{"id":286,"date":"2025-02-13T16:27:00","date_gmt":"2025-02-13T07:27:00","guid":{"rendered":"https:\/\/ccna-curriculum.tech-village.co.jp\/?p=286"},"modified":"2025-10-08T15:08:35","modified_gmt":"2025-10-08T06:08:35","slug":"wan","status":"publish","type":"post","link":"https:\/\/ccna-curriculum.tech-village.co.jp\/?p=286","title":{"rendered":"WAN"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">WAN\u3068\u306f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><span class=\"swl-marker mark_yellow\">WAN\uff08Wide Area Network\u3001\u5e83\u57df\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff09<\/span><\/strong>\u306f\u3001NTT\u306a\u3069\u306e\u901a\u4fe1\u4e8b\u696d\u8005\u304c\u63d0\u4f9b\u3059\u308b\u30b5\u30fc\u30d3\u30b9\u3092\u5229\u7528\u3057\u3066\u3001\u672c\u793e\u3068\u652f\u793e\u306a\u3069\u5730\u7406\u7684\u306b\u96e2\u308c\u305f\u62e0\u70b9\u540c\u58eb\u3092\u63a5\u7d9a\u3059\u308b\u305f\u3081\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u3059\u3002LAN\u306f\u4f01\u696d\u304c\u81ea\u3089\u6a5f\u5668\u3092\u6240\u6709\u3057\u3066\u8a2d\u8a08\u30fb\u69cb\u7bc9\u3057\u307e\u3059\u304c\u3001WAN\u306f\u30ad\u30e3\u30ea\u30a2\u306e\u56de\u7dda\u3092\u501f\u308a\u3066\u5229\u7528\u3059\u308b\u305f\u3081\u3001\u6bce\u6708\u306e\u5229\u7528\u6599\u91d1\u304c\u767a\u751f\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u30ad\u30e3\u30ea\u30a2\u306f\u30b5\u30fc\u30d3\u30b9\u54c1\u8cea\u3092\u4fdd\u8a3c\u3059\u308b\u305f\u3081\u306b<strong><span class=\"swl-marker mark_yellow\">SLA\uff08Service Level Agreement\u3001\u30b5\u30fc\u30d3\u30b9\u54c1\u8cea\u4fdd\u8a3c\u5236\u5ea6\uff09<\/span><\/strong>\u3092\u5b9a\u3081\u3066\u3044\u307e\u3059\u3002SLA\u3068\u306f\u5229\u7528\u8005\u3068\u30ad\u30e3\u30ea\u30a2\u3068\u306e\u9593\u3067\u53d6\u308a\u6c7a\u3081\u308b\u30b5\u30fc\u30d3\u30b9\u54c1\u8cea\u306e\u5408\u610f\u306e\u3053\u3068\u3067\u3001\u4f8b\u3048\u3070\u300c\u5f80\u5fa9\u9045\u5ef6\u304c\u6708\u5e73\u574710ms\u4ee5\u5185\u300d\u300c\u969c\u5bb3\u767a\u751f\u6642\u306f1\u6642\u9593\u4ee5\u5185\u306b\u5fa9\u65e7\u300d\u3068\u3044\u3063\u305f\u6761\u4ef6\u3092\u6e80\u305f\u305b\u306a\u3044\u5834\u5408\u3001\u5229\u7528\u6599\u91d1\u306e\u4e00\u90e8\u304c\u8fd4\u9084\u3055\u308c\u308b\u3068\u3044\u3063\u305f\u5185\u5bb9\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">WAN\u30b5\u30fc\u30d3\u30b9\u306e\u7a2e\u985e<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">WAN\u30b5\u30fc\u30d3\u30b9\u306b\u306f\u3001\u53e4\u304f\u304b\u3089\u5b58\u5728\u3059\u308b\u30a2\u30ca\u30ed\u30b0\u5c02\u7528\u7dda\u3001\u30c7\u30b8\u30bf\u30eb\u5c02\u7528\u7dda\u3001ISDN\u3001\u30d5\u30ec\u30fc\u30e0\u30ea\u30ec\u30fc\u3001ATM\uff08\u30bb\u30eb\u30ea\u30ec\u30fc\uff09\u306a\u3069\u304c\u3042\u308a\u307e\u3059\u3002\u73fe\u5728\u3067\u306f\u3001\u5e83\u57df\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u3001IP-VPN\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8VPN\u3068\u3044\u3063\u305f\u30b5\u30fc\u30d3\u30b9\u304c\u4e3b\u6d41\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u500b\u4eba\u3084SOHO\u304c\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306b\u63a5\u7d9a\u3057\u305f\u308a\u4f01\u696d\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3078\u30a2\u30af\u30bb\u30b9\u3057\u305f\u308a\u3059\u308b\u5834\u5408\u306b\u306f\u3001\u30a2\u30ca\u30ed\u30b0\u56de\u7dda\u3001ISDN\u3001ADSL\u3001FTTH\u3068\u3044\u3063\u305f\u30a2\u30af\u30bb\u30b9\u56de\u7dda\u304c\u5229\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">WAN\u3067\u5229\u7528\u3055\u308c\u308b\u30d7\u30ed\u30c8\u30b3\u30eb<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">WAN\u3067\u306f\u3001\u30d5\u30ec\u30fc\u30e0\u30ea\u30ec\u30fc\u3001ATM\u3001HDLC\u3001PPP\u3068\u3044\u3063\u305f\u30d7\u30ed\u30c8\u30b3\u30eb\u304c\u4f7f\u308f\u308c\u307e\u3059\u3002\u3053\u308c\u3089\u306fOSI\u53c2\u7167\u30e2\u30c7\u30eb\u306e\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u5c64\uff08Layer2\uff09\u3067\u52d5\u4f5c\u3057\u3001\u901a\u5e38\u306f\u30b7\u30ea\u30a2\u30eb\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u65b9\u3067\u3001\u5e83\u57df\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u306fLAN\u3068\u540c\u69d8\u306bEthernet\u3067\u52d5\u4f5c\u3057\u3001ONU\u306bEthernet\u30dd\u30fc\u30c8\u3092\u76f4\u63a5\u63a5\u7d9a\u3067\u304d\u307e\u3059\u3002IP-VPN\u306f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64\uff08Layer3\uff09\u3067\u52d5\u4f5c\u3057\u3001\u30ad\u30e3\u30ea\u30a2\u5074\u306e\u30b5\u30fc\u30d3\u30b9\u4ed5\u69d8\u306b\u5fdc\u3058\u3066\u67d4\u8edf\u306b\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u9078\u3079\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u30c7\u30b8\u30bf\u30eb\u5c02\u7528\u7dda\u306f64kbps\u304b\u3089\u6570\u5341Gbps\u307e\u3067\u5e45\u5e83\u304f\u5229\u7528\u3067\u304d\u3001\u30d7\u30ed\u30c8\u30b3\u30eb\u306b\u5236\u9650\u304c\u306a\u3044\u305f\u3081\u3001\u3055\u307e\u3056\u307e\u306aWAN\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u5229\u7528\u53ef\u80fd\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8VPN\u306e\u5c0e\u5165\u65b9\u6cd5<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8VPN\u306f\u3001\u30ad\u30e3\u30ea\u30a2\u304cVPN\u6a5f\u5668\u3092\u30ec\u30f3\u30bf\u30eb\u3057\u3001\u3042\u3089\u304b\u3058\u3081\u8a2d\u5b9a\u3055\u308c\u305f\u72b6\u614b\u3067\u63d0\u4f9b\u3055\u308c\u308b\u5834\u5408\u3082\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u65b9\u5f0f\u306f\u5c0e\u5165\u304c\u5bb9\u6613\u3067\u3059\u304c\u3001\u8a2d\u5b9a\u5909\u66f4\u306b\u306f\u8ffd\u52a0\u8cbb\u7528\u304c\u304b\u304b\u308b\u306a\u3069\u67d4\u8edf\u6027\u306b\u6b20\u3051\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u591a\u304f\u306e\u4f01\u696d\u3067\u306f\u3001\u5149\u56de\u7dda\uff08B\u30d5\u30ec\u30c3\u30c4\u306a\u3069\uff09\u3092\u5951\u7d04\u3057\u3066\u3001\u81ea\u793e\u30eb\u30fc\u30bf\u306bIPsec\u3092\u8a2d\u5b9a\u3057\u3001\u81ea\u524d\u3067\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8VPN\u3092\u69cb\u7bc9\u3059\u308b\u65b9\u6cd5\u304c\u4e00\u822c\u7684\u3067\u3059\u3002\u3053\u306e\u65b9\u6cd5\u306a\u3089\u30b3\u30b9\u30c8\u3092\u6291\u3048\u3064\u3064\u67d4\u8edf\u306b\u7ba1\u7406\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u73fe\u5728\u306e\u30b5\u30fc\u30d3\u30b9\u540d\u79f0<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u30ad\u30e3\u30ea\u30a2<\/th><th>IP-VPN (MPLS-VPN)<\/th><th>\u5e83\u57df\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8<\/th><th>\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8VPN (IPsec-VPN)<\/th><\/tr><\/thead><tbody><tr><td>NTT\u30b3\u30df\u30e5\u30cb\u30b1\u30fc\u30b7\u30e7\u30f3\u30ba<\/td><td>Arcstar Universal One L3<\/td><td>Arcstar Universal One L2<\/td><td>OCN\u30d3\u30b8\u30cd\u30b9\u30d1\u30c3\u30afVPN<\/td><\/tr><tr><td>KDDI<\/td><td>Wide Area Virtual Switch L3<\/td><td>Wide Area Virtual Switch L3<\/td><td>\u30de\u30cd\u30fc\u30b8\u30c9\u30b5\u30fc\u30d3\u30b9<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u904e\u53bb\u306e\u30b5\u30fc\u30d3\u30b9\u540d\u79f0<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u30ad\u30e3\u30ea\u30a2<\/th><th>IP-VPN (MPLS-VPN)<\/th><th>\u5e83\u57df\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8<\/th><th>\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8VPN (IPsec-VPN)<\/th><\/tr><\/thead><tbody><tr><td>NTT\u30b3\u30df\u30e5\u30cb\u30b1\u30fc\u30b7\u30e7\u30f3\u30ba<\/td><td>Arcstar IP-VPN<\/td><td>e-VLAN<\/td><td>OCN\u30d3\u30b8\u30cd\u30b9\u30d1\u30c3\u30afVPN<\/td><\/tr><tr><td>KDDI<\/td><td>KDDI IP-VPN<\/td><td>Powered Ethernet<\/td><td>\u30de\u30cd\u30fc\u30b8\u30c9\u30b5\u30fc\u30d3\u30b9<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u8a66\u9a13\u5bfe\u7b56\u3068\u3057\u3066\u306f\u3001WAN\u30b5\u30fc\u30d3\u30b9\u306e\u7a2e\u985e\u3001\u5229\u7528\u3055\u308c\u308b\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u968e\u5c64\u3001\u305d\u3057\u3066\u73fe\u5728\u4e3b\u6d41\u3068\u306a\u3063\u3066\u3044\u308b\u300c\u5e83\u57df\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u300d\u300cIP-VPN\u300d\u300c\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8VPN\u300d\u306e\u9055\u3044\u3092\u62bc\u3055\u3048\u3066\u304a\u304f\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">WAN\u306e\u57fa\u672c\u69cb\u6210\u3068\u30c7\u30d0\u30a4\u30b9<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">WAN\u3092\u69cb\u6210\u3059\u308b\u969b\u306b\u306f\u3001\u30ad\u30e3\u30ea\u30a2\u304c\u63d0\u4f9b\u3059\u308b\u30b5\u30fc\u30d3\u30b9\u3068\u3001\u5229\u7528\u8005\u304c\u6240\u6709\u3059\u308b\u6a5f\u5668\u3068\u304c\u7d44\u307f\u5408\u308f\u3055\u3063\u3066\u52d5\u4f5c\u3057\u307e\u3059\u3002\u4f7f\u7528\u3055\u308c\u308b\u30c7\u30d0\u30a4\u30b9\u3084\u5f79\u5272\u306fWAN\u30b5\u30fc\u30d3\u30b9\u306e\u7a2e\u985e\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">WAN\u3067\u4f7f\u308f\u308c\u308b\u4e3b\u8981\u30c7\u30d0\u30a4\u30b9<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><span class=\"swl-marker mark_yellow\">DTE\uff08Data Terminal Equipment\uff09<\/span><\/strong><br>\u30e6\u30fc\u30b6\u5074\u306e\u7aef\u672b\u6a5f\u5668\u3067\u3001\u5b9f\u969b\u306b\u30c7\u30fc\u30bf\u3092\u9001\u53d7\u4fe1\u3059\u308b\u88c5\u7f6e\u3067\u3059\u3002DCE\u3092\u4ecb\u3057\u3066WAN\u306b\u63a5\u7d9a\u3057\u3001\u901a\u4fe1\u3092\u884c\u3044\u307e\u3059\u3002\u30b7\u30ea\u30a2\u30eb\u56de\u7dda\u3092\u5229\u7528\u3059\u308b\u5834\u5408\u306f\u3001DCE\u304b\u3089\u4f9b\u7d66\u3055\u308c\u308b\u30af\u30ed\u30c3\u30af\u4fe1\u53f7\u306b\u5f93\u3063\u3066\u901a\u4fe1\u3057\u307e\u3059\u3002\u30eb\u30fc\u30bf\u3084\u30d1\u30bd\u30b3\u30f3\u304cDTE\u306b\u8a72\u5f53\u3057\u307e\u3059\u3002\u65e5\u672c\u8a9e\u3067\u306f\u300c\u30c7\u30fc\u30bf\u7aef\u672b\u88c5\u7f6e\u300d\u3068\u547c\u3073\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><span class=\"swl-marker mark_yellow\">DCE\uff08Data Circuit-Terminating Equipment\uff09<\/span><\/strong><br>DTE\u304b\u3089\u53d7\u3051\u53d6\u3063\u305f\u4fe1\u53f7\u3092\u30ad\u30e3\u30ea\u30a2\u306e\u56de\u7dda\u306b\u9069\u3057\u305f\u4fe1\u53f7\u3078\u5909\u63db\u3057\u3001\u9006\u306b\u30ad\u30e3\u30ea\u30a2\u7db2\u304b\u3089\u306e\u4fe1\u53f7\u3092DTE\u306b\u9069\u3057\u305f\u4fe1\u53f7\u306b\u5909\u63db\u3057\u3066\u6e21\u3059\u88c5\u7f6e\u3067\u3059\u3002\u30b7\u30ea\u30a2\u30eb\u56de\u7dda\u306e\u5834\u5408\u306fDCE\u304c\u30af\u30ed\u30c3\u30af\u4fe1\u53f7\u3092\u751f\u6210\u3057\u307e\u3059\u3002\u30e2\u30c7\u30e0\u3001DSU\u3001ONU\u304c\u8a72\u5f53\u3057\u307e\u3059\u3002\u65e5\u672c\u8a9e\u3067\u306f\u300c\u30c7\u30fc\u30bf\u56de\u7dda\u7d42\u7aef\u88c5\u7f6e\u300d\u3068\u8a00\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span class=\"swl-marker mark_yellow\"><strong>CPE\uff08Customer Premises Equipment\uff09<\/strong><br><\/span>\u52a0\u5165\u8005\u5b85\u306b\u8a2d\u7f6e\u3055\u308c\u308b\u901a\u4fe1\u6a5f\u5668\u306e\u7dcf\u79f0\u3067\u3001DTE\u3082DCE\u3082\u542b\u307e\u308c\u307e\u3059\u3002\u65e5\u672c\u8a9e\u3067\u306f\u300c\u9867\u5ba2\u5b85\u5185\u6a5f\u5668\u300d\u3068\u547c\u3070\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span class=\"swl-marker mark_yellow\"><strong>\u8cac\u4efb\u5206\u89e3\u70b9<\/strong><br><\/span>\u30ad\u30e3\u30ea\u30a2\u3068\u52a0\u5165\u8005\u306e\u8cac\u4efb\u304c\u5206\u304b\u308c\u308b\u5883\u754c\u3067\u3059\u3002\u65e5\u672c\u3067\u306fDSU\u3084ONU\u306f\u30ad\u30e3\u30ea\u30a2\u304b\u3089\u306e\u30ec\u30f3\u30bf\u30eb\u6a5f\u5668\u3068\u306a\u308b\u305f\u3081\u3001\u8cac\u4efb\u5206\u89e3\u70b9\u306fDCE\u4ee5\u964d\u304c\u30ad\u30e3\u30ea\u30a2\u5074\u3001\u305d\u308c\u307e\u3067\u306e\u914d\u7dda\u304c\u52a0\u5165\u8005\u5074\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span class=\"swl-marker mark_yellow\"><strong>\u30ed\u30fc\u30ab\u30eb\u30eb\u30fc\u30d7<\/strong><br><\/span>\u8cac\u4efb\u5206\u89e3\u70b9\u304b\u3089\u30ad\u30e3\u30ea\u30a2\u7db2\u306eWAN\u6a5f\u5668\u307e\u3067\u306e\u56de\u7dda\u533a\u9593\u3092\u6307\u3057\u307e\u3059\u3002PSTN\u3084ISDN\u306e\u5834\u5408\u306f\u30ed\u30fc\u30ab\u30eb\u30eb\u30fc\u30d7\u3001\u305d\u308c\u4ee5\u5916\u306eWAN\u30b5\u30fc\u30d3\u30b9\u3067\u306f\u30a2\u30af\u30bb\u30b9\u56de\u7dda\u3068\u547c\u3073\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">DCE\u306e\u4ee3\u8868\u4f8b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><span class=\"swl-marker mark_yellow\"><strong>\u30e2\u30c7\u30e0<\/strong><br><\/span>\u516c\u8846\u96fb\u8a71\u7db2\uff08PSTN\uff09\u3068\u306e\u63a5\u7d9a\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u30a2\u30ca\u30ed\u30b0\u56de\u7dda\u3092\u5229\u7528\u3059\u308b\u305f\u3081\u3001\u30e2\u30c7\u30e0\u306f\u30a2\u30ca\u30ed\u30b0\u306e\u30ed\u30fc\u30ab\u30eb\u30eb\u30fc\u30d7\u3092\u7d42\u7aef\u3057\u307e\u3059\u3002\u73fe\u5728\u3067\u306fWAN\u63a5\u7d9a\u306b\u5229\u7528\u3055\u308c\u308b\u3053\u3068\u306f\u307b\u3068\u3093\u3069\u306a\u304f\u3001\u4fdd\u5b88\u7528\u306e\u30c0\u30a4\u30e4\u30eb\u30a2\u30c3\u30d7\u30a2\u30af\u30bb\u30b9\u306b\u9650\u5b9a\u3055\u308c\u308b\u30b1\u30fc\u30b9\u304c\u4e00\u822c\u7684\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span class=\"swl-marker mark_yellow\"><strong>DSU\uff08Digital Service Unit\uff09<\/strong><br><\/span>ISDN\u3084\u30c7\u30b8\u30bf\u30eb\u5c02\u7528\u7dda\u3067\u5229\u7528\u3055\u308c\u307e\u3059\u3002\u30c7\u30b8\u30bf\u30eb\u4fe1\u53f7\u3092\u6271\u3046\u305f\u3081\u3001\u30c7\u30b8\u30bf\u30eb\u306e\u30ed\u30fc\u30ab\u30eb\u30eb\u30fc\u30d7\u3092\u7d42\u7aef\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span class=\"swl-marker mark_yellow\"><strong>ONU\uff08Optical Network Unit\uff09<\/strong><br><\/span>\u5149\u56de\u7dda\u30b5\u30fc\u30d3\u30b9\u306b\u7528\u3044\u3089\u308c\u308b\u88c5\u7f6e\u3067\u3001IP-VPN\u3084\u5e83\u57df\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u306eDCE\u3068\u3057\u3066\u5229\u7528\u3055\u308c\u307e\u3059\u3002ONU\u306f\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u3092\u7d42\u7aef\u3059\u308b\u88c5\u7f6e\u3067\u3042\u308a\u3001\u73fe\u5728\u4e3b\u6d41\u306eDCE\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">DTE\u3068DCE\u306e\u30b1\u30fc\u30d6\u30eb\u63a5\u7d9a<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd1\u5e74\u306eWAN\u30b5\u30fc\u30d3\u30b9\uff08IP-VPN\u3084\u5e83\u57df\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u306a\u3069\uff09\u3067\u306f\u3001DCE\u304cONU\u3068\u306a\u308b\u30b1\u30fc\u30b9\u304c\u591a\u3044\u305f\u3081\u3001DTE\u3068DCE\u306e\u63a5\u7d9a\u306b\u306fRJ45\u306eLAN\u30b1\u30fc\u30d6\u30eb\u304c\u4f7f\u308f\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u65b9\u3001\u5f93\u6765\u306eWAN\u30b5\u30fc\u30d3\u30b9\u3067\u306fDTE\u3068DCE\u3092\u30b7\u30ea\u30a2\u30eb\u30b1\u30fc\u30d6\u30eb\u3067\u63a5\u7d9a\u3057\u3066\u3044\u307e\u3057\u305f\u3002Cisco\u30eb\u30fc\u30bf\u3067\u306f\u8907\u6570\u306e\u30b7\u30ea\u30a2\u30eb\u898f\u683c\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u304a\u308a\u3001\u5b9f\u969b\u306b\u4f7f\u7528\u3057\u3066\u3044\u308b\u898f\u683c\u306f\u6b21\u306e\u30b3\u30de\u30f3\u30c9\u3067\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Router# show controllers s0\/0\nInterface Serial 0\/0\nHardware is \u2026\nDTE V.35   \u2190 V.35\u898f\u683c\u3067\u3042\u308b\u3053\u3068\u3092\u78ba\u8a8d<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">Cisco\u30eb\u30fc\u30bf\u3067\u306e\u691c\u8a3c\u63a5\u7d9a\uff08\u30ec\u30ac\u30b7\u30fc\uff09<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u691c\u8a3c\u74b0\u5883\u3067\u306f\u3001\u30ad\u30e3\u30ea\u30a2\u3092\u4ecb\u3055\u305a\u306b2\u53f0\u306eCisco\u30eb\u30fc\u30bf\u3092\u76f4\u7d50\u3057\u3066WAN\u63a5\u7d9a\u3092\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u7528\u3044\u308b\u30b7\u30ea\u30a2\u30eb\u30b1\u30fc\u30d6\u30eb\u3092\u30d0\u30c3\u30af\u30c4\u30fc\u30d0\u30c3\u30af\u30b1\u30fc\u30d6\u30eb\u3068\u547c\u3073\u307e\u3059\u3002\u3053\u306e\u5834\u5408\u30011\u53f0\u304cDTE\u3001\u3082\u30461\u53f0\u304cDCE\u3068\u3057\u3066\u52d5\u4f5c\u3057\u3001DCE\u5074\u306f\u30af\u30ed\u30c3\u30af\u4fe1\u53f7\u3092\u4f9b\u7d66\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>R1(config)# interface s0\/0\nR1(config-if)# clock rate 64000<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u8a2d\u5b9a\u5f8c\u306b\u6b21\u306e\u3088\u3046\u306b\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>R1# show controllers s0\/0\nInterface Serial 0\/0\nDCE V.35, clock rate 64000<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u5e2f\u57df\u5e45\u306e\u8a2d\u5b9a<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">clock rate\u3067\u5b9a\u7fa9\u3057\u305f\u5024\u306f\u7269\u7406\u7684\u306a\u901a\u4fe1\u901f\u5ea6\u3067\u3059\u304c\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30d7\u30ed\u30c8\u30b3\u30eb\u306f\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u5e2f\u57df\u5e45\uff08BW\uff09\u3092\u57fa\u306b\u30e1\u30c8\u30ea\u30c3\u30af\u3092\u8a08\u7b97\u3057\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u6b63\u78ba\u306a\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u884c\u3046\u306b\u306f<code>bandwidth<\/code>\u30b3\u30de\u30f3\u30c9\u3067\u8abf\u6574\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>R1(config)# interface s0\/0\nR1(config-if)# bandwidth 64<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u78ba\u8a8d\u3059\u308b\u3068\u6b21\u306e\u3088\u3046\u306b\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>R1# show interfaces s0\/0\nSerial 0\/0 is up, line protocol is up\n  MTU 1500 bytes, BW 64 Kbit, DLY \u2026<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u3053\u3067\u6ce8\u610f\u3059\u3079\u304d\u306f\u3001bandwidth\u30b3\u30de\u30f3\u30c9\u306f\u5b9f\u969b\u306e\u901a\u4fe1\u901f\u5ea6\u3092\u5909\u3048\u308b\u3082\u306e\u3067\u306f\u306a\u304f\u3001\u30e1\u30c8\u30ea\u30c3\u30af\u8a08\u7b97\u306b\u4f7f\u3046\u8ad6\u7406\u7684\u306a\u5024\u3067\u3042\u308b\u3068\u3044\u3046\u70b9\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8a66\u9a13\u3067\u306f<strong><span class=\"swl-marker mark_yellow\">\u300cDTE\u3068DCE\u306e\u5f79\u5272\u306e\u9055\u3044\u300d\u300c\u8cac\u4efb\u5206\u89e3\u70b9\u300d\u300cclock rate\u3068bandwidth\u306e\u9055\u3044\u300d<\/span><\/strong>\u306a\u3069\u304c\u554f\u308f\u308c\u3084\u3059\u3044\u305f\u3081\u3001\u3057\u3063\u304b\u308a\u533a\u5225\u3057\u3066\u7406\u89e3\u3057\u3066\u304a\u304f\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">WAN\u56de\u7dda\u306e\u7a2e\u985e<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">WAN\u306e\u56de\u7dda\u30b5\u30fc\u30d3\u30b9\u306f\u5927\u304d\u304f\u300c\u5c02\u7528\u578b\u300d\u3068\u300c\u4ea4\u63db\u578b\u300d\u306b\u5206\u3051\u3089\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><span class=\"swl-marker mark_yellow\">\u5c02\u7528\u578b<\/span><\/strong>\u306f\u3001\u56de\u7dda\u3092\u4e38\u3054\u30681\u793e\u304c\u5360\u6709\u3059\u308b\u4ed5\u7d44\u307f\u3067\u3001\u5e38\u306b\u81ea\u793e\u5c02\u7528\u306e\u9053\u3092\u78ba\u4fdd\u3067\u304d\u308b\u30a4\u30e1\u30fc\u30b8\u3067\u3059\u3002<br><strong><span class=\"swl-marker mark_yellow\">\u4ea4\u63db\u578b<\/span><\/strong>\u306f\u3001\u8907\u6570\u306e\u5229\u7528\u8005\u304c\u540c\u3058\u9053\u3092\u9806\u756a\u306b\u4f7f\u3063\u305f\u308a\u3001\u5206\u3051\u5408\u3063\u305f\u308a\u3059\u308b\u65b9\u5f0f\u3067\u3059\u3002\u4ea4\u63db\u578b\u306e\u4e2d\u306b\u306f<strong><span class=\"swl-marker mark_yellow\">\u300c\u56de\u7dda\u4ea4\u63db\u65b9\u5f0f\u300d\u3068\u300c\u30d1\u30b1\u30c3\u30c8\u4ea4\u63db\u65b9\u5f0f\u300d<\/span><\/strong>\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u3048\u3070\u300c\u5c02\u7528\u578b\u300d\u306f\u6bce\u65e5\u81ea\u5206\u306e\u8eca\u7dda\u304c\u78ba\u4fdd\u3055\u308c\u305f\u9ad8\u901f\u9053\u8def\u3092\u8d70\u308c\u308b\u611f\u899a\u306b\u8fd1\u304f\u3001\u300c\u4ea4\u63db\u578b\u300d\u306f\u305d\u306e\u6642\u306b\u5fdc\u3058\u3066\u901a\u884c\u3067\u304d\u308b\u4e00\u822c\u9053\u306e\u3088\u3046\u306a\u30a4\u30e1\u30fc\u30b8\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ee5\u4e0b\u306b\u4ee3\u8868\u7684\u306aWAN\u56de\u7dda\u30b5\u30fc\u30d3\u30b9\u3092\u6574\u7406\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u56de\u7dda\u306e\u30bf\u30a4\u30d7<\/th><th>\u7279\u5fb4<\/th><th>WAN\u30b5\u30fc\u30d3\u30b9\u306e\u4f8b<\/th><th>\u4f7f\u7528\u30d7\u30ed\u30c8\u30b3\u30eb<\/th><\/tr><\/thead><tbody><tr><td>\u5c02\u7528\u578b<\/td><td>\u81ea\u793e\u5c02\u7528\u306e\u56de\u7dda\u30921\u5bfe1\u3067\u5229\u7528\u53ef\u80fd\u3002\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30fb\u4fe1\u983c\u6027\u304c\u9ad8\u3044\u304c\u30b3\u30b9\u30c8\u306f\u9ad8\u3081\u3002<\/td><td>\u5c02\u7528\u7dda<\/td><td>PPP, HDLC, Ethernet<\/td><\/tr><tr><td>\u4ea4\u63db\u578b\uff08\u56de\u7dda\u4ea4\u63db\uff09<\/td><td>\u901a\u4fe1\u6642\u3060\u3051\u56de\u7dda\u3092\u78ba\u4fdd\u3057\u3001\u7d42\u4e86\u5f8c\u306f\u5207\u65ad\u3002\u6599\u91d1\u306f\u5f93\u91cf\u5236\u3067\u901f\u5ea6\u3082\u9045\u3081\u3002<\/td><td>PSTN, ISDN<\/td><td>PPP, HDLC<\/td><\/tr><tr><td>\u4ea4\u63db\u578b\uff08\u30d1\u30b1\u30c3\u30c8\u4ea4\u63db\uff09<\/td><td>1\u672c\u306e\u56de\u7dda\u3092\u8907\u6570\u30e6\u30fc\u30b6\u3067\u4eee\u60f3\u7684\u306b\u5206\u5272\u3002\u30b3\u30b9\u30c8\u306f\u5b89\u3081\u3067\u901f\u5ea6\u30fb\u4fe1\u983c\u6027\u3082\u78ba\u4fdd\u3002<\/td><td>\u30d5\u30ec\u30fc\u30e0\u30ea\u30ec\u30fc, ATM, IP-VPN, \u5e83\u57df\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8<\/td><td>Frame Relay, ATM, IP, Ethernet<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u8a66\u9a13\u306e\u30dd\u30a4\u30f3\u30c8\u3068\u3057\u3066\u306f\u3001\u300c\u5c02\u7528\u578b\u306f\u30b3\u30b9\u30c8\u9ad8\u3060\u304c\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u304c\u5f37\u3044\u300d\u300c\u56de\u7dda\u4ea4\u63db\u306f\u53e4\u304f\u901f\u5ea6\u304c\u4f4e\u3044\u300d\u300c\u30d1\u30b1\u30c3\u30c8\u4ea4\u63db\u306f\u305d\u306e\u4e2d\u9593\u3067\u52b9\u7387\u7684\u300d\u3068\u3044\u3046\u95a2\u4fc2\u6027\u3092\u62bc\u3055\u3048\u3066\u304a\u304f\u3068\u554f\u984c\u306b\u5bfe\u5fdc\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">WAN\u56de\u7dda\u30b5\u30fc\u30d3\u30b9\uff1a\u5c02\u7528\u7dda<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><span class=\"swl-marker mark_yellow\">\u5c02\u7528\u7dda<\/span><\/strong>\u306f\u4f01\u696d\u304c\u901a\u4fe1\u4e8b\u696d\u8005\u3068\u5951\u7d04\u3057\u3001\u62e0\u70b9\u9593\u30921\u5bfe1\u3067\u7d50\u3076\u305f\u3081\u306e\u56de\u7dda\u3067\u3059\u3002\u5229\u7528\u8005\u4ee5\u5916\u306f\u305d\u306e\u56de\u7dda\u3092\u4f7f\u3048\u306a\u3044\u305f\u3081\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u304c\u5f37\u304f\u3001\u901a\u4fe1\u901f\u5ea6\u3082\u5e38\u306b\u4fdd\u8a3c\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6599\u91d1\u306f\u6708\u984d\u306e\u5b9a\u984d\u5236\u3067\u3059\u304c\u3001\u62e0\u70b9\u9593\u306e\u8ddd\u96e2\u304c\u9577\u3044\u307b\u3069\u3001\u307e\u305f\u901a\u4fe1\u901f\u5ea6\u3084\u62e0\u70b9\u6570\u304c\u591a\u3044\u307b\u3069\u9ad8\u984d\u306b\u306a\u308a\u307e\u3059\u3002\u8a66\u9a13\u5bfe\u7b56\u3068\u3057\u3066\u306f\u300c\u5c02\u7528\u7dda\uff1d\u901f\u5ea6\u4fdd\u8a3c\u30fb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4fdd\u8a3c\u30fb\u9ad8\u30b3\u30b9\u30c8\u300d\u3068\u3044\u30463\u70b9\u30bb\u30c3\u30c8\u3067\u899a\u3048\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">WAN\u56de\u7dda\u30b5\u30fc\u30d3\u30b9\uff1aPSTN<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><span class=\"swl-marker mark_yellow\">PSTN<\/span><\/strong>\u306f\u300c\u516c\u8846\u96fb\u8a71\u7db2\u300d\u3092\u5229\u7528\u3057\u305f\u30b5\u30fc\u30d3\u30b9\u3067\u3059\u3002\u96fb\u8a71\u3092\u304b\u3051\u308b\u6642\u3068\u540c\u3058\u3088\u3046\u306b\u3001\u901a\u4fe1\u3092\u59cb\u3081\u308b\u3068\u304d\u306b\u56de\u7dda\u3092\u78ba\u7acb\u3057\u3001\u7d42\u4e86\u3059\u308b\u3068\u5207\u65ad\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6599\u91d1\u306f\u300c\u8ddd\u96e2\u300d\u3068\u300c\u6642\u9593\u300d\u306b\u5fdc\u3058\u3066\u8ab2\u91d1\u3055\u308c\u308b\u5f93\u91cf\u5236\u3067\u3059\u3002\u30c7\u30fc\u30bf\u901a\u4fe1\u3092\u884c\u3046\u5834\u5408\u306f\u3001PC\u3084\u30eb\u30fc\u30bf\u3092\u30e2\u30c7\u30e0\u306b\u63a5\u7d9a\u3057\u3066\u76f8\u624b\u5148\u306b\u30c0\u30a4\u30e4\u30eb\u30a2\u30c3\u30d7\u3059\u308b\u65b9\u5f0f\u304c\u53d6\u3089\u308c\u3066\u3044\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u901a\u4fe1\u901f\u5ea6\u306f\u6700\u5927\u306756kbps\u3068\u975e\u5e38\u306b\u4f4e\u304f\u3001\u3055\u3089\u306b\u63a5\u7d9a\u958b\u59cb\u306b\u3082\u6642\u9593\u304c\u304b\u304b\u308b\u305f\u3081\u3001\u73fe\u5728\u3067\u306fWAN\u56de\u7dda\u3068\u3057\u3066\u306e\u5229\u7528\u306f\u307b\u307c\u3042\u308a\u307e\u305b\u3093\u3002\u305f\u3060\u3057\u6614\u306f\u5916\u51fa\u5148\u304b\u3089\u4f1a\u793e\u3078\u30c0\u30a4\u30e4\u30eb\u30a2\u30c3\u30d7\u3057\u3066\u30e1\u30fc\u30eb\u9001\u53d7\u4fe1\u3092\u884c\u3046\u306a\u3069\u3001\u30ea\u30e2\u30fc\u30c8\u30a2\u30af\u30bb\u30b9\u624b\u6bb5\u3068\u3057\u3066\u5e83\u304f\u5229\u7528\u3055\u308c\u3066\u3044\u307e\u3057\u305f\u3002\u4eca\u3067\u3082\u307e\u308c\u306b\u6a5f\u5668\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u7528\u306e\u7c21\u6613\u63a5\u7d9a\u306a\u3069\u3067\u5229\u7528\u3055\u308c\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">WAN\u56de\u7dda\u30b5\u30fc\u30d3\u30b9\uff1aISDN<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><span class=\"swl-marker mark_yellow\">ISDN<\/span><\/strong>\u306f\u97f3\u58f0\u3068\u30c7\u30fc\u30bf\u3092\u307e\u3068\u3081\u3066\u6271\u3048\u308b\u56de\u7dda\u30b5\u30fc\u30d3\u30b9\u3067\u3059\u3002\u4ed5\u7d44\u307f\u306fPSTN\u3068\u4f3c\u3066\u304a\u308a\u3001\u901a\u4fe1\u3092\u59cb\u3081\u308b\u3068\u304d\u306b\u56de\u7dda\u3092\u78ba\u4fdd\u3057\u3001\u7d42\u308f\u308c\u3070\u89e3\u653e\u3055\u308c\u307e\u3059\u3002\u3053\u3061\u3089\u3082\u5f93\u91cf\u8ab2\u91d1\u5236\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">ISDN\u306e\u7279\u5fb4\u306f\u300c1\u3064\u306e\u7269\u7406\u56de\u7dda\u306b\u8907\u6570\u306e\u8ad6\u7406\u30c1\u30e3\u30cd\u30eb\u304c\u3042\u308b\u300d\u3068\u3044\u3046\u70b9\u3067\u3059\u3002\u4e3b\u306a\u30c1\u30e3\u30cd\u30eb\u306f\u6b21\u306e2\u7a2e\u985e\u3067\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u30c1\u30e3\u30cd\u30eb<\/th><th>\u5f79\u5272<\/th><\/tr><\/thead><tbody><tr><td>B\u30c1\u30e3\u30cd\u30eb<\/td><td>\u30c7\u30fc\u30bf\u3084\u97f3\u58f0\u306e\u9001\u53d7\u4fe1\u306b\u4f7f\u3046\u901a\u4fe1\u30c1\u30e3\u30cd\u30eb<\/td><\/tr><tr><td>D\u30c1\u30e3\u30cd\u30eb<\/td><td>\u63a5\u7d9a\u306e\u78ba\u7acb\u3084\u5207\u65ad\u306a\u3069\u5236\u5fa1\u4fe1\u53f7\u3092\u6d41\u3059\u30c1\u30e3\u30cd\u30eb<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u3055\u3089\u306b\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u898f\u683c\u3068\u3057\u3066BRI\u3068PRI\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u898f\u683c<\/th><th>\u5185\u5bb9<\/th><\/tr><\/thead><tbody><tr><td>BRI\uff08\u57fa\u672c\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\uff09<\/td><td>64kbps\u306eB\u30c1\u30e3\u30cd\u30eb\u304c2\u672c\u300116kbps\u306eD\u30c1\u30e3\u30cd\u30eb\u304c1\u672c\u3002B\u30c1\u30e3\u30cd\u30eb\u3092\u675f\u306d\u308c\u3070128kbps\u901a\u4fe1\u3082\u53ef\u80fd\u3002<\/td><\/tr><tr><td>PRI\uff08\u4e00\u6b21\u7fa4\u901f\u5ea6\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\uff09<\/td><td>64kbps\u306eB\u30c1\u30e3\u30cd\u30eb\u304c23\u672c\u3001D\u30c1\u30e3\u30cd\u30eb\u304c1\u672c\u3002\u6700\u5927\u30671.544Mbps\u306e\u901a\u4fe1\u304c\u53ef\u80fd\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">ISDN\u306f\u304b\u3064\u3066\u300c\u5c02\u7528\u7dda\u3088\u308a\u5b89\u4fa1\u3067\u3001PSTN\u3088\u308a\u9ad8\u901f\u300d\u3068\u3044\u3046\u7acb\u3061\u4f4d\u7f6e\u3067\u3088\u304f\u4f7f\u308f\u308c\u3066\u3044\u307e\u3057\u305f\u304c\u3001\u73fe\u5728\u306f\u30d6\u30ed\u30fc\u30c9\u30d0\u30f3\u30c9\u3084VPN\u306e\u666e\u53ca\u306b\u3088\u308aWAN\u56de\u7dda\u3068\u3057\u3066\u306e\u5229\u7528\u306f\u6e1b\u5c11\u3057\u3066\u3044\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u969c\u5bb3\u6642\u306e\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u56de\u7dda\u3068\u3057\u3066\u5c0e\u5165\u3055\u308c\u308b\u30b1\u30fc\u30b9\u3082\u3042\u308b\u305f\u3081\u3001\u8a66\u9a13\u3067\u306f\u307e\u3060\u554f\u308f\u308c\u3084\u3059\u3044\u5206\u91ce\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><span class=\"swl-marker mark_yellow\">\u300cB\u30c1\u30e3\u30cd\u30eb\uff1d\u30c7\u30fc\u30bf\u7528\u3001D\u30c1\u30e3\u30cd\u30eb\uff1d\u5236\u5fa1\u7528\u300d\u300cBRI\uff1d2B+D\u300d\u300cPRI\uff1d23B+D\u300d<\/span><\/strong>\u3068\u3044\u3046\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u78ba\u5b9f\u306b\u62bc\u3055\u3048\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">WAN\u306e\u56de\u7dda\u30bf\u30a4\u30d7\uff1a\u30d1\u30b1\u30c3\u30c8\u4ea4\u63db<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><span class=\"swl-marker mark_yellow\">\u30d1\u30b1\u30c3\u30c8\u4ea4\u63db\u65b9\u5f0f<\/span><\/strong>\u306eWAN\u3067\u306f\u3001\u30c7\u30fc\u30bf\u3092\u5c0f\u3055\u306a\u5358\u4f4d\uff08\u30d1\u30b1\u30c3\u30c8\uff09\u306b\u5206\u5272\u3057\u3001\u305d\u308c\u305e\u308c\u306b\u5b9b\u5148\u3092\u793a\u3059\u8b58\u5225\u60c5\u5831\u3092\u4ed8\u3051\u3066\u30ad\u30e3\u30ea\u30a2\u7db2\u3092\u901a\u904e\u3055\u305b\u307e\u3059\u3002\u5404\u30d1\u30b1\u30c3\u30c8\u306f\u72ec\u7acb\u3057\u3066\u9001\u3089\u308c\u308b\u305f\u3081\u3001\u540c\u3058\u56de\u7dda\u3092\u8907\u6570\u306e\u30e6\u30fc\u30b6\u304c\u5171\u6709\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u4ed5\u7d44\u307f\u306f\u9053\u8def\u306b\u4f8b\u3048\u308b\u3068\u3001\u30c8\u30e9\u30c3\u30af\u304c\u8377\u7269\u3092\u7d30\u304b\u304f\u5c0f\u5305\u306b\u5206\u3051\u3066\u8f38\u9001\u3059\u308b\u30a4\u30e1\u30fc\u30b8\u306b\u8fd1\u3044\u3067\u3059\u3002\u5c0f\u5305\u306b\u306f\u300c\u5c4a\u3051\u5148\u306e\u4f4f\u6240\uff08\u5b9b\u5148\u60c5\u5831\uff09\u300d\u304c\u66f8\u304b\u308c\u3066\u3044\u308b\u305f\u3081\u3001\u6700\u7d42\u7684\u306b\u6b63\u3057\u3044\u76f8\u624b\u306b\u5c4a\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u305f\u3060\u3057\u3001\u56de\u7dda\u3092\u5e38\u306b\u5360\u6709\u3057\u3066\u3044\u308b\u308f\u3051\u3067\u306f\u306a\u3044\u305f\u3081\u3001\u5229\u7528\u8005\u304c\u5897\u3048\u308b\u3068\u6df7\u96d1\uff08\u8f3b\u8f33\uff09\u304c\u8d77\u3053\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u73fe\u5728\u4e3b\u6d41\u306eIP-VPN\u3084\u5e83\u57df\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u3067\u306f\u30ad\u30e3\u30ea\u30a2\u7db2\u306e\u30d0\u30c3\u30af\u30dc\u30fc\u30f3\u304c\u975e\u5e38\u306b\u9ad8\u901f\u3067\u5927\u5bb9\u91cf\u306e\u305f\u3081\u3001\u5b9f\u8cea\u7684\u306b\u306f\u5951\u7d04\u3057\u305f\u5e2f\u57df\u304c\u4fdd\u8a3c\u3055\u308c\u307e\u3059\u3002\u56de\u7dda\u4ea4\u63db\u65b9\u5f0f\u306e\u3088\u3046\u306a\u30b3\u30fc\u30eb\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u306f\u4e0d\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">WAN\u306e\u56de\u7dda\u30b5\u30fc\u30d3\u30b9\uff1a\u30d5\u30ec\u30fc\u30e0\u30ea\u30ec\u30fc<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><span class=\"swl-marker mark_yellow\">\u30d5\u30ec\u30fc\u30e0\u30ea\u30ec\u30fc<\/span><\/strong>\u306f\u3001\u304b\u3064\u3066\u5e83\u304f\u4f7f\u308f\u308c\u3066\u3044\u305f\u30d1\u30b1\u30c3\u30c8\u4ea4\u63db\u578bWAN\u30b5\u30fc\u30d3\u30b9\u3067\u3059\u3002X.25\u304b\u3089\u30a8\u30e9\u30fc\u8a02\u6b63\u6a5f\u80fd\u3092\u53d6\u308a\u9664\u304d\u3001\u9ad8\u901f\u5316\u3092\u5b9f\u73fe\u3057\u305f\u3082\u306e\u3067\u3059\u3002\u8aa4\u308a\u5236\u5fa1\u306f\u884c\u308f\u305a\u3001\u3042\u304f\u307e\u3067\u9ad8\u901f\u306a\u30d5\u30ec\u30fc\u30e0\u8ee2\u9001\u306b\u7279\u5316\u3057\u3066\u3044\u307e\u3059\u30021\u672c\u306e\u7269\u7406\u56de\u7dda\u4e0a\u3067\u8907\u6570\u306e\u4eee\u60f3\u56de\u7dda\uff08VC\uff09\u3092\u4f5c\u308a\u3001\u8907\u6570\u62e0\u70b9\u3068\u540c\u6642\u306b\u901a\u4fe1\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">VC\u306b\u306f\u6b21\u306e2\u7a2e\u985e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><span class=\"swl-marker mark_yellow\">PVC\uff08Permanent Virtual Circuit\uff09<\/span><\/strong>\uff1a\u5951\u7d04\u6642\u306b\u56fa\u5b9a\u3055\u308c\u305f\u76f8\u624b\u5148\u3068\u5e38\u6642\u63a5\u7d9a\u3059\u308b\u65b9\u5f0f\u3002<\/li>\n\n\n\n<li><strong><span class=\"swl-marker mark_yellow\">SVC\uff08Switched Virtual Circuit\uff09<\/span><\/strong>\uff1a\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u52d5\u7684\u306b\u63a5\u7d9a\u3057\u3001\u901a\u4fe1\u7d42\u4e86\u5f8c\u306b\u5207\u65ad\u3059\u308b\u65b9\u5f0f\u3002\u305f\u3060\u3057\u65e5\u672c\u3067\u306f\u307b\u307c\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u305a\u3001PVC\u304c\u4e00\u822c\u7684\u3067\u3057\u305f\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u73fe\u5728\u30d5\u30ec\u30fc\u30e0\u30ea\u30ec\u30fc\u306f\u307b\u3068\u3093\u3069\u5229\u7528\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u3002\u591a\u304f\u306e\u4f01\u696d\u306fIP-VPN\u3084\u5e83\u57df\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u306b\u79fb\u884c\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30d5\u30ec\u30fc\u30e0\u30ea\u30ec\u30fc\u3067\u91cd\u8981\u306a\u7528\u8a9e<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u8a66\u9a13\u3067\u554f\u308f\u308c\u3084\u3059\u3044\u7528\u8a9e\u3092\u6574\u7406\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u7528\u8a9e<\/th><th>\u8aac\u660e<\/th><\/tr><\/thead><tbody><tr><td>PVC<\/td><td>Permanent Virtual Circuit\u3002\u56fa\u5b9a\u7684\u306b\u63a5\u7d9a\u3059\u308b\u4eee\u60f3\u56de\u7dda\u3002<\/td><\/tr><tr><td>SVC<\/td><td>Switched Virtual Circuit\u3002\u4e00\u6642\u7684\u306b\u63a5\u7d9a\u3059\u308b\u4eee\u60f3\u56de\u7dda\u3002<\/td><\/tr><tr><td>DLCI<\/td><td>\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u63a5\u7d9a\u8b58\u5225\u5b50\u3002\u30d5\u30ec\u30fc\u30e0\u30ea\u30ec\u30fc\u30d8\u30c3\u30c0\u5185\u306e\u756a\u53f7\u3067VC\u3092\u8b58\u5225\u3002\u30ed\u30fc\u30ab\u30eb\u306eFR\u30b9\u30a4\u30c3\u30c1\u9593\u306e\u307f\u3067\u610f\u5473\u3092\u6301\u3064\u3002<\/td><\/tr><tr><td>Inverse ARP<\/td><td>DLCI\u3068\u5b9b\u5148IP\u3092\u81ea\u52d5\u7684\u306b\u95a2\u9023\u4ed8\u3051\u308b\u4ed5\u7d44\u307f\u3002<\/td><\/tr><tr><td>LMI<\/td><td>Local Management Interface\u3002\u30eb\u30fc\u30bf\u3068FR\u30b9\u30a4\u30c3\u30c1\u9593\u3067\u72b6\u614b\u3092\u3084\u308a\u53d6\u308a\u3059\u308b\u30b7\u30b0\u30ca\u30ea\u30f3\u30b0\u3002cisco\u3001ansi\u3001q933a\u306e3\u7a2e\u985e\u3002<\/td><\/tr><tr><td>\u30ed\u30fc\u30ab\u30eb\u30a2\u30af\u30bb\u30b9\u30ec\u30fc\u30c8<\/td><td>\u30eb\u30fc\u30bf\u3068FR\u30b9\u30a4\u30c3\u30c1\u9593\u306e\u7269\u7406\u56de\u7dda\u901f\u5ea6\u3002<\/td><\/tr><tr><td>CIR<\/td><td>Committed Information Rate\u3002PVC\u3054\u3068\u306b\u5951\u7d04\u3067\u4fdd\u8a3c\u3055\u308c\u308b\u6700\u4f4e\u901f\u5ea6\u3002<\/td><\/tr><tr><td>FECN<\/td><td>Forward Explicit Congestion Notification\u3002\u8f3b\u8f33\u3092\u5b9b\u5148\u306b\u901a\u77e5\u3059\u308b\u4ed5\u7d44\u307f\u3002<\/td><\/tr><tr><td>BECN<\/td><td>Backward Explicit Congestion Notification\u3002\u8f3b\u8f33\u3092\u9001\u4fe1\u5143\u306b\u901a\u77e5\u3059\u308b\u4ed5\u7d44\u307f\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u307e\u305f\u3001LMI\u306b\u306f\u300cActive\u300d\u300cInactive\u300d\u300cDeleted\u300d\u306e3\u3064\u306e\u30b9\u30c6\u30fc\u30bf\u30b9\u304c\u3042\u308a\u3001\u901a\u4fe1\u72b6\u614b\u3092\u5224\u65ad\u3059\u308b\u305f\u3081\u8a66\u9a13\u3067\u3082\u3088\u304f\u51fa\u984c\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Active\uff1a\u6b63\u5e38\u306b\u901a\u4fe1\u53ef\u80fd<\/li>\n\n\n\n<li>Inactive\uff1a\u30ed\u30fc\u30ab\u30eb\u5074\u306f\u6b63\u5e38\u3060\u304c\u76f8\u624b\u5074\u306b\u554f\u984c\u3042\u308a<\/li>\n\n\n\n<li>Deleted\uff1a\u30ed\u30fc\u30ab\u30eb\u3068FR\u30b9\u30a4\u30c3\u30c1\u9593\u306b\u554f\u984c\u3042\u308a<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u8a66\u9a13\u5bfe\u7b56\u3068\u3057\u3066\u306f\u3001<strong><span class=\"swl-marker mark_yellow\">\u300cDLCI\uff1d\u4eee\u60f3\u56de\u7dda\u306e\u8b58\u5225\u756a\u53f7\u300d\u300cFECN\uff1d\u5b9b\u5148\u901a\u77e5\u300d\u300cBECN\uff1d\u9001\u4fe1\u5143\u901a\u77e5\u300d<\/span><\/strong>\u306e\u3088\u3046\u306b\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u77ed\u304f\u6574\u7406\u3059\u308b\u3068\u899a\u3048\u3084\u3059\u3044\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">WAN\u306e\u56de\u7dda\u30b5\u30fc\u30d3\u30b9\uff1aATM\uff08\u30bb\u30eb\u30ea\u30ec\u30fc\uff09<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><span class=\"swl-marker mark_yellow\">ATM\uff08Asynchronous Transfer Mode\uff09<\/span><\/strong>\u306f\u3001\u30d5\u30ec\u30fc\u30e0\u30ea\u30ec\u30fc\u3068\u540c\u69d8\u306b\u4eee\u60f3\u56de\u7dda\u3092\u5229\u7528\u3059\u308bWAN\u30b5\u30fc\u30d3\u30b9\u3067\u3059\u304c\u3001\u7279\u5fb4\u306f\u30c7\u30fc\u30bf\u3092<strong><span class=\"swl-marker mark_yellow\">53\u30d0\u30a4\u30c8\u56fa\u5b9a\u9577\u306e\u30bb\u30eb<\/span><\/strong>\u306b\u5206\u5272\u3057\u3066\u9001\u4fe1\u3059\u308b\u70b9\u3067\u3059\u3002\u56fa\u5b9a\u9577\u306b\u3059\u308b\u3053\u3068\u3067\u9045\u5ef6\u304c\u5b89\u5b9a\u3057\u3001\u97f3\u58f0\u3084\u52d5\u753b\u306a\u3069\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u6027\u3092\u6c42\u3081\u3089\u308c\u308b\u901a\u4fe1\u306b\u9069\u3057\u3066\u3044\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">ATM\u30bb\u30eb\u306f <strong><span class=\"swl-marker mark_yellow\">5\u30d0\u30a4\u30c8\u306e\u30d8\u30c3\u30c0\uff0b48\u30d0\u30a4\u30c8\u306e\u30c7\u30fc\u30bf<\/span><\/strong> \u3067\u69cb\u6210\u3055\u308c\u3001\u30d8\u30c3\u30c0\u5185\u306e\u60c5\u5831\u3067\u5b9b\u5148\u3092\u8b58\u5225\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">ATM\u30bb\u30eb\u306e\u30d8\u30c3\u30c0\u5185\u5bb9<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u30d5\u30a3\u30fc\u30eb\u30c9<\/th><th>\u30d3\u30c3\u30c8\u6570<\/th><th>\u8aac\u660e<\/th><\/tr><\/thead><tbody><tr><td>GFC<\/td><td>4<\/td><td>\u30d5\u30ed\u30fc\u5236\u5fa1\u3084\u30b9\u30c6\u30fc\u30b7\u30e7\u30f3\u8b58\u5225<\/td><\/tr><tr><td>VPI<\/td><td>8<\/td><td>\u4eee\u60f3\u30d1\u30b9\u8b58\u5225\u5b50<\/td><\/tr><tr><td>VCI<\/td><td>16<\/td><td>\u4eee\u60f3\u30c1\u30e3\u30cd\u30eb\u8b58\u5225\u5b50<\/td><\/tr><tr><td>PT<\/td><td>3<\/td><td>\u30c7\u30fc\u30bf\u306e\u7a2e\u985e\u3084\u8f3b\u8f33\u72b6\u614b\u3092\u793a\u3059<\/td><\/tr><tr><td>CLP<\/td><td>1<\/td><td>\u8f3b\u8f33\u6642\u306b\u30bb\u30eb\u3092\u7834\u68c4\u3059\u308b\u512a\u5148\u5ea6<\/td><\/tr><tr><td>HEC<\/td><td>8<\/td><td>\u30d8\u30c3\u30c0\u306e\u30a8\u30e9\u30fc\u30c1\u30a7\u30c3\u30af<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">ATM\u306e\u4ed5\u7d44\u307f\u306f3\u3064\u306e\u5c64\u306b\u5206\u304b\u308c\u3066\u304a\u308a\u3001\u4e0a\u4f4d\u30c7\u30fc\u30bf\u309248\u30d0\u30a4\u30c8\u306b\u5206\u5272\u30fb\u518d\u69cb\u7bc9\u3059\u308b<strong><span class=\"swl-marker mark_yellow\">AAL\u5c64<\/span><\/strong>\u3001\u30bb\u30eb\u3092\u751f\u6210\u3059\u308b<strong><span class=\"swl-marker mark_yellow\">ATM\u5c64<\/span><\/strong>\u3001\u7269\u7406\u56de\u7dda\u306b\u9001\u308b<strong><span class=\"swl-marker mark_yellow\">ATM\u7269\u7406\u5c64<\/span><\/strong>\u3067\u69cb\u6210\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">AAL\uff08ATM Adaptation Layer\uff09\u306b\u306f\u4ee5\u4e0b\u306e\u7a2e\u985e\u304c\u3042\u308a\u3001\u8a66\u9a13\u3067\u306f\u7279\u306bAAL5\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>AAL\u306e\u7a2e\u985e<\/th><th>\u7279\u5fb4<\/th><\/tr><\/thead><tbody><tr><td>AAL1<\/td><td>\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u578b\u3002\u52d5\u753b\u914d\u4fe1\u7528\u3002<\/td><\/tr><tr><td>AAL2<\/td><td>\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u578b\u3002\u97f3\u58f0\u901a\u4fe1\u5411\u3051\u3002<\/td><\/tr><tr><td>AAL3\/4<\/td><td>\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u30ec\u30b9\u578b\u3002\u30c7\u30fc\u30bf\u901a\u4fe1\u5411\u3051\u3002<\/td><\/tr><tr><td>AAL5<\/td><td>AAL3\/4\u3092\u7c21\u7565\u5316\u3002Ethernet over ATM\u3001IP over ATM \u306a\u3069\u3067\u5229\u7528\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u73fe\u5728\u3001ATM\u306f\u4f01\u696dWAN\u3068\u3057\u3066\u307b\u3068\u3093\u3069\u5229\u7528\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u304c\u3001\u30ad\u30e3\u30ea\u30a2\u306e\u30d0\u30c3\u30af\u30dc\u30fc\u30f3\u6280\u8853\u3068\u3057\u3066\u306f\u4e00\u90e8\u3067\u4f7f\u308f\u308c\u3066\u3044\u305f\u6b74\u53f2\u304c\u3042\u308a\u3001\u8a66\u9a13\u3067\u306f<span class=\"swl-marker mark_yellow\"><strong>\u300c53\u30d0\u30a4\u30c8\u56fa\u5b9a\u9577\u30bb\u30eb\u300d\u300cVPI\u3068VCI\u3067\u8b58\u5225\u300d\u300cAAL5\u304c\u4e3b\u6d41\u300d<\/strong><\/span>\u3068\u3044\u3063\u305f\u7279\u5fb4\u3092\u899a\u3048\u3066\u304a\u304f\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">WAN\u306e\u56de\u7dda\u30b5\u30fc\u30d3\u30b9\uff1aIP-VPN<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><span class=\"swl-marker mark_yellow\"><strong>IP-VPN<\/strong><\/span>\u306f\u3001\u73fe\u5728\u3082\u3063\u3068\u3082\u591a\u304f\u306e\u4f01\u696d\u3067\u5229\u7528\u3055\u308c\u3066\u3044\u308b\u4ee3\u8868\u7684\u306aWAN\u30b5\u30fc\u30d3\u30b9\u3067\u3059\u3002\u30ad\u30e3\u30ea\u30a2\u306eIP\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u8907\u6570\u306e\u4f01\u696d\u3067\u5171\u6709\u3057\u3064\u3064\u3001MPLS\uff08Multi-Protocol Label Switching\uff09\u3068\u3044\u3046\u6280\u8853\u3067\u4f01\u696d\u3054\u3068\u306e\u901a\u4fe1\u3092\u5206\u96e2\u3057\u307e\u3059\u3002\u4ed5\u7d44\u307f\u3068\u3057\u3066\u306f\u30d5\u30ec\u30fc\u30e0\u30ea\u30ec\u30fc\u3084ATM\u3068\u4f3c\u3066\u304a\u308a\u300c1\u3064\u306e\u7db2\u3092\u5171\u6709\u3059\u308b\u300d\u8003\u3048\u65b9\u3067\u3059\u304c\u3001\u30ad\u30e3\u30ea\u30a2\u306e\u30d0\u30c3\u30af\u30dc\u30fc\u30f3\u304c\u975e\u5e38\u306b\u5927\u5bb9\u91cf\u3067\u3042\u308b\u305f\u3081\u3001\u8f3b\u8f33\u304c\u8d77\u304d\u306b\u304f\u304f\u5b89\u5b9a\u3057\u3066\u5229\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">IP-VPN\u3067\u306f\u5229\u7528\u3067\u304d\u308b\u30ec\u30a4\u30e43\u30d7\u30ed\u30c8\u30b3\u30eb\u304cIP\u306b\u9650\u3089\u308c\u307e\u3059\u304c\u3001\u4eca\u65e5\u306e\u4f01\u696d\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306fIP\u304c\u4e3b\u6d41\u306a\u306e\u3067\u7279\u306b\u5236\u7d04\u3068\u306f\u306a\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">IP-VPN\u306e\u4ed5\u7d44\u307f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5229\u7528\u8005\u5074\u306e\u30eb\u30fc\u30bf\u306f\u3001\u30ad\u30e3\u30ea\u30a2\u7db2\u5185\u3067\u4f7f\u308f\u308c\u308bMPLS\u3092\u610f\u8b58\u3059\u308b\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u4f01\u696d\u306e\u30eb\u30fc\u30bf\uff08CE\uff1aCustomer Edge\uff09\u306f\u3001\u30ad\u30e3\u30ea\u30a2\u306e\u30eb\u30fc\u30bf\uff08PE\uff1aProvider Edge\uff09\u3078\u30c7\u30d5\u30a9\u30eb\u30c8\u30eb\u30fc\u30c8\u3092\u8a2d\u5b9a\u3059\u308b\u304b\u3001BGP\u3092\u5229\u7528\u3057\u3066\u52d5\u7684\u306b\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u60c5\u5831\u3092\u4ea4\u63db\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u30ad\u30e3\u30ea\u30a2\u7db2\u5185\u3067\u306f\u3001PE\u30eb\u30fc\u30bf\u304c\u53d7\u4fe1\u3057\u305f\u30d1\u30b1\u30c3\u30c8\u306bMPLS\u30e9\u30d9\u30eb\u3092\u4ed8\u4e0e\u3057\u3001\u9014\u4e2d\u306e\u30eb\u30fc\u30bf\uff08LSR\uff1aLabel Switching Router\uff09\u304c\u30e9\u30d9\u30eb\u3092\u4ed8\u3051\u66ff\u3048\u306a\u304c\u3089\u8ee2\u9001\u3057\u3066\u3044\u304d\u307e\u3059\u3002\u305d\u3057\u3066\u6700\u7d42\u7684\u306b\u5b9b\u5148\u306ePE\u30eb\u30fc\u30bf\u3067\u30e9\u30d9\u30eb\u304c\u5916\u3055\u308c\u3001\u4f01\u696d\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u30d1\u30b1\u30c3\u30c8\u304c\u5c4a\u3051\u3089\u308c\u307e\u3059\u3002\u3053\u306e\u305f\u3081\u3001\u4ed6\u793e\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u304c\u6df7\u3056\u308b\u3053\u3068\u306a\u304f\u5b89\u5168\u306b\u901a\u4fe1\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u307e\u305f\u3001\u30a2\u30af\u30bb\u30b9\u56de\u7dda\u90e8\u5206\u306f\u5c02\u7528\u7dda\u3084FR\u3001ATM\u3001Ethernet\u3001FTTH\u3001ADSL\u306a\u3069\u304b\u3089\u9078\u629e\u3067\u304d\u3001\u5bfe\u5411\u62e0\u70b9\u3068\u540c\u3058\u65b9\u5f0f\u3067\u3042\u308b\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">MPLS\u306e\u4ed5\u7d44\u307f\u3068\u7528\u8a9e<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">MPLS\u3067\u306f\u3001\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u30d8\u30c3\u30c0\u3068IP\u30d8\u30c3\u30c0\u306e\u9593\u306b4\u30d0\u30a4\u30c8\u306e\u300c\u30e9\u30d9\u30eb\u300d\u3092\u633f\u5165\u3057\u3001\u3053\u306e\u30e9\u30d9\u30eb\u306b\u57fa\u3065\u3044\u3066\u30d1\u30b1\u30c3\u30c8\u3092\u8ee2\u9001\u3057\u307e\u3059\u3002IP\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\uff0820\u30d0\u30a4\u30c8\u306e\u30d8\u30c3\u30c0\u3092\u53c2\u7167\uff09\u3088\u308a\u3082\u9ad8\u901f\u306b\u8ee2\u9001\u3067\u304d\u308b\u70b9\u304c\u7279\u5fb4\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u30ad\u30e3\u30ea\u30a2\u7db2\u5185\u3067\u306f\u4ee5\u4e0b\u306e\u8981\u7d20\u304c\u91cd\u8981\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u7528\u8a9e<\/th><th>\u8aac\u660e<\/th><\/tr><\/thead><tbody><tr><td><strong>LER\uff08Label Edge Router\uff09<\/strong><\/td><td>MPLS\u7db2\u306e\u5165\u308a\u53e3\u30fb\u51fa\u53e3\u306b\u3042\u308bPE\u30eb\u30fc\u30bf\u3002\u30e9\u30d9\u30eb\u306e\u4ed8\u4e0e\u30fb\u524a\u9664\u3092\u62c5\u5f53\u3002<\/td><\/tr><tr><td><strong>LSR\uff08Label Switching Router\uff09<\/strong><\/td><td>MPLS\u7db2\u306e\u4e2d\u7d99\u30eb\u30fc\u30bf\u3002\u30e9\u30d9\u30eb\u3092\u898b\u3066\u8ee2\u9001\u5148\u3092\u6c7a\u3081\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u30e9\u30d9\u30eb\u3092\u4ed8\u3051\u66ff\u3048\u308b\u3002P\u30eb\u30fc\u30bf\u3068\u3082\u547c\u3070\u308c\u308b\u3002<\/td><\/tr><tr><td><strong>\u30e9\u30d9\u30eb\u914d\u5e03\u30d7\u30ed\u30c8\u30b3\u30eb<\/strong><\/td><td>\u5404\u30eb\u30fc\u30bf\u9593\u3067\u30e9\u30d9\u30eb\u60c5\u5831\u3092\u5171\u6709\u3059\u308b\u30d7\u30ed\u30c8\u30b3\u30eb\u3002LDP\u3001TDP\u3001RSVP\u3001BGP\u306a\u3069\u304c\u3042\u308b\u3002<\/td><\/tr><tr><td><strong>FEC\uff08Forwarding Equivalence Class\uff09<\/strong><\/td><td>\u540c\u3058\u8ee2\u9001\u7d4c\u8def\u3084\u6271\u3044\u3092\u3055\u308c\u308b\u30d1\u30b1\u30c3\u30c8\u306e\u96c6\u307e\u308a\u3002<\/td><\/tr><tr><td><strong>LSP\uff08Label Switched Path\uff09<\/strong><\/td><td>\u30e9\u30d9\u30eb\u3092\u4f7f\u3063\u3066\u5f62\u6210\u3055\u308c\u308b\u8ee2\u9001\u7d4c\u8def\u3002\u7247\u65b9\u5411\u306e\u305f\u3081\u3001\u53cc\u65b9\u5411\u901a\u4fe1\u306b\u306f\u4e21\u65b9\u5411\u306eLSP\u304c\u5fc5\u8981\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">MPLS-VPN\u3067\u306f\u3055\u3089\u306b\u300cVPN\u30e9\u30d9\u30eb\u300d\u304c\u8ffd\u52a0\u3055\u308c\u3001\u3053\u308c\u306b\u3088\u308a\u4f01\u696d\u3054\u3068\u306eVPN\u3092\u5206\u96e2\u3057\u307e\u3059\u3002\u3053\u306eVPN\u30e9\u30d9\u30eb\u306fPE\u30eb\u30fc\u30bf\u9593\u3067MP-BGP\u306b\u3088\u308a\u4ea4\u63db\u3055\u308c\u3001\u6700\u7d42\u7684\u306b\u5b9b\u5148\u4f01\u696d\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u5230\u9054\u3059\u308b\u6642\u306b\u53d6\u308a\u5916\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8a66\u9a13\u5bfe\u7b56\u3068\u3057\u3066\u306f\u3001<strong><span class=\"swl-marker mark_yellow\">\u300cCE\uff1d\u4f01\u696d\u5074\u30eb\u30fc\u30bf\u300d\u300cPE\uff1d\u30ad\u30e3\u30ea\u30a2\u7db2\u3068\u306e\u5883\u754c\u300d\u300cP\uff1d\u30ad\u30e3\u30ea\u30a2\u7db2\u5185\u90e8\u300d\u300cMPLS\u30e9\u30d9\u30eb\u306f4\u30d0\u30a4\u30c8\u300d\u300cLSP\u306f\u7247\u65b9\u5411\u300d<\/span><\/strong>\u3068\u3044\u3046\u30dd\u30a4\u30f3\u30c8\u3092\u3057\u3063\u304b\u308a\u899a\u3048\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">WAN\u306e\u56de\u7dda\u30b5\u30fc\u30d3\u30b9\uff1a\u5e83\u57df\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><span class=\"swl-marker mark_yellow\">\u5e83\u57df\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8<\/span><\/strong>\u306f\u3001\u4f01\u696d\u306eLAN\u3092\u305d\u306e\u307e\u307eWAN\u306b\u5e83\u3052\u305f\u3088\u3046\u306a\u30b5\u30fc\u30d3\u30b9\u3067\u3059\u3002\u30ad\u30e3\u30ea\u30a2\u304c\u63d0\u4f9b\u3059\u308b\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u7db2\u306b\u3001\u4f01\u696d\u306eLAN\u3092\u76f4\u63a5\u63a5\u7d9a\u3057\u3066\u5229\u7528\u3057\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u6771\u4eac\u672c\u793e\u3068\u5927\u962a\u652f\u793e\u3092\u3042\u305f\u304b\u3082\u540c\u3058LAN\u30bb\u30b0\u30e1\u30f3\u30c8\u306e\u3088\u3046\u306b\u6271\u3048\u308b\u3053\u3068\u304c\u7279\u5fb4\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">IP-VPN\u304cMPLS\u306b\u3088\u3063\u3066\u901a\u4fe1\u3092\u5206\u96e2\u3057\u3066\u3044\u305f\u306e\u306b\u5bfe\u3057\u3001\u5e83\u57df\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u3067\u306f\u300cVLAN\u30bf\u30b0\u300d\u3092\u6d3b\u7528\u3057\u3066\u4f01\u696d\u3054\u3068\u306b\u901a\u4fe1\u3092\u5206\u96e2\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u5e83\u57df\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u306e\u4ed5\u7d44\u307f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f01\u696d\u5074\u304b\u3089\u306fIEEE802.1Q\u30d5\u30ec\u30fc\u30e0\uff08VLAN ID\u4ed8\u304d\u306e\u30d5\u30ec\u30fc\u30e0\uff09\u304c\u30ad\u30e3\u30ea\u30a2\u7db2\u306b\u6d41\u308c\u8fbc\u307f\u307e\u3059\u3002\u30ad\u30e3\u30ea\u30a2\u5074\u306e\u30b9\u30a4\u30c3\u30c1\u306f\u3053\u308c\u306b\u5bfe\u3057\u3066\u3055\u3089\u306b\u5225\u306eVLAN\u30bf\u30b0\u3092\u4ed8\u52a0\u3057\u307e\u3059\u3002\u3053\u306e\u4ed5\u7d44\u307f\u3092 <strong>Q-in-Q<\/strong> \u3068\u547c\u3073\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u3048\u3070\u3001A\u793e\u306e\u793e\u5185\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304cVLAN20\u3092\u5229\u7528\u3057\u3066\u3044\u305f\u5834\u5408\u3001\u30ad\u30e3\u30ea\u30a2\u7db2\u3067\u306fA\u793e\u5c02\u7528\u306b\u300cVLAN2000\u300d\u3092\u5272\u308a\u5f53\u3066\u3001\u5916\u90e8\u306eB\u793e\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3068\u306f\u5206\u96e2\u3057\u307e\u3059\u3002\u3053\u306e\u7d50\u679c\u3001\u4f01\u696d\u5185\u306eVLAN\u756a\u53f7\u304c\u4ed6\u793e\u3068\u91cd\u8907\u3057\u3066\u3044\u3066\u3082\u3001\u30ad\u30e3\u30ea\u30a2\u7db2\u5185\u3067\u554f\u984c\u306a\u304f\u5206\u96e2\u3057\u3066\u901a\u4fe1\u3067\u304d\u308b\u308f\u3051\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u307e\u305f\u3001\u5e83\u57df\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u306fLayer2\u30d9\u30fc\u30b9\u306e\u30b5\u30fc\u30d3\u30b9\u3067\u3042\u308b\u305f\u3081\u3001\u4e0a\u4f4d\u306eLayer3\u30d7\u30ed\u30c8\u30b3\u30eb\uff08IP\u4ee5\u5916\u3082\u542b\u3080\uff09\u3092\u81ea\u7531\u306b\u5229\u7528\u3067\u304d\u308b\u67d4\u8edf\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8a66\u9a13\u3067\u306f<strong><span class=\"swl-marker mark_yellow\">\u300cIP-VPN\u306fMPLS\u306b\u3088\u308bL3 VPN\u300d\u300c\u5e83\u57df\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u306fQ-in-Q\u306b\u3088\u308bL2 VPN\u300d<\/span><\/strong>\u3068\u3044\u3046\u9055\u3044\u304c\u3088\u304f\u554f\u308f\u308c\u307e\u3059\u3002\u3069\u3061\u3089\u3082\u73fe\u5728\u306e\u4f01\u696dWAN\u306e\u4e3b\u6d41\u30b5\u30fc\u30d3\u30b9\u306a\u306e\u3067\u3001\u4ed5\u7d44\u307f\u306e\u9055\u3044\u3092\u3057\u3063\u304b\u308a\u6574\u7406\u3057\u3066\u304a\u304f\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">MPLS\u3068\u306f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><span class=\"swl-marker mark_yellow\">MPLS\uff08Multi-Protocol Label Switching\uff09<\/span><\/strong>\u306f\u3001\u30d1\u30b1\u30c3\u30c8\u306b\u300c\u30e9\u30d9\u30eb\u300d\u3068\u547c\u3070\u308c\u308b\u77ed\u3044\u30bf\u30b0\u3092\u4ed8\u3051\u3066\u8ee2\u9001\u3059\u308b\u4ed5\u7d44\u307f\u3067\u3059\u3002\u5f93\u6765\u306eIP\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u304c20\u30d0\u30a4\u30c8\u306eIP\u30d8\u30c3\u30c0\u3092\u8aad\u307f\u53d6\u3063\u3066\u7d4c\u8def\u3092\u6c7a\u3081\u3066\u3044\u305f\u306e\u306b\u5bfe\u3057\u3001MPLS\u3067\u306f4\u30d0\u30a4\u30c8\u306e\u30e9\u30d9\u30eb\u60c5\u5831\u3060\u3051\u3067\u8ee2\u9001\u3067\u304d\u308b\u305f\u3081\u3001\u51e6\u7406\u304c\u5358\u7d14\u5316\u3055\u308c\u9ad8\u901f\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u307e\u305f\u540d\u524d\u306e\u901a\u308a\u3001MPLS\u306fIPv4\u3084IPv6\u3060\u3051\u3067\u306a\u304f\u3001\u304b\u3064\u3066\u4f7f\u308f\u308c\u3066\u3044\u305fIPX\u306a\u3069\u8907\u6570\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u306b\u5bfe\u5fdc\u3067\u304d\u307e\u3059\u3002\u5b9f\u969b\u306b\u306f\u4eca\u65e5\u306e\u4f01\u696d\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304cIP\u4e2d\u5fc3\u3067\u3042\u308b\u305f\u3081\u3001MPLS\u306e\u6d3b\u7528\u4f8b\u3068\u3057\u3066\u6700\u3082\u6709\u540d\u306a\u306e\u306f<strong>IP-VPN<\/strong>\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u305f\u3060\u3057\u73fe\u5728\u3067\u306f\u300c\u9ad8\u901f\u5316\u300d\u3088\u308a\u3082\u300c\u4ed8\u52a0\u4fa1\u5024\u30b5\u30fc\u30d3\u30b9\u306e\u5b9f\u73fe\u300d\u304cMPLS\u306e\u4e3b\u306a\u5f79\u5272\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u4f8b\u3048\u3070\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u6280\u8853\u304cMPLS\u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u63d0\u4f9b\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>MPLS\u306e\u6280\u8853<\/th><th>\u8aac\u660e<\/th><\/tr><\/thead><tbody><tr><td>MPLS-VPN<\/td><td>MPLS\u3092\u7528\u3044\u305fVPN\u30b5\u30fc\u30d3\u30b9\uff08\u4ee3\u8868\u4f8b\u304cIP-VPN\uff09<\/td><\/tr><tr><td>MPLS-QoS<\/td><td>\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u7a2e\u985e\u306b\u5fdc\u3058\u3066\u512a\u5148\u5ea6\u5236\u5fa1\u3092\u884c\u3046QoS\u30b5\u30fc\u30d3\u30b9<\/td><\/tr><tr><td>MPLS-Traffic Engineering<\/td><td>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u5229\u7528\u72b6\u6cc1\u3092\u898b\u3066\u52b9\u7387\u7684\u306b\u7d4c\u8def\u3092\u9078\u629e\u3059\u308b\u6280\u8853<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u8a66\u9a13\u5bfe\u7b56\u3068\u3057\u3066\u306f\u300cMPLS\uff1d\u30e9\u30d9\u30eb\u306b\u3088\u308b\u8ee2\u9001\u6280\u8853\u300d\u300c4\u30d0\u30a4\u30c8\u30e9\u30d9\u30eb\u300d\u300cVPN\u30fbQoS\u30fbTraffic Engineering\u306b\u5fdc\u7528\u300d\u3068\u3044\u3046\u70b9\u3092\u78ba\u5b9f\u306b\u899a\u3048\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">MPLS\u306b\u304a\u3051\u308b\u30eb\u30fc\u30bf\u306e\u5f79\u5272<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">MPLS\u7db2\u3067\u306f\u30eb\u30fc\u30bf\u304c\u305d\u308c\u305e\u308c\u5f79\u5272\u3092\u6301\u3063\u3066\u3044\u307e\u3059\u3002\u7528\u8a9e\u3092\u6574\u7406\u3059\u308b\u3068\u6b21\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u7528\u8a9e<\/th><th>\u8aac\u660e<\/th><\/tr><\/thead><tbody><tr><td><strong>CE\uff08Customer Edge\uff09<\/strong><\/td><td>\u9867\u5ba2\u5074\u306e\u30eb\u30fc\u30bf\u3002MPLS\u306f\u52d5\u4f5c\u3055\u305b\u306a\u3044\u3002<\/td><\/tr><tr><td><strong>LER\uff08Label Edge Router\uff09<\/strong><\/td><td>MPLS\u7db2\u306e\u5165\u308a\u53e3\u3068\u51fa\u53e3\u306b\u3042\u308b\u30eb\u30fc\u30bf\u3002\u4f01\u696d\u306eCE\u3068\u63a5\u7d9a\u3057\u3001\u30d1\u30b1\u30c3\u30c8\u306b\u30e9\u30d9\u30eb\u3092\u4ed8\u3051\u305f\u308a\u5916\u3057\u305f\u308a\u3059\u308b\u3002PE\uff08Provider Edge\uff09\u3068\u3082\u547c\u3070\u308c\u308b\u3002<\/td><\/tr><tr><td><strong>LSR\uff08Label Switching Router\uff09<\/strong><\/td><td>MPLS\u7db2\u306e\u4e2d\u7d99\u30eb\u30fc\u30bf\u3002\u53d7\u3051\u53d6\u3063\u305f\u30d1\u30b1\u30c3\u30c8\u306e\u30e9\u30d9\u30eb\u3092\u4ed8\u3051\u66ff\u3048\u3066\u6b21\u306b\u8ee2\u9001\u3059\u308b\u3002P\u30eb\u30fc\u30bf\u3068\u3082\u547c\u3070\u308c\u308b\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u3053\u3067\u91cd\u8981\u306a\u306e\u306f\u300cIngress LER\u300d\u3068\u300cEgress LER\u300d\u3068\u3044\u3046\u547c\u3073\u65b9\u3067\u3059\u3002\u3042\u308b\u901a\u4fe1\u30d5\u30ed\u30fc\u306b\u304a\u3044\u3066\u3001\u30e9\u30d9\u30eb\u3092\u4ed8\u3051\u308b\u5165\u53e3\u5074\u306eLER\u3092Ingress\u3001\u30e9\u30d9\u30eb\u3092\u5916\u3059\u51fa\u53e3\u5074\u306eLER\u3092Egress\u3068\u547c\u3073\u307e\u3059\u3002\u9006\u65b9\u5411\u306e\u901a\u4fe1\u30d5\u30ed\u30fc\u3067\u306f\u5f79\u5272\u304c\u9006\u306b\u306a\u308b\u70b9\u3082\u8a66\u9a13\u3067\u72d9\u308f\u308c\u3084\u3059\u3044\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">MPLS\u306b\u3088\u308b\u30d1\u30b1\u30c3\u30c8\u8ee2\u9001\u306e\u30b9\u30c6\u30c3\u30d7<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">MPLS\u3067\u30d1\u30b1\u30c3\u30c8\u3092\u8ee2\u9001\u3059\u308b\u6d41\u308c\u306f\u5927\u304d\u304f3\u6bb5\u968e\u306b\u5206\u304b\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>FEC\u306b\u5bfe\u3059\u308b\u30e9\u30d9\u30eb\u5272\u308a\u5f53\u3066<\/strong><br>FEC\uff08Forwarding Equivalence Class\uff09\u3068\u306f\u540c\u3058\u6271\u3044\u3092\u53d7\u3051\u308b\u30d1\u30b1\u30c3\u30c8\u306e\u30b0\u30eb\u30fc\u30d7\u3067\u3059\u3002\u5b9b\u5148IP\u30a2\u30c9\u30ec\u30b9\u3084\u30de\u30eb\u30c1\u30ad\u30e3\u30b9\u30c8\u30b0\u30eb\u30fc\u30d7\u3001IP\u30d8\u30c3\u30c0\u306eToS\u5024\u306a\u3069\u3092\u57fa\u6e96\u306b\u5b9a\u7fa9\u3055\u308c\u307e\u3059\u3002\u4f8b\u3048\u3070\u300c10.1.1.0\/24\u5b9b\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u300d\u30921\u3064\u306eFEC\u3068\u8003\u3048\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u30e9\u30d9\u30eb\u914d\u5e03\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u30e9\u30d9\u30eb\u60c5\u5831\u4ea4\u63db<\/strong><br>MPLS\u30eb\u30fc\u30bf\u306f\u30e9\u30d9\u30eb\u5024\u3092\u96a3\u63a5\u30eb\u30fc\u30bf\u3068\u4ea4\u63db\u3057\u3066\u30e9\u30d9\u30eb\u30c6\u30fc\u30d6\u30eb\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002\u4e3b\u306a\u30d7\u30ed\u30c8\u30b3\u30eb\u306f\u6b21\u306e\u901a\u308a\u3067\u3059\u3002\n<ul class=\"wp-block-list\">\n<li><strong>LDP<\/strong>\uff08Label Distribution Protocol\uff09<\/li>\n\n\n\n<li><strong>TDP<\/strong>\uff08Tag Distribution Protocol\u3001\u53e4\u3044\uff09<\/li>\n\n\n\n<li><strong>RSVP<\/strong>\uff08Resource Reservation Protocol\u3001Traffic Engineering\u5411\u3051\uff09<\/li>\n\n\n\n<li><strong>MP-BGP<\/strong>\uff08Multi-Protocol BGP\u3001MPLS-VPN\u5411\u3051\uff09<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u30e9\u30d9\u30eb\u60c5\u5831\u306b\u57fa\u3065\u3044\u305f\u8ee2\u9001<\/strong><br>16\uff5e1048575\u306e\u7bc4\u56f2\u3067\u5272\u308a\u5f53\u3066\u3089\u308c\u305f\u30e9\u30d9\u30eb\u5024\u3092\u898b\u3066\u8ee2\u9001\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u5f93\u6765\u306eIP\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3088\u308a\u3082\u52b9\u7387\u7684\u306b\u30d1\u30b1\u30c3\u30c8\u3092\u51e6\u7406\u3067\u304d\u307e\u3059\u3002<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u8a66\u9a13\u3067\u306f\u300c\u30e9\u30d9\u30eb\u5024\u306e\u7bc4\u56f2\u300d\u300cFEC\u306e\u5b9a\u7fa9\u65b9\u6cd5\u300d\u300cLDP\u3068MP-BGP\u306e\u4f7f\u3044\u5206\u3051\u300d\u306a\u3069\u304c\u554f\u308f\u308c\u3084\u3059\u3044\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">MPLS\u306e\u30e9\u30d9\u30eb\u5024\u306b\u3064\u3044\u3066<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">MPLS\u306e\u9762\u767d\u3044\u70b9\u306f\u3001<strong>\u30e9\u30d9\u30eb\u5024\u304c\u30ed\u30fc\u30ab\u30eb\u3067\u6c7a\u3081\u3089\u308c\u3001\u914d\u5e03\u3055\u308c\u308b<\/strong>\u3068\u3044\u3046\u4ed5\u7d44\u307f\u3067\u3059\u3002\u4f8b\u3048\u3070\u3001\u3042\u308b\u30eb\u30fc\u30bf\u304c\u300c172.16.0.0\/16\u5b9b\u306f\u30e9\u30d9\u30eb21\u300d\u3068\u6c7a\u3081\u305f\u3068\u3059\u308b\u3068\u3001\u305d\u306e\u60c5\u5831\u3092\u96a3\u63a5\u30eb\u30fc\u30bf\u306b\u901a\u77e5\u3057\u307e\u3059\u3002\u96a3\u63a5\u30eb\u30fc\u30bf\u306f\u540c\u3058\u5b9b\u5148\u306b\u5bfe\u3057\u3066\u300c\u30e9\u30d9\u30eb20\u300d\u3068\u3044\u3046\u81ea\u5206\u306e\u5024\u3092\u6c7a\u3081\u3001\u3055\u3089\u306b\u624b\u524d\u306e\u30eb\u30fc\u30bf\u306b\u4f1d\u3048\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3064\u307e\u308a\u3001\u540c\u3058\u5b9b\u5148FEC\u306b\u5bfe\u3057\u3066\u3082\u30eb\u30fc\u30bf\u3054\u3068\u306b\u7570\u306a\u308b\u30e9\u30d9\u30eb\u5024\u304c\u5272\u308a\u5f53\u3066\u3089\u308c\u3001\u96a3\u63a5\u9593\u3067\u4f1d\u9054\u3055\u308c\u3066\u3044\u304d\u307e\u3059\u3002\u3053\u306e\u4ed5\u7d44\u307f\u306b\u3088\u3063\u3066MPLS\u7db2\u5168\u4f53\u306b\u30e9\u30d9\u30eb\u30b9\u30a4\u30c3\u30c1\u30d1\u30b9\uff08LSP\uff09\u304c\u5f62\u6210\u3055\u308c\u308b\u306e\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u3053\u306f\u300c\u30ed\u30fc\u30ab\u30eb\u3067\u306e\u30e9\u30d9\u30eb\u5272\u308a\u5f53\u3066 \u2192 \u96a3\u63a5\u3078\u914d\u5e03 \u2192 LSP\u5f62\u6210\u300d\u3068\u3044\u3046\u6d41\u308c\u3092\u62bc\u3055\u3048\u3066\u304a\u304f\u3053\u3068\u304c\u5927\u5207\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">WAN\u30ab\u30d7\u30bb\u30eb\u5316\u30d7\u30ed\u30c8\u30b3\u30eb\uff1aHDLC<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">WAN\u3067\u4f7f\u308f\u308c\u308b\u30ab\u30d7\u30bb\u30eb\u5316\u30d7\u30ed\u30c8\u30b3\u30eb\u306b\u306f\u4ee3\u8868\u7684\u306b <strong><span class=\"swl-marker mark_yellow\">HDLC<\/span><\/strong> \u3068 <strong><span class=\"swl-marker mark_yellow\">PPP<\/span><\/strong> \u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3089\u306f\u4e3b\u306b\u5c02\u7528\u7dda\u3084ISDN\u3001PSTN\u306e\u3088\u3046\u306a\u30b7\u30ea\u30a2\u30eb\u56de\u7dda\u3067\u5229\u7528\u3055\u308c\u307e\u3059\u3002\u4e00\u65b9\u3067\u3001\u5e83\u57df\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u3067\u306fLAN\u3068\u540c\u3058 <strong><span class=\"swl-marker mark_yellow\">Ethernet<\/span><\/strong> \u304c\u4f7f\u308f\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">HDLC\u306e\u7279\u5fb4<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><span class=\"swl-marker mark_yellow\">HDLC\uff08High-level Data Link Control\uff09<\/span><\/strong>\u306f\u3001\u5c02\u7528\u7dda\u306a\u3069\u3067\u5229\u7528\u3055\u308c\u308b\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u5c64\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3001\u30dd\u30a4\u30f3\u30c8\u30c4\u30fc\u30dd\u30a4\u30f3\u30c8\u63a5\u7d9a\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002ISO\u306b\u3088\u3063\u3066\u6a19\u6e96\u5316\u3055\u308c\u3066\u3044\u307e\u3059\u304c\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64\u3092\u8b58\u5225\u3059\u308b\u30d5\u30a3\u30fc\u30eb\u30c9\u304c\u5b58\u5728\u3057\u306a\u3044\u305f\u3081\u3001\u8907\u6570\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u540c\u6642\u306b\u6271\u3048\u306a\u3044\u3068\u3044\u3046\u5236\u9650\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u305d\u3053\u3067\u5404\u30e1\u30fc\u30ab\u30fc\u306f\u72ec\u81ea\u62e1\u5f35\u3092\u52a0\u3048\u3001\u8907\u6570\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u5229\u7528\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u3066\u304d\u307e\u3057\u305f\u3002Cisco\u306e\u5834\u5408\u306f <strong>Cisco\u72ec\u81ea\u306eHDLC<\/strong> \u3092\u63a1\u7528\u3057\u3066\u304a\u308a\u3001\u4ed6\u793e\u88fd\u30eb\u30fc\u30bf\u3068\u306f\u4e92\u63db\u6027\u304c\u3042\u308a\u307e\u305b\u3093\u3002\u3064\u307e\u308a\u3001Cisco\u30eb\u30fc\u30bf\u540c\u58eb\u3067\u3042\u308c\u3070HDLC\u3092\u5229\u7528\u3067\u304d\u307e\u3059\u304c\u3001\u7570\u306a\u308b\u30e1\u30fc\u30ab\u30fc\u9593\u3067\u63a5\u7d9a\u3059\u308b\u5834\u5408\u306f <strong>PPP\u3092\u4f7f\u7528\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b<\/strong> \u3068\u3044\u3046\u70b9\u304c\u8a66\u9a13\u3067\u3082\u72d9\u308f\u308c\u3084\u3059\u3044\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Cisco\u30eb\u30fc\u30bf\u3067\u306e\u8a2d\u5b9a\u4f8b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">HDLC\u3092\u5229\u7528\u3059\u308b\u5834\u5408\u306f\u3001\u30b7\u30ea\u30a2\u30eb\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306b\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Router(config)# interface serial0\/0\nRouter(config-if)# encapsulation hdlc<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u73fe\u5728\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3067\u5229\u7528\u4e2d\u306e\u30ab\u30d7\u30bb\u30eb\u5316\u65b9\u5f0f\u306f\u3001<code>show interfaces serial0\/0<\/code> \u3067\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">WAN\u30ab\u30d7\u30bb\u30eb\u5316\u30d7\u30ed\u30c8\u30b3\u30eb\uff1aPPP<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><span class=\"swl-marker mark_yellow\">PPP\uff08Point-to-Point Protocol\uff09<\/span><\/strong>\u306f\u3001HDLC\u3092\u30d9\u30fc\u30b9\u306b\u958b\u767a\u3055\u308c\u305f\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3001\u5c02\u7528\u7dda\u3084ISDN\u3001PSTN\u306a\u3069\u306e\u30dd\u30a4\u30f3\u30c8\u30c4\u30fc\u30dd\u30a4\u30f3\u30c8\u63a5\u7d9a\u3067\u5e83\u304f\u5229\u7528\u3055\u308c\u307e\u3059\u3002HDLC\u306b\u306f\u306a\u3044\u300c\u30d7\u30ed\u30c8\u30b3\u30eb\u30d5\u30a3\u30fc\u30eb\u30c9\u300d\u3092\u6301\u3064\u305f\u3081\u3001IP\u3084IPX\u306a\u3069\u8907\u6570\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u540c\u6642\u306b\u6271\u3048\u308b\u306e\u304c\u7279\u5fb4\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3055\u3089\u306b\u3001PPP\u306f\u4ee5\u4e0b\u306e\u6a5f\u80fd\u3092\u30aa\u30d7\u30b7\u30e7\u30f3\u3067\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8a8d\u8a3c\uff08PAP\u3001CHAP\uff09<\/li>\n\n\n\n<li>\u30c7\u30fc\u30bf\u5727\u7e2e<\/li>\n\n\n\n<li>\u30de\u30eb\u30c1\u30ea\u30f3\u30af\uff08\u8907\u6570\u306e\u30ea\u30f3\u30af\u30921\u3064\u306b\u307e\u3068\u3081\u308b\uff09<\/li>\n\n\n\n<li>\u30a8\u30e9\u30fc\u691c\u51fa<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">PPP\u306e\u69cb\u6210<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">PPP\u306f <strong>LCP\uff08Link Control Protocol\uff09<\/strong> \u3068 <strong>NCP\uff08Network Control Protocol\uff09<\/strong> \u3067\u69cb\u6210\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>LCP<\/strong>\uff1a\u30ea\u30f3\u30af\u306e\u78ba\u7acb\u3001\u7dad\u6301\u3001\u5207\u65ad\u3092\u884c\u3046\u3002\u30aa\u30d7\u30b7\u30e7\u30f3\u3068\u3057\u3066\u8a8d\u8a3c\u3084\u5727\u7e2e\u3001\u30de\u30eb\u30c1\u30ea\u30f3\u30af\u3001\u30a8\u30e9\u30fc\u691c\u51fa\u3092\u5229\u7528\u53ef\u80fd\u3002<\/li>\n\n\n\n<li><strong>NCP<\/strong>\uff1a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u8b58\u5225\u3057\u3001\u63a5\u7d9a\u3092\u78ba\u7acb\u3059\u308b\u3002\u4f8b\u3048\u3070IP\u306a\u3089IPCP\u3001IPX\u306a\u3089IPXCP\u3092\u4f7f\u7528\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">PPP\u63a5\u7d9a\u306f\u4ee5\u4e0b\u306e\u624b\u9806\u3067\u9032\u307f\u307e\u3059\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>LCP\u306b\u3088\u308b\u30ea\u30f3\u30af\u78ba\u7acb<\/li>\n\n\n\n<li>\u8a8d\u8a3c\uff08\u5fc5\u8981\u306a\u5834\u5408\u306e\u307f\uff09<\/li>\n\n\n\n<li>NCP\u306b\u3088\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u63a5\u7d9a\u78ba\u7acb<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">LCP\u30aa\u30d7\u30b7\u30e7\u30f3<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u6a5f\u80fd<\/th><th>\u4f7f\u7528\u3059\u308b\u30d7\u30ed\u30c8\u30b3\u30eb<\/th><th>\u8aac\u660e<\/th><\/tr><\/thead><tbody><tr><td>\u8a8d\u8a3c<\/td><td>PAP\u3001CHAP<\/td><td>PAP\u306f\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u5e73\u6587\u9001\u4fe1\u3001CHAP\u306f\u30cf\u30c3\u30b7\u30e5\u5316\u3057\u3066\u9001\u4fe1\u3002<\/td><\/tr><tr><td>\u5727\u7e2e<\/td><td>Predictor\u3001Stac\u3001MPPC<\/td><td>\u30c7\u30fc\u30bf\u5727\u7e2e\u3067\u52b9\u7387\u5316\u3002\u305f\u3060\u3057\u5b9f\u904b\u7528\u3067\u306f\u554f\u984c\u304c\u51fa\u3084\u3059\u3044\u305f\u3081\u975e\u63a8\u5968\u3002<\/td><\/tr><tr><td>\u30de\u30eb\u30c1\u30ea\u30f3\u30af<\/td><td>Multi-link Protocol<\/td><td>\u8907\u6570\u306ePPP\u30ea\u30f3\u30af\u3092\u675f\u306d\u30661\u3064\u306e\u8ad6\u7406\u30ea\u30f3\u30af\u306b\u3059\u308b\u3002<\/td><\/tr><tr><td>\u30a8\u30e9\u30fc\u691c\u51fa<\/td><td>Quality\u3001Magic Number<\/td><td>\u30ea\u30f3\u30af\u54c1\u8cea\u306e\u78ba\u8a8d\u3084\u30eb\u30fc\u30d7\u691c\u51fa\u3092\u884c\u3046\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u8a8d\u8a3c\u65b9\u5f0f\uff1aPAP\u3068CHAP<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">PPP\u3067\u5229\u7528\u3055\u308c\u308b\u8a8d\u8a3c\u65b9\u5f0f\u306f <strong>PAP<\/strong> \u3068 <strong>CHAP<\/strong> \u3067\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><span class=\"swl-marker mark_yellow\"><strong>PAP<\/strong>\uff08Password Authentication Protocol\uff09<\/span><br>\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c\u30e6\u30fc\u30b6\u540d\u3068\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u9001\u4fe1\u3057\u3001\u30b5\u30fc\u30d0\u5074\u3067\u767b\u9332\u60c5\u5831\u3068\u7167\u5408\u3057\u307e\u3059\u3002\u30b7\u30f3\u30d7\u30eb\u3067\u3059\u304c\u5e73\u6587\u3067\u9001\u4fe1\u3055\u308c\u308b\u305f\u3081\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306f\u5f31\u3044\uff082\u30a6\u30a7\u30a4\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\uff09\u3002<\/li>\n\n\n\n<li><span class=\"swl-marker mark_yellow\"><strong>CHAP<\/strong>\uff08Challenge Handshake Authentication Protocol\uff09<br><\/span>\u30b5\u30fc\u30d0\u304b\u3089\u4e71\u6570\uff08\u30c1\u30e3\u30ec\u30f3\u30b8\uff09\u3092\u9001\u308a\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306f\u3053\u308c\u306b\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u30cf\u30c3\u30b7\u30e5\u3092\u8a08\u7b97\u3057\u3066\u5fdc\u7b54\u3057\u307e\u3059\u3002\u30b5\u30fc\u30d0\u306f\u81ea\u5206\u3067\u8a08\u7b97\u3057\u305f\u30cf\u30c3\u30b7\u30e5\u3068\u7167\u5408\u3057\u3066\u8a8d\u8a3c\u3092\u884c\u3044\u307e\u3059\u3002\u30af\u30ea\u30a2\u30c6\u30ad\u30b9\u30c8\u3092\u9001\u3089\u306a\u3044\u305f\u3081\u5b89\u5168\u6027\u304c\u9ad8\u304f\u30013\u30a6\u30a7\u30a4\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u3092\u63a1\u7528\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u8a66\u9a13\u3067\u306f\u300cPAP\u306f\u5e73\u6587\u3001CHAP\u306f\u6697\u53f7\u5316\u300d\u300cPAP\u306f2\u30a6\u30a7\u30a4\u3001CHAP\u306f3\u30a6\u30a7\u30a4\u300d\u3068\u3044\u3046\u9055\u3044\u3092\u78ba\u5b9f\u306b\u62bc\u3055\u3048\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Cisco\u30eb\u30fc\u30bf\u3067\u306eCHAP\u8a2d\u5b9a\u4f8b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">CHAP\u8a8d\u8a3c\u3092\u4f7f\u3063\u305fPPP\u63a5\u7d9a\u3092\u8a2d\u5b9a\u3059\u308b\u969b\u306e\u30dd\u30a4\u30f3\u30c8\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30db\u30b9\u30c8\u540d\u306e\u8a2d\u5b9a<\/li>\n\n\n\n<li>\u30b7\u30ea\u30a2\u30eb\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u30ab\u30d7\u30bb\u30eb\u5316\u3092PPP\u306b\u8a2d\u5b9a<\/li>\n\n\n\n<li>\u8a8d\u8a3c\u65b9\u5f0f\u3092CHAP\u306b\u8a2d\u5b9a<\/li>\n\n\n\n<li>\u76f8\u624b\u30eb\u30fc\u30bf\u306e\u30db\u30b9\u30c8\u540d\u3068\u540c\u3058\u540d\u524d\u3092\u30e6\u30fc\u30b6\u540d\u3068\u3057\u3066\u767b\u9332\u3057\u3001\u5171\u901a\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u8a2d\u5b9a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-code\"><code>Router(config)# hostname R1\nRouter(config)# username R2 password cisco\nRouter(config)# interface serial0\/0\nRouter(config-if)# encapsulation ppp\nRouter(config-if)# ppp authentication chap<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u30b9\u30c6\u30fc\u30bf\u30b9\u78ba\u8a8d\u306f <code>show interfaces serial0\/0<\/code>\u3001\u52d5\u4f5c\u78ba\u8a8d\u306f <code>debug ppp authentication<\/code> \u3067\u884c\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8a66\u9a13\u3067\u306f\u8a2d\u5b9a\u30b3\u30de\u30f3\u30c9\u3068\u3068\u3082\u306b\u300cCHAP\u306f\u76f8\u4e92\u8a8d\u8a3c\u300d\u300c\u30e6\u30fc\u30b6\u540d\u306f\u76f8\u624b\u30eb\u30fc\u30bf\u306e\u30db\u30b9\u30c8\u540d\u3068\u4e00\u81f4\u3055\u305b\u308b\u300d\u3068\u3044\u3046\u90e8\u5206\u304c\u983b\u51fa\u30dd\u30a4\u30f3\u30c8\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u25c6\u307e\u3068\u3081\u30b9\u30e9\u30a4\u30c9<\/h2>\n\n\n\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/ccna-curriculum.tech-village.co.jp\/wp-content\/uploads\/2025\/02\/WAN.pdf\" type=\"application\/pdf\" style=\"width:100%;height:600px\" aria-label=\"WAN\u306e\u57cb\u3081\u8fbc\u307f\u3002\"><\/object><a id=\"wp-block-file--media-ae098d26-a3fd-4001-8af7-5c5f54cf420a\" href=\"https:\/\/ccna-curriculum.tech-village.co.jp\/wp-content\/uploads\/2025\/02\/WAN.pdf\">WAN<\/a><\/div>\n","protected":false},"excerpt":{"rendered":"<p>WAN\u3068\u306f WAN\uff08Wide Area Network\u3001\u5e83\u57df\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff09\u306f\u3001NTT\u306a\u3069\u306e\u901a\u4fe1\u4e8b\u696d\u8005\u304c\u63d0\u4f9b\u3059\u308b\u30b5\u30fc\u30d3\u30b9\u3092\u5229\u7528\u3057\u3066\u3001\u672c\u793e\u3068\u652f\u793e\u306a\u3069\u5730\u7406\u7684\u306b\u96e2\u308c\u305f\u62e0\u70b9\u540c\u58eb\u3092\u63a5\u7d9a\u3059\u308b\u305f\u3081\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u3059\u3002LAN\u306f\u4f01\u696d\u304c\u81ea\u3089\u6a5f 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