p>\n

5-AS External LSA-\u7531ASBR\u4ea7\u751f\uff0c\u63cf\u8ff0\u5230\u8fbeOSPF\u57df\u5916\u8def\u7531<\/p>\n

7-NSSA LSA-\u7531ASBR\u4ea7\u751f\uff0c\u7528\u4e8e\u63cf\u8ff0\u5230\u8fbeOSPF\u57df\u5916\u7684\u8def\u7531\u3002NSSA LSA\u4e0eAS\u5916\u90e8\u7684LSA\u529f\u80fd\u7c7b\u4f3c\uff0c\u4f46\u6cdb\u6d2a\u8303\u56f4\u4e0d\u540c\uff0cNSSA LSA\u53ea\u80fd\u5728\u59cb\u53d1\u7684NSSA\u5185\u6cdb\u6d2a\uff0c\u5e76\u4e14\u4e0d\u80fd\u76f4\u63a5\u8fdb\u5165Area0\u3002NSSA\u7684ABR\u4f1a\u5c067\u7c7bLSA\u8f6c\u6362\u62105\u7c7bLSA\u6ce8\u5165\u5230A0<\/p>\n

Router LSA<\/p>\n

\u63cf\u8ff0\u4e86\u8be5\u8def\u7531\u5668\u76f4\u8fde\u63a5\u53e3\u7684\u4fe1\u606f\u3002<\/p>\n

\u53ea\u5728\u6240\u5c5e\u533a\u57df\u5185\u6cdb\u6d2a<\/p>\n

Link State ID\u4e3aOSPF\u7684Router ID<\/p>\n

\"1741833232676-61465f70-0ff3-40cd-b014-be076ba4bb6f.png\"\"1741833232680-e2cbf7a3-dd2f-470b-a780-4b84efa6eba1.png\"<\/p>\n

Router LSA \u4f7f\u7528Link\u6765\u627f\u8f7d\u8def\u7531\u5668\u76f4\u8fde\u63a5\u53e3\u7684\u4fe1\u606f\u3002<\/p>\n

\u6bcf\u6761Link\u5747\u5305\u542b \u94fe\u8def\u7c7b\u578b \u94fe\u8defID \u94fe\u8def\u6570\u636e \u4ee5\u53ca\u5ea6\u91cf\u503c \u51e0\u4e2a\u5173\u952e\u4fe1\u606f<\/p>\n

\u8def\u7531\u5668\u53ef\u80fd\u4f1a\u91c7\u7528\u4e00\u4e2a\u6216\u8005\u591a\u4e2aLink\u6765\u63cf\u8ff0\u67d0\u4e2a\u63a5\u53e3<\/p>\n

\"1741833232752-edcbada0-b727-4567-92cf-1a35a77cd3a4.png\"<\/p>\n

Router LSA\u63cf\u8ff0P2P\u7f51\u7edc<\/p>\n

R1\u5411R3\u53d1\u9001Router-LSA\uff0c\u643a\u5e26\u62d3\u6251\u548c\u7f51\u6bb5\u4fe1\u606f<\/p>\n

\"1741833233541-fb0e6f51-4d67-4b3c-9358-1878bc06be2e.png\"<\/p>\n

Router LSA\u63cf\u8ff0TransNet<\/p>\n

R2\u5411R3\u548cR5\u53d1\u9001Router-LSA\uff0c\u643a\u5e26\u62d3\u6251\u4fe1\u606f\u3002<\/p>\n

\"1741833233561-5f0dedcf-96e8-42a1-9b49-39252319cef8.png\"<\/p>\n

Network LSA<\/p>\n

Network LSA\uff082\u7c7b\uff09\u7531DR\u4ea7\u751f\uff0c\u63cf\u8ff0\u672c\u7f51\u6bb5\u7684\u94fe\u8def\u72b6\u6001\uff0c\u5728\u6240\u5c5e\u533a\u57df\u5185\u4f20\u64ad<\/p>\n

\u8bb0\u5f55\u4e86\u8be5\u7f51\u6bb5\u6240\u6709\u4e0eDR\u5efa\u7acb\u4e86\u90bb\u63a5\u5173\u7cfb\u7684OSPF\u8def\u7531\u5668\uff0c\u540c\u65f6\u643a\u5e26\u4e86\u8be5\u7f51\u6bb5\u7684\u7f51\u7edc\u5bc6\u7801\u3002<\/p>\n

\"1741833233568-b42b5da2-f9a2-4b88-b862-598ef4cbefcb.png\"<\/p>\n

Network LSA\u63cf\u8ff0MA\u7f51\u7edc<\/p>\n

R2\u5411R3\u548cR5\u53d1\u9001Network LSA\uff0c\u643a\u5e26\u62d3\u6251\u548c\u7f51\u6bb5\u4fe1\u606f<\/p>\n

\"1741833233601-79d39849-fb02-442f-afa9-cc22137dd420.png\"<\/p>\n

SPF\u7b97\u6cd5<\/p>\n

1\u3001\u6784\u5efaSPF\u6811<\/p>\n

\u8def\u7531\u5668\u5c06\u81ea\u5df1\u4f5c\u4e3a\u6700\u77ed\u8def\u5f84\u6811\u7684\u6811\u6839 \u6839\u636e\u4e00\u7c7b\u548c\u4e8c\u7c7bLSA\u7684\u62d3\u6251\u4fe1\u606f\uff0c\u4e00\u6b21\u5c06\u5ea6\u91cf\u503c\u6700\u5c0f\u7684\u8def\u7531\u5668\u6dfb\u52a0\u5230SPF\u4e66\uff0c\u4ee5Router ID\u6216\u8005DR\u6807\u8bc6<\/p>\n

\u5e7f\u64ad\u7f51\u7edc\u4e2dDR\u548c\u5176\u8fde\u63a5\u7684\u8def\u7531\u5668\u5ea6\u91cf\u503c\u4e3a0<\/p>\n

SPF\u6811\u4e2d\u53ea\u6709\u5355\u5411\u7684\u6700\u77ed\u8def\u5f84\uff0c\u4fdd\u8bc1\u4e86OSPF\u533a\u57df\u5185\u8def\u7531\u8ba1\u7b97\u4e0d\u4f1a\u51fa\u73b0\u73af\u8def\u3002<\/p>\n

2\u3001\u8ba1\u7b97\u6700\u4f18\u8def\u7531<\/p>\n

\u5c06\u4e00\u7c7b\u4e8c\u7c7bLSA\u4e2d\u7684\u8def\u7531\u4fe1\u606f\u4ee5\u53f6\u5b50\u8282\u70b9\u7684\u5f62\u5f0f\u9644\u52a0\u5728\u5bf9\u5e94OSPF\u8def\u7531\u5668\u4e0a\uff0c\u8ba1\u7b97\u6700\u4f18\u8def\u7531\u3002\u5df2\u7ecf\u51fa\u73b0\u7684\u8def\u7531\u4fe1\u606f\u4e0d\u56de\u518d\u6dfb\u52a0\u5230SPF\u6811\u5e72\u4e0a<\/p>\n

\"1741833233547-b74b7f24-465e-4b87-a543-e0891000d03c.png\"\"1741833233817-506761f3-9ec0-4858-95b4-7c379775f160.png\"<\/p>\n

\u4ee5R1\u4e3a\u4f8b\u8bf4\u660eOSPF\u62d3\u6251\u548c\u8def\u7531\u7684\u8ba1\u7b97\u8fc7\u7a0b<\/p>\n

1\u3001R1\u4ee5\u81ea\u5df1\u4e3a\u6811\u6839 \u68c0\u67e5\u4e00\u7c7b\u8def\u7531\uff0c\u5bf9\u4e8e\u975eStubNet\u7c7b\u578b\u7684link \u5c06linkID\u52a0\u5165\u5019\u9009\u5217\u8868\u5e76\u8bb0\u5f55\u8def\u5f84\u5f00\u9500<\/p>\n

2\u3001R1\u5c06\u5019\u9009\u5217\u8868\u4e2d\u5019\u9009\u603b\u8def\u5f84\u5f00\u9500\u6700\u5c0f\u7684\u79fb\u5230\u6700\u77ed\u8def\u5f84\u6811\u4e0a\uff0c\u5e76\u5019\u9009\u5217\u8868\u4e2d\u5220\u9664\u3002<\/p>\n

\uff08\u5019\u9009\u603b\u5f00\u9500\u4e3a\u672cLSA\u4e2d\u63cf\u8ff0\u7684Metric\u503c\u548c\u7236\u8282\u70b9\u5230\u8fbe\u6839\u8282\u70b9\u5f00\u9500\u4e4b\u548c\uff0c\u5019\u9009\u5217\u8868\u672c\u8d28\u4e0a\u8bb0\u5f55\u7684\u662f\u90bb\u5c45\u5217\u8868\uff09<\/p>\n

3\u3001\u7ee7\u7eed\u67e5\u8be2DR\u4ea7\u751f\u7684\u4e8c\u7c7bLSA\u3002\u5c06\u63cf\u8ff0\u7684\u62d3\u6251\u4fe1\u606f\u6dfb\u52a0\u5230\u5019\u9009\u5217\u8868\uff0c\u5982\u679cLSA\u4e2d\u6240\u63cf\u8ff0\u7684\u5206\u8282\u70b9\u5728\u6700\u77ed\u8def\u5f84\u6811\u4e0a\u5df2\u7ecf\u5b58\u5728\uff0c\u5219\u5ffd\u7565<\/p>\n

4\u3001R1\u5c06\u5019\u9009\u603b\u8def\u5f84\u5f00\u9500\u6700\u5c0f\u7684\u90bb\u5c45\u79fb\u5230\u6700\u77ed\u8def\u5f84\u6811\u4e0a\uff0c\u5e76\u4ece\u5019\u9009\u5217\u8868\u4e2d\u5220\u9664<\/p>\n

5\u3001\u6839\u636eR2\u4ea7\u751f\u7684\u4e00\u7c7bLSA \u5c06\u90bb\u5c45\u4fe1\u606f\u8bb0\u5f55\u5728\u5019\u9009\u5217\u8868<\/p>\n

6\u3001\u5c06\u5019\u9009\u603b\u8def\u5f84\u5f00\u9500\u6700\u5c0f\u7684\u90bb\u5c45\u79fb\u5230\u6700\u77ed\u8def\u5f84\u6811\u4e0a \u5e76\u4ece\u5019\u9009\u5217\u8868\u5220\u9664<\/p>\n

7\u3001\u7ee7\u7eed\u67e5\u8be2DR\u4ea7\u751f\u76842\u7c7bLSA \u5c06\u63cf\u8ff0\u7684\u62d3\u6251\u7ec6\u817b\u6dfb\u52a0\u5230\u5019\u9009\u5217\u8868<\/p>\n

8\u3001\u5c06\u5019\u9009\u603b\u8def\u5f84\u5f00\u9500\u6700\u5c0f\u7684\u90bb\u5c45\u79fb\u5230\u6700\u77ed\u8def\u5f84\u6811\u4e0a\uff0c\u5e76\u4ece\u5019\u9009\u5217\u8868\u4e2d\u5220\u9664<\/p>\n

9\u3001\u67e5\u8be2R3\u76841\u7c7bLSA\uff0cR3\u6240\u6709\u90bb\u5c45\u90fd\u5df2\u5728SPF\u6811\u4e2d\uff0c\u62d3\u6251\u4e0d\u518d\u53d8\u5316<\/p>\n

10\u3001\u67e5\u8be2R5\u76841\u7c7bLSA\uff0c\u5c06R4\u52a0\u5165SPF\u6811\uff0c\u5e76\u4ece\u5019\u9009\u5217\u8868\u5220\u9664<\/p>\n

11\u3001\u67e5\u8be2R4\u76841\u7c7bLSA\uff0c\u53d1\u73b0\u6240\u6709\u90bb\u5c45\u5df2\u5728SPF\u6811\u5e72\u4e2d\uff0c\u5e76\u4e14\u5df2\u8ba1\u7b97\u5b8c\u5168\u90e8\u7684SLA\uff0c\u6784\u5efa\u5b8c\u6210<\/p>\n

\u8ba1\u7b97\u6700\u4f18\u8def\u7531<\/p>\n

\u4ece\u6839\u8282\u70b9\u5f00\u59cb\u4f9d\u6b21\u6dfb\u52a0\u5404\u8282\u70b9LSA\u4e2d\u7684\u8def\u7531\u4fe1\u606f<\/p>\n

\u6dfb\u52a0\u987a\u5e8f\u4e3a\u5404\u8282\u70b9\u52a0\u5165PSF\u6811\u7684\u987a\u5e8f\uff0c\u5df2\u6709\u5ffd\u7565<\/p>\n

\u4ece\u7b2c\u4e8c\u9636\u6bb5\u6839\u636e\u4e00\u7c7bLSA\u4e2d\u7684Stub\u3001\u4e8c\u7c7bLSA\u4e2d\u7684\u8def\u7531\u4fe1\u606f \u5b8c\u6210\u6700\u4f18\u8def\u7531\u8ba1\u7b97<\/p>\n

\"1741833233884-0fa114c4-0c2d-4086-8231-6e990b37db39.png\"<\/p>\n

\"1741833233954-2c8abd14-1f99-4dc4-bf29-a8753dd44edd.png\"<\/p>\n

OSPF\u6839\u636eLSDB\u8ba1\u7b97\u8def\u7531\u8868\uff0cLSDB\u53ef\u80fd\u5b58\u5728\u591a\u79cdLSA\uff0c\u6240\u6709LSA\u6709\u76f8\u540c\u7684\u62a5\u6587\u5934\u90e8\u683c\u5f0f<\/p>\n

\u540c\u610f\u533a\u57df\u7684OSPF\u8def\u7531\u5668\u62e5\u6709\u5b8c\u5168\u4e00\u81f4\u7684LSDB\u3002\u5728\u53ea\u6709\u4e00\u4e2a\u533a\u57df\u7684\u60c5\u51b5\u4e0b\uff0c\u533a\u57df\u5185\u90e8\u4e3b\u8981\u5b58\u5728\u4e24\u79cd\u7c7b\u578b\u7684LSA\uff0c\u4e00\u7c7b\u4e8c\u7c7b<\/p>\n

\u6bcf\u53f0\u8def\u7531\u90fd\u4f1a\u4ea7\u751f\u4e00\u7c7b \u63cf\u8ff0\u76f4\u8fde\u63a5\u53e3\u4fe1\u606f<\/p>\n

\u5728MA\u7f51\u7edc\u4e2d DR\u4f1a\u4ea7\u751f\u4e8c\u7c7b\u6765\u63cf\u8ff0\u63a5\u5165\u8be5MA\u7f51\u7edc\u7684\u6240\u6709\u5723\u8def\u6613\u6e20\u9053Router id \u5305\u62ecDR\u81ea\u8eab\uff0c\u4ee5\u53ca\u8be5\u7f51\u7edc\u7684\u63a9\u7801<\/p>\n

\u4e8c\u3001\u533a\u57df\u95f4\u8def\u7531\u8ba1\u7b97<\/strong><\/p>\n

\u5f15\u5165\uff1a\u8fde\u7eed\u7684OSPF\u8def\u7531\u5668\u6784\u6210\u7684\u7f51\u7edc\u79f0\u4e3aOSPF\u57df<\/p>\n

OSPF\u8981\u6c42\u7f51\u7edc\u5185\u7684\u8def\u7531\u5668\u540c\u6b65 LSDB\u5b9e\u73b0\u5bf9\u4e8e\u7f51\u7edc\u7684\u5df2\u77e5\u8ba4\u77e5<\/p>\n

\u5f53\u7f51\u7edc\u89c4\u6a21\u8d8a\u6765\u8d8a\u5927\u65f6\uff0cLSDB\u5c06\u53d8\u5f97\u975e\u5e38\u81c3\u80bf\uff0c\u6b64\u5916\u8def\u7531\u5668\u7684\u8def\u7531\u8868\u89c4\u6a21\u4e5f\u53d8\u5927\u4e86\uff0c\u65e0\u7591\u662f\u52a0\u5927\u4e86\u6027\u80fd\u635f\u8017<\/p>\n

\u7f51\u7edc\u62d3\u6251\u53d8\u66f4\u65f6\uff0c\u9700\u8981\u6269\u6563\u6574\u4e2a\u7f51\u7edc<\/p>\n

\u5355\u533a\u57df\u7684\u8bbe\u8ba1\u4f7fOSPF\u65e0\u6cd5\u90e8\u7f72\u8def\u7531\u6c47\u603b<\/p>\n

\u533a\u57df\u5212\u5206 <\/p>\n

\u4e00\u7c7b\u548c\u4e8c\u7c7bLSA\u53ea\u5728\u533a\u57df\u5185\u6cdb\u6d2a\uff0c\u56e0\u6b64\u901a\u8fc7\u533a\u57df\u5212\u5206\u5728\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u63d0\u5347\u786c\u4ef6\u6027\u80fd<\/p>\n

\u5212\u5206\u533a\u57df\u540e \u8def\u7531\u5206\u4e3a<\/p>\n

\u533a\u57df\u5185\u90e8\u8def\u7531\u5668\uff08Internal Router\uff09\uff1a\u8bbe\u5907\u6240\u6709\u63a5\u53e3\u540c\u5c5e\u4e00\u4e2a\u533a\u57df<\/p>\n

\u533a\u57df\u8fb9\u754c\u8def\u7531\u5668\uff08Area Border Rtouter\uff09\uff1a\u8bbe\u5907\u63a5\u53e3\u5206\u522b\u8fde\u63a5\u4e24\u4e2a\u6216\u4ee5\u4e0a\u7684\u533a\u57df<\/p>\n

\u533a\u57df\u95f4\u8def\u7531\u4fe1\u606f\u4f20\u9012<\/p>\n

OSPF\u533a\u57df\u95f4\u8def\u7531\u4fe1\u606f\u4f20\u9012\u662f\u901a\u8fc7ABR\u4ea7\u751f\u7684Network Summary LSA\uff08\u4e09\u7c7b\uff09\u5b9e\u73b0\u7684<\/p>\n

\"1741833233892-a9a06f52-5c1b-4574-ab9e-79fb115cf7dc.png\"<\/p>\n

Network Summary LSA \uff08\u4e09\u7c7bLSA\uff09<\/p>\n

\u7531ABR\u4ea7\u751f\uff0c\u7528\u4e8e\u5411\u4e00\u4e2a\u533a\u57df\u901a\u544a\u5230\u8fbe\u53e6\u4e00\u4e2a\u533a\u57df\u7684\u8def\u7531<\/p>\n

\"1741833234266-c5c7a019-e106-46e6-b481-cfd236102a47.png\"<\/p>\n

R1\u548cR3\u7684\u8def\u7531\u8ba1\u7b97<\/p>\n

1\u3001\u901a\u8fc7\u533a\u57df\u5185SPF\u7684\u8ba1\u7b97\uff0cR1\u5230R2\u7684cost=1\uff0cR3\u5230R2\u7684cost=2<\/p>\n

2\u3001R1\u548cR3\u6839\u636e\u6536\u5230\u76843\u7c7bLSA\u8fdb\u884c\u8def\u7531\u8ba1\u7b97<\/p>\n

\"1741833234395-d06a8ded-c63b-4767-a2ef-833a6c91f8fb.png\"<\/p>\n

\u533a\u57df\u95f4\u8def\u7531\u9632\u73af\u673a\u5236<\/p>\n

\u73af\u8def\u7684\u4ea7\u751f\uff1aOSPF\u533a\u57df\u95f4\u8def\u7531\u7684\u4f20\u64ad\u8fc7\u7a0b\u4e0e\u8ddd\u79bb\u77e2\u91cf\u8def\u7531\u534f\u8bae\u7684\u8def\u7531\u4f20\u64ad\u8fc7\u7a0b\u76f8\u4f3c<\/p>\n

\"1741833234358-542e8ce0-17cc-4c56-aa80-72ab5c740453.png\"<\/p>\n

OSPF\u8981\u6c42\u6240\u6709\u7684\u975e\u9aa8\u5e72\u533a\u57df\u5fc5\u987b\u4e0eA0\u76f4\u63a5\u76f8\u8fde \u533a\u57df\u8def\u7531\u5fc5\u987b\u7531A0\u4e2d\u8f6c<\/p>\n

\u533a\u57df\u95f4\u7684\u8def\u7531\u4f20\u9012\u4e0d\u80fd\u53d1\u751f\u5728\u4e24\u4e2a\u975e\u9aa8\u5e72\u533a\u57df\u4e4b\u95f4\uff0c\u8fd9\u4f7fOSPF\u7684\u533a\u57df\u67b6\u6784\u5728\u903b\u8f91\u4e0a\u5f62\u6210\u4e86\u7c7b\u4f3c\u661f\u5f62\u7684\u62d3\u6251<\/p>\n

ABR\u4e0d\u4f1a\u5c06\u63cf\u8ff0\u5230\u8fbe\u67d0\u4e2a\u533a\u57df\u5185\u7f51\u6bb5\u8def\u7531\u76843\u7c7bLSA\u518d\u6ce8\u5165\u56de\u8be5\u533a\u57df<\/p>\n

ABR\u4ece\u975e\u9aa8\u5e72\u533a\u57df\u6536\u5230\u76843\u7c7bLSA\u4e0d\u80fd\u7528\u4e8e\u533a\u57df\u95f4\u8def\u7531\u7684\u8ba1\u7b97<\/p>\n

\"1741833234481-2c13def6-745d-40b3-adc9-304ef97d2dad.png\"<\/p>\n

\u89e3\u51b3\u9aa8\u5e72\u533a\u57df\u4e0d\u8fde\u7eed\u95ee\u9898<\/strong><\/p>\n

\u865a\u94fe\u63a5\u7684\u4f5c\u7528\u53ca\u914d\u7f6e<\/strong><\/p>\n

OSPF\u8981\u6c42\u9aa8\u5e72\u533a\u57df\u5fc5\u987b\u662f\u8fde\u7eed\u7684\uff0c\u4f46\u5e76\u4e0d\u8981\u6c42\u7269\u7406\u4e0a\u8fde\u7eed\uff0c\u53ef\u4ee5\u4f7f\u7528\u865a\u8fde\u63a5\u4f7f\u9aa8\u5e72\u533a\u57df\u5728\u903b\u8f91\u4e0a\u8fde\u7eed<\/p>\n

\u865a\u94fe\u63a5\u5f00\u5f00\u773c\u5728\u4efb\u610f\u4e24\u4e2aABR\u4e0a\u5efa\u7acb\uff0c\u4f46\u662f\u8981\u6c42\u8fd9\u4e24\u4e2aABR\u90fd\u6709\u7aef\u53e3\u8fde\u63a5\u5230\u4e00\u4e2a\u76f8\u540c\u7684\u975e\u9aa8\u5e72\u533a\u57df<\/p>\n

\"1741833234426-b6166db5-cc8f-4fab-bc3b-289c44dfb62b.png\"<\/p>\n

\u865a\u94fe\u63a5\u7684\u521b\u5efa\u4f7fOSPF\u534f\u8bae\u53ef\u4ee5\u901a\u8fc7\u975e\u9aa8\u5e72\u533a\u57df\u901a\u4fe1\uff0c\u8fdd\u80cc\u4e86OSPF\u533a\u57df\u95f4\u7684\u9632\u73af\u89c4\u5219\uff0c\u5728\u67d0\u4e9b\u573a\u666f\u4e0b\u56de\u5bfc\u81f4\u8def\u7531\u73af\u8def\u7684\u4ea7\u751f\uff0c\u56e0\u6b64\u4e0d\u5efa\u8bae\u90e8\u7f72OSPF\u865a\u8fde\u63a5<\/p>\n

OSPF\u5f15\u5165\u4e86\u591a\u533a\u57df\u6982\u5ff5\uff0c\u4f7f\u5f97\u5927\u89c4\u6a21\u7ec4\u7f51<\/p>\n

OSPF\u4f7f\u75283\u7c7bLSA\u63cf\u8ff0\u533a\u57df\u95f4\u8def\u7531\u4fe1\u606f<\/p>\n

\u4e3a\u4e86\u907f\u514d\u73af\u8def\uff0cOSPF\u53ea\u80fd\u6709\u4e00\u4e2a\u9aa8\u5e72\u533a\u57df\uff0c\u4e14\u975e\u9aa8\u5e72\u533a\u57df\u5fc5\u987b\u4e0e\u9aa8\u5e72\u533a\u57df\u76f4\u8fde<\/p>\n

OSPF Virtual Link\u662f\u865a\u62df\u7684\u903b\u8f91\u7684\u94fe\u8def\uff0c\u88ab\u90e8\u7f72\u5728\u4e24\u53f0OSPF\u8def\u7531\u5668\u4e4b\u95f4\uff0c\u5b83\u7a7f\u8d8a\u67d0\u4e2a\u975e\u9aa8\u5e72\u533a\u57df\u7528\u4e8e\u5b9e\u73b0\u53e6\u4e00\u4e2a\u975e\u9aa8\u5e72\u533a\u57df\u4e0eA0\u7684\u8fde\u63a5\u3002Virtual Link\u5e94\u8be5\u59cb\u7ec8\u4f5c\u4e3a\u4e00\u79cd\u4e34\u65f6\u7684\u6280\u672f\u624b\u6bb5\u6765\u89e3\u51b3\u975e\u9aa8\u5e72\u533a\u57df\u6ca1\u6709\u4e0eA0\u76f4\u63a5\u8fde\u63a5\u7684\u60c5\u51b5<\/p>\n

\u5916\u90e8\u8def\u7531\u8ba1\u7b97<\/strong><\/p>\n

\u7f51\u7edc\u4e2d\u5b58\u5728\u90e8\u5206\u94fe\u8def\u672a\u5f00\u542fOSPF\u534f\u8bae<\/p>\n

\u5982\uff1a\u5916\u90e8\u7f51\u7edc\u4f7f\u7528\u9759\u6001\u8def\u7531\u6216\u8005BGP\u3001\u76f4\u8fde\u670d\u52a1\u5668\u7b7e\u5230\u94fe\u8def\u672a\u5f00\u542fOSPF\u534f\u8bae<\/p>\n

\u57fa\u672c\u6982\u5ff5\uff1a<\/p>\n

ASBR\u81ea\u6cbb\u7cfb\u7edf\u8fb9\u754c\u8def\u7531\uff1a\u53ea\u8981\u4e00\u53f0\u8def\u7531\u5668\u5f15\u5165\u4e86\u5916\u90e8\u8def\u7531\uff0c\u5b83\u5c31\u6210\u4e86ASBR<\/p>\n

ASBR\u5c06\u5916\u90e8\u8def\u7531\u4fe1\u606f\u4ee5AS-External LSA 5\u7c7bLSA\u7684\u5f62\u5f0f\u5728OSPF\u7f51\u7edc\u6cdb\u6d2a<\/p>\n

\u5728OSPF\u8fdb\u7a0b\u4e0b\uff0c\u8bbe\u5907\u652f\u6301\u5f15\u5165BGP\/ISIS\/OSPF\/\u76f4\u8fde\u4ee5\u53ca\u9759\u6001\u8def\u7531<\/p>\n

AS-External LSA 5\u7c7bLSA<\/p>\n

AS-External LSA \u7531ASBR\u4ea7\u751f\uff0c\u63cf\u8ff0\u5230\u8fbeAS\u5916\u90e8\u7684\u8def\u7531\uff0c\u8be5LSA\u4f1a\u88ab\u901a\u544a\u5230\u6240\u6709\u7684\u533a\u57df\uff08\u9664Stub\u548cNSSA\uff09<\/p>\n

\"1741833235081-6b91d4c4-5576-4e22-9e1a-c9c525ef3062.png\"<\/p>\n

\"1741833235088-6ea4f042-6e66-486b-b4a2-9f44455e7408.png\"<\/p>\n

\u8def\u7531\u8ba1\u7b97\u8fc7\u7a0b<\/p>\n

\"1741833235098-dd7d2fe8-6984-4787-995d-d0c78ddf7689.png\"<\/p>\n

ASBR-Summary LSA 4\u7c7b LSA <\/p>\n

\u7531ABR\u4ea7\u751f\uff0c\u63cf\u8ff0\u5230ASBR\u7684\u8def\u7531\uff0c\u901a\u544a\u7ed9\u9664ASBR\u6240\u5728\u533a\u57df\u7684\u5176\u4ed6\u76f8\u5173\u533a\u57df<\/p>\n

\"1741833235109-cd4486b8-bca8-443b-8b31-4a835f2afc8b.png\"<\/p>\n

R5\u7684\u8def\u7531\u8ba1\u7b97\u8fc7\u7a0b<\/p>\n

\"1741833235113-8c71e4bc-3550-4bf7-b0bf-3f646cc57ca2.png\"<\/p>\n

\u533a\u5206OSPF\u5916\u90e8\u8def\u7531\u76842\u79cd\u5ea6\u91cf\u503c\u7c7b\u578b<\/p>\n

Metric-type-1<\/p>\n

\u5f53\u5916\u90e8\u8def\u7531\u7684\u5f00\u9500\u4e0e\u81ea\u6cbb\u7cfb\u7edf\u5185\u90e8\u5f00\u9500\u76f8\u5f53\uff0c\u5e76\u4e14\u548cOSPF\u81ea\u8eab\u8def\u7531\u7684\u5f00\u9500\u5177\u6709\u53ef\u6bd4\u6027\u65f6\uff0c\u53ef\u4ee5\u8ba4\u4e3a\u8fd9\u7c7b\u8def\u7531\u53ef\u4fe1\u7a0b\u5ea6\u8f83\u9ad8\uff0c\u5c06\u5176\u914d\u7f6e\u6210Metric-type-1<\/p>\n

Metric-type-2<\/p>\n

\u5f53ASBR\u9053AS\u4e4b\u5916\u7684\u5f00\u9500\u8fdc\u8fdc\u5927\u4e8e\u5728AS\u4e4b\u5185\u5230\u8fbeASBR\u5f00\u9500\u65f6\uff0c\u53ef\u4ee5\u8ba4\u4e3a\u8fd9\u7c7b\u8def\u7531\u7684\u53ef\u4fe1\u7a0b\u5ea6\u8f83\u4f4e\uff0c\u5c06\u5176\u914d\u7f6e\u6210Metric-type-2<\/p>\n

Metric-type-2\u5916\u90e8\u8def\u7531\u7684\u5f00\u9500\u7b49\u4e8eAS\u5916\u90e8\u5f00\u9500<\/p>\n

\"1741833235906-7431ff78-e307-4782-9b62-aae8822aafcf.png\"<\/p>\n

OSPF\u652f\u6301\u5c06AS\u5916\u90e8\u8def\u7531\u5f15\u5165\u672cAS<\/p>\n

ASBR\u5c06\u5916\u90e8\u8def\u7531\u5f15\u5165OSPF\u540e\u4f7f\u75285\u7c7bLSA\u63cf\u8ff0\u5b83\u4eec\uff0c\u4e0eASBR\u540c\u4e00\u4e2a\u533a\u57df\u7684\u8def\u7531\u80fd\u6839\u636e5\u7c7bLSA\u4ee5\u53ca\u533a\u57df\u51851\u30012\u7c7bLSA\u5b8c\u6210\u5916\u90e8\u8def\u7531\u8ba1\u7b97\uff0c\u4e0eASBR\u4e0d\u540c\u533a\u57df\u7684\u8def\u7531\u5668\u9700\u8981\u501f\u52a9ABR\u8f6c\u6362\u76844\u7c7bLSA\u624d\u80fd\u5b8c\u6210\u8def\u7531\u8ba1\u7b97<\/p>\n

OSPF\u5c06\u5916\u90e8\u8def\u7531\u5f15\u5165\u5230OSPF\u540e\uff0c\u53ef\u4ee5\u8bbe\u7f6e\u8def\u7531\u7684\u5ea6\u91cf\u503c\u7c7b\u578b\uff0c\u4e0d\u540c\u7684\u5ea6\u91cf\u503c\u7c7b\u578b\u7684\u5916\u90e8\u8def\u7531 \u5f00\u9500\u8ba1\u7b97\u7684\u65b9\u5f0f\u4e0d\u540c\uff0c\u5176\u9732\u5929\u7684\u4f18\u5148\u7ea7\u4e5f\u4e0d\u540c\uff0ctype1\u7684\u4f18\u5148\u7ea7\u9ad8\u4e8etype2<\/p>\n

\n

\u66f4\u65b0: 2025-03-13 10:33:59
\n\u539f\u6587: https:\/\/www.yuque.com\/yuhui.net\/network\/sakdrhgq7zpcifsu<\/a><\/p>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":"

OSPF\u8def\u7531\u8ba1\u7b97 \u540c\u4e00\u533a\u57df\u7684OSPF\u8def\u7531\u5668\u62e5\u6709\u5b8c\u5168\u4e00\u81f4\u7684LSDB\u3002\u5728\u533a\u57df\u5185 OSPF\u91c7\u7528SPF\u7b97\u6cd5\u5b8c\u6210\u8def\u7531\u8ba1\u7b97 \u533a\u57df\u5212\u5206\u53ef\u4ee5\u4e00\u5b9a\u7a0b\u5ea6\u7f13\u89e3\u8def\u7531\u5668\u538b\u529b OSPF\u652f\u6301\u5916\u90e8\u8def\u7531\u5f15\u5165\uff0c\u4ece\u800c\u4f7f\u5f97OSPF\u77e5\u6653\u5230\u8fbe\u57df\u5916\u7684\u8def\u7531 \u4e00\u3001\u533a\u57df\u5185\u8def\u7531\u8ba1\u7b97 LSA\u6982\u8ff0 LSA\u662fOSPF\u8def\u7531\u8ba1\u7b97\u7684\u5173\u952e\u4f9d\u636e OSPF\u7684LSU\u62a5\u6587\u53ef\u4ee5\u643a\u5e26\u591a\u79cd\u4e0d\u540c\u7c7b\u578b\u7684LSA \u5404\u79cd\u7c7b\u578b\u7684LSA\u62e5\u6709\u76f8\u540c\u7684\u62a5\u6587\u5934\u90e8 \u5e38\u89c1\u7684LSA\u7c7b\u578b 1-Route L […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[87,62,3],"tags":[90,95],"class_list":["post-557","post","type-post","status-publish","format-standard","hentry","category-huaweihcip-datacom","category-huaweiluyouyujiaohuan","category-interface","tag-luyou","tag-ospf"],"_links":{"self":[{"href":"https:\/\/www.youvii.site\/index.php\/wp-json\/wp\/v2\/posts\/557","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.youvii.site\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.youvii.site\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.youvii.site\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.youvii.site\/index.php\/wp-json\/wp\/v2\/comments?post=557"}],"version-history":[{"count":0,"href":"https:\/\/www.youvii.site\/index.php\/wp-json\/wp\/v2\/posts\/557\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.youvii.site\/index.php\/wp-json\/wp\/v2\/media?parent=557"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.youvii.site\/index.php\/wp-json\/wp\/v2\/categories?post=557"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.youvii.site\/index.php\/wp-json\/wp\/v2\/tags?post=557"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}