{"id":5917,"date":"2025-09-23T16:08:37","date_gmt":"2025-09-23T07:08:37","guid":{"rendered":"https:\/\/sky-peace.net\/?p=5917"},"modified":"2025-09-23T16:08:37","modified_gmt":"2025-09-23T07:08:37","slug":"nw-sp-4","status":"publish","type":"post","link":"https:\/\/sky-peace.net\/certified\/nw-sp-4\/","title":{"rendered":"\u3010NW\u8a66\u9a13 \u5348\u5f8c\u5bfe\u7b56\u3011\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\uff06\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u983b\u51fa\u6280\u8853\uff08BGP\/VLAN\/STP\/VRRP\uff09\u3092\u5fb9\u5e95\u89e3\u8aac\uff01"},"content":{"rendered":"

\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u30da\u30b7\u30e3\u30ea\u30b9\u30c8\u5348\u5f8c\u5bfe\u7b56\u30b7\u30ea\u30fc\u30ba\u306e\u7b2c2\u5f3e\u3078\u3088\u3046\u3053\u305d\u3002\u524d\u56de\u306e\u8a18\u4e8b\u3067\u306f\u3001DNS\u3084IPsec\u3068\u3044\u3063\u305f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u6839\u5e79\u3092\u306a\u3059\u300c\u30c8\u30c3\u30d75\u6280\u8853\u300d\u3092\u89e3\u8aac\u3057\u307e\u3057\u305f\u3002\u4eca\u56de\u306f\u305d\u3053\u304b\u3089\u4e00\u6b69\u9032\u307f\u3001\u3088\u308a\u5177\u4f53\u7684\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u300c\u63a5\u7d9a\u6027\u300d\u3068\u300c\u53ef\u7528\u6027\u300d<\/strong>\u3092\u652f\u3048\u308b\u6280\u8853\u7fa4\u306b\u7126\u70b9\u3092\u5f53\u3066\u307e\u3059\u3002<\/p>\n

\u5348\u5f8c\u554f\u984c\u3067\u63d0\u793a\u3055\u308c\u308b\u8907\u96d1\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u69cb\u6210\u56f3\u3002\u305d\u306e\u4e2d\u3067\u300c\u3069\u306e\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u304c\u3069\u3053\u306b\u901a\u4fe1\u3067\u304d\u308b\u306e\u304b\u300d\u3092\u6c7a\u5b9a\u3059\u308b\u306e\u304c\u3001VLAN\u3084STP\u3068\u3044\u3063\u305fL2\uff08\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\uff09\u6280\u8853<\/strong>\u3067\u3042\u308a\u3001\u300c\u7570\u306a\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u9593\u3092\u3069\u3046\u7e4b\u3050\u304b\u300d\u3092\u53f8\u308b\u306e\u304cBGP\u306a\u3069\u306eL3\uff08\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\uff09\u6280\u8853<\/strong>\u3067\u3059\u3002\u3055\u3089\u306b\u3001\u969c\u5bb3\u6642\u306b\u3082\u901a\u4fe1\u3092\u6b62\u3081\u306a\u3044\u305f\u3081\u306e\u5197\u9577\u5316\u6280\u8853\uff08VRRP\uff09<\/strong>\u3082\u6b20\u304b\u305b\u307e\u305b\u3093\u3002<\/p>\n

\u672c\u8a18\u4e8b\u3067\u306f\u3001\u3053\u308c\u3089L2\/L3\u306e\u91cd\u8981\u6280\u8853\u3092\u4f53\u7cfb\u7684\u306b\u5b66\u3073\u3001\u70b9\u3068\u70b9\u3060\u3063\u305f\u77e5\u8b58\u3092\u300c\u69cb\u6210\u56f3\u3092\u8aad\u307f\u89e3\u304f\u529b\u300d\u3078\u3068\u5909\u3048\u308b\u3053\u3068\u3092\u76ee\u6307\u3057\u307e\u3059\u3002<\/p>\n

\n

1. \u3010BGP\u3011\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3092\u7e4b\u3050\u7d4c\u8def\u5236\u5fa1\u2502AS\u9593\u306e\u3084\u308a\u53d6\u308a\u3092\u7406\u89e3\u3059\u308b<\/h2>\n

OSPF\u304c\u7d44\u7e54\u306e\u300c\u4e2d\u300d\u306e\u7d4c\u8def\u3092\u6c7a\u3081\u308b\u30d7\u30ed\u30c8\u30b3\u30eb\uff08IGP\uff09\u3067\u3042\u308b\u306e\u306b\u5bfe\u3057\u3001BGP\uff08Border Gateway Protocol\uff09<\/strong>\u306f\u3001\u72ec\u7acb\u3057\u305f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u3042\u308bAS\uff08Autonomous System\u3001\u81ea\u5f8b\u30b7\u30b9\u30c6\u30e0\uff09<\/strong>\u306e\u300c\u9593\u300d\u306e\u7d4c\u8def\u60c5\u5831\u3092\u4ea4\u63db\u3059\u308b\u305f\u3081\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3059\u3002\u30d7\u30ed\u30d0\u30a4\u30c0\u540c\u58eb\u304c\u3069\u306e\u3088\u3046\u306b\u304a\u4e92\u3044\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3078\u306e\u9053\u3092\u6559\u3048\u5408\u3046\u304b\u3092\u6c7a\u3081\u308b\u3001\u307e\u3055\u306b\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u305d\u306e\u3082\u306e\u3092\u6210\u308a\u7acb\u305f\u305b\u3066\u3044\u308b<\/strong>\u30d7\u30ed\u30c8\u30b3\u30eb\u3068\u8a00\u3048\u307e\u3059\u3002<\/p>\n

BGP\u306e\u5f79\u5272\u3068AS\u306e\u6982\u5ff5<\/h3>\n

AS\u3068\u306f\u3001\u5358\u4e00\u306e\u7ba1\u7406\u30dd\u30ea\u30b7\u30fc\u306b\u3088\u3063\u3066\u904b\u7528\u3055\u308c\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u96c6\u307e\u308a\u306e\u3053\u3068\u3067\u3001\u4e00\u822c\u7684\u306b\u306f\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u30b5\u30fc\u30d3\u30b9\u30d7\u30ed\u30d0\u30a4\u30c0\uff08ISP\uff09<\/strong>\u3084\u5927\u898f\u6a21\u306a\u4f01\u696d\u3001\u5927\u5b66\u306a\u3069\u304c\u4e00\u3064\u306eAS\u3092\u4fdd\u6709\u3057\u3066\u3044\u307e\u3059\u3002\u5404AS\u306b\u306f\u4e16\u754c\u3067\u4e00\u610f\u306eAS\u756a\u53f7<\/strong>\u304c\u5272\u308a\u5f53\u3066\u3089\u308c\u307e\u3059\u3002BGP\u306e\u4e3b\u306a\u5f79\u5272\u306f\u3001\u3053\u306eAS\u304b\u3089\u5225\u306eAS\u3078\u306e\u300c\u3069\u306e\u7d4c\u8def\u3092\u4f7f\u3048\u3070\u76ee\u7684\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u305f\u3069\u308a\u3051\u308b\u304b\u300d\u3068\u3044\u3046\u7d4c\u8def\u60c5\u5831\uff08\u30d1\u30b9\u60c5\u5831\uff09<\/strong>\u3092\u4ea4\u63db\u3059\u308b\u3053\u3068\u306b\u3042\u308a\u307e\u3059\u3002<\/p>\n

eBGP\u3068iBGP\u306e\u9055\u3044<\/h3>\n

BGP\u306b\u306f\u3001\u8ab0\u3068\u7d4c\u8def\u60c5\u5831\u3092\u4ea4\u63db\u3059\u308b\u304b\u306b\u3088\u3063\u30662\u3064\u306e\u30e2\u30fc\u30c9\u304c\u5b58\u5728\u3057\u307e\u3059\u3002<\/p>\n

    \n
  • eBGP (External BGP)<\/strong>: \u7570\u306a\u308bAS<\/strong>\u306b\u5c5e\u3059\u308b\u30eb\u30fc\u30bf\u9593\u3067\u7d4c\u8def\u60c5\u5831\u3092\u4ea4\u63db\u3057\u307e\u3059\u3002\u30d7\u30ed\u30d0\u30a4\u30c0A\u3068\u30d7\u30ed\u30d0\u30a4\u30c0B\u304c\u63a5\u7d9a\u3059\u308b\u5883\u754c\u30eb\u30fc\u30bf\u540c\u58eb\u304c\u4f1a\u8a71\u3059\u308b\u306e\u304ceBGP\u3067\u3059\u3002<\/li>\n
  • iBGP (Internal BGP)<\/strong>: \u540c\u3058AS\u5185<\/strong>\u306e\u30eb\u30fc\u30bf\u9593\u3067\u3001eBGP\u304b\u3089\u53d7\u3051\u53d6\u3063\u305f\u7d4c\u8def\u60c5\u5831\u3092\u5171\u6709\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001AS\u5185\u306e\u3059\u3079\u3066\u306e\u30eb\u30fc\u30bf\u304c\u5916\u90e8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3078\u306e\u6700\u9069\u306a\u51fa\u53e3\u3092\u77e5\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/li>\n<\/ul>\n

    \u5b66\u7fd2\u306e\u30dd\u30a4\u30f3\u30c8\uff1aAS_PATH\u30a2\u30c8\u30ea\u30d3\u30e5\u30fc\u30c8<\/h3>\n

    BGP\u306f\u3001\u5358\u306b\u6700\u3082\u8fd1\u3044\u7d4c\u8def\u3092\u9078\u3076\u3060\u3051\u3067\u306a\u304f\u3001\u300c\u3069\u306eAS\u3092\u7d4c\u7531\u3057\u3066\u304d\u305f\u304b\u300d\u3068\u3044\u3046\u7d4c\u8def\u306e\u5c65\u6b74\u3067\u3042\u308bAS_PATH<\/strong>\u3092\u306f\u3058\u3081\u3068\u3059\u308b\u69d8\u3005\u306a\u30a2\u30c8\u30ea\u30d3\u30e5\u30fc\u30c8\uff08\u5c5e\u6027\uff09<\/strong>\u60c5\u5831\u306b\u57fa\u3065\u3044\u3066\u3001\u7d44\u7e54\u306e\u30dd\u30ea\u30b7\u30fc\uff08\u65b9\u91dd\uff09\u3092\u53cd\u6620\u3057\u305f\u8907\u96d1\u306a\u7d4c\u8def\u5236\u5fa1\u3092\u884c\u3044\u307e\u3059\u3002\u5348\u5f8c\u554f\u984c\u3067\u306f\u3001\u3053\u306eAS_PATH\u3092\u898b\u3066\u300c\u3069\u306e\u7d4c\u8def\u304c\u30eb\u30fc\u30d7\u3057\u3066\u3044\u306a\u3044\u304b\u300d\u300c\u3069\u306e\u3088\u3046\u306a\u30dd\u30ea\u30b7\u30fc\u3067\u7d4c\u8def\u304c\u9078\u629e\u3055\u308c\u3066\u3044\u308b\u304b\u300d\u3092\u8aad\u307f\u89e3\u304f\u529b\u304c\u554f\u308f\u308c\u307e\u3059\u3002<\/p>\n

    \n

    2. \u3010VLAN\u3011\u7269\u7406\u3092\u8ad6\u7406\u3067\u5206\u5272\u3059\u308b\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u6280\u8853\u2502\u30bf\u30b0VLAN\u306e\u4ed5\u7d44\u307f<\/h2>\n

    VLAN\uff08Virtual LAN\uff09<\/strong>\u306f\u30011\u53f0\u306e\u7269\u7406\u7684\u306a\u30b9\u30a4\u30c3\u30c1\u3092\u3001\u3042\u305f\u304b\u3082\u8907\u6570\u306e\u72ec\u7acb\u3057\u305f\u30b9\u30a4\u30c3\u30c1\u3067\u3042\u308b\u304b\u306e\u3088\u3046\u306b\u3001\u8ad6\u7406\u7684\u306b\u5206\u5272<\/strong>\u3059\u308b\u6280\u8853\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u540c\u3058\u30b9\u30a4\u30c3\u30c1\u306b\u63a5\u7d9a\u3055\u308c\u3066\u3044\u3066\u3082\u3001\u7570\u306a\u308bVLAN\u306b\u6240\u5c5e\u3059\u308b\u7aef\u672b\u540c\u58eb\u306f\u76f4\u63a5\u901a\u4fe1\u3067\u304d\u306a\u304f\u306a\u308a\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u5411\u4e0a\u3084\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u7ba1\u7406\u306e\u52b9\u7387\u5316\u304c\u56f3\u308c\u307e\u3059\u3002<\/p>\n

    VLAN\u306b\u3088\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5206\u5272\u306e\u30e1\u30ea\u30c3\u30c8<\/h3>\n

    VLAN\u306e\u6700\u5927\u306e\u30e1\u30ea\u30c3\u30c8\u306f\u3001\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30c9\u30e1\u30a4\u30f3\u306e\u5206\u5272<\/strong>\u306b\u3042\u308a\u307e\u3059\u3002\u901a\u5e38\u3001\u30b9\u30a4\u30c3\u30c1\u306f\u53d7\u4fe1\u3057\u305f\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30d5\u30ec\u30fc\u30e0\uff08ARP\u30ea\u30af\u30a8\u30b9\u30c8\u306a\u3069\uff09\u3092\u5168\u30dd\u30fc\u30c8\u306b\u8ee2\u9001\u3057\u307e\u3059\u304c\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304c\u5927\u898f\u6a21\u306b\u306a\u308b\u3068\u3001\u3053\u306e\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u304c\u5927\u91cf\u306b\u767a\u751f\u3057\u3001\u901a\u4fe1\u6027\u80fd\u3092\u8457\u3057\u304f\u4f4e\u4e0b\u3055\u305b\u307e\u3059\u3002VLAN\u3067\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u5c0f\u3055\u304f\u5206\u5272\u3059\u308b\u3053\u3068\u3067\u3001\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u304c\u5c4a\u304f\u7bc4\u56f2\u3092VLAN\u5185\u306b\u9650\u5b9a\u3057\u3001\u4e0d\u8981\u306a\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u524a\u6e1b\u3067\u304d\u307e\u3059\u3002<\/p>\n

    \u30a2\u30af\u30bb\u30b9\u30dd\u30fc\u30c8\u3068\u30c8\u30e9\u30f3\u30af\u30dd\u30fc\u30c8<\/h3>\n

    \u30b9\u30a4\u30c3\u30c1\u306e\u30dd\u30fc\u30c8\u306b\u306f\u3001VLAN\u306e\u6271\u3044\u306b\u5fdc\u3058\u3066\u4e3b\u306b2\u3064\u306e\u7a2e\u985e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

      \n
    • \u30a2\u30af\u30bb\u30b9\u30dd\u30fc\u30c8<\/strong>: 1\u3064\u306eVLAN\u306b\u306e\u307f\u6240\u5c5e\u3057\u3001\u4e3b\u306bPC\u3084\u30b5\u30fc\u30d0\u306a\u3069\u306e\u7aef\u672b\u3092\u63a5\u7d9a\u3059\u308b\u305f\u3081\u306e\u30dd\u30fc\u30c8\u3067\u3059\u3002\u3053\u306e\u30dd\u30fc\u30c8\u3092\u901a\u904e\u3059\u308b\u30c7\u30fc\u30bf\u306b\u306f\u3001VLAN\u3092\u8b58\u5225\u3059\u308b\u305f\u3081\u306e\u7279\u5225\u306a\u60c5\u5831\u306f\u4ed8\u52a0\u3055\u308c\u307e\u305b\u3093\u3002<\/li>\n
    • \u30c8\u30e9\u30f3\u30af\u30dd\u30fc\u30c8<\/strong>: \u8907\u6570\u306eVLAN\u306e\u30c7\u30fc\u30bf\u3092\u901a\u3059\u3053\u3068\u304c\u3067\u304d\u308b\u30dd\u30fc\u30c8\u3067\u3001\u4e3b\u306b\u30b9\u30a4\u30c3\u30c1\u540c\u58eb\u3092\u63a5\u7d9a\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u3069\u306eVLAN\u306e\u901a\u4fe1\u304b\u3092\u8b58\u5225\u3059\u308b\u305f\u3081\u306b\u3001VLAN\u30bf\u30b0\uff08IEEE 802.1Q\uff09<\/strong>\u3068\u547c\u3070\u308c\u308b\u8b58\u5225\u60c5\u5831\u3092\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u30d5\u30ec\u30fc\u30e0\u306b\u4ed8\u52a0\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n

      \u5b66\u7fd2\u306e\u30dd\u30a4\u30f3\u30c8\uff1aVLAN\u9593\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0<\/h3>\n

      VLAN\u306b\u3088\u3063\u3066\u5206\u5272\u3055\u308c\u305f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306f\u3001\u4e92\u3044\u306b\u76f4\u63a5\u901a\u4fe1\u3067\u304d\u307e\u305b\u3093\u3002\u3057\u304b\u3057\u3001\u5b9f\u969b\u306b\u306f\u300c\u55b6\u696d\u90e8VLAN\u300d\u3068\u300c\u958b\u767a\u90e8VLAN\u300d\u304c\u901a\u4fe1\u3057\u305f\u3044\u5834\u9762\u3082\u51fa\u3066\u304d\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306b\u3001\u7570\u306a\u308bVLAN\u9593\u3092\u901a\u4fe1\u3055\u305b\u308b\u306b\u306f\u3001IP\u30a2\u30c9\u30ec\u30b9\u306b\u57fa\u3065\u3044\u3066\u7d4c\u8def\u3092\u5224\u65ad\u3059\u308b\u30eb\u30fc\u30bf<\/strong>\u3084L3\u30b9\u30a4\u30c3\u30c1<\/strong>\u304c\u5fc5\u8981\u3067\u3059\u3002\u306a\u305cL3\uff08\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64\uff09\u306e\u6a5f\u5668\u304c\u5fc5\u8981\u306b\u306a\u308b\u306e\u304b\u3001\u305d\u306e\u7406\u7531\u3092\u3057\u3063\u304b\u308a\u7406\u89e3\u3057\u3066\u304a\u304f\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n

      \n

      3. \u3010STP\/RSTP\u3011\u30eb\u30fc\u30d7\u3092\u9632\u3050\u5fc5\u9808\u30d7\u30ed\u30c8\u30b3\u30eb\u2502\u30eb\u30fc\u30c8\u30d6\u30ea\u30c3\u30b8\u306e\u9078\u51fa\u65b9\u6cd5<\/h2>\n

      \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u53ef\u7528\u6027\u3092\u9ad8\u3081\u308b\u305f\u3081\u306b\u30b9\u30a4\u30c3\u30c1\u3092\u8907\u6570\u53f0\u4f7f\u3063\u3066\u7d4c\u8def\u3092\u5197\u9577\u5316\u3059\u308b\u3068\u3001\u610f\u56f3\u305b\u305aL2\u30eb\u30fc\u30d7<\/strong>\u304c\u767a\u751f\u3057\u3001\u901a\u4fe1\u304c\u9ebb\u75fa\u3057\u3066\u3057\u307e\u3046\u5371\u967a\u304c\u3042\u308a\u307e\u3059\u3002STP\uff08Spanning Tree Protocol\uff09<\/strong>\u306f\u3001\u3053\u306e\u3088\u3046\u306a\u30eb\u30fc\u30d7\u69cb\u6210\u3092\u691c\u77e5\u3057\u3001\u8ad6\u7406\u7684\u306b\u4e00\u90e8\u306e\u30dd\u30fc\u30c8\u3092\u30d6\u30ed\u30c3\u30af\u3059\u308b\u3053\u3068\u3067\u30eb\u30fc\u30d7\u3092\u9632\u3050\u3001L2\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u306b\u304a\u3051\u308b\u5fc5\u9808\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3059\u3002<\/p>\n

      \u306a\u305cSTP\u304c\u5fc5\u8981\u304b\uff1f\uff08L2\u30eb\u30fc\u30d7\u306e\u6050\u6016\uff09<\/h3>\n

      \u30b9\u30a4\u30c3\u30c1\u306f\u3001\u5b9b\u5148\u4e0d\u660e\u306e\u30d5\u30ec\u30fc\u30e0\u3084\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30d5\u30ec\u30fc\u30e0\u3092\u53d7\u3051\u53d6\u308b\u3068\u3001\u53d7\u4fe1\u30dd\u30fc\u30c8\u4ee5\u5916\u306e\u5168\u30dd\u30fc\u30c8\u306b\u8ee2\u9001\uff08\u30d5\u30e9\u30c3\u30c7\u30a3\u30f3\u30b0\uff09\u3057\u307e\u3059\u3002\u3082\u3057\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304c\u30eb\u30fc\u30d7\u69cb\u6210\u306b\u306a\u3063\u3066\u3044\u308b\u3068\u3001\u3053\u306e\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30d5\u30ec\u30fc\u30e0\u304c\u30b9\u30a4\u30c3\u30c1\u9593\u3092\u6c38\u9060\u306b\u5468\u308a\u7d9a\u3051\u3001\u81ea\u5df1\u5897\u6b96\u3057\u3066\u3044\u304d\u307e\u3059\u3002\u3053\u306e\u73fe\u8c61\u306f\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30b9\u30c8\u30fc\u30e0<\/strong>\u3068\u547c\u3070\u308c\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5168\u4f53\u306e\u5e2f\u57df\u3092\u4f7f\u3044\u679c\u305f\u3057\u3001\u6700\u7d42\u7684\u306b\u901a\u4fe1\u4e0d\u80fd\u306b\u9665\u3089\u305b\u307e\u3059\u3002<\/p>\n

      STP\u306e\u57fa\u672c\u52d5\u4f5c<\/h3>\n

      STP\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u306b\u30eb\u30fc\u30d7\u304c\u5b58\u5728\u3057\u306a\u3044\u30c4\u30ea\u30fc\u72b6\u306e\u69cb\u9020\u3092\u81ea\u52d5\u7684\u306b\u69cb\u7bc9\u3057\u307e\u3059\u3002<\/p>\n

        \n
      1. \u30eb\u30fc\u30c8\u30d6\u30ea\u30c3\u30b8\u306e\u9078\u51fa<\/strong>: \u307e\u305a\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b1\u53f0\u3060\u3051\u5b58\u5728\u3059\u308b\u300c\u89aa\u5206\u300d\u3068\u306a\u308b\u30eb\u30fc\u30c8\u30d6\u30ea\u30c3\u30b8<\/strong>\u3092\u6c7a\u3081\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u512a\u5148\u5ea6\u3068MAC\u30a2\u30c9\u30ec\u30b9\u306b\u3088\u3063\u3066\u81ea\u52d5\u7684\u306b\u9078\u51fa\u3055\u308c\u307e\u3059\u3002<\/li>\n
      2. \u30dd\u30fc\u30c8\u306e\u5f79\u5272\u6c7a\u5b9a<\/strong>: \u5404\u30b9\u30a4\u30c3\u30c1\u306f\u3001\u30eb\u30fc\u30c8\u30d6\u30ea\u30c3\u30b8\u3078\u306e\u6700\u77ed\u7d4c\u8def\u3068\u306a\u308b\u30dd\u30fc\u30c8\u3092\u30eb\u30fc\u30c8\u30dd\u30fc\u30c8<\/strong>\u3068\u3057\u3066\u901a\u4fe1\u3092\u8a31\u53ef\u3057\u307e\u3059\u3002<\/li>\n
      3. \u30d6\u30ed\u30c3\u30af\u30dd\u30fc\u30c8\u306e\u6c7a\u5b9a<\/strong>: \u305d\u306e\u4ed6\u306e\u30dd\u30fc\u30c8\u3067\u3001\u30eb\u30fc\u30d7\u3092\u5f62\u6210\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u7d4c\u8def\u4e0a\u306e\u30dd\u30fc\u30c8\u3092\u30d6\u30ed\u30c3\u30af\u30dd\u30fc\u30c8<\/strong>\u3068\u3057\u3066\u901a\u4fe1\u3092\u906e\u65ad\u3057\u307e\u3059\u3002<\/li>\n<\/ol>\n

        \u3053\u306e\u4ed5\u7d44\u307f\u306b\u3088\u308a\u3001\u7269\u7406\u7684\u306b\u306f\u30b1\u30fc\u30d6\u30eb\u304c\u63a5\u7d9a\u3055\u308c\u3066\u30eb\u30fc\u30d7\u3057\u3066\u3044\u3066\u3082\u3001\u8ad6\u7406\u7684\u306b\u306f\u30eb\u30fc\u30d7\u306e\u306a\u3044\u69cb\u6210\u304c\u4fdd\u305f\u308c\u308b\u306e\u3067\u3059\u3002\u306a\u304a\u3001\u73fe\u5728\u3067\u306fSTP\u306e\u6b20\u70b9\u3092\u6539\u826f\u3057\u3001\u969c\u5bb3\u767a\u751f\u6642\u306e\u7d4c\u8def\u5207\u308a\u66ff\u3048\u3092\u9ad8\u901f\u5316\u3057\u305fRSTP\uff08Rapid STP\uff09<\/strong>\u304c\u4e3b\u6d41\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n

        \u5b66\u7fd2\u306e\u30dd\u30a4\u30f3\u30c8<\/h3>\n

        \u8a66\u9a13\u3067\u306f\u3001\u30b9\u30a4\u30c3\u30c1\u69cb\u6210\u56f3\u3092\u898b\u3066\u300c\u3069\u306e\u30b9\u30a4\u30c3\u30c1\u304c\u30eb\u30fc\u30c8\u30d6\u30ea\u30c3\u30b8\u306b\u306a\u308b\u304b<\/strong>\u300d\u300c\u3069\u306e\u30dd\u30fc\u30c8\u304c\u30d6\u30ed\u30c3\u30af\u3055\u308c\u308b\u304b<\/strong>\u300d\u3092\u5224\u65ad\u3055\u305b\u308b\u554f\u984c\u304c\u983b\u51fa\u3057\u307e\u3059\u3002\u30eb\u30fc\u30c8\u30d6\u30ea\u30c3\u30b8\u306e\u9078\u51fa\u6761\u4ef6\uff08\u2460\u512a\u5148\u5ea6\u304c\u5c0f\u3055\u3044\u65b9\u3001\u2461MAC\u30a2\u30c9\u30ec\u30b9\u304c\u5c0f\u3055\u3044\u65b9\uff09\u3092\u6b63\u78ba\u306b\u899a\u3048\u3001\u5404\u30b9\u30a4\u30c3\u30c1\u304b\u3089\u306e\u30b3\u30b9\u30c8\u8a08\u7b97\u3092\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u3066\u304a\u304f\u3053\u3068\u304c\u653b\u7565\u306e\u9375\u3067\u3059\u3002<\/p>\n

        \n

        4. \u3010VRRP\u3011\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u5197\u9577\u5316\u306e\u4ed5\u7d44\u307f\u2502\u4eee\u60f3IP\u30a2\u30c9\u30ec\u30b9\u306e\u5f79\u5272<\/h2>\n

        \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u306ePC\u304c\u5916\u90e8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u901a\u4fe1\u3059\u308b\u969b\u3001\u51fa\u53e3\u3068\u306a\u308b\u30eb\u30fc\u30bf\u3092\u30c7\u30d5\u30a9\u30eb\u30c8\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4<\/strong>\u3068\u547c\u3073\u307e\u3059\u3002\u3082\u3057\u3001\u3053\u306e\u30eb\u30fc\u30bf\u304c1\u53f0\u3060\u3051\u3067\u6545\u969c\u3057\u3066\u3057\u307e\u3046\u3068\u3001\u5168\u3066\u306ePC\u304c\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306a\u3069\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u304f\u306a\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u3002\u3053\u306e\u5358\u4e00\u969c\u5bb3\u70b9\uff08SPOF\uff09<\/strong>\u306e\u554f\u984c\u3092\u89e3\u6c7a\u3059\u308b\u306e\u304c\u3001VRRP\uff08Virtual Router Redundancy Protocol\uff09<\/strong>\u3067\u3059\u3002<\/p>\n

        \u30c7\u30d5\u30a9\u30eb\u30c8\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u306e\u5358\u4e00\u969c\u5bb3\u70b9\u554f\u984c<\/h3>\n

        \u901a\u5e38\u3001PC\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8a2d\u5b9a\u3067\u306f\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u306eIP\u30a2\u30c9\u30ec\u30b9\u30921\u3064\u3060\u3051\u6307\u5b9a\u3057\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u305d\u306eIP\u30a2\u30c9\u30ec\u30b9\u3092\u6301\u3064\u30eb\u30fc\u30bf\u304c\u505c\u6b62\u3059\u308b\u3068\u3001\u901a\u4fe1\u306f\u5b8c\u5168\u306b\u9014\u7d76\u3048\u3066\u3057\u307e\u3044\u307e\u3059\u3002\u30eb\u30fc\u30bf\u30922\u53f0\u8a2d\u7f6e\u3057\u3066\u3082\u3001PC\u306e\u9001\u308a\u5148\u306f1\u53f0\u306b\u56fa\u5b9a\u3055\u308c\u3066\u3044\u308b\u305f\u3081\u3001\u81ea\u52d5\u7684\u306b\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u6a5f\u306b\u5207\u308a\u66ff\u308f\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n

        VRRP\u306b\u3088\u308b\u30eb\u30fc\u30bf\u306e\u4eee\u60f3\u5316<\/h3>\n

        VRRP\u306f\u3001\u8907\u6570\u306e\u7269\u7406\u30eb\u30fc\u30bf\u3092\u675f\u306d\u3066\u3001\u8ad6\u7406\u7684\u306b1\u53f0\u306e\u4eee\u60f3\u30eb\u30fc\u30bf<\/strong>\u3068\u3057\u3066\u898b\u305b\u308b\u6280\u8853\u3067\u3059\u3002<\/p>\n

          \n
        1. \u4eee\u60f3IP\u30a2\u30c9\u30ec\u30b9\u306e\u8a2d\u5b9a<\/strong>: \u30b0\u30eb\u30fc\u30d7\u5185\u306e\u30eb\u30fc\u30bf\u306f\u3001\u5171\u6709\u306e\u4eee\u60f3IP\u30a2\u30c9\u30ec\u30b9<\/strong>\u3068\u4eee\u60f3MAC\u30a2\u30c9\u30ec\u30b9<\/strong>\u3092\u6301\u3061\u307e\u3059\u3002PC\u306f\u3001\u3053\u306e\u4eee\u60f3IP\u30a2\u30c9\u30ec\u30b9\u3092\u30c7\u30d5\u30a9\u30eb\u30c8\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u3068\u3057\u3066\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/li>\n
        2. \u5f79\u5272\u5206\u62c5<\/strong>: \u8907\u6570\u306e\u30eb\u30fc\u30bf\u306e\u4e2d\u304b\u30891\u53f0\u304c\u30de\u30b9\u30bf\u30eb\u30fc\u30bf<\/strong>\u3068\u306a\u308a\u3001\u4eee\u60f3IP\u30a2\u30c9\u30ec\u30b9\u5b9b\u306e\u901a\u4fe1\u3092\u5b9f\u969b\u306b\u51e6\u7406\u3057\u307e\u3059\u3002\u6b8b\u308a\u306e\u30eb\u30fc\u30bf\u306f\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u30eb\u30fc\u30bf<\/strong>\u3068\u3057\u3066\u5f85\u6a5f\u3057\u307e\u3059\u3002<\/li>\n
        3. \u969c\u5bb3\u767a\u751f\u3068\u5207\u308a\u66ff\u3048<\/strong>: \u30de\u30b9\u30bf\u30eb\u30fc\u30bf\u306f\u3001\u5b9a\u671f\u7684\u306b\u751f\u5b58\u901a\u77e5\uff08\u30a2\u30c9\u30d0\u30bf\u30a4\u30ba\u30e1\u30f3\u30c8\uff09\u3092\u9001\u4fe1\u3057\u307e\u3059\u3002\u3053\u306e\u901a\u77e5\u304c\u9014\u7d76\u3048\u308b\u3068\u3001\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u30eb\u30fc\u30bf\u304c\u5373\u5ea7\u306b\u65b0\u3057\u3044\u30de\u30b9\u30bf\u30eb\u30fc\u30bf\u306b\u6607\u683c\u3057\u3001\u4eee\u60f3IP\u30a2\u30c9\u30ec\u30b9\u3092\u5f15\u304d\u7d99\u3044\u3067\u901a\u4fe1\u3092\u7d99\u7d9a\u3057\u307e\u3059\u3002<\/li>\n<\/ol>\n

          \u3053\u306e\u4ed5\u7d44\u307f\u306b\u3088\u308a\u3001PC\u5074\u306f\u4f55\u3082\u8a2d\u5b9a\u3092\u5909\u66f4\u3059\u308b\u3053\u3068\u306a\u304f\u3001\u30eb\u30fc\u30bf\u306e\u969c\u5bb3\u6642\u306b\u3082\u901a\u4fe1\u3092\u7d9a\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n

          \u5b66\u7fd2\u306e\u30dd\u30a4\u30f3\u30c8<\/h3>\n

          VRRP\u3092\u7406\u89e3\u3059\u308b\u4e0a\u3067\u91cd\u8981\u306a\u306e\u306f\u3001\u300c\u7269\u7406IP\u30a2\u30c9\u30ec\u30b9<\/strong>\u300d\u3068\u300c\u4eee\u60f3IP\u30a2\u30c9\u30ec\u30b9<\/strong>\u300d\u3092\u660e\u78ba\u306b\u533a\u5225\u3059\u308b\u3053\u3068\u3067\u3059\u3002PC\u304c\u901a\u4fe1\u76f8\u624b\u306b\u3057\u3066\u3044\u308b\u306e\u306f\u3001\u3042\u304f\u307e\u3067\u4eee\u60f3\u30eb\u30fc\u30bf\u306eIP\u30a2\u30c9\u30ec\u30b9\u3067\u3059\u3002\u5348\u5f8c\u554f\u984c\u3067\u306f\u3001\u69cb\u6210\u56f3\u3092\u898b\u3066\u300c\u5e73\u5e38\u6642\u306b\u901a\u4fe1\u3092\u51e6\u7406\u3057\u3066\u3044\u308b\u306e\u306f\u3069\u306e\u30eb\u30fc\u30bf\u304b\u300d\u300c\u969c\u5bb3\u767a\u751f\u6642\u306b\u3001\u3069\u306e\u30eb\u30fc\u30bf\u304c\u51e6\u7406\u3092\u5f15\u304d\u7d99\u3050\u304b\u300d\u3068\u3044\u3063\u305f\u3001\u901a\u4fe1\u306e\u6d41\u308c\u3092\u5177\u4f53\u7684\u306b\u8ffd\u3046\u80fd\u529b\u304c\u6c42\u3081\u3089\u308c\u307e\u3059\u3002<\/p>\n

          \n

          \u307e\u3068\u3081<\/h3>\n

          \u672c\u8a18\u4e8b\u3067\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u300c\u63a5\u7d9a\u6027\u300d\u3068\u300c\u53ef\u7528\u6027\u300d\u3092\u652f\u3048\u308b\u4e2d\u6838\u6280\u8853\u3068\u3057\u3066\u3001BGP\u3001VLAN\u3001STP\/RSTP\u3001\u305d\u3057\u3066VRRP\u3092\u89e3\u8aac\u3057\u307e\u3057\u305f\u3002<\/p>\n

          \u3053\u308c\u3089\u306e\u6280\u8853\u306f\u3001\u305d\u308c\u305e\u308cL2\u3001L3\u3068\u3044\u3046\u7570\u306a\u308b\u968e\u5c64\u3067\u52d5\u4f5c\u3057\u306a\u304c\u3089\u3001\u4e92\u3044\u306b\u9023\u643a\u3057\u3066\u300c\u610f\u56f3\u901a\u308a\u306b\u7e4b\u304c\u308a\u3001\u4e88\u671f\u305b\u306c\u30eb\u30fc\u30d7\u3092\u8d77\u3053\u3055\u305a\u3001\u969c\u5bb3\u767a\u751f\u6642\u306b\u3082\u6b62\u307e\u3089\u306a\u3044<\/strong>\u300d\u3068\u3044\u3046\u3001\u5805\u7262\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u5f62\u4f5c\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n

            \n
          • VLAN<\/strong>\u3068STP<\/strong>\u304c\u30b9\u30a4\u30c3\u30c1\u5185\u90e8\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u6574\u7406\u30fb\u4fdd\u8b77\u3057 (L2)\u3001<\/li>\n
          • BGP<\/strong>\u3068VRRP<\/strong>\u304c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u9593\u306e\u63a5\u7d9a\u6027\u3068\u51fa\u53e3\u306e\u4fe1\u983c\u6027\u3092\u62c5\u4fdd\u3059\u308b (L3)\u3002<\/li>\n<\/ul>\n

            \u5348\u5f8c\u554f\u984c\u306e\u69cb\u6210\u56f3\u3067\u306f\u3001\u5fc5\u305a\u3068\u8a00\u3063\u3066\u3044\u3044\u307b\u3069\u3053\u308c\u3089\u306e\u6280\u8853\u304c\u7d44\u307f\u5408\u308f\u3055\u3063\u3066\u767b\u5834\u3057\u307e\u3059\u3002\u500b\u3005\u306e\u77e5\u8b58\u3092\u78ba\u5b9f\u306a\u3082\u306e\u306b\u3057\u305f\u4e0a\u3067\u3001\u305c\u3072\u5b9f\u969b\u306e\u8a66\u9a13\u554f\u984c\u306b\u6311\u6226\u3057\u3001\u6280\u8853\u9593\u306e\u9023\u643a\u3092\u8aad\u307f\u89e3\u304f\u30c8\u30ec\u30fc\u30cb\u30f3\u30b0\u3092\u7a4d\u3093\u3067\u304f\u3060\u3055\u3044\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

            \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u30da\u30b7\u30e3\u30ea\u30b9\u30c8\u5348\u5f8c\u5bfe\u7b56\u30b7\u30ea\u30fc\u30ba\u306e\u7b2c2\u5f3e\u3078\u3088\u3046\u3053\u305d\u3002\u524d\u56de\u306e\u8a18\u4e8b\u3067\u306f\u3001DNS\u3084IPsec\u3068\u3044\u3063\u305f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u6839\u5e79\u3092\u306a\u3059\u300c\u30c8\u30c3\u30d75\u6280\u8853\u300d\u3092\u89e3\u8aac\u3057\u307e\u3057\u305f\u3002\u4eca\u56de\u306f\u305d\u3053\u304b\u3089\u4e00\u6b69\u9032\u307f\u3001\u3088\u308a\u5177\u4f53\u7684\u306a\u30cd\u30c3 … <\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","columnck":"","stmeta_robots":"index, follow","st_titlewords":"","st_title_extra":"","st_keywords":"","st_description":"","st_display_ad_mark":"","st_display_ad_mark_hide":"","textcopyck":"","st_copyright":"","st_copyurl":"","eyecatch_set":"","st_youtube_url":"","st_youtube_eyecatch":"","headerwidget_set":"","updatewidget_set":"","kanrenwidget_set":"","ikkatuwidget_set":"","koukoku_set":"","auto_adsense_koukoku_set":"","st_redirect":"","st_redirect_url_as_canonical":"","st_redirect_pvm_do_not_track":"","post_data_updatewidget_set":"","st_post_header_under_bg":"","st_twitter_tag":"","affinger_note":"","rankdisplayck":"","st_head_code":"","st_footer_code":"","st_post_header_under_code":"","_st_toc_override":false,"_st_toc_settings":[]},"categories":[3],"tags":[5],"class_list":["post-5917","post","type-post","status-publish","format-standard","hentry","category-ipa","tag-5"],"_links":{"self":[{"href":"https:\/\/sky-peace.net\/certified\/wp-json\/wp\/v2\/posts\/5917","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sky-peace.net\/certified\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sky-peace.net\/certified\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sky-peace.net\/certified\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/sky-peace.net\/certified\/wp-json\/wp\/v2\/comments?post=5917"}],"version-history":[{"count":0,"href":"https:\/\/sky-peace.net\/certified\/wp-json\/wp\/v2\/posts\/5917\/revisions"}],"wp:attachment":[{"href":"https:\/\/sky-peace.net\/certified\/wp-json\/wp\/v2\/media?parent=5917"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sky-peace.net\/certified\/wp-json\/wp\/v2\/categories?post=5917"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sky-peace.net\/certified\/wp-json\/wp\/v2\/tags?post=5917"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}