{"id":4092,"date":"2025-11-13T00:00:00","date_gmt":"2025-11-13T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/glossary\/ldp-label-distribution-protocol-in-mpls-network\/"},"modified":"2026-06-22T05:08:43","modified_gmt":"2026-06-22T05:08:43","slug":"ldp-label-distribution-protocol-in-mpls-network","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/ja\/glossary\/ldp-label-distribution-protocol-in-mpls-network","title":{"rendered":"LDP\u3068\u306f\uff1fMPLS\u30e9\u30d9\u30eb\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u306e\u57fa\u76e4"},"content":{"rendered":"
\"What<\/figure>\n\n\n\n

\ud83d\udd39 LDP\u3068\u306f\u4f55\u304b\uff1f<\/h2>\n\n\n\n

LDP\uff08\u30e9\u30d9\u30eb\u914d\u5e03\u30d7\u30ed\u30c8\u30b3\u30eb\uff09<\/strong> \u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u3067\u30eb\u30fc\u30bf\u30fc\u9593\u3067\u30e9\u30d9\u30eb\u3092\u81ea\u52d5\u7684\u306b\u5272\u308a\u5f53\u3066\u30fb\u4ea4\u63db\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u308b\u5236\u5fa1\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3059\u3002 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\u5185\u3067\u30eb\u30fc\u30bf\u30fc\u9593\u3067\u30e9\u30d9\u30eb\u3092\u81ea\u52d5\u7684\u306b\u5272\u308a\u5f53\u3066\u30fb\u4ea4\u63db\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u308b\u5236\u5fa1\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3059\u3002.
\u5f93\u6765\u306eIP\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u306b\u306e\u307f\u4f9d\u5b58\u3059\u308b\u4ee3\u308f\u308a\u306b\u3001MPLS\u3067\u306f\u77ed\u304f\u56fa\u5b9a\u9577\u306e\u30e9\u30d9\u30eb\u3092\u7528\u3044\u3066\u3001\u4e8b\u524d\u306b\u78ba\u7acb\u3055\u308c\u305f\u30d1\u30b9\uff08\u3044\u308f\u3086\u308b \u30e9\u30d9\u30eb\u30b9\u30a4\u30c3\u30c1\u30c9\u30d1\u30b9\uff08LSP\uff09<\/strong><\/a>.<\/p>\n\n\n\n

LDP\u3092\u901a\u3058\u3066\u3001\u30eb\u30fc\u30bf\u30fc \u2014 \u7279\u306b \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> \u2014 \u304c\u30e9\u30d9\u30eb\u30de\u30c3\u30d4\u30f3\u30b0\u60c5\u5831\u3092\u52d5\u7684\u306b\u901a\u4fe1\u3057\u3001MPLS\u30d0\u30c3\u30af\u30dc\u30fc\u30f3\u4e0a\u3067\u4eee\u60f3\u56de\u8def\u306e\u3088\u3046\u306a\u30d1\u30b9\u3092\u69cb\u7bc9\u3067\u304d\u307e\u3059\u3002.<\/p>\n\n\n\n

\ud83d\udd39 LDP\u306e\u52d5\u4f5c\u539f\u7406<\/h2>\n\n\n\n

1. \u767a\u898b\u3068\u30bb\u30c3\u30b7\u30e7\u30f3\u78ba\u7acb<\/h3>\n\n\n\n

\u30eb\u30fc\u30bf\u30fc\u306f\u96a3\u63a5\u3059\u308bLSR\u3092\u767a\u898b\u3059\u308b\u305f\u3081\u306b LDP Hello\u30e1\u30c3\u30bb\u30fc\u30b8<\/strong>.
\u63a5\u7d9a\u304c\u78ba\u7acb\u3055\u308c\u308b\u3068\uff08\u901a\u5e38\u306fTCP\u30dd\u30fc\u30c8646\u3092\u4f7f\u7528\uff09\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a LDP\u30bb\u30c3\u30b7\u30e7\u30f3<\/strong> \u3092\u78ba\u7acb\u3057\u3066\u30e9\u30d9\u30eb\u60c5\u5831\u3092\u4ea4\u63db\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n

2. \u30e9\u30d9\u30eb\u30de\u30c3\u30d4\u30f3\u30b0\u304a\u3088\u3073\u901a\u77e5<\/h3>\n\n\n\n

\u5404LSR\u306f\u3001\u81ea\u8eab\u306e\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30c6\u30fc\u30d6\u30eb\u5185\u306eIP\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u306b\u30ed\u30fc\u30ab\u30eb\u30e9\u30d9\u30eb\u3092\u95a2\u9023\u4ed8\u3051\u307e\u3059 \u2014 \u305f\u3068\u3048\u3070\uff1a<\/p>\n\n\n\n

10.10.0.0\/16 \u2192 \u30e9\u30d9\u30eb102\n<\/code><\/pre>\n\n\n\n
\u3053\u306e\u3088\u3046\u306a\u30e9\u30d9\u30eb\u30de\u30c3\u30d4\u30f3\u30b0\u306f\u96a3\u63a5\u30ce\u30fc\u30c9\u306b\u901a\u77e5\u3055\u308c\u3001\u4e00\u8cab\u6027\u306e\u3042\u308b \u30e9\u30d9\u30eb\u8ee2\u9001\u60c5\u5831\u30d9\u30fc\u30b9\uff08LFIB\uff09<\/strong>.<\/p>\n\n\n\n
3. \u30e9\u30d9\u30eb\u30b9\u30a4\u30c3\u30c1\u30c9\u30d1\u30b9\uff08LSP\uff09\u306e\u4f5c\u6210<\/h3>\n\n\n\n
\u5404\u30eb\u30fc\u30bf\u30fc\u304c\u30d4\u30a2\u304b\u3089\u30e9\u30d9\u30eb\u60c5\u5831\u3092\u53d7\u4fe1\u3059\u308b\u3068\u3001\u30d1\u30b1\u30c3\u30c8\u8ee2\u9001\u306b\u5fc5\u8981\u306a\u30e9\u30d9\u30eb\u30b9\u30bf\u30c3\u30af\u3092\u69cb\u7bc9\u3057\u307e\u3059\u3002.
\u3053\u306e\u30d7\u30ed\u30bb\u30b9\u306b\u3088\u308a\u3001\u5b8c\u5168\u306a \u30e9\u30d9\u30eb\u30b9\u30a4\u30c3\u30c1\u30c9\u30d1\u30b9\uff08LSP\uff09<\/strong><\/a> \u304c\u5165\u53e3LER\u304b\u3089\u51fa\u53e3LER\u307e\u3067\u5f62\u6210\u3055\u308c\u3001\u30d1\u30b1\u30c3\u30c8\u306f\u7e70\u308a\u8fd4\u3057IP\u30eb\u30c3\u30af\u30a2\u30c3\u30d7\u3092\u884c\u308f\u305a\u306b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u3092\u901a\u904e\u3067\u304d\u307e\u3059\u3002.<\/p>\n\n\n\n
\"MPLS<\/figure>\n\n\n\n
\ud83d\udd39 LDP\u3068RSVP-TE\uff1a\u305d\u306e\u9055\u3044\u3092\u7406\u89e3\u3059\u308b<\/h2>\n\n\n\n
\n\n<\/colgroup>
\u6a5f\u80fd<\/p><\/th>
LDP<\/strong><\/p><\/th>
RSVP-TE<\/strong><\/p><\/th><\/tr>
\u30d1\u30b9\u5236\u5fa1<\/strong><\/p><\/td>
IGP\u6700\u77ed\u7d4c\u8def\u306b\u57fa\u3065\u304f<\/p><\/td>
\u7ba1\u7406\u8005\u306b\u3088\u3063\u3066\u660e\u793a\u7684\u306b\u5b9a\u7fa9\u3055\u308c\u308b<\/p><\/td><\/tr>
\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0<\/strong><\/p><\/td>
\u3044\u3044\u3048<\/p><\/td>
\u306f\u3044<\/p><\/td><\/tr>
QoS\uff0f\u5e2f\u57df\u5e45\u4fdd\u8a3c<\/strong><\/p><\/td>
\u5236\u9650\u3042\u308a<\/p><\/td>
\u5bfe\u5fdc<\/p><\/td><\/tr>
\u8907\u96d1\u3055<\/strong><\/p><\/td>
\u7c21\u5358<\/p><\/td>
\u3088\u308a\u8907\u96d1<\/p><\/td><\/tr>
\u7528\u9014\u4f8b<\/strong><\/p><\/td>
\u4e00\u822c\u7684\u306aMPLS\u8ee2\u9001<\/p><\/td>
\u30d0\u30c3\u30af\u30dc\u30fc\u30f3\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u6700\u9069\u5316<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n
\u4e00\u65b9\u3001 LDP<\/strong> \u30e9\u30d9\u30eb\u30d1\u30b9\u3092\u78ba\u7acb\u3059\u308b\u305f\u3081\u306e\u30b7\u30f3\u30d7\u30eb\u304b\u3064\u30b9\u30b1\u30fc\u30e9\u30d6\u30eb\u306a\u65b9\u6cd5\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002, RSVP-TE\uff08Resource Reservation Protocol \u2013 Traffic Engineering\uff09<\/strong> \u5927\u898f\u6a21\u30ad\u30e3\u30ea\u30a2\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u304a\u3044\u3066\u3001\u5e2f\u57df\u5e45\u4fdd\u8a3c\u3084QoS\u5f37\u5236\u306a\u3069\u306e\u9ad8\u5ea6\u306a\u5236\u5fa1\u3092\u53ef\u80fd\u306b\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n
\ud83d\udd39 LDP\u306e\u7a2e\u985e<\/h2>\n\n\n\n
\u25b7 \u57fa\u672cLDP\uff08\u30db\u30c3\u30d7\u5358\u4f4dLDP\uff09<\/h3>\n\n\n\n
\u30e9\u30d9\u30eb\u306fIGP\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u60c5\u5831\uff08OSPF\u3001IS-IS\u306a\u3069\uff09\u306b\u57fa\u3065\u3044\u3066\u5272\u308a\u5f53\u3066\u3089\u308c\u307e\u3059\u3002.
\u5404\u30db\u30c3\u30d7\u304c\u6b21\u306b\u5272\u308a\u5f53\u3066\u308b\u30e9\u30d9\u30eb\u3092\u72ec\u7acb\u3057\u3066\u6c7a\u5b9a\u3057\u3001\u30d9\u30b9\u30c8\u30a8\u30d5\u30a9\u30fc\u30c8\u578b\u306eLSP\u3092\u5f62\u6210\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n
\u25b7 \u30bf\u30fc\u30b2\u30c3\u30c8LDP\uff08tLDP\uff09<\/h3>\n\n\n\n
\u76f4\u63a5\u63a5\u7d9a\u3055\u308c\u3066\u3044\u306a\u3044\u30eb\u30fc\u30bf\u30fc\u9593\u3067LSP\u3092\u78ba\u7acb\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002.
\u3053\u308c\u306f MPLS\u30ec\u30a4\u30e4\u30fc2\uff0f3 VPN<\/strong>, \u306b\u304a\u3044\u3066\u3001\u30ea\u30e2\u30fc\u30c8\u30a8\u30c3\u30b8\u30eb\u30fc\u30bf\u30fc\u9593\u3067\u30e9\u30d9\u30eb\u4ea4\u63db\u304c\u884c\u308f\u308c\u308b\u969b\u306b\u4e0d\u53ef\u6b20\u3067\u3059\u3002.<\/p>\n\n\n\n
\ud83d\udd39 LDP\u3092\u63a1\u7528\u3059\u308b\u30e1\u30ea\u30c3\u30c8<\/h2>\n\n\n\n