{"id":1517,"date":"2025-11-10T18:01:20","date_gmt":"2025-11-10T09:01:20","guid":{"rendered":"https:\/\/mylifeisbeautiful555.net\/?page_id=1517"},"modified":"2025-11-10T18:21:32","modified_gmt":"2025-11-10T09:21:32","slug":"ospf%e3%81%ae%e3%82%b3%e3%83%9e%e3%83%b3%e3%83%89%e8%a9%b3%e7%b4%b0show-ip-ospf-database","status":"publish","type":"page","link":"https:\/\/mylifeisbeautiful555.net\/?page_id=1517","title":{"rendered":"OSPF\u306e\u30b3\u30de\u30f3\u30c9(\u8a73\u7d30)(show ip ospf database)"},"content":{"rendered":"\n

OSPF\u3067\u4f7f\u7528\u3055\u308c\u308b LSDB\uff08Link State Database\uff09\uff1d\u30ea\u30f3\u30af\u30b9\u30c6\u30fc\u30c8\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9<\/strong> \u306e\u5185\u5bb9\u3092\u78ba\u8a8d\u3059\u308b\u305f\u3081\u306e\u30b3\u30de\u30f3\u30c9\u3067\u3059\u3002<\/p>\n\n\n\n

OSPF\u306f\u5404\u30eb\u30fc\u30bf\u304c\u3053\u306eLSDB\u3092\u3082\u3068\u306b SPF\uff08\u30c0\u30a4\u30af\u30b9\u30c8\u30e9\uff09\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0<\/strong> \u3092\u5b9f\u884c\u3057\u3001\u6700\u77ed\u7d4c\u8def\u30c4\u30ea\u30fc\uff08SPF\u30c4\u30ea\u30fc\uff09\u3092\u4f5c\u308a\u307e\u3059\u3002
\u3053\u306e\u30b3\u30de\u30f3\u30c9\u3067\u300c\u3069\u3093\u306aLSA\u304c\u5b58\u5728\u3057\u3066\u3044\u308b\u304b\u300d\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n

\u57fa\u672c\u69cb\u6587<\/h2>\n\n\n\n
Router# show ip ospf database<\/code><\/pre>\n\n\n\n
\u51fa\u529b\u4f8b\uff08\u5168\u4f53\u8868\u793a\uff09<\/h2>\n\n\n\n
Router# show ip ospf database\n\n            OSPF Router with ID (1.1.1.1) (Process ID 1)\n\n                Router Link States (Area 0)\n\nLink ID         ADV Router      Age     Seq#       Checksum Link count\n1.1.1.1         1.1.1.1         600     0x8000000A 0x0098   3\n2.2.2.2         2.2.2.2         710     0x80000009 0x006A   3\n\n                Net Link States (Area 0)\n\nLink ID         ADV Router      Age     Seq#       Checksum\n10.1.1.1        2.2.2.2         670     0x80000007 0x00AF\n\n                Summary Net Link States (Area 0)\n\nLink ID         ADV Router      Age     Seq#       Checksum\n172.16.1.0      3.3.3.3         430     0x80000005 0x00B4<\/code><\/pre>\n\n\n\n
\u5404\u9805\u76ee\u306e\u610f\u5473<\/h2>\n\n\n\n
\u9805\u76ee<\/th>\u8aac\u660e<\/th><\/tr><\/thead>
Link ID<\/strong><\/td>LSA\u3092\u8b58\u5225\u3059\u308bID\u3002\u30eb\u30fc\u30bfID\u3084\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\u306a\u3069<\/td><\/tr>
ADV Router<\/strong><\/td>\u305d\u306eLSA\u3092\u5e83\u544a\uff08Advertise\uff09\u3057\u3066\u3044\u308b\u30eb\u30fc\u30bf\u306eRouter ID<\/td><\/tr>
Age<\/strong><\/td>LSA\u304c\u751f\u6210\u3055\u308c\u3066\u304b\u3089\u306e\u6642\u9593\uff08\u79d2\uff09\u30021800\u79d2\u3067\u518d\u9001\u4fe1\u30013600\u79d2\u3067\u524a\u9664<\/td><\/tr>
Seq#<\/strong><\/td>LSA\u306e\u30b7\u30fc\u30b1\u30f3\u30b9\u756a\u53f7\u3002\u65b0\u3057\u3044\u307b\u3069\u5024\u304c\u5927\u304d\u3044<\/td><\/tr>
Checksum<\/strong><\/td>\u30c7\u30fc\u30bf\u6574\u5408\u6027\u78ba\u8a8d\u7528<\/td><\/tr>
Link count<\/strong><\/td>Router LSA\u306e\u5834\u5408\u3001\u30ea\u30f3\u30af\u6570\u3092\u793a\u3059<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
LSA\uff08Link-State Advertisement\uff09\u306e\u7a2e\u985e<\/h2>\n\n\n\n
\u7a2e\u985e<\/th>\u540d\u79f0<\/th>\u5185\u5bb9<\/th>\u751f\u6210\u5143<\/th><\/tr><\/thead>
Type 1<\/strong><\/td>Router LSA<\/td>\u30eb\u30fc\u30bf\u81ea\u8eab\u306e\u63a5\u7d9a\u60c5\u5831<\/td>\u5404\u30eb\u30fc\u30bf\uff08\u30a8\u30ea\u30a2\u5185\u306e\u307f\uff09<\/td><\/tr>
Type 2<\/strong><\/td>Network LSA<\/td>DR\u304c\u30de\u30eb\u30c1\u30a2\u30af\u30bb\u30b9\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u4ee3\u8868\u3057\u3066\u5e83\u544a<\/td>DR\uff08\u30a8\u30ea\u30a2\u5185\uff09<\/td><\/tr>
Type 3<\/strong><\/td>Summary LSA<\/td>\u4ed6\u30a8\u30ea\u30a2\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u60c5\u5831<\/td>ABR<\/td><\/tr>
Type 4<\/strong><\/td>ASBR Summary LSA<\/td>ASBR\u307e\u3067\u306e\u7d4c\u8def<\/td>ABR<\/td><\/tr>
Type 5<\/strong><\/td>External LSA<\/td>\u5916\u90e8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u7d4c\u8def\uff08\u4f8b\uff1aEIGRP\u3001\u9759\u7684\u30eb\u30fc\u30c8\uff09<\/td>ASBR<\/td><\/tr>
Type 7<\/strong><\/td>NSSA External LSA<\/td>NSSA\u30a8\u30ea\u30a2\u3067\u306e\u5916\u90e8\u7d4c\u8def\u60c5\u5831<\/td>NSSA\u5185\u306eASBR<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
\u7279\u5b9a\u306eLSA\u30bf\u30a4\u30d7\u306e\u307f\u8868\u793a<\/h2>\n\n\n\n
\u30b3\u30de\u30f3\u30c9<\/th>\u8aac\u660e<\/th><\/tr><\/thead>
show ip ospf database router<\/td>Type 1\uff08Router LSA\uff09\u306e\u307f\u8868\u793a<\/td><\/tr>
show ip ospf database network<\/td>Type 2\uff08Network LSA\uff09\u306e\u307f\u8868\u793a<\/td><\/tr>
show ip ospf database summary<\/td>Type 3\/4\uff08Summary LSA\uff09\u3092\u8868\u793a<\/td><\/tr>
show ip ospf database external<\/td>Type 5\uff08External LSA\uff09\u3092\u8868\u793a<\/td><\/tr>
show ip ospf database nssa-external<\/td>Type 7\uff08NSSA External LSA\uff09\u3092\u8868\u793a<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
Router LSA \u8a73\u7d30\u4f8b<\/h2>\n\n\n\n
Router# show ip ospf database router 1.1.1.1\n\n            Router Link States (Area 0)\n\nLink ID: 1.1.1.1 (Router ID)\nNumber of Links: 3\n\nLink connected to: a Transit Network\n (Link ID) Designated Router address: 10.1.1.1\n (Link Data) Router Interface address: 10.1.1.2\n Number of TOS metrics: 0\n TOS 0 Metrics: 10<\/code><\/pre>\n\n\n\n
\u3053\u306eLSA\u306f\u300c\u30eb\u30fc\u30bf1.1.1.1\u304c\u30a8\u30ea\u30a20\u5185\u3067\u3069\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u63a5\u7d9a\u3057\u3066\u3044\u308b\u304b\u300d\u3092\u8868\u3057\u3066\u3044\u307e\u3059\u3002
\u3053\u3053\u3067\u306e\u300cMetric: 10\u300d\u304cOSPF\u30b3\u30b9\u30c8\u5024\u3067\u3059\u3002<\/p>\n\n\n\n
\u4f7f\u3044\u3069\u3053\u308d<\/h2>\n\n\n\n
\u7d4c\u8def\u60c5\u5831\u306e\u4e0d\u4e00\u81f4\u8abf\u67fb<\/strong><\/p>\n\n\n\n
    \n
  • \u30eb\u30fc\u30bf\u9593\u3067LSDB\u306e\u5185\u5bb9\uff08LSA\u6570\u3084Seq#\uff09\u304c\u9055\u3046\u5834\u5408\u3001SPF\u7d50\u679c\u3082\u7570\u306a\u308b
    \u2192 \u30cd\u30a4\u30d0\u30fc\u306eLSDB\u540c\u671f\u4e0d\u826f\u306e\u53ef\u80fd\u6027\uff08Adjacency\u4e0d\u6210\u7acb\u3084MTU\u4e0d\u4e00\u81f4\u306a\u3069\uff09<\/li>\n<\/ul>\n\n\n\n
    \u5916\u90e8\u7d4c\u8def\uff08Type 5\uff09\u78ba\u8a8d<\/strong><\/p>\n\n\n\n
      \n
    • \u5916\u90e8\u30eb\u30fc\u30c8\uff08\u4f8b\uff1a\u30c7\u30d5\u30a9\u30eb\u30c8\u30eb\u30fc\u30c8\u3001\u9759\u7684\u7d4c\u8def\u518d\u914d\u5e03\uff09\u304c\u6b63\u3057\u304f\u5e83\u307e\u3063\u3066\u3044\u308b\u304b\u78ba\u8a8d\u53ef\u80fd<\/li>\n<\/ul>\n\n\n\n
      SPF\u306e\u5165\u529b\u78ba\u8a8d<\/strong><\/p>\n\n\n\n
        \n
      • \u5b9f\u969b\u306b\u300c\u3069\u306eLSA\u304cSPF\u30c4\u30ea\u30fc\u4f5c\u6210\u306b\u4f7f\u308f\u308c\u3066\u3044\u308b\u304b\u300d\u3092\u898b\u3089\u308c\u308b<\/li>\n<\/ul>\n\n\n\n
        <\/p>\n","protected":false},"excerpt":{"rendered":"
        OSPF\u3067\u4f7f\u7528\u3055\u308c\u308b LSDB\uff08Link State Database\uff09\uff1d\u30ea\u30f3\u30af\u30b9\u30c6\u30fc\u30c8\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9 \u306e\u5185\u5bb9\u3092\u78ba\u8a8d\u3059\u308b\u305f\u3081\u306e\u30b3\u30de\u30f3\u30c9\u3067\u3059\u3002 OSPF\u306f\u5404\u30eb\u30fc\u30bf\u304c\u3053\u306eLSDB\u3092\u3082\u3068\u306b SPF\uff08\u30c0\u30a4\u30af\u30b9\u30c8\u30e9\uff09\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0 \u3092 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1517","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/mylifeisbeautiful555.net\/index.php?rest_route=\/wp\/v2\/pages\/1517","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mylifeisbeautiful555.net\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/mylifeisbeautiful555.net\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/mylifeisbeautiful555.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mylifeisbeautiful555.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1517"}],"version-history":[{"count":3,"href":"https:\/\/mylifeisbeautiful555.net\/index.php?rest_route=\/wp\/v2\/pages\/1517\/revisions"}],"predecessor-version":[{"id":1522,"href":"https:\/\/mylifeisbeautiful555.net\/index.php?rest_route=\/wp\/v2\/pages\/1517\/revisions\/1522"}],"wp:attachment":[{"href":"https:\/\/mylifeisbeautiful555.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1517"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}