{"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\/ko\/knowledge-center\/lsr-and-ler-mpls-network-guide","title":{"rendered":"MPLS \ub0b4\ubd80 \ud0d0\uad6c: \ub77c\ubca8 \uc2a4\uc704\uce58 \ub77c\uc6b0\ud130(LSR) \ubc0f \ub77c\ubca8 \uc5e3\uc9c0 \ub77c\uc6b0\ud130(LER)"},"content":{"rendered":"

\ud604\ub300\uc758 MPLS(\ub2e4\uc911 \ud504\ub85c\ud1a0\ucf5c \ub77c\ubca8 \uc2a4\uc704\uce6d)<\/strong><\/a> \ub124\ud2b8\uc6cc\ud06c, \ub808\uc774\ube14 \uc2a4\uc704\uce58 \ub77c\uc6b0\ud130(LSR)<\/strong> \ubc0f \ub808\uc774\ube14 \uc5e3\uc9c0 \ub77c\uc6b0\ud130(LER)<\/strong> \ud6a8\uc728\uc801\uc774\uace0 \uace0\uc18d\uc758 \ub370\uc774\ud130 \uc804\uc1a1\uc744 \uc704\ud55c \ud575\uc2ec \uc694\uc18c\uc785\ub2c8\ub2e4. \ub124\ud2b8\uc6cc\ud06c \uc5d4\uc9c0\ub2c8\uc5b4, \ud1b5\ud569 \ub2f4\ub2f9\uc790 \ubc0f \ub370\uc774\ud130 \uc13c\ud130 \uc124\uacc4\uc790\uac00 \ud2b8\ub798\ud53d \ud750\ub984\uc744 \ucd5c\uc801\ud654\ud558\uace0, \uc11c\ube44\uc2a4 \ud488\uc9c8(QoS)\uc744 \uc801\uc6a9\ud558\uba70, \uc2e0\ub8b0\ud560 \uc218 \uc788\ub294 \uc5f0\uacb0\uc744 \ubcf4\uc7a5\ud558\ub824\uba74 \uc774\ub4e4\uc758 \uc5ed\ud560\uc744 \uc774\ud574\ud558\ub294 \uac83\uc774 \ud544\uc218\uc801\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

\u2705 LSR \ubc0f LER\ub780 \ubb34\uc5c7\uc778\uac00\uc694?<\/h2>\n\n\n\n
\"Label<\/figure>\n\n\n\n

\u25b7 \ub77c\ubca8 \uc2a4\uc704\uce58 \ub77c\uc6b0\ud130(LSR)<\/h3>\n\n\n\n

\ud558\ub098\uc758 LSR<\/strong> \ub294 \ud328\ud0b7\uc744 \uc804\ub2ec\ud560 \ub54c IP \uc8fc\uc18c \ub300\uc2e0 \ub77c\ubca8\uc5d0\ub9cc \uae30\ubc18\ud558\uc5ec<\/strong>, \uc804\ub2ec\ud558\ub294 \ucf54\uc5b4 MPLS \ub77c\uc6b0\ud130\uc785\ub2c8\ub2e4. \ub77c\ubca8\uc744 \uc0ac\uc6a9\ud568\uc73c\ub85c\uc368 \ub808\uc774\ube14 \ud3ec\uc6cc\ub529 \uc815\ubcf4 \uae30\uc9c0(LFIB)<\/strong>, LSR\uc740 \uc218\uc2e0 \ub77c\ubca8\uc744 \uc1a1\uc2e0 \ub77c\ubca8\ub85c \uad50\uccb4\ud55c \ud6c4, \ub2e4\uc74c \ud649\uc73c\ub85c \ud328\ud0b7\uc744 \uc640\uc774\uc5b4 \uc2a4\ud53c\ub4dc(wire speed)\ub85c \uc804\uc1a1\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/strong>.<\/p>\n\n\n\n

LSR\uc740 \uc911\uac04 \ub178\ub4dc(intermediate nodes)\uc774\uba70,<\/strong> \uc5d0\uc11c \ub808\uc774\ube14 \uc2a4\uc704\uce58\ub4dc \uacbd\ub85c(LSP)<\/a>, \ub97c \ud0d1\uc7ac\ud558\uc5ec \ube60\ub974\uace0 \uacb0\uc815\ub860\uc801\uc774\uba70 \ud655\uc7a5 \uac00\ub2a5\ud55c \ud328\ud0b7 \ud3ec\uc6cc\ub529\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/strong>.<\/p>\n\n\n\n

\u25b7 \ub77c\ubca8 \uc5e3\uc9c0 \ub77c\uc6b0\ud130(LER)<\/h3>\n\n\n\n

\ud558\ub098\uc758 LER<\/strong> \ub294 MPLS \ub124\ud2b8\uc6cc\ud06c\uc758 \uacbd\uacc4\uc5d0\uc11c \uc791\ub3d9\ud558\uba70, \ub124\ud2b8\uc6cc\ud06c\ub85c \uc720\uc785 \ubc0f \uc720\ucd9c\ub418\ub294 \ud2b8\ub798\ud53d\uc744 \ucc98\ub9ac\ud569\ub2c8\ub2e4.<\/strong>. \uc8fc\uc694 \uae30\ub2a5\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\n\n\n\n

    \n

  1. \uc778\uadf8\ub808\uc2a4 LER:<\/strong> \uc218\uc2e0 IP \ud328\ud0b7\uc5d0 MPLS \ub77c\ubca8\uc744 \ud560\ub2f9\ud569\ub2c8\ub2e4(\ub77c\ubca8 \ubd80\uacfc, Label Imposition).<\/p><\/li>

  2. \uc774\uadf8\ub808\uc2a4 LER:<\/strong> \ud328\ud0b7\uc744 \ubaa9\uc801\uc9c0 \ub124\ud2b8\uc6cc\ud06c\ub85c \ud3ec\uc6cc\ub529\ud558\uae30 \uc804\uc5d0 \ub77c\ubca8\uc744 \uc81c\uac70\ud569\ub2c8\ub2e4(\ub77c\ubca8 \ud574\uc81c, Label Disposition).<\/p><\/li>\n<\/ol>\n\n\n\n

    LER\uc740 \ub610\ud55c IP \uc811\ub450\uc0ac\uc640 \ub77c\ubca8 \uac04 \ub9e4\ud551\uc744 \uc704\ud574 \ub77c\uc6b0\ud305 \uc815\ubcf4\ub97c \uc720\uc9c0\ud558\uace0, LSR\uacfc \uac19\uc740 \ud504\ub85c\ud1a0\ucf5c\uc744 \ud1b5\ud574 \ud1b5\uc2e0\ud569\ub2c8\ub2e4. LDP(\ub77c\ubca8 \ubd84\ubc30 \ud504\ub85c\ud1a0\ucf5c)<\/strong><\/a>.<\/p>\n\n\n\n

    \u2705 LSR \ubc0f LER\uc758 \ud611\uc5c5 \ubc29\uc2dd<\/h2>\n\n\n\n
    \"Label<\/figure>\n\n\n\n

    MPLS \ub124\ud2b8\uc6cc\ud06c\uc5d0\uc11c\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \ud328\ud0b7 \ud3ec\uc6cc\ub529\uc774 \uc138 \ub2e8\uacc4\ub85c \uc774\ub8e8\uc5b4\uc9d1\ub2c8\ub2e4:<\/p>\n\n\n\n

    \n\n<\/colgroup>

    \uc7a5\uce58<\/p><\/th>

    \uc5ed\ud560<\/p><\/th>

    \uae30\ub2a5<\/p><\/th><\/tr>

    \uc778\uadf8\ub808\uc2a4 LER<\/strong><\/p><\/td>

    \uc9c4\uc785 \uc9c0\uc810<\/p><\/td>

    IP \ud328\ud0b7\uc5d0 \ub77c\ubca8\uc744 \ucd94\uac00\ud569\ub2c8\ub2e4<\/p><\/td><\/tr>

    \ucf54\uc5b4 LSR<\/strong><\/p><\/td>

    \uc804\ub2ec \ub178\ub4dc<\/p><\/td>

    LFIB\uc5d0 \ub530\ub77c \ub77c\ubca8\uc744 \uad50\uccb4\ud558\uace0 \ud328\ud0b7\uc744 \ud3ec\uc6cc\ub529\ud569\ub2c8\ub2e4<\/p><\/td><\/tr>

    \uc774\uadf8\ub808\uc2a4 LER<\/strong><\/p><\/td>

    \ud0c8\ucd9c \uc9c0\uc810<\/p><\/td>

    \ub77c\ubca8\uc744 \uc81c\uac70\ud55c \ud6c4 \ubaa9\uc801\uc9c0 IP \ub124\ud2b8\uc6cc\ud06c\ub85c \ud3ec\uc6cc\ub529\ud569\ub2c8\ub2e4<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n

    \uc774\ub7ec\ud55c \ub77c\ubca8 \uae30\ubc18 \ud3ec\uc6cc\ub529\uc740 \uc804\ud1b5\uc801\uc778 IP \ub77c\uc6b0\ud305\uc5d0 \ube44\ud574<\/strong> \ud6e8\uc52c \ube60\ub978 \ud328\ud0b7 \ucc98\ub9ac\ub97c \uac00\ub2a5\ud558\uac8c \ud558\uba70, \ub3d9\uc2dc\uc5d0 \ud2b8\ub798\ud53d \uc5d4\uc9c0\ub2c8\uc5b4\ub9c1<\/strong> \ubc0f QoS \ucc28\ubcc4\ud654\ub97c \uc9c0\uc6d0\ud569\ub2c8\ub2e4<\/strong>.<\/p>\n\n\n\n

    \u2705 LSR \ubc0f LER\uc758 \uc751\uc6a9 \ubd84\uc57c<\/h2>\n\n\n\n