{"id":4087,"date":"2025-11-13T00:00:00","date_gmt":"2025-11-13T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/knowledge-center\/lsr-and-ler-mpls-network-guide\/"},"modified":"2026-06-22T05:09:15","modified_gmt":"2026-06-22T05:09:15","slug":"lsr-and-ler-mpls-network-guide","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/ja\/knowledge-center\/lsr-and-ler-mpls-network-guide","title":{"rendered":"MPLS\u306e\u5185\u90e8\uff1a\u30e9\u30d9\u30eb\u30b9\u30a4\u30c3\u30c1\u30eb\u30fc\u30bf\u30fc\uff08LSR\uff09\u3068\u30e9\u30d9\u30eb\u30a8\u30c3\u30b8\u30eb\u30fc\u30bf\u30fc\uff08LER\uff09"},"content":{"rendered":"

\u6700\u65b0\u306e MPLS\uff08\u30de\u30eb\u30c1\u30d7\u30ed\u30c8\u30b3\u30eb\u30e9\u30d9\u30eb\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\uff09<\/strong><\/a> \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3001, \u30e9\u30d9\u30eb\u30b9\u30a4\u30c3\u30c1\u30eb\u30fc\u30bf\u30fc\uff08LSR\uff09<\/strong> \u304a\u3088\u3073 \u30e9\u30d9\u30eb\u30a8\u30c3\u30b8\u30eb\u30fc\u30bf\u30fc\uff08LER\uff09<\/strong> \u52b9\u7387\u7684\u304b\u3064\u9ad8\u901f\u306a\u30c7\u30fc\u30bf\u8ee2\u9001\u306e\u57fa\u76e4\u3092\u5f62\u6210\u3057\u307e\u3059\u3002\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a8\u30f3\u30b8\u30cb\u30a2\u3001\u30a4\u30f3\u30c6\u30b0\u30ec\u30fc\u30bf\u30fc\u3001\u304a\u3088\u3073\u30c7\u30fc\u30bf\u30bb\u30f3\u30bf\u30fc\u8a2d\u8a08\u8005\u304c\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u30d5\u30ed\u30fc\u306e\u6700\u9069\u5316\u3001\u30b5\u30fc\u30d3\u30b9\u54c1\u8cea\uff08QoS\uff09\u306e\u9069\u7528\u3001\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u63a5\u7d9a\u306e\u78ba\u4fdd\u3092\u76ee\u6307\u3059\u4e0a\u3067\u3001\u305d\u308c\u3089\u306e\u5f79\u5272\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u4e0d\u53ef\u6b20\u3067\u3059\u3002.<\/p>\n\n\n\n

\u2705 LSR\u304a\u3088\u3073LER\u3068\u306f\uff1f<\/h2>\n\n\n\n
\"Label<\/figure>\n\n\n\n

\u25b7 \u30e9\u30d9\u30eb\u30b9\u30a4\u30c3\u30c1\u30eb\u30fc\u30bf\uff08LSR\uff09<\/h3>\n\n\n\n

\u5149\u5b66\u30e2\u30b8\u30e5\u30fc\u30eb\u30cf\u30a6\u30b8\u30f3\u30b0<\/span> LSR<\/strong> \u306f\u3001\u30d1\u30b1\u30c3\u30c8\u3092\u8ee2\u9001\u3059\u308b\u969b\u306bIP\u30a2\u30c9\u30ec\u30b9\u3067\u306f\u306a\u304f \u30e9\u30d9\u30eb\u306e\u307f\u306b\u57fa\u3065\u3044\u3066\u52d5\u4f5c\u3059\u308b<\/strong>, \u30b3\u30a2MPLS\u30eb\u30fc\u30bf\u3067\u3059\u3002\u30e9\u30d9\u30eb\u4ea4\u63db\u30c6\u30fc\u30d6\u30eb\uff08LFIB\uff09\u3092\u7528\u3044\u308b\u3053\u3068\u3067\u3001 \u30e9\u30d9\u30eb\u8ee2\u9001\u60c5\u5831\u30d9\u30fc\u30b9\uff08LFIB\uff09<\/strong>, \u5165\u529b\u30e9\u30d9\u30eb\u3092\u51fa\u529b\u30e9\u30d9\u30eb\u306b\u4ea4\u63db\u3057\u3001 \u30ef\u30a4\u30e4\u30b9\u30d4\u30fc\u30c9\u3067\u6b21\u306e\u30db\u30c3\u30d7\u3078\u30d1\u30b1\u30c3\u30c8\u3092\u9001\u4fe1\u3067\u304d\u307e\u3059\u3002<\/strong>.<\/p>\n\n\n\n

LSR\u306f\u3001 \u4e2d\u9593\u30ce\u30fc\u30c9\u3067\u3042\u308a\u3001<\/strong> \u306b\u304a\u3044\u3066\u306f\u3001
\u30e9\u30d9\u30eb\u30b9\u30a4\u30c3\u30c1\u30c9\u30d1\u30b9\uff08LSP\uff09<\/a>, \u3092\u62c5\u5f53\u3057\u3001 \u9ad8\u901f\u30fb\u6c7a\u5b9a\u8ad6\u7684\u30fb\u30b9\u30b1\u30fc\u30e9\u30d6\u30eb\u306a\u30d1\u30b1\u30c3\u30c8\u8ee2\u9001\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002<\/strong>.<\/p>\n\n\n\n

\u25b7 \u30e9\u30d9\u30eb\u30a8\u30c3\u30b8\u30eb\u30fc\u30bf\uff08LER\uff09<\/h3>\n\n\n\n

\u5149\u5b66\u30e2\u30b8\u30e5\u30fc\u30eb\u30cf\u30a6\u30b8\u30f3\u30b0<\/span> LER<\/strong> \u306fMPLS\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u30a8\u30c3\u30b8\u3067\u52d5\u4f5c\u3057\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3078 \u6d41\u5165\u304a\u3088\u3073\u6d41\u51fa\u3059\u308b\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u51e6\u7406\u3057\u307e\u3059\u3002<\/strong>. \u4e3b\u306a\u6a5f\u80fd\u306f\u4ee5\u4e0b\u306e\u3068\u304a\u308a\u3067\u3059\uff1a<\/p>\n\n\n\n

    \n

  1. \u30a4\u30f3\u30b0\u30ec\u30b9LER\uff1a<\/strong> \u53d7\u4fe1\u3057\u305fIP\u30d1\u30b1\u30c3\u30c8\u306bMPLS\u30e9\u30d9\u30eb\u3092\u4ed8\u4e0e\u3057\u307e\u3059\uff08\u30e9\u30d9\u30eb\u4ed8\u4e0e\uff1aLabel Imposition\uff09\u3002.<\/p><\/li>

  2. \u30a8\u30b0\u30ec\u30b9LER\uff1a<\/strong> \u30d1\u30b1\u30c3\u30c8\u3092\u5b9b\u5148\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3078\u8ee2\u9001\u3059\u308b\u524d\u306b\u30e9\u30d9\u30eb\u3092\u524a\u9664\u3057\u307e\u3059\uff08\u30e9\u30d9\u30eb\u9664\u53bb\uff1aLabel Disposition\uff09\u3002.<\/p><\/li>\n<\/ol>\n\n\n\n

    LER\u306f\u307e\u305f\u3001IP\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u3068\u30e9\u30d9\u30eb\u3092\u30de\u30c3\u30d4\u30f3\u30b0\u3059\u308b\u305f\u3081\u306e\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u60c5\u5831\u3092\u4fdd\u6301\u3057\u3001LDP\u3084RSVP-TE\u306a\u3069\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u4ecb\u3057\u3066LSR\u3068\u901a\u4fe1\u3057\u307e\u3059\u3002 LDP\uff08\u30e9\u30d9\u30eb\u914d\u5e03\u30d7\u30ed\u30c8\u30b3\u30eb\uff09<\/strong><\/a>.<\/p>\n\n\n\n

    \u2705 LSR\u304a\u3088\u3073LER\u306e\u9023\u643a\u52d5\u4f5c<\/h2>\n\n\n\n
    \"Label<\/figure>\n\n\n\n

    MPLS\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u304a\u3051\u308b\u30d1\u30b1\u30c3\u30c8\u8ee2\u9001\u306f\u901a\u5e38\u3001\u4ee5\u4e0b\u306e3\u6bb5\u968e\u3067\u69cb\u6210\u3055\u308c\u307e\u3059\uff1a<\/p>\n\n\n\n

    \n\n<\/colgroup>

    \u30c7\u30d0\u30a4\u30b9<\/p><\/th>

    \u5f79\u5272<\/p><\/th>

    \u6a5f\u80fd<\/p><\/th><\/tr>

    \u30a4\u30f3\u30b0\u30ec\u30b9LER<\/strong><\/p><\/td>

    \u30a8\u30f3\u30c8\u30ea\u30dd\u30a4\u30f3\u30c8<\/p><\/td>

    IP\u30d1\u30b1\u30c3\u30c8\u306b\u30e9\u30d9\u30eb\u3092\u4ed8\u4e0e<\/p><\/td><\/tr>

    \u30b3\u30a2LSR<\/strong><\/p><\/td>

    \u30c8\u30e9\u30f3\u30b8\u30c3\u30c8\u30ce\u30fc\u30c9<\/p><\/td>

    LFIB\u306b\u57fa\u3065\u304d\u30e9\u30d9\u30eb\u3092\u4ea4\u63db\u3057\u3001\u30d1\u30b1\u30c3\u30c8\u3092\u8ee2\u9001<\/p><\/td><\/tr>

    \u30a8\u30b0\u30ec\u30b9LER<\/strong><\/p><\/td>

    \u30a8\u30af\u30b8\u30c3\u30c8\u30dd\u30a4\u30f3\u30c8<\/p><\/td>

    \u30e9\u30d9\u30eb\u3092\u524a\u9664\u3057\u3001\u5b9b\u5148IP\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3078\u8ee2\u9001<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n

    \u3053\u306e\u30e9\u30d9\u30eb\u30d9\u30fc\u30b9\u306e\u8ee2\u9001\u306b\u3088\u308a\u3001 \u5f93\u6765\u306eIP\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3068\u6bd4\u8f03\u3057\u3066<\/strong> \u306f\u308b\u304b\u306b\u9ad8\u901f\u306a\u30d1\u30b1\u30c3\u30c8\u51e6\u7406\u304c\u53ef\u80fd\u3068\u306a\u308a\u3001\u540c\u6642\u306b \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0<\/strong> \u304a\u3088\u3073 QoS\u306e\u5dee\u5225\u5316<\/strong>.<\/p>\n\n\n\n

    \u2705 LSR\u304a\u3088\u3073LER\u306e\u5fdc\u7528\u4f8b<\/h2>\n\n\n\n