{"id":475905,"date":"2023-08-09T07:24:43","date_gmt":"2023-08-09T07:24:43","guid":{"rendered":""},"modified":"2023-09-05T11:11:33","modified_gmt":"2023-09-05T11:11:33","slug":"area-border-router","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/jp\/wiki\/area-border-router\/","title":{"rendered":"\u30a8\u30ea\u30a2\u5883\u754c\u30eb\u30fc\u30bf"},"content":{"rendered":"<p>\u30a8\u30ea\u30a2\u5883\u754c\u30eb\u30fc\u30bf (ABR) \u306f\u3001\u7279\u306b\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306a\u3069\u306e\u5927\u898f\u6a21\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u306b\u304a\u3044\u3066\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u91cd\u8981\u306a\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3067\u3059\u3002\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u306e\u7570\u306a\u308b\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0 \u30c9\u30e1\u30a4\u30f3\u307e\u305f\u306f\u30a8\u30ea\u30a2\u9593\u306e\u91cd\u8981\u306a\u30ea\u30f3\u30af\u3068\u3057\u3066\u6a5f\u80fd\u3057\u307e\u3059\u3002ABR \u306f\u3001\u3053\u308c\u3089\u306e\u30a8\u30ea\u30a2\u9593\u306e\u30c7\u30fc\u30bf \u30d1\u30b1\u30c3\u30c8\u306e\u7ba1\u7406\u3068\u65b9\u5411\u4ed8\u3051\u306b\u304a\u3044\u3066\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u3001\u52b9\u7387\u7684\u306a\u901a\u4fe1\u3068\u30b7\u30fc\u30e0\u30ec\u30b9\u306a\u30c7\u30fc\u30bf\u8ee2\u9001\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u30a8\u30ea\u30a2\u5883\u754c\u30eb\u30fc\u30bf\u306e\u6b74\u53f2\u3001\u6a5f\u80fd\u3001\u7a2e\u985e\u3001\u304a\u3088\u3073\u5c06\u6765\u306e\u5c55\u671b\u306b\u3064\u3044\u3066\u3001\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u306e\u95a2\u9023\u6027\u3092\u4e2d\u5fc3\u306b\u8a73\u3057\u304f\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n<h2>\u30a8\u30ea\u30a2\u5883\u754c\u30eb\u30fc\u30bf\u306e\u8d77\u6e90\u3068\u305d\u306e\u6700\u521d\u306e\u8a00\u53ca\u306e\u6b74\u53f2<\/h2>\n<p>\u30a8\u30ea\u30a2\u5883\u754c\u30eb\u30fc\u30bf\u306e\u6982\u5ff5\u306f\u30011960 \u5e74\u4ee3\u304b\u3089 1970 \u5e74\u4ee3\u306b\u304b\u3051\u3066\u306e\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf \u30cd\u30c3\u30c8\u30ef\u30fc\u30ad\u30f3\u30b0\u306e\u51fa\u73fe\u3068\u3068\u3082\u306b\u751f\u307e\u308c\u307e\u3057\u305f\u3002\u521d\u671f\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8a2d\u8a08\u8005\u306f\u3001\u30b9\u30b1\u30fc\u30e9\u30d3\u30ea\u30c6\u30a3\u3068\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5411\u4e0a\u3055\u305b\u308b\u305f\u3081\u306b\u3001\u5927\u898f\u6a21\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u5c0f\u3055\u304f\u7ba1\u7406\u3057\u3084\u3059\u3044\u9818\u57df\u306b\u5206\u5272\u3059\u308b\u5fc5\u8981\u6027\u3092\u8a8d\u8b58\u3057\u3066\u3044\u307e\u3057\u305f\u3002\u3053\u306e\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3 \u30a2\u30d7\u30ed\u30fc\u30c1\u306b\u3088\u308a\u3001\u5185\u90e8\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4 \u30d7\u30ed\u30c8\u30b3\u30eb (IGP) \u3084\u5916\u90e8\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4 \u30d7\u30ed\u30c8\u30b3\u30eb (EGP) \u306a\u3069\u306e\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306e\u521d\u671f\u306e\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0 \u30d7\u30ed\u30c8\u30b3\u30eb\u304c\u958b\u767a\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n<p>\u30a8\u30ea\u30a2\u5883\u754c\u30eb\u30fc\u30bf\u304c\u521d\u3081\u3066\u8a00\u53ca\u3055\u308c\u305f\u306e\u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u6280\u8853\u7279\u5225\u8abf\u67fb\u59d4\u54e1\u4f1a (IETF) \u304c Intermediate System to Intermediate System (IS-IS) \u30eb\u30fc\u30c6\u30a3\u30f3\u30b0 \u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u6a19\u6e96\u5316\u3057\u305f 1980 \u5e74\u4ee3\u521d\u982d\u306b\u9061\u308a\u307e\u3059\u3002\u3053\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u306f\u3001\u300c\u30a8\u30ea\u30a2\u300d\u3068\u300c\u30ec\u30d9\u30eb 1\u300d\u304a\u3088\u3073\u300c\u30ec\u30d9\u30eb 2\u300d\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0 \u30c9\u30e1\u30a4\u30f3\u306e\u6982\u5ff5\u3092\u5c0e\u5165\u3057\u3001\u73fe\u4ee3\u306e ABR \u6a5f\u80fd\u306e\u57fa\u790e\u3092\u7bc9\u304d\u307e\u3057\u305f\u3002<\/p>\n<h2>\u30a8\u30ea\u30a2\u5883\u754c\u30eb\u30fc\u30bf\u306e\u8a73\u7d30\u60c5\u5831: \u30c8\u30d4\u30c3\u30af\u306e\u62e1\u5f35<\/h2>\n<h3>\u30a8\u30ea\u30a2\u5883\u754c\u30eb\u30fc\u30bf\u306e\u6a5f\u80fd<\/h3>\n<p>\u30a8\u30ea\u30a2\u5883\u754c\u30eb\u30fc\u30bf\u306e\u4e3b\u306a\u6a5f\u80fd\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u306e\u7570\u306a\u308b\u30a8\u30ea\u30a2\u3092\u76f8\u4e92\u63a5\u7d9a\u3057\u3001\u305d\u308c\u3089\u306e\u9593\u306e\u30c7\u30fc\u30bf \u30d5\u30ed\u30fc\u3092\u7ba1\u7406\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u306e\u5404\u30a8\u30ea\u30a2\u306f\u72ec\u81ea\u306e\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0 \u30c6\u30fc\u30d6\u30eb\u3092\u4fdd\u6301\u3057\u3001ABR \u306f\u3053\u308c\u3089\u306e\u30a8\u30ea\u30a2\u9593\u306e\u52b9\u7387\u7684\u306a\u30d1\u30b1\u30c3\u30c8\u8ee2\u9001\u3092\u4fdd\u8a3c\u3059\u308b\u4ef2\u4ecb\u8005\u3068\u3057\u3066\u6a5f\u80fd\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u63a5\u7d9a\u3055\u308c\u305f\u5404\u30a8\u30ea\u30a2\u306e\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u60c5\u5831\u3092\u4fdd\u6301\u3057\u3001\u8fd1\u96a3\u306e\u30eb\u30fc\u30bf\u3068\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u66f4\u65b0\u3092\u4ea4\u63db\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u884c\u308f\u308c\u307e\u3059\u3002<\/p>\n<p>ABR \u306f\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0 \u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u4f7f\u7528\u3057\u3066\u3001\u30a8\u30ea\u30a2\u9593\u3092\u30c7\u30fc\u30bf \u30d1\u30b1\u30c3\u30c8\u304c\u901a\u904e\u3059\u308b\u6700\u9069\u306a\u30d1\u30b9\u3092\u8a08\u7b97\u3057\u307e\u3059\u3002\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u30c8\u30dd\u30ed\u30b8\u306e\u5b8c\u5168\u306a\u30d3\u30e5\u30fc\u3092\u7dad\u6301\u3057\u3001\u3053\u306e\u60c5\u5831\u3092\u4f7f\u7528\u3057\u3066\u60c5\u5831\u306b\u57fa\u3065\u3044\u305f\u8ee2\u9001\u6c7a\u5b9a\u3092\u884c\u3044\u307e\u3059\u3002\u3055\u3089\u306b\u3001ABR \u306f\u3001\u500b\u3005\u306e\u30a8\u30ea\u30a2\u5185\u306e\u6f5c\u5728\u7684\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u969c\u5bb3\u3092\u5206\u96e2\u3057\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5168\u4f53\u306b\u5f71\u97ff\u304c\u53ca\u3070\u306a\u3044\u3088\u3046\u306b\u3067\u304d\u308b\u305f\u3081\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u5b89\u5b9a\u6027\u3092\u7dad\u6301\u3059\u308b\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002<\/p>\n<h2>\u30a8\u30ea\u30a2\u5883\u754c\u30eb\u30fc\u30bf\u306e\u5185\u90e8\u69cb\u9020\uff1a\u4ed5\u7d44\u307f<\/h2>\n<p>\u30a8\u30ea\u30a2\u5883\u754c\u30eb\u30fc\u30bf\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u306e 2 \u3064\u4ee5\u4e0a\u306e\u30a8\u30ea\u30a2\u306e\u5883\u754c\u3067\u52d5\u4f5c\u3057\u307e\u3059\u3002\u901a\u5e38\u3001\u8907\u6570\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u304c\u88c5\u5099\u3055\u308c\u3066\u304a\u308a\u3001\u305d\u308c\u305e\u308c\u304c\u7570\u306a\u308b\u30a8\u30ea\u30a2\u306b\u63a5\u7d9a\u3055\u308c\u3066\u3044\u307e\u3059\u3002ABR \u306e\u5185\u90e8\u69cb\u9020\u306b\u306f\u3001\u6b21\u306e\u4e3b\u8981\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u304c\u542b\u307e\u308c\u307e\u3059\u3002<\/p>\n<ol>\n<li>\n<p><strong>\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30c6\u30fc\u30d6\u30eb<\/strong>: \u30eb\u30fc\u30c6\u30a3\u30f3\u30b0 \u30c6\u30fc\u30d6\u30eb\u306b\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u30c8\u30dd\u30ed\u30b8\u3068\u3001\u3055\u307e\u3056\u307e\u306a\u30a8\u30ea\u30a2\u306e\u5b9b\u5148\u306b\u5230\u9054\u3059\u308b\u305f\u3081\u306e\u6700\u9069\u306a\u30d1\u30b9\u306b\u95a2\u3059\u308b\u60c5\u5831\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002ABR \u306f\u3001\u53d7\u4fe1\u3057\u305f\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u66f4\u65b0\u306b\u57fa\u3065\u3044\u3066\u3053\u306e\u30c6\u30fc\u30d6\u30eb\u3092\u52d5\u7684\u306b\u66f4\u65b0\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0<\/strong>ABR \u306f\u3001Shortest Path First (SPF) \u3084 Dijkstra \u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306a\u3069\u306e\u3055\u307e\u3056\u307e\u306a\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0 \u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u4f7f\u7528\u3057\u3066\u3001\u30a8\u30ea\u30a2\u9593\u306e\u30c7\u30fc\u30bf \u30d1\u30b1\u30c3\u30c8\u306e\u6700\u9069\u30d1\u30b9\u3092\u8a08\u7b97\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30a8\u30ea\u30a2\u30ea\u30f3\u30af\u30b9\u30c6\u30fc\u30c8\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9<\/strong>\u5404 ABR \u306f\u3001\u63a5\u7d9a\u3055\u308c\u305f\u30a8\u30ea\u30a2\u306e\u30c8\u30dd\u30ed\u30b8\u3068\u30b9\u30c6\u30fc\u30bf\u30b9\u306b\u95a2\u3059\u308b\u8a73\u7d30\u60c5\u5831\u3092\u4fdd\u5b58\u3059\u308b\u30a8\u30ea\u30a2 \u30ea\u30f3\u30af \u30b9\u30c6\u30fc\u30c8 \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9 (LSDB) \u3092\u7dad\u6301\u3057\u307e\u3059\u3002LSDB \u306f SPF \u8a08\u7b97\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9<\/strong>ABR \u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306f\u3055\u307e\u3056\u307e\u306a\u30a8\u30ea\u30a2\u306b\u63a5\u7d9a\u3057\u3001\u30a8\u30ea\u30a2\u9593\u3067\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u60c5\u5831\u3068\u30c7\u30fc\u30bf \u30d1\u30b1\u30c3\u30c8\u3092\u4ea4\u63db\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>\u30a8\u30ea\u30a2\u5883\u754c\u30eb\u30fc\u30bf\u306e\u4e3b\u306a\u6a5f\u80fd\u306e\u5206\u6790<\/h2>\n<p>\u30a8\u30ea\u30a2\u5883\u754c\u30eb\u30fc\u30bf\u30fc\u306f\u3001\u5927\u898f\u6a21\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u4e0d\u53ef\u6b20\u306a\u3044\u304f\u3064\u304b\u306e\u91cd\u8981\u306a\u6a5f\u80fd\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/p>\n<ol>\n<li>\n<p><strong>\u968e\u5c64\u578b\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0<\/strong>ABR \u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u30a8\u30ea\u30a2\u306b\u5206\u5272\u3059\u308b\u3053\u3068\u3067\u968e\u5c64\u578b\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u5bb9\u6613\u306b\u3057\u307e\u3059\u3002\u3053\u306e\u968e\u5c64\u69cb\u9020\u306b\u3088\u308a\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u30b9\u30b1\u30fc\u30e9\u30d3\u30ea\u30c6\u30a3\u304c\u5411\u4e0a\u3057\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0 \u30c6\u30fc\u30d6\u30eb\u306e\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u306e\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u304c\u524a\u6e1b\u3055\u308c\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u52b9\u7387\u7684\u306a\u30c7\u30fc\u30bf\u8ee2\u9001<\/strong>ABR \u306f\u30a8\u30ea\u30a2\u9593\u3067\u30c7\u30fc\u30bf \u30d1\u30b1\u30c3\u30c8\u3092\u52b9\u7387\u7684\u306b\u9001\u4fe1\u3059\u308b\u3053\u3068\u3067\u3001\u30c7\u30fc\u30bf\u8ee2\u9001\u3092\u6700\u9069\u5316\u3057\u3001\u9045\u5ef6\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u8aa4\u3063\u305f\u9694\u96e2<\/strong>ABR \u306f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u969c\u5bb3\u3092\u7279\u5b9a\u306e\u30a8\u30ea\u30a2\u5185\u306b\u5c01\u3058\u8fbc\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u305f\u3081\u3001\u969c\u5bb3\u306e\u62e1\u5927\u3092\u9632\u304e\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u5b89\u5b9a\u6027\u3092\u9ad8\u3081\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0<\/strong>ABR \u306f\u30c8\u30e9\u30d5\u30a3\u30c3\u30af \u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0 \u30dd\u30ea\u30b7\u30fc\u3092\u5b9f\u88c5\u3057\u3066\u3001\u30c7\u30fc\u30bf \u30d5\u30ed\u30fc\u3092\u5236\u5fa1\u3057\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u6700\u9069\u5316\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>\u30a8\u30ea\u30a2\u5883\u754c\u30eb\u30fc\u30bf\u306e\u7a2e\u985e<\/h2>\n<p>\u30a8\u30ea\u30a2\u5883\u754c\u30eb\u30fc\u30bf\u306e\u7a2e\u985e\u306f\u3001\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0 \u30d7\u30ed\u30c8\u30b3\u30eb\u3068\u63a5\u7d9a\u306e\u7bc4\u56f2\u306b\u57fa\u3065\u3044\u3066\u5206\u985e\u3067\u304d\u307e\u3059\u3002\u4e3b\u306a\u7a2e\u985e\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<h3>\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30d7\u30ed\u30c8\u30b3\u30eb\u306b\u57fa\u3065\u304f:<\/h3>\n<ul>\n<li>OSPF ABR: Open Shortest Path First (OSPF) \u30eb\u30fc\u30c6\u30a3\u30f3\u30b0 \u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u30a8\u30ea\u30a2\u5883\u754c\u30eb\u30fc\u30bf\u3002<\/li>\n<li>IS-IS ABR: Intermediate System to Intermediate System (IS-IS) \u30eb\u30fc\u30c6\u30a3\u30f3\u30b0 \u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u4f7f\u7528\u3057\u3066\u52d5\u4f5c\u3059\u308b\u30a8\u30ea\u30a2\u5883\u754c\u30eb\u30fc\u30bf\u3002<\/li>\n<\/ul>\n<h3>\u63a5\u7d9a\u7bc4\u56f2\u306b\u57fa\u3065\u304f:<\/h3>\n<ul>\n<li>\u30a8\u30ea\u30a2\u9593 ABR: \u540c\u3058\u81ea\u5f8b\u30b7\u30b9\u30c6\u30e0 (AS) \u5185\u306e\u30a8\u30ea\u30a2\u3092\u63a5\u7d9a\u3057\u307e\u3059\u3002<\/li>\n<li>Inter-AS ABR: \u7570\u306a\u308b\u81ea\u5f8b\u30b7\u30b9\u30c6\u30e0\u3092\u63a5\u7d9a\u3057\u3001\u7570\u306a\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u9593\u306e\u901a\u4fe1\u3092\u5bb9\u6613\u306b\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<p>\u8868: \u3055\u307e\u3056\u307e\u306a ABR \u30bf\u30a4\u30d7\u306e\u6bd4\u8f03<\/p>\n<table>\n<thead>\n<tr>\n<th>ABR\u30bf\u30a4\u30d7<\/th>\n<th>\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30d7\u30ed\u30c8\u30b3\u30eb<\/th>\n<th>\u63a5\u7d9a\u7bc4\u56f2<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>OSPF \u306e ABR<\/td>\n<td>OSPF<\/td>\n<td>\u30a8\u30ea\u30a2\u9593<\/td>\n<\/tr>\n<tr>\n<td>IS-IS ABR<\/td>\n<td>IS-IS<\/td>\n<td>\u30a8\u30ea\u30a2\u9593<\/td>\n<\/tr>\n<tr>\n<td>AS \u9593 ABR<\/td>\n<td>OSPF\/IS-IS<\/td>\n<td>AS\u9593<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u30a8\u30ea\u30a2\u5883\u754c\u30eb\u30fc\u30bf\u306e\u4f7f\u7528\u65b9\u6cd5\u3001\u4f7f\u7528\u306b\u4f34\u3046\u554f\u984c\u3068\u305d\u306e\u89e3\u6c7a\u7b56<\/h2>\n<p>\u30a8\u30ea\u30a2\u5883\u754c\u30eb\u30fc\u30bf\u30fc\u306f\u3001\u7279\u306b\u5927\u898f\u6a21\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3084\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306a\u3069\u3001\u3055\u307e\u3056\u307e\u306a\u30b7\u30ca\u30ea\u30aa\u3067\u5e83\u304f\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u4e00\u822c\u7684\u306a\u4f7f\u7528\u4f8b\u306b\u306f\u6b21\u306e\u3088\u3046\u306a\u3082\u306e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ol>\n<li>\n<p><strong>\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8 \u30b5\u30fc\u30d3\u30b9 \u30d7\u30ed\u30d0\u30a4\u30c0\u30fc (ISP)<\/strong>ISP \u306f ABR \u3092\u4f7f\u7528\u3057\u3066\u3001\u3055\u307e\u3056\u307e\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u9818\u57df\u3092\u76f8\u4e92\u63a5\u7d9a\u3057\u3001\u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u5168\u4f53\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u7ba1\u7406\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30a8\u30f3\u30bf\u30fc\u30d7\u30e9\u30a4\u30ba\u30cd\u30c3\u30c8\u30ef\u30fc\u30af<\/strong>\u8907\u96d1\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3092\u6301\u3064\u5927\u898f\u6a21\u306a\u7d44\u7e54\u3067\u306f\u3001ABR \u3092\u4f7f\u7528\u3057\u3066\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5411\u4e0a\u3055\u305b\u3001\u5185\u90e8\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u7ba1\u7406\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30d7\u30ed\u30ad\u30b7\u30b5\u30fc\u30d0\u30fc\u30cd\u30c3\u30c8\u30ef\u30fc\u30af<\/strong>: OneProxy \u306a\u3069\u306e\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc \u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u306f\u3001ABR \u3092\u5229\u7528\u3057\u3066\u30c7\u30fc\u30bf \u30d5\u30ed\u30fc\u3092\u6700\u9069\u5316\u3057\u3001\u3055\u307e\u3056\u307e\u306a\u9818\u57df\u304b\u3089\u306e\u8981\u6c42\u3092\u52b9\u7387\u7684\u306b\u51e6\u7406\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n<h3>\u554f\u984c\u3068\u89e3\u6c7a\u7b56:<\/h3>\n<ol>\n<li>\n<p><strong>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u6df7\u96d1<\/strong>: \u30a8\u30ea\u30a2\u9593\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u91cf\u304c\u591a\u3044\u3068\u3001\u8f3b\u8f33\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u89e3\u6c7a\u7b56\u3068\u3057\u3066\u306f\u3001\u30c8\u30e9\u30d5\u30a3\u30c3\u30af \u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u6280\u8853\u3068 QoS \u306e\u5b9f\u88c5\u306a\u3069\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u4e0d\u5b89\u5b9a\u6027<\/strong>: \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304c\u983b\u7e41\u306b\u5909\u66f4\u3055\u308c\u308b\u3068\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u304c\u4e0d\u5b89\u5b9a\u306b\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u614e\u91cd\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8a2d\u8a08\u3068\u30eb\u30fc\u30c8\u96c6\u7d04\u306b\u3088\u308a\u3001\u3053\u306e\u554f\u984c\u3092\u8efd\u6e1b\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4e0a\u306e\u61f8\u5ff5<\/strong>: \u7570\u306a\u308b\u9818\u57df\u3092\u76f8\u4e92\u63a5\u7d9a\u3059\u308b\u3068\u3001\u653b\u6483\u5bfe\u8c61\u9818\u57df\u304c\u62e1\u5927\u3057\u307e\u3059\u3002\u5805\u7262\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u3068\u30a2\u30af\u30bb\u30b9\u5236\u5fa1\u3092\u5b9f\u88c5\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>\u4e3b\u306a\u7279\u5fb4\u3068\u985e\u4f3c\u7528\u8a9e\u3068\u306e\u6bd4\u8f03<\/h2>\n<p>\u30a8\u30ea\u30a2\u5883\u754c\u30eb\u30fc\u30bf\u30fc\u306f\u4ed6\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30c7\u30d0\u30a4\u30b9\u3068\u3044\u304f\u3064\u304b\u306e\u985e\u4f3c\u70b9\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u4ed6\u306e\u30c7\u30d0\u30a4\u30b9\u3068\u306f\u4e00\u7dda\u3092\u753b\u3059\u72ec\u81ea\u306e\u7279\u6027\u3092\u5099\u3048\u3066\u3044\u307e\u3059\u3002<\/p>\n<ul>\n<li>\n<p><strong>\u30eb\u30fc\u30bf\u30fc\u3068ABR<\/strong>\u6a19\u6e96\u7684\u306a\u30eb\u30fc\u30bf\u306f\u3088\u308a\u4f4e\u3044\u30ec\u30d9\u30eb\u3067\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u63a5\u7d9a\u3057\u307e\u3059\u304c\u3001ABR \u306f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u306e\u9818\u57df\u3092\u76f8\u4e92\u63a5\u7d9a\u3059\u308b\u3053\u3068\u306b\u91cd\u70b9\u3092\u7f6e\u3044\u3066\u3044\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>ABR \u5bfe ASBR<\/strong>\u81ea\u5f8b\u30b7\u30b9\u30c6\u30e0\u5883\u754c\u30eb\u30fc\u30bf (ASBR) \u306f\u7570\u306a\u308b\u81ea\u5f8b\u30b7\u30b9\u30c6\u30e0\u3092\u63a5\u7d9a\u3057\u3001ABR \u306f\u540c\u3058 AS \u5185\u306e\u30a8\u30ea\u30a2\u306e\u63a5\u7d9a\u306b\u91cd\u70b9\u3092\u7f6e\u3044\u3066\u3044\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u8868: ABR \u3068 ASBR<\/p>\n<table>\n<thead>\n<tr>\n<th>\u7279\u6027<\/th>\n<th>ABR<\/th>\n<th>\u30a2\u30b9\u30d6\u30ec<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u63a5\u7d9a\u6027<\/td>\n<td>\u540c\u3058AS\u5185<\/td>\n<td>\u7570\u306a\u308bAS\u9593<\/td>\n<\/tr>\n<tr>\n<td>\u76ee\u7684<\/td>\n<td>\u30a8\u30ea\u30a2\u76f8\u4e92\u63a5\u7d9a<\/td>\n<td>\u81ea\u5f8b\u30b7\u30b9\u30c6\u30e0\u306e\u76f8\u4e92\u63a5\u7d9a<\/td>\n<\/tr>\n<tr>\n<td>\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30d7\u30ed\u30c8\u30b3\u30eb<\/td>\n<td>OSPF\u3001IS-IS<\/td>\n<td>BGP\u3001OSPF\u3001IS-IS<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u30a8\u30ea\u30a2\u5883\u754c\u30eb\u30fc\u30bf\u306b\u95a2\u3059\u308b\u4eca\u5f8c\u306e\u5c55\u671b\u3068\u6280\u8853<\/h2>\n<p>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304c\u9032\u5316\u3057\u3001\u3088\u308a\u9ad8\u3044\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u62e1\u5f35\u6027\u304c\u6c42\u3081\u3089\u308c\u308b\u3088\u3046\u306b\u306a\u308b\u3068\u3001\u30a8\u30ea\u30a2\u5883\u754c\u30eb\u30fc\u30bf\u30fc\u3082\u9032\u5316\u3057\u307e\u3059\u3002\u4eca\u5f8c\u306e\u91cd\u8981\u306a\u5c55\u671b\u3068\u30c6\u30af\u30ce\u30ed\u30b8\u30fc\u306b\u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u3082\u306e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ol>\n<li>\n<p><strong>\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u5b9a\u7fa9\u30cd\u30c3\u30c8\u30ef\u30fc\u30ad\u30f3\u30b0 (SDN)<\/strong>SDN \u306b\u3088\u308a\u3001\u3088\u308a\u67d4\u8edf\u3067\u30d7\u30ed\u30b0\u30e9\u30e0\u53ef\u80fd\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u304c\u5b9f\u73fe\u3057\u3001ABR \u306e\u7ba1\u7406\u3068\u81ea\u52d5\u5316\u304c\u6539\u5584\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>IPv6\u306e\u5c0e\u5165<\/strong>IPv6 \u3078\u306e\u79fb\u884c\u306f ABR \u306e\u8a2d\u8a08\u3068\u5c55\u958b\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u3001IPv4 \u3068 IPv6 \u306e\u4e21\u65b9\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u9593\u3067\u30b7\u30fc\u30e0\u30ec\u30b9\u306a\u901a\u4fe1\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u306e\u5f37\u5316<\/strong>\u30c8\u30e9\u30d5\u30a3\u30c3\u30af \u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u6280\u8853\u306e\u9032\u6b69\u306b\u3088\u308a\u3001ABR \u306f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u3088\u308a\u9069\u5207\u306b\u7ba1\u7406\u3057\u3001\u30c7\u30fc\u30bf \u30d5\u30ed\u30fc\u3092\u6700\u9069\u5316\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>\u30d7\u30ed\u30ad\u30b7\u30b5\u30fc\u30d0\u30fc\u306e\u4f7f\u7528\u65b9\u6cd5\u3084\u30a8\u30ea\u30a2\u5883\u754c\u30eb\u30fc\u30bf\u30fc\u3068\u306e\u95a2\u9023\u4ed8\u3051\u65b9\u6cd5<\/h2>\n<p>\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u3068\u30a8\u30ea\u30a2\u5883\u754c\u30eb\u30fc\u30bf\u30fc\u3092\u52b9\u679c\u7684\u306b\u7d44\u307f\u5408\u308f\u305b\u308b\u3068\u3001\u30d7\u30ed\u30ad\u30b7 \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u5f37\u5316\u3067\u304d\u307e\u3059\u3002ABR \u3092\u6226\u7565\u7684\u306b\u5c0e\u5165\u3059\u308b\u3053\u3068\u3067\u3001OneProxy \u306a\u3069\u306e\u30d7\u30ed\u30ad\u30b7 \u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u306f\u6b21\u306e\u30e1\u30ea\u30c3\u30c8\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n<ol>\n<li>\n<p><strong>\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b7\u30f3\u30b0<\/strong>ABR \u306f\u3001\u7740\u4fe1\u30d7\u30ed\u30ad\u30b7\u8981\u6c42\u3092\u8907\u6570\u306e\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306b\u5206\u6563\u3057\u3001\u8ca0\u8377\u306e\u30d0\u30e9\u30f3\u30b9\u3092\u78ba\u4fdd\u3057\u3066\u8f3b\u8f33\u3092\u56de\u907f\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u5f85\u3061\u6642\u9593\u306e\u77ed\u7e2e<\/strong>: \u7570\u306a\u308b\u30a8\u30ea\u30a2\u9593\u306e\u30d7\u30ed\u30ad\u30b7\u8981\u6c42\u306e\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u6700\u9069\u5316\u3059\u308b\u3053\u3068\u3067\u3001ABR \u306f\u9045\u5ef6\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u3001\u5168\u4f53\u7684\u306a\u30e6\u30fc\u30b6\u30fc \u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\u3092\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3068\u533f\u540d\u6027<\/strong>ABR \u306f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3 \u30dd\u30ea\u30b7\u30fc\u3092\u9069\u7528\u3057\u3001\u30d7\u30ed\u30ad\u30b7 \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u306e\u30e6\u30fc\u30b6\u30fc \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u533f\u540d\u5316\u3059\u308b\u3053\u3068\u3067\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u3068\u4fdd\u8b77\u3092\u5f37\u5316\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>\u95a2\u9023\u30ea\u30f3\u30af<\/h2>\n<p>\u30a8\u30ea\u30a2\u5883\u754c\u30eb\u30fc\u30bf\u3068\u95a2\u9023\u3059\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30c8\u30d4\u30c3\u30af\u306b\u95a2\u3059\u308b\u8a73\u7d30\u306a\u60c5\u5831\u306b\u3064\u3044\u3066\u306f\u3001\u6b21\u306e\u30ea\u30bd\u30fc\u30b9\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<ol>\n<li><a href=\"https:\/\/tools.ietf.org\/html\/rfc1142\" target=\"_new\" rel=\"noopener nofollow\">IETF RFC 1142: OSI IS-IS \u30c9\u30e1\u30a4\u30f3\u5185\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0 \u30d7\u30ed\u30c8\u30b3\u30eb<\/a><\/li>\n<li><a href=\"https:\/\/www.cisco.com\/c\/en\/us\/support\/docs\/ip\/open-shortest-path-first-ospf\/7039-1.html\" target=\"_new\" rel=\"noopener nofollow\">Cisco: OSPF \u2013 \u30aa\u30fc\u30d7\u30f3\u6700\u77ed\u30d1\u30b9\u512a\u5148<\/a><\/li>\n<li><a href=\"https:\/\/www.juniper.net\/documentation\/us\/en\/software\/junos\/igp-routes-protocols\/topics\/topic-map\/isis-protocol.html\" target=\"_new\" rel=\"noopener nofollow\">Juniper Networks: IS-IS (\u4e2d\u9593\u30b7\u30b9\u30c6\u30e0\u9593)<\/a><\/li>\n<\/ol>\n<p>\u7d50\u8ad6\u3068\u3057\u3066\u3001\u30a8\u30ea\u30a2\u5883\u754c\u30eb\u30fc\u30bf\u30fc\u306f\u73fe\u4ee3\u306e\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u91cd\u8981\u306a\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3067\u3042\u308a\u3001\u7570\u306a\u308b\u30a8\u30ea\u30a2\u9593\u306e\u52b9\u7387\u7684\u306a\u76f8\u4e92\u63a5\u7d9a\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002OneProxy \u306e\u3088\u3046\u306a\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc \u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u306b\u3068\u3063\u3066\u3001ABR \u306e\u7d71\u5408\u306f\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u5411\u4e0a\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u5f37\u5316\u3001\u30e6\u30fc\u30b6\u30fc \u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\u306e\u5411\u4e0a\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304c\u9032\u5316\u3057\u7d9a\u3051\u308b\u306b\u3064\u308c\u3066\u3001ABR \u306f\u9069\u5fdc\u3057\u3001\u5927\u898f\u6a21\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u306e\u57fa\u672c\u8981\u7d20\u3067\u3042\u308a\u7d9a\u3051\u308b\u3053\u3068\u304c\u671f\u5f85\u3055\u308c\u307e\u3059\u3002<\/p>","protected":false},"featured_media":475675,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-475905","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>Area Border Router: Enhancing Proxy Server Networks<\/mark>","faq_items":[{"question":"What is the Area Border Router (ABR)?","answer":"<p>The Area Border Router (ABR) is a crucial component of computer networks that serves as a link between different routing domains or areas within a network. It efficiently manages and directs data packets between these areas, ensuring seamless communication and data transmission.<\/p>"},{"question":"How did the concept of ABR originate?","answer":"<p>The concept of the Area Border Router emerged with the development of computer networking in the 1960s and 1970s. It was first mentioned in the early 1980s when the Internet Engineering Task Force (IETF) standardized the Intermediate System to Intermediate System (IS-IS) routing protocol, introducing the idea of \"areas\" and \"level-1\" and \"level-2\" routing domains.<\/p>"},{"question":"What are the key features of ABR?","answer":"<p>The Area Border Router offers several key features, including hierarchical routing, efficient data transfer, fault isolation, and traffic engineering capabilities. These features enhance network scalability, stability, and performance.<\/p>"},{"question":"How does the ABR work internally?","answer":"<p>The ABR operates at the boundary of two or more areas in a network. It maintains a routing table, uses routing algorithms for optimal path calculation, and keeps an Area Link-State Database (LSDB) with detailed area information. Its multiple interfaces connect to different areas, enabling efficient data exchange.<\/p>"},{"question":"What types of ABRs exist?","answer":"<p>ABRs can be classified based on the routing protocols they support and their connectivity scope. Types include OSPF ABR and IS-IS ABR based on routing protocols and Inter-Area ABR and Inter-AS ABR based on connectivity scope.<\/p>"},{"question":"How can ABRs be used with proxy servers?","answer":"<p>Proxy server providers like OneProxy can benefit from ABRs to optimize data flow and efficiently handle requests from different areas. ABRs can ensure load balancing, reduced latency, and enhanced security within the proxy network.<\/p>"},{"question":"What are the future prospects for ABR?","answer":"<p>As networks continue to evolve, ABRs are expected to be further enhanced. Technologies like Software-Defined Networking (SDN) and IPv6 adoption will impact ABR design and deployment, leading to improved network management and performance.<\/p>"},{"question":"What are the common problems related to ABR use?","answer":"<p>Some common issues include network congestion, routing instability, and security concerns. These can be mitigated through traffic engineering techniques, careful network design, and robust security measures.<\/p>"},{"question":"How can ABR benefit Internet Service Providers (ISPs) and Enterprise Networks?","answer":"<p>ISPs and large organizations can leverage ABRs to interconnect different network areas, manage traffic efficiently, and enhance overall network performance and stability.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/wiki\/475905","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/wiki\/475905\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/media\/475675"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/media?parent=475905"}],"curies":[{"name":"\u3046\u30fc\u3093","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}