{"id":1437,"date":"2025-10-27T23:25:29","date_gmt":"2025-10-27T14:25:29","guid":{"rendered":"https:\/\/mylifeisbeautiful555.net\/?page_id=1437"},"modified":"2025-10-27T23:25:29","modified_gmt":"2025-10-27T14:25:29","slug":"ospf%e3%81%a8%e3%81%af","status":"publish","type":"page","link":"https:\/\/mylifeisbeautiful555.net\/?page_id=1437","title":{"rendered":"OSPF\u3068\u306f"},"content":{"rendered":"\n

OSPF\uff08Open Shortest Path First\uff09\u3068\u306f\u3001<\/strong>\u30ea\u30f3\u30af\u30b9\u30c6\u30fc\u30c8\u578b\u306e\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30d7\u30ed\u30c8\u30b3\u30eb<\/strong>\u3067\u3059\u3002
\u4e3b\u306b\u3001\u5185\u90e8\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u30d7\u30ed\u30c8\u30b3\u30eb\uff08IGP\uff09\u3068\u3057\u3066LAN\u3084\u4f01\u696d\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u3067\u5e83\u304f\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n

OSPF\u3067\u306f\u3001\u5b9b\u5148\u307e\u3067\u306e\u7d4c\u8def\u4e0a\u306e\u5404\u30ea\u30f3\u30af\u30b3\u30b9\u30c8\u3092\u5408\u8a08<\/strong>\u3057\u3066\u6700\u7d42\u7684\u306a\u30eb\u30fc\u30c8\u30b3\u30b9\u30c8\u3092\u6c42\u3081\u307e\u3059\u3002<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

OSPF\u306e\u30b3\u30b9\u30c8<\/strong>\u3068\u306f\u3001
\u300c\u305d\u306e\u30eb\u30fc\u30c8\uff08\u7d4c\u8def\uff09\u306e\u901a\u4fe1\u30b3\u30b9\u30c8<\/strong>\uff1d\u901a\u308b\u30ea\u30f3\u30af\u306e\u512a\u5148\u5ea6\u300d\u3092\u793a\u3059\u5024\u306e\u3053\u3068\u3067\u3059\u3002
OSPF\u306f\u300c\u6700\u3082\u30b3\u30b9\u30c8\u304c\u4f4e\u3044\u7d4c\u8def\u300d\u3092\u6700\u77ed\u7d4c\u8def\u3068\u3057\u3066\u9078\u3073\u307e\u3059\u3002<\/p>\n\n\n\n

\u57fa\u672c\u306e\u8003\u3048\u65b9<\/h3>\n\n\n\n
    \n
  • OSPF\u3067\u306f\u30b3\u30b9\u30c8\u304c\u4f4e\u3044\uff1d\u901f\u3044\uff0f\u512a\u5148\u7684\u306b\u4f7f\u3044\u305f\u3044\u7d4c\u8def\u3068\u307f\u306a\u3055\u308c\u307e\u3059\u3002<\/li>\n\n\n\n
  • \u30b3\u30b9\u30c8\u306f\u30eb\u30fc\u30bf\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u5358\u4f4d<\/strong>\u3067\u8a2d\u5b9a\u3055\u308c\u307e\u3059\u3002<\/li>\n\n\n\n
  • \u7d4c\u8def\u5168\u4f53\u306e\u30b3\u30b9\u30c8\u306f\u3001\u901a\u904e\u3059\u308b\u3059\u3079\u3066\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u306e\u30b3\u30b9\u30c8\u306e\u5408\u8a08<\/strong>\u3067\u6c7a\u307e\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n\n\n\n
    \u56de\u7dda\u901f\u5ea6<\/th>\u8a08\u7b97\u5f0f<\/th>\u30b3\u30b9\u30c8<\/th><\/tr><\/thead>
    10 Mbps<\/td>100,000,000 \u00f7 10,000,000<\/td>10<\/td><\/tr>
    100 Mbps<\/td>100,000,000 \u00f7 100,000,000<\/td>1<\/td><\/tr>
    1 Gbps<\/td>100,000,000 \u00f7 1,000,000,000<\/td>0.1 \u2192 \u5207\u308a\u6368\u3066\u30661<\/td><\/tr>
    10 Gbps<\/td>\u540c\u4e0a\uff08\u6700\u5c0f\u5024\u304c1\u306a\u306e\u3067\uff09<\/td>1<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

    \u9ad8\u901f\u56de\u7dda\uff081G\u4ee5\u4e0a\uff09\u3067\u306f\u30b3\u30b9\u30c8\u304c\u3059\u3079\u3066\u300c1\u300d\u306b\u306a\u3063\u3066\u3057\u307e\u3046\u305f\u3081\u3001
    \u5b9f\u969b\u306e\u8a2d\u8a08\u3067\u306f auto-cost reference-bandwidth<\/code> \u30b3\u30de\u30f3\u30c9\u3067\u57fa\u6e96\u5024\u3092\u5909\u66f4\u3059\u308b\u3053\u3068\u304c\u591a\u3044\u3067\u3059\u3002<\/p>\n\n\n\n

    \u57fa\u6e96\u5024\u306e\u5909\u66f4\u4f8b\uff08Cisco\uff09<\/h3>\n\n\n\n
    router ospf 1\n auto-cost reference-bandwidth 10000<\/code><\/pre>\n\n\n\n
    \u2192 \u3053\u308c\u306710Gbps\u56de\u7dda\u307e\u3067\u30b3\u30b9\u30c8\u5dee\u3092\u3064\u3051\u3089\u308c\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059<\/p>\n\n\n\n
    \u624b\u52d5\u8a2d\u5b9a<\/h3>\n\n\n\n
    \u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u3054\u3068\u306b\u30b3\u30b9\u30c8\u3092\u624b\u52d5\u3067\u8a2d\u5b9a\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n
    interface GigabitEthernet0\/0\n ip ospf cost 5<\/code><\/pre>\n\n\n\n
    \u5404\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u306eOSPF\u30b3\u30b9\u30c8\u3092\u78ba\u8a8d<\/h3>\n\n\n\n
    show ip ospf interface<\/code><\/pre>\n\n\n\n
    \u51fa\u529b\u4f8b\uff1a<\/h4>\n\n\n\n
    Router# show ip ospf interface GigabitEthernet0\/0<\/code><\/pre>\n\n\n\n
    \u3059\u3079\u3066\u306eOSPF\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u3092\u4e00\u89a7\u8868\u793a<\/h3>\n\n\n\n
    show ip ospf interface brief<\/code><\/pre>\n\n\n\n
    \u51fa\u529b\u4f8b\uff1a<\/h4>\n\n\n\n
    Router# show ip ospf interface brief\nInterface    PID   Area  IP Address     Cost  State Nbrs F\/C<\/code><\/pre>\n\n\n\n
    \u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30c6\u30fc\u30d6\u30eb\u3067\u7d4c\u8def\u306e\u7dcf\u30b3\u30b9\u30c8\u3092\u78ba\u8a8d<\/h3>\n\n\n\n
    show ip route ospf<\/code><\/pre>\n\n\n\n
    \u51fa\u529b\u4f8b\uff1a<\/h4>\n\n\n\n
    O    10.0.0.0\/24 [110\/30] via 192.168.1.2, 00:00:22, GigabitEthernet0\/0<\/code><\/pre>\n\n\n\n
    OSPF\u306e\u57fa\u672c\u6982\u8981<\/h2>\n\n\n\n
    \u9805\u76ee<\/th>\u5185\u5bb9<\/th><\/tr><\/thead>
    \u30d7\u30ed\u30c8\u30b3\u30eb\u540d<\/td>Open Shortest Path First<\/td><\/tr>
    \u7a2e\u985e<\/td>IGP\uff08Interior Gateway Protocol\uff09<\/td><\/tr>
    \u65b9\u5f0f<\/td>\u30ea\u30f3\u30af\u30b9\u30c6\u30fc\u30c8\u578b\uff08Link-State\uff09<\/td><\/tr>
    \u7d4c\u8def\u8a08\u7b97\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0<\/td>SPF\uff08Shortest Path First\uff09= \u30c0\u30a4\u30af\u30b9\u30c8\u30e9\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0<\/td><\/tr>
    \u7ba1\u7406\u8ddd\u96e2\uff08AD\u5024\uff09<\/td>110<\/td><\/tr>
    \u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64\u30d7\u30ed\u30c8\u30b3\u30eb<\/td>IP\uff08\u30d7\u30ed\u30c8\u30b3\u30eb\u756a\u53f7 89\uff09\u3092\u76f4\u63a5\u4f7f\u7528\uff08TCP\/UDP\u3067\u306f\u306a\u3044\uff09<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
    <\/p>\n","protected":false},"excerpt":{"rendered":"
    OSPF\uff08Open Shortest Path First\uff09\u3068\u306f\u3001\u30ea\u30f3\u30af\u30b9\u30c6\u30fc\u30c8\u578b\u306e\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3059\u3002\u4e3b\u306b\u3001\u5185\u90e8\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u30d7\u30ed\u30c8\u30b3\u30eb\uff08IGP\uff09\u3068\u3057\u3066LAN\u3084\u4f01\u696d\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u3067\u5e83\u304f\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002 OSPF […]<\/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-1437","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/mylifeisbeautiful555.net\/index.php?rest_route=\/wp\/v2\/pages\/1437","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=1437"}],"version-history":[{"count":3,"href":"https:\/\/mylifeisbeautiful555.net\/index.php?rest_route=\/wp\/v2\/pages\/1437\/revisions"}],"predecessor-version":[{"id":1442,"href":"https:\/\/mylifeisbeautiful555.net\/index.php?rest_route=\/wp\/v2\/pages\/1437\/revisions\/1442"}],"wp:attachment":[{"href":"https:\/\/mylifeisbeautiful555.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1437"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}