{"id":10882,"date":"2014-06-17T12:17:22","date_gmt":"2014-06-17T03:17:22","guid":{"rendered":"http:\/\/labs.gree.jp\/blog\/?p=10882"},"modified":"2014-06-17T12:17:22","modified_gmt":"2014-06-17T03:17:22","slug":"%e6%9f%94%e8%bb%9f%e3%81%aa-it-%e3%82%a4%e3%83%b3%e3%83%95%e3%83%a9%e3%81%a8%e3%81%9d%e3%82%8c%e3%82%92%e6%94%af%e3%81%88%e3%82%8b%e6%8a%80%e8%a1%93","status":"publish","type":"post","link":"https:\/\/labs.gree.jp\/blog\/2014\/06\/10882\/","title":{"rendered":"\u67d4\u8edf\u306a IT \u30a4\u30f3\u30d5\u30e9\u3068\u305d\u308c\u3092\u652f\u3048\u308b\u6280\u8853"},"content":{"rendered":"<p>\u3000\u3053\u3093\u306b\u3061\u306f\u3001\u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u672c\u90e8\u306e\u5927\u5c71\u88d5\u6cf0\u3067\u3059\u3002\u6700\u8fd1\u8a71\u984c\u306e WhiteBox 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\/>\n\u3000\u3053\u306e\u3088\u3046\u306b\u304a\u91d1\u304c\u7121\u5c3d\u8535\u306b\u3042\u308a\u3001\u4e14\u3064\u7279\u5b9a\u306e\u30d9\u30f3\u30c0\u30fc\u3068\u81ea\u793e\u306e\u30a4\u30f3\u30d5\u30e9\u306e\u904b\u547d\u3092\u5171\u306b\u3059\u308b\u6c7a\u5fc3\u3092\u3059\u308c\u3070\u3001\u65e5\u3005\u767a\u751f\u3059\u308b\u904b\u7528\u8ab2\u984c\u306e\u89e3\u6c7a\u3084\u3001\u65b0\u305f\u306a\u8981\u6c42\u3078\u306e\u5bfe\u5fdc\u3082\u53ef\u80fd\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001\u73fe\u5b9f\u7684\u306b\u3053\u306e\u9078\u629e\u80a2\u306f\u8ce2\u660e\u3068\u306f\u8a00\u3048\u307e\u305b\u3093\u3002<br \/>\n\u3000\u306a\u306e\u3067\u6211\u3005\u30a4\u30f3\u30d5\u30e9\u30a8\u30f3\u30b8\u30cb\u30a2\u306f\u3001\u306a\u308b\u3079\u304f\u81ea\u529b\u3067\u69d8\u3005\u306a\u30cb\u30fc\u30ba\u3084\u8ab2\u984c\u306b\u5bfe\u5fdc\u3067\u304d\u308b\u67d4\u8edf\u306a IT 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\/>\n\u3000\u306a\u306e\u3067\u4eca\u65e5\u3067\u306f\u3001\u67d4\u8edf\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u74b0\u5883\u4f5c\u308a\u304c\u3088\u308a\u67d4\u8edf\u306a\u30a4\u30f3\u30d5\u30e9\u4f5c\u308a\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002<\/p>\n<h2>\u67d4\u8edf\u306a\u30a4\u30f3\u30d5\u30e9\u306e\u4f8b<\/h2>\n<p>\u3000\u67d4\u8edf\u306a\u30a4\u30f3\u30d5\u30e9\u306e\u30e2\u30c7\u30eb\u30b1\u30fc\u30b9\u3068\u3057\u3066 Microsoft \u3084 Facebook \u304c\u6709\u540d\u3067\u3059\u3002<br \/>\n\u3000DC \u5185\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u904b\u7528\u306f\u3001\u901a\u5e38 STP \u3084\u30d9\u30f3\u30c0\u30fc\u30aa\u30ea\u30b8\u30ca\u30eb\u306e\u5197\u9577\u5316\u30d7\u30ed\u30c8\u30b3\u30eb\u306a\u3069 L2 \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u6280\u8853\u3067\u884c\u3046\u3068\u3053\u308d\u3001<a href='http:\/\/www.nanog.org\/sites\/default\/files\/wed.general.brainslug.lapukhov.20.pdf'>Microsoft \u306f BGP \u3092\u4f7f\u3063\u305f L3 \u306e\u6280\u8853\u3067\u3053\u308c\u3092\u69cb\u7bc9\u30fb\u904b\u7528\u3057\u3066\u3057\u307e\u3044\u307e\u3057\u305f<\/a>\u3002\u3053\u308c\u306e\u51c4\u3044\u3068\u3053\u308d\u306f\u3001\u30d9\u30f3\u30c0\u30fc\u30aa\u30ea\u30b8\u30ca\u30eb\u306a\u6a5f\u80fd\u306f\u4f7f\u308f\u305a\u306b\u5168\u3066\u30aa\u30fc\u30d7\u30f3\u3067\u6a19\u6e96\u5316\u3055\u308c\u305f\u6280\u8853\u3092\u4f7f\u3046\u3053\u3068\u3067\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u6a5f\u5668\u3092\u30b3\u30e2\u30c7\u30a3\u30c6\u30a3\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u3067\u69cb\u6210\u3057\u3066\u3044\u308b\u4e8b\u3067\u3059\u3002<br \/>\n\u3000Facebook \u3082\u307e\u305f\u3001<a href='http:\/\/www.datacenterknowledge.com\/archives\/2013\/05\/08\/open-compute-will-begin-building-network-switches\/'>\u30de\u30eb\u30c1\u30d9\u30f3\u30c0\u30fc\u3067\u67d4\u8edf\u306a\u30a4\u30f3\u30d5\u30e9\u69cb\u7bc9\u3092\u76ee\u6307\u3057\u3066\u3044\u307e\u3059<\/a>\u3002\u66f4\u306b Facebook \u306f\u3001<a href='http:\/\/www.opencompute.org\/'>\u30b9\u30b1\u30fc\u30e9\u30d6\u30eb\u3067\u52b9\u7387\u7684\u306a DC \u74b0\u5883\u306e\u69cb\u7bc9\u3092\u63d0\u5531<\/a> \u3057\u3001\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u8a2d\u8a08\u306e\u7d71\u4e00\u30fb\u5171\u901a\u5316\u3092\u56f3\u308d\u3046\u3068\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>WhiteBox \u30b9\u30a4\u30c3\u30c1<\/h2>\n<p>\u3000\u3053\u3046\u3057\u305f\u80cc\u666f\u304b\u3089\u3001WhiteBox \u30b9\u30a4\u30c3\u30c1\u3068\u547c\u3070\u308c\u308b\u30d9\u30f3\u30c0\u30fc\u8b39\u88fd\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af OS \u3092\u6301\u305f\u306a\u3044\u30d9\u30a2\u30e1\u30bf\u30eb\u30b9\u30a4\u30c3\u30c1\u306e\u6d3b\u7528\u304c\u6ce8\u76ee\u3055\u308c\u3066\u3044\u307e\u3059\u3002<br \/>\n\u3000WhiteBox \u30b9\u30a4\u30c3\u30c1\u306f\u3001\u30d9\u30f3\u30c0\u30fc\u30aa\u30ea\u30b8\u30ca\u30eb\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af OS \u306e\u4ee3\u308f\u308a\u306b GNU\/Linux \u30d9\u30fc\u30b9\u306e OS \u3092\u5165\u308c\u3001\u30e6\u30fc\u30b6\u5074\u304c\u30b9\u30a4\u30c3\u30c1\u306b\u5bfe\u3057\u3066\u69d8\u3005\u306a\u6a5f\u80fd\u3092\u5b9f\u88c5\u3057\u3066\u4f7f\u3048\u308b\u306e\u304c\u4e00\u3064\u306e\u7279\u5fb4\u3067\u3059\u3002<br \/>\n\u3000\u307e\u305f\u3001\u30aa\u30fc\u30d7\u30f3\u306a\u6280\u8853\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u4e8b\u3067\u67d4\u8edf\u306b\u5229\u7528\u3067\u304d\u308b\u3060\u3051\u3067\u306a\u304f\u3001\u30d9\u30f3\u30c0\u30fc\u88fd\u3068\u540c\u3058\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u30b9\u30da\u30c3\u30af\u306e\u6a5f\u5668\u3092\u5b89\u4fa1\u306b\u624b\u306b\u5165\u308c\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<br \/>\n\u3000\u3053\u3046\u3057\u305f WhiteBox \u30b9\u30a4\u30c3\u30c1\u3092\u624b\u304c\u3051\u308b\u30d7\u30ec\u30a4\u30e4\u30fc\u3068\u3057\u3066\u3001\u30c1\u30c3\u30d7\u30e1\u30fc\u30ab\u30fc(Mellanox, Broadcom \u306a\u3069)\u3001\u30db\u30ef\u30a4\u30c8\u30dc\u30c3\u30af\u30b9\u30d9\u30f3\u30c0\u30fc(Quanta, ACCESS, NCLC \u306a\u3069)\u3001\u305d\u3057\u3066\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30d9\u30f3\u30c0\u30fc(Cumulus Networks, Big Switch Networks) \u306a\u3069\u304c\u304a\u308a\u3001\u3068\u3066\u3082\u6d3b\u767a\u306a\u52d5\u304d\u3092\u898b\u305b\u3066\u3044\u307e\u3059\u3002<br \/>\n\u3000\u4eca\u56de\u306f OCP \u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30ad\u30f3\u30b0\u30b7\u30e7\u30c3\u30d7\u306a\u3069\u306b\u3082\u53c2\u52a0\u3059\u308b Cumulus Networks \u306a\u3069\u3067\u5229\u7528\u3055\u308c\u3066\u3044\u308b\u30df\u30c9\u30eb\u30a6\u30a7\u30a2 \"<a href='http:\/\/www.nongnu.org\/quagga\/'>Quagga<\/a>\" \u306b\u3064\u3044\u3066\u3001\u4f7f\u3044\u65b9\u304b\u3089\u5185\u90e8\u5b9f\u88c5\u307e\u3067\u898b\u3066\u3086\u304d\u307e\u3059\u3002<\/p>\n<h2>Quagga \u3068\u306f\uff1f<\/h2>\n<p>\u3000Quagga \u306f RIP, OSPF, BGP \u306a\u3069\u306e\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u5b9f\u88c5\u3057\u305f\u30de\u30eb\u30c1\u30d7\u30ed\u30c8\u30b3\u30eb\u306a\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3067\u3001cisco \u30e9\u30a4\u30af\u306a CLI \u74b0\u5883\u304c\u7279\u5fb4\u3067\u3059\u3002\u4ed6\u306b\u30de\u30eb\u30c1\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3068\u3057\u3066 BIRD \u3084 xorp \u306a\u3069\u304c\u3042\u308a\u3042\u307e\u3059\u3002<br \/>\n\u3000\u307e\u305f Quagga \u306f\u3001WhiteBox \u30b9\u30a4\u30c3\u30c1\u306e GNU\/Linux \u306e\u30c7\u30a3\u30b9\u30c8\u30ea\u30d3\u30e5\u30fc\u30b7\u30e7\u30f3 \"Cumulus Linux\"  \u306b\u304a\u3044\u3066\u5229\u7528\u3055\u308c\u3066\u3044\u308b\u4ed6\u3001Quagga \u306e\u30b3\u30a2\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u304c ACCESS \u304c\u51fa\u3059 WhiteBox \u30b9\u30a4\u30c3\u30c1 \"AEROZ\" \u306e\u30df\u30c9\u30eb\u30a6\u30a7\u30a2 ZebOS \u306b\u304a\u3044\u3066\u3082\u4f7f\u308f\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>Quagga \u306e\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3<\/h2>\n<p>\u3000Quagga \u306f\u4e00\u3064\u306e\u30b3\u30a2\u30c7\u30fc\u30e2\u30f3 (zebrad) \u3068\u3001\u8907\u6570\u306e zebra \u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30c7\u30fc\u30e2\u30f3\u304b\u3089\u6210\u308a\u307e\u3059\u3002\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30c7\u30fc\u30e2\u30f3\u306f\u3001\u5404 Quagga \u304c\u52d5\u304f\u30de\u30b7\u30f3\u540c\u58eb\u3067 RIP \u3084 OSPF, BGP \u306a\u3069\u3001\u305d\u308c\u305e\u308c\u306e\u901a\u4fe1\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u304a\u558b\u308a\u3059\u308b\u30c7\u30fc\u30e2\u30f3\u3067\u3001RIP \u306a\u3089\u3070 \"ripd\", OSPF \u306a\u3089\u3070 \"ospfd\" \u3068\u3044\u3046\u5f62\u3067\u5b58\u5728\u3057\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u30b3\u30a2\u30c7\u30fc\u30e2\u30f3\u306e zebrad \u306f\u3001\u5404\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30c7\u30fc\u30e2\u30f3\u304b\u3089\u306e\u8981\u6c42\u306b\u5fdc\u3058\u3066\u3001\u30ab\u30fc\u30cd\u30eb\u306e\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30c6\u30fc\u30d6\u30eb\u306e\u64cd\u4f5c\u3092\u5b9f\u65bd\u3057\u307e\u3059\u3002<\/p>\n<p><a href='http:\/\/labs.gree.jp\/blog\/wp-content\/uploads\/2014\/06\/architecture.png'><img src='http:\/\/labs.gree.jp\/blog\/wp-content\/uploads\/2014\/06\/architecture.png' width=\"100%\" height=\"100%\" \/><\/a><\/p>\n<p>\u3000\u305d\u308c\u305e\u308c\u306e\u4ed5\u7d44\u307f\u3084\u51e6\u7406\u306e\u6d41\u308c\u306b\u3064\u3044\u3066\u306f\u3001\u5f8c\u8ff0\u306e \"zebra \u306e\u5b9f\u88c5\" \u3067\u898b\u3066\u3086\u304d\u307e\u3059\u3002\u307e\u305a\u306f\u3001\u7c21\u5358\u306b Quagga \u306e\u4f7f\u3044\u65b9\u306b\u3064\u3044\u3066\u304a\u8a71\u3057\u307e\u3059\u3002<\/p>\n<h2>Quagga \u306e\u4f7f\u3044\u65b9<\/h2>\n<p>\u3000\u6982\u306d Quagga \u304c\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3055\u308c\u305f\u74b0\u5883\u305d\u308c\u305e\u308c\u306b\u304a\u3044\u3066\u4ed5\u69d8\u3059\u308b\u901a\u4fe1\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30c7\u30fc\u30e2\u30f3\u3068 zebra \u306e\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u3092\u7528\u610f\u3057\u3066\u3084\u308a\u3001\u305d\u308c\u305e\u308c\u306e\u30c7\u30fc\u30e2\u30f3\u30d7\u30ed\u30bb\u30b9\u3092\u8d77\u52d5\u3055\u305b\u308b\u3060\u3051\u3067\u3001\u5404\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30bb\u30b0\u30e1\u30f3\u30c8\u306b\u63a5\u7d9a\u3059\u308b\u30ce\u30fc\u30c9\u9593\u3067\u901a\u4fe1\u304c\u884c\u3048\u307e\u3059\u3002<br \/>\n\u3000\u4ee5\u4e0b\u306e\u56f3\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u74b0\u5883\u306e quagga01 \u3068 quagga02 \u3067\u305d\u308c\u305e\u308c Quagga \u3092\u52d5\u304b\u3057\u3066\u307f\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u3001zebrad \u3068 ripd \u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30c7\u30fc\u30e2\u30f3\u3092\u8d77\u52d5\u3055\u305b\u3001172.16.10.0\/24 \u3068 172.16.20.0\/24 \u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u9593\u3067\u306e\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u69d8\u5b50\u3092\u898b\u3066\u307f\u307e\u3059\u3002<\/p>\n<p><a href='http:\/\/labs.gree.jp\/blog\/wp-content\/uploads\/2014\/06\/network.png'><img src='http:\/\/labs.gree.jp\/blog\/wp-content\/uploads\/2014\/06\/network.png' width='100%' height='100%' \/><\/a><\/p>\n<p>\u3000\u307e\u305a\u305d\u308c\u305e\u308c\u306e\u30eb\u30fc\u30bf\u30de\u30b7\u30f3\u306b\u304a\u3051\u308b zebrad \u3068 ripd \u306e\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u3092\u898b\u3066\u307f\u307e\u3059\u3002\u3053\u3053\u3067\u306f hostname \u3092\u9664\u304d\u3001\u4e21\u30de\u30b7\u30f3\u8a2d\u5b9a\u5185\u5bb9\u306f\u540c\u3058\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<pre>\nohyama@quagga01:~$ sudo cat \/usr\/local\/etc\/zebra.conf | grep -v \"^\\!\" | uniq\nhostname quagga01\npassword zebra\n\nlog file \/var\/log\/quagga\/zebra.log\nlog syslog\nohyama@quagga01:~$\n<\/pre>\n<pre>\nohyama@quagga01:~$ sudo cat \/usr\/local\/etc\/ripd.conf | grep -v \"^\\!\" | uniq\nhostname quagga01\npassword zebra\nlog file \/var\/log\/quagga\/ripd.log\nlog stdout\nlog syslog\nrouter rip\n version 2\n network 172.16.10.0\/24\n network 172.16.20.0\/24\n network 192.168.0.0\/16\nline vty\nohyama@quagga01:~$ \n<\/pre>\n<p>\u3000zebra.conf \u3067\u306f\u3001\u30db\u30b9\u30c8\u540d\u3068 zebra \u306e\u4eee\u60f3\u7aef\u672b (vtysh) \u3078\u306e\u30ed\u30b0\u30a4\u30f3\u30d1\u30b9\u30ef\u30fc\u30c9\u3068\u30ed\u30b0\u51fa\u529b\u306e\u8a2d\u5b9a\u3060\u3051\u3057\u3066\u3044\u307e\u3059\u3002<br \/>\n\u3000ripd.conf \u3067\u306f\u3001\u305d\u308c\u305e\u308c 172.16.10.0\/24, 172.16.20.0\/24 \u305d\u3057\u3066 192.168.0.0\/16 \u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u6709\u52b9\u306b\u8a2d\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002\u305d\u3057\u3066\u3001\u305d\u308c\u305e\u308c\u306e\u5404\u30ce\u30fc\u30c9\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u306b\u5c5e\u3055\u306a\u3044\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u60c5\u5831\u3092 rip2 \u30d7\u30ed\u30c8\u30b3\u30eb\u306b\u3088\u3063\u3066\u3001\u3069\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u306e\u5148\u306b\u3069\u308c\u3060\u3051\u96e2\u308c\u3066\u5b58\u5728\u3059\u308b\u304b\u3092\u8abf\u3079\u307e\u3059\u3002<br \/>\n\u3000\u7d9a\u3044\u3066\u4e21\u30eb\u30fc\u30bf\u30de\u30b7\u30f3\u3067 zebra \u3092\u8d77\u52d5\u3055\u305b\u307e\u3059\u3002\u30dd\u30fc\u30c8 2601 \u306b\u5bfe\u3059\u308b telnet \u3067 zebra \u306e\u4eee\u60f3\u7aef\u672b (vty) \u74b0\u5883\u306b\u30ed\u30b0\u30a4\u30f3\u3067\u304d\u307e\u3059\u3002\u3053\u3053\u3067\u305d\u308c\u305e\u308c\u306e\u30de\u30b7\u30f3\u306b\u304a\u3051\u308b\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30c6\u30fc\u30d6\u30eb\u3092\u898b\u3066\u307f\u307e\u3059\u3002<\/p>\n<p><a href='http:\/\/labs.gree.jp\/blog\/wp-content\/uploads\/2014\/06\/config2.png'><img src='http:\/\/labs.gree.jp\/blog\/wp-content\/uploads\/2014\/06\/config2.png' width='100%' height='100%' \/><\/a><\/p>\n<p>\u3000\u3069\u3061\u3089\u3082\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30de\u30b7\u30f3\u306b\u76f4\u63a5\u63a5\u7d9a\u3057\u3066\u3044\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3057\u304b\u6301\u3063\u3066\u3044\u307e\u305b\u3093\u3002\u3053\u3053\u3067\u305d\u308c\u305e\u308c\u306e\u30de\u30b7\u30f3\u3067 ripd \u3092\u8d77\u52d5\u3055\u305b\u308b\u3068\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30c6\u30fc\u30d6\u30eb\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><a href='http:\/\/labs.gree.jp\/blog\/wp-content\/uploads\/2014\/06\/config3.png'><img src='http:\/\/labs.gree.jp\/blog\/wp-content\/uploads\/2014\/06\/config3.png' width='100%' height='100%' \/><\/a><\/p>\n<p>\u3000\u30c7\u30fc\u30bf\u30d7\u30ec\u30fc\u30f3\u3092\u901a\u3057\u3066 RIP \u30a8\u30f3\u30c8\u30ea\u304c\u4ea4\u63db\u3055\u308c\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30c6\u30fc\u30d6\u30eb\u306b 172.16.10.0\/24 \u3068 172.16.20.0\/24 \u304c\u8ffd\u52a0\u3055\u308c\u307e\u3057\u305f\u3002\u3053\u306e\u72b6\u614b\u3067\u305d\u308c\u305e\u308c\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u63a5\u7d9a\u3059\u308b host1, host2 \u9593\u3067\u901a\u4fe1\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2>zebra \u306e\u5b9f\u88c5<\/h2>\n<p>\u3000\u7d9a\u3044\u3066 Quagga \u306e\u30b3\u30a2\u30d7\u30ed\u30bb\u30b9 zebra \u306e\u4e2d\u8eab\u3092\u898b\u3066\u3044\u304d\u307e\u3059\u3002\u3053\u306e\u8fba\u308a\u306e\u52d5\u4f5c\u3092\u628a\u63e1\u3059\u308b\u3053\u3068\u3067\u3001zebra \u306e\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30c7\u30fc\u30e2\u30f3\u3092\u81ea\u4f5c\u3059\u308b\u969b\u306e\u7406\u89e3\u306e\u52a9\u3051\u306b\u306a\u308b\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n<p>zebra \u306f\u5916\u90e8\u30d7\u30ed\u30bb\u30b9\u306b\u5bfe\u3057\u3066\u4e8c\u3064\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002<br \/>\n\u3000\u4e00\u3064\u306f\u4eba\u9593\u304c\u30a4\u30f3\u30bf\u30e9\u30af\u30c6\u30a3\u30d6\u306b\u8a2d\u5b9a\u3059\u308b\u305f\u3081\u306b\u63d0\u4f9b\u3055\u308c\u3066\u3044\u308b\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9 (CLI) \u74b0\u5883\u3067\u3001\u5148\u307b\u3069\u4f7f\u3063\u3066\u898b\u305b\u305f\u3082\u306e\u306b\u306a\u308a\u307e\u3059\u3002\u30c7\u30d5\u30a9\u30eb\u30c8\u3067 2601 \u30dd\u30fc\u30c8\u306b\u5bfe\u3057\u3066 telnet \u63a5\u7d9a\u3092\u884c\u3046\u3068\u5229\u7528\u3067\u304d\u307e\u3059\u3002\u3053\u306e CLI \u74b0\u5883\u306f\u3001vtysh \u3068\u547c\u3093\u3067\u3044\u308b\u4eee\u60f3\u7aef\u672b\u306b\u3088\u3063\u3066\u5b9f\u73fe\u3055\u308c\u3066\u304a\u308a\u3001\u5404\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30c7\u30fc\u30e2\u30f3\u3082\u540c\u3058\u5b9f\u88c5\u306e\u30a4\u30f3\u30bf\u30e9\u30af\u30c6\u30a3\u30d6\u306a\u30d2\u30e5\u30fc\u30de\u30f3\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002\u3082\u3061\u308d\u3093\u3001\u5404\u4eee\u60f3\u7aef\u672b\u74b0\u5883\u304c\u63d0\u4f9b\u3059\u308b\u30b3\u30de\u30f3\u30c9\u306f\u3001zebra \u3084\u5404\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30c7\u30fc\u30e2\u30f3\u306b\u304a\u3044\u3066\u305d\u308c\u305e\u308c\u7570\u306a\u308a\u307e\u3059\u3002zebra \u3067\u5b9a\u7fa9\u3057\u3066\u3044\u308b\u30b3\u30de\u30f3\u30c9\u306f\u3001zebra_init() [ zebra\/zserv.c ] \u3067\u5b9a\u7fa9\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u3053\u3067 \"node\" \u3068\u8a00\u3063\u3066\u3044\u308b\u3082\u306e\u306f\u3001Cisco IOS \u306e\u30b3\u30de\u30f3\u30c9\u30e2\u30fc\u30c9 (*1) \u3092\u6a21\u3057\u305f\u5b9f\u88c5\u3057\u305f\u3082\u306e\u306b\u306a\u308a\u307e\u3059\u3002install_node() \u95a2\u6570\u3067\u30b3\u30de\u30f3\u30c9\u30e2\u30fc\u30c9\u3092\u751f\u6210\u3057\u3001install_element() \u95a2\u6570\u306b\u3088\u3063\u3066\u65e2\u306b\u751f\u6210\u3055\u308c\u3066\u3044\u308b\u30b3\u30de\u30f3\u30c9\u30e2\u30fc\u30c9\u306b\u5bfe\u3057\u3066\u30b3\u30de\u30f3\u30c9\u3092\u8ffd\u52a0\u3057\u307e\u3059\u3002\u5c1a\u3001\u3059\u3079\u3066\u306e\u74b0\u5883\u3067\u5171\u901a\u306b\u7528\u610f\u3055\u308c\u3066\u3044\u308b\u30b3\u30de\u30f3\u30c9\u304c\u3042\u308a\u3001\u3053\u306e\u5b9f\u88c5\u306f cmd_init() \u95a2\u6570 [lib\/command.c] \u3067\u5ba3\u8a00\u3055\u308c\u3066\u304a\u308a\u3001\u5404\u30c7\u30fc\u30e2\u30f3\u306e\u521d\u671f\u5316\u6642\u306b\u3053\u308c\u3089\u304c\u547c\u3070\u308c\u307e\u3059\u3002<\/p>\n<pre>\n\/* Initialisation of zebra and installation of commands. *\/\nvoid\nzebra_init (void)\n{\n  \/* Client list init. *\/\n  zebrad.client_list = list_new ();\n\n  \/* Install configuration write function. *\/\n  install_node (&table_node, config_write_table);\n  install_node (&forwarding_node, config_write_forwarding);\n\n  install_element (VIEW_NODE, &show_ip_forwarding_cmd);\n  install_element (ENABLE_NODE, &show_ip_forwarding_cmd);\n  install_element (CONFIG_NODE, &ip_forwarding_cmd);\n  install_element (CONFIG_NODE, &no_ip_forwarding_cmd);\n  install_element (ENABLE_NODE, &show_zebra_client_cmd);\n\n  ...\n}\n<\/pre>\n<pre>\n\/* Initialize command interface. Install basic nodes and commands. *\/\nvoid\ncmd_init (int terminal)\n{\n...\n  \/* Install top nodes. *\/\n  install_node (&view_node, NULL);\n  install_node (&enable_node, NULL);\n  install_node (&auth_node, NULL);\n  install_node (&auth_enable_node, NULL);\n  install_node (&restricted_node, NULL);\n  install_node (&config_node, config_write_host);\n\n  \/* Each node's basic commands. *\/\n  install_element (VIEW_NODE, &show_version_cmd);\n  if (terminal)\n    {\n      install_element (VIEW_NODE, &config_list_cmd);\n      install_element (VIEW_NODE, &config_exit_cmd);\n      install_element (VIEW_NODE, &config_quit_cmd);\n      install_element (VIEW_NODE, &config_help_cmd);\n      install_element (VIEW_NODE, &config_enable_cmd);\n      install_element (VIEW_NODE, &config_terminal_length_cmd);\n      install_element (VIEW_NODE, &config_terminal_no_length_cmd);\n      install_element (VIEW_NODE, &show_logging_cmd);\n      install_element (VIEW_NODE, &echo_cmd);\n      ...\n    }\n\n  ...\n}\n<\/pre>\n<p>(*1) cisco IOS (v12.2) \u306e\u30b3\u30de\u30f3\u30c9\u30e2\u30fc\u30c9 : http:\/\/www.cisco.com\/c\/en\/us\/td\/docs\/ios\/12_2\/configfun\/configuration\/guide\/ffun_c\/fcf019.html<\/p>\n<p>\u3000\u3082\u3046\u4e00\u3064\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u306f\u3001\u5404\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30c7\u30fc\u30e2\u30f3\u304c zebra \u3068\u901a\u4fe1\u3059\u308b\u305f\u3081\u306e\u3082\u306e\u3067\u3001tcp \u30dd\u30fc\u30c8\u306e 2600 \u756a\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u5404\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30c7\u30fc\u30e2\u30f3\u306f\u305d\u308c\u305e\u308c\u306e\u901a\u4fe1\u30d7\u30ed\u30c8\u30b3\u30eb\u306b\u3088\u3063\u3066\u8a2d\u5b9a\u3059\u308b\u7d4c\u8def\u60c5\u5831\u3092\u3053\u308c\u3092\u901a\u3057\u3066 zebra \u306b\u8a2d\u5b9a\u3055\u305b\u307e\u3059\u3002\u307e\u305f\u5404\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30c7\u30fc\u30e2\u30f3\u304b\u3089 zebra \u306b\u5bfe\u3057\u3066\u8a2d\u5b9a\u3092\u9001\u308b\u51e6\u7406\u306f\u3001zebra client (zclient) \u306b\u3088\u3063\u3066\u66f4\u306b\u62bd\u8c61\u5316\u3055\u308c\u3066\u304a\u308a\u3001\u5404\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30c7\u30fc\u30e2\u30f3\u306f zclient \u304c\u63d0\u4f9b\u3059\u308b API \u3092\u53e9\u304f\u3053\u3068\u3067\u884c\u3048\u307e\u3059\u3002\u73fe\u6642\u70b9\u3067 zclient \u304c\u5404\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30c7\u30fc\u30e2\u30f3\u306b\u5bfe\u3057\u3066\u63d0\u4f9b\u3059\u308b API \u306f\u3001\u4ee5\u4e0b\u306e 11 \u500b\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<pre>\nint (*router_id_update) (int, struct zclient *, uint16_t);\nint (*interface_add) (int, struct zclient *, uint16_t);\nint (*interface_delete) (int, struct zclient *, uint16_t);\nint (*interface_up) (int, struct zclient *, uint16_t);\nint (*interface_down) (int, struct zclient *, uint16_t);\nint (*interface_address_add) (int, struct zclient *, uint16_t);\nint (*interface_address_delete) (int, struct zclient *, uint16_t);\nint (*ipv4_route_add) (int, struct zclient *, uint16_t);\nint (*ipv4_route_delete) (int, struct zclient *, uint16_t);\nint (*ipv6_route_add) (int, struct zclient *, uint16_t);\nint (*ipv6_route_delete) (int, struct zclient *, uint16_t);\n<\/pre>\n<p>\u3000\u6700\u5f8c\u306b\u3001\u5404\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30c7\u30fc\u30e2\u30f3\u304b\u3089 zebra \u306b\u9001\u3089\u308c\u308b\u7d4c\u8def\u8a2d\u5b9a\u306a\u3069\u306e\u8981\u6c42\u3092\u3069\u306e\u3088\u3046\u306b\u51e6\u7406\u3059\u308b\u304b\u306e\u5b9f\u88c5\u306b\u3064\u3044\u3066\u898b\u3066\u7d42\u308f\u308a\u306b\u3057\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002zebra \u304c\u30ab\u30fc\u30cd\u30eb\u306e\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30c6\u30fc\u30d6\u30eb\u3084 NIC \u306e\u8a2d\u5b9a\u3092\u5909\u66f4\u3059\u308b\u969b\u306b\u306f\u3001RTNETLINK \u3068\u547c\u3070\u308c\u308b\u901a\u4fe1\u624b\u6bb5\u3092\u5229\u7528\u3057\u307e\u3059\u3002\u4e00\u822c\u7684\u306b\u3001\u30bd\u30b1\u30c3\u30c8\u306f\u4ed6\u306e\u30ce\u30fc\u30c9\u3068 L4 \u901a\u4fe1\u3092\u900f\u904e\u7684\u306b\u884c\u3046\u305f\u3081\u306e UNIX \u30aa\u30ea\u30b8\u30ca\u30eb\u306e\u4ed5\u7d44\u307f\u3067\u3059\u304c\u3001RTNETLINK \u306f\u30ab\u30fc\u30cd\u30eb\u3068\u901a\u4fe1\u3059\u308b\u305f\u3081\u306e\u4ed5\u7d44\u307f\u306b\u306a\u308a\u3001\u4ed6\u306e\u30bd\u30b1\u30c3\u30c8\u3068\u30a2\u30c9\u30ec\u30b9\u30d5\u30a1\u30df\u30ea\u306b\u3088\u3063\u3066\u533a\u5225\u3055\u308c\u3066\u304a\u308a\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30bd\u30b1\u30c3\u30c8\u3068\u547c\u3070\u308c\u3066\u3044\u307e\u3059\u3002\u5177\u4f53\u7684\u306b RTNETLINK \u306f\u3001\u30bd\u30b1\u30c3\u30c8\u901a\u4fe1\u306e\u4f53\u3067 netlink \u3092\u30d9\u30fc\u30b9\u3068\u3057\u305f\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3001\u30ab\u30fc\u30cd\u30eb\u306e\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u8a2d\u5b9a\u60c5\u5831\u3092\u64cd\u4f5c\u3059\u308b\u4ed5\u7d44\u307f\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30c6\u30fc\u30d6\u30eb\u3084 NIC \u306e\u8a2d\u5b9a\u60c5\u5831\u306a\u3069\u3001\u30ab\u30fc\u30cd\u30eb\u306e\u60c5\u5831\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b Open vSwitch \u306a\u3069\u3068\u3044\u3063\u305f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u95a2\u9023\u306e\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u306e\u591a\u304f\u306f\u3053\u306e\u4ed5\u7d44\u307f\u3092\u4f7f\u3063\u3066\u3044\u307e\u3059\u3002<br \/>\n\u3000zebra \u3067\u306f kernel_init() [zebra\/rt_netlink.c] \u306b\u304a\u3044\u3066\u3001\"netlink_cmd\" \u3068 \"netlink\" \u306e\u4e8c\u3064\u306e\u30bd\u30b1\u30c3\u30c8\u3092\u751f\u6210\u3057\u3066\u3044\u307e\u3059\u3002\"netlink_cmd\" \u30bd\u30b1\u30c3\u30c8\u306f\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30c6\u30fc\u30d6\u30eb\u306e\u8a2d\u5b9a\u3084\u3001NIC \u306b\u5bfe\u3059\u308b\u30a2\u30c9\u30ec\u30b9\u8a2d\u5b9a\u306a\u3069\u30ab\u30fc\u30cd\u30eb\u306b\u5bfe\u3059\u308b\u51e6\u7406\u3092\u3055\u305b\u308b\u969b\u306b\u4f7f\u7528\u3057\u307e\u3059\u3002\u307e\u305f \"netlink\" \u30bd\u30b1\u30c3\u30c8\u306f\u30ab\u30fc\u30cd\u30eb\u304b\u3089\u9001\u3089\u308c\u3066\u3044\u308b rtnetlink \u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u5f85\u3061\u53d7\u3051\u308b\u305f\u3081\u306b\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<pre>\n\/* Make socket for Linux netlink interface. *\/\nstatic int\nnetlink_socket (struct nlsock *nl, unsigned long groups)\n{\n  ...\n\n  sock = socket (AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);\n  if (sock < 0)\n    {\n      zlog (NULL, LOG_ERR, \"Can't open %s socket: %s\", nl->name,\n            safe_strerror (errno));\n      return -1;\n    }\n\n  memset (&snl, 0, sizeof snl);\n  snl.nl_family = AF_NETLINK;\n  snl.nl_groups = groups;\n\n  \/* Bind the socket to the netlink structure for anything. *\/\n  if (zserv_privs.change (ZPRIVS_RAISE))\n    {\n      zlog (NULL, LOG_ERR, \"Can't raise privileges\");\n      return -1;\n    }\n\n  ret = bind (sock, (struct sockaddr *) &snl, sizeof snl);\n\n  ...\n\n  nl->snl = snl;\n  nl->sock = sock;\n  return ret;\n}\n<\/pre>\n<pre>\n\/* Exported interface function.  This function simply calls\n   netlink_socket (). *\/\nvoid\nkernel_init (void)\n{\n  unsigned long groups;\n\n  groups = RTMGRP_LINK | RTMGRP_IPV4_ROUTE | RTMGRP_IPV4_IFADDR;\n#ifdef HAVE_IPV6\n  groups |= RTMGRP_IPV6_ROUTE | RTMGRP_IPV6_IFADDR;\n#endif \/* HAVE_IPV6 *\/\n  netlink_socket (&netlink, groups);\n  netlink_socket (&netlink_cmd, 0);\n\n  ..\n}\n<\/pre>\n<p>\u3000\u4ee5\u4e0a\u3001\u7c21\u5358\u306b zebra \u306e\u5185\u90e8\u51e6\u7406\u306b\u3064\u3044\u3066\u898b\u3066\u304d\u307e\u3057\u305f\u3002zserv \u304c zclient \u304b\u3089\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u53d7\u3051\u53d6\u308a\u3001rtnetlink \u30e1\u30c3\u30bb\u30fc\u30b8\u306b\u5909\u63db\u3057\u3066 netlink_cmd 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\u306f\u3001\u305d\u3053\u305d\u3053\u306a\u898f\u6a21\u306e\u30a4\u30f3\u30d5\u30e9\u3092\u6301\u3061\u3001\u4e14\u3064\u8155\u306b\u81ea\u4fe1\u306e\u3042\u308b\u30b5\u30fc\u30d0\u30fb\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30a8\u30f3\u30b8\u30cb\u30a2\u304c\u305f\u304f\u3055\u3093\u3044\u308b\u74b0\u5883\u306b\u304a\u3044\u3066\u306e\u307f\u4f7f\u308f\u308c\u3066\u3044\u308b\u7279\u5225\u306a\u5b58\u5728\u306b\u306a\u3063\u3066\u3044\u308b\u306e\u304c\u5b9f\u72b6\u3067\u3059\u304c\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u6a5f\u5668\u306b\u642d\u8f09\u3059\u308b OS 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\u30b9\u30a4\u30c3\u30c1\u3068\u3001\u305d\u306e\u30df\u30c9\u30eb\u30a6\u30a7\u30a2\u306b\u3064\u3044\u3066\u304a\u8a71\u3057\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002 \u67d4\u8edf\u306a IT \u30a4\u30f3\u30d5\u30e9\u3092\u76ee\u6307\u3057\u3066 \u3000\u6211\u3005\u306b\u9650\u3089\u305a IT \u30a4\u30f3\u30d5\u30e9\u306b\u643a\u308f\u308b\u30a8\u30f3 [&hellip;]<\/p>\n","protected":false},"author":121,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[],"tags":[26],"class_list":["post-10882","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","tag-nw"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/labs.gree.jp\/blog\/wp-json\/wp\/v2\/posts\/10882","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/labs.gree.jp\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/labs.gree.jp\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/labs.gree.jp\/blog\/wp-json\/wp\/v2\/users\/121"}],"replies":[{"embeddable":true,"href":"https:\/\/labs.gree.jp\/blog\/wp-json\/wp\/v2\/comments?post=10882"}],"version-history":[{"count":3,"href":"https:\/\/labs.gree.jp\/blog\/wp-json\/wp\/v2\/posts\/10882\/revisions"}],"predecessor-version":[{"id":10892,"href":"https:\/\/labs.gree.jp\/blog\/wp-json\/wp\/v2\/posts\/10882\/revisions\/10892"}],"wp:attachment":[{"href":"https:\/\/labs.gree.jp\/blog\/wp-json\/wp\/v2\/media?parent=10882"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/labs.gree.jp\/blog\/wp-json\/wp\/v2\/categories?post=10882"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/labs.gree.jp\/blog\/wp-json\/wp\/v2\/tags?post=10882"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}