{"id":459,"date":"2013-04-23T23:17:31","date_gmt":"2013-04-23T14:17:31","guid":{"rendered":"http:\/\/blog.k-goo.net\/?p=459"},"modified":"2013-04-23T23:17:31","modified_gmt":"2013-04-23T14:17:31","slug":"nsfnsr","status":"publish","type":"post","link":"https:\/\/blog.k-goo.net\/?p=459","title":{"rendered":"NSF\/NSR"},"content":{"rendered":"


\n\u25cb NSF (Non Stop Forwarding\/Graceful Restart)\u3001NSR(Non Stop Routing)
\n<\/p>\n

Cisco\/Nexus\u3067\u306f\u3001OSPF Graceful Restart\u304cdefault enable\u3068\u3044\u3046\u4e8b\u5b9f\u3092\u77e5\u3063\u3066\u3057\u307e\u3063\u305f\u306e\u3067\u3001
\nNSF\/NSR\u306b\u3064\u3044\u3066\u307e\u3068\u3081\u3066\u304a\u3053\u3046\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n

\r\n\u25a1 Non Stop Forwarding\/Graceful Restart<\/U>\r\nGraceful Restart\u306e\u624b\u9806\u6982\u7565\u306f\u3001\r\n\r\n\uff11\uff0e\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30d7\u30ed\u30bb\u30b9(OSPF,BGP)\u3092\u518d\u8d77\u52d5\u3059\u308b\u30eb\u30fc\u30bf\u304c\u96a3\u63a5\u306b\u5bfe\u3057\u3066\u3001\u4e8b\u524d\u306b\u901a\u77e5\u30d1\u30b1\u30c3\u30c8\u3092\u6295\u3052\u308b\u3002\r\n\uff12\uff0e\u96a3\u63a5\u30eb\u30fc\u30bf\u306f\u518d\u8d77\u52d5\u30eb\u30fc\u30bf\u3068\u306e\u30d4\u30a2\u304c\u5207\u308c\u3066\u3082\u76f4\u8fd1\u306eFIB\u306b\u3057\u305f\u304c\u3063\u3066Forwarding\u3092\u7d9a\u3051\u308b\u3002\r\n\uff13\uff0e\u518d\u8d77\u52d5\u304c\u7d42\u308f\u3063\u305f\u3089\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u60c5\u5831\u3092\u518d\u958b\u3057\u3001state\u306a\u72b6\u614b\u306b\u623b\u308b\u3002\r\n\r\n\uff0a\u3000IS-IS\u306a\u3069\u30bb\u30c3\u30b7\u30e7\u30f3\u30ec\u30b9\u306e\u5834\u5408\u306f\u4e8b\u524d\u901a\u77e5\u304c\u3042\u308a\u307e\u305b\u3093\u304c\u3001TCP\u30d9\u30fc\u30b9\u306e\u3088\u3046\u306a\u3082\u306e\u3067\u3042\u308c\u3070\u3001\u4e8b\u524d\u901a\u77e5\r\n\r\n\u25a1\u6761\u4ef6\r\n\u4e0a\u8a18\u306e\u52d5\u4f5c\u3092\u3059\u308b\u305f\u3081\u306b\u306f\u3001\r\n\uff11.)\u3000\u518d\u8d77\u52d5\u3059\u308b\u30eb\u30fc\u30bf\u3068\u3001\u96a3\u63a5\u30eb\u30fc\u30bf\u304cGraceful Restart\u5bfe\u5fdc\u3067\u3042\u308b\u3053\u3068\r\n      \uff0a\u307b\u3068\u3093\u3069\u306e\u6a5f\u5668\u306fdefault\u304cdisable\r\n\uff12.)  \u30d4\u30a2\u304c\u5207\u308c\u3066\u3082FIB\u304c\u6b8b\u3063\u3066\u3044\u308b\u3068\u3044\u3046\u3053\u3068\u306f\u3001control-plane\u3068data-plane\u304c\u5206\u96e2\u3055\u308c\u3066\u3044\u308b\u6a5f\u5668\u3067\u3042\u308b\u3053\u3068\r\n\u3067\u3059\u3002\r\n\r\n\u25a1\u6ce8\u610f\u70b9\r\n\uff11\uff0e\u5c0e\u5165\u3059\u308b\u30eb\u30fc\u30bf\u306e\u96a3\u63a5\u304cHelper-mode\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u5fc5\u8981\u304c\u3042\u308b\r\n\uff12\uff0e\u904b\u7528\u4e2d\u3067\u3042\u308c\u3070\u3001\u8a2d\u5b9a\u3059\u308b\u305f\u3081\u306b\u30d4\u30a2\u304c\u5207\u308c\u308b\r\n\uff13\uff0eLocal\u30eb\u30fc\u30bf\u304crestart\u4e2d\u306b\u96a3\u63a5\u304crestart\u3057\u3066\u3057\u307e\u3046\u3068\u6210\u7acb\u3057\u306a\u3044\r\n\r\n* graceful restart\u306fcontrol-plane\u3068data-plane\u304c\u5206\u96e2\u3055\u308c\u3066\u3044\u308b\u6a5f\u5668\u3067\u3042\u308c\u3070\u5b9f\u88c5\u3055\u308c\u3066\u3044\u308b\u306f\u305a\u306a\u306e\u3067\u3001\r\n\u3000\u6bd4\u8f03\u7684\u5c0e\u5165\u30cf\u30fc\u30c9\u30eb\u306f\u3072\u304f\u3044\u3068\u601d\u3044\u307e\u3059\u3002\r\n\r\n\u25a1 Non Stop Routing<\/U>\r\n\u3053\u3061\u3089\u306f\u30d7\u30ed\u30c8\u30b3\u30eb\u304c\u3069\u3046\u306e\u3068\u3044\u3046\u8a71\u3067\u306f\u306a\u304f\u3066\u3001\r\n\u6a5f\u5668\u5b9f\u88c5\u3067\u3001update\u3092stateful\u306b\u540c\u671f\u3059\u308b\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3067\u5b9f\u88c5\u3057\u3066\u3044\u308b\u304b\u3069\u3046\u304b\r\n\u3068\u3044\u3046\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\r\n\r\n\u3053\u3061\u3089\u306f\u30cf\u30fc\u30c9\u30eb\u304c\u305f\u304b\u3044\uff08\u3089\u3057\u304f\uff09\u30ad\u30e3\u30ea\u30a2\u30b0\u30ec\u30fc\u30c9\u306a\u6a5f\u5668\u3067\u306a\u3044\u3068\u5b9f\u88c5\u3057\u3066\u3044\u306a\u3044\u3067\u3057\u3087\u3046\u3002\r\n\r\n\u306a\u305c\u96e3\u3057\u3044\u306e\u304b\u3001\u5b9f\u88c5\u4e0a\u306e\u554f\u984c\u70b9\u306a\u3069\u306f\u3001MPLS2004\u3067\u306e\u767a\u8868\u8cc7\u6599\r\n\u3053\u3061\u3089<\/a>\u304c\u308f\u304b\u308a\u3084\u3059\u3044\u3067\u3059\u3002\r\n\r\n* Nexus\u306eHigh Availability and Redundancy Guide<\/a>\u3067\u78ba\u8a8d\u3059\u308b\u3068\r\n-------------------\r\n\u25cbScenarios where a stateful restart is used:\r\n\u30fbFirst recovery attempt after a process experiences problems.\r\n\u30fbISSU\r\n\u30fbUser-initiated switchover using the system switchover command.\r\n\r\n\u25cbScenarios where graceful restart is used:\r\n\u30fbSecond recovery attempt after a process experiences problems within a 4 minute interval.\r\n\u30fbManual restart of the process using the restart ospfv3 command.\r\n\u30fbActive supervisor removal.\r\n\u30fbActive supervisor reload using the reload module  command.\r\n-------------------\r\n\r\n\u3069\u306e\u30d1\u30bf\u30fc\u30f3\u3067stateful,graceful restart\u304c\u6210\u7acb\u3059\u308b\u304b\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002\r\n\u5b9f\u88c5\u30d1\u30bf\u30fc\u30f3\u306f\u6a5f\u5668\u306b\u3088\u308b\u306e\u3067\u3001\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u7b49\u3067\u30ad\u30c1\u30f3\u3068\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3067\u3057\u3087\u3046\u3002\r\n\r\n<\/p>\r\n\r\n(\u8ffd\u8a18)\r\nAlaxalA\u306e\u30de\u30cb\u30e5\u30a2\u30eb\u306f\u65e5\u672c\u8a9e\u3060\u3057\u3001\u521d\u5fc3\u8005\u5411\u304d\u3067\u89aa\u5207\u3067\u3059\u3002(graceful restart\u306b\u3064\u3044\u3066)<\/a>\r\n\u305f\u3060\u3001\u30d5\u30a9\u30eb\u30c8\u30fb\u30c8\u30ec\u30e9\u30f3\u30b9\u3092\u3046\u305f\u3063\u3066\u3044\u308b\u306e\u3067\u3059\u304c\u3001Non Stop Routing\u306fsupport\u3057\u3066\u306a\u3055\u305d\u3046\u3067\u3059\u3002\r\n\r\n<\/pre>\n
<\/tt><\/P><\/p>\n","protected":false},"excerpt":{"rendered":"
\u25cb NSF (Non Stop Forwarding\/Graceful Restart)\u3001NSR(Non Stop Routing) Cisco\/Nexus\u3067\u306f\u3001OSPF Graceful Restart\u304cdefault […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-459","post","type-post","status-publish","format-standard","hentry","category-cisco"],"_links":{"self":[{"href":"https:\/\/blog.k-goo.net\/index.php?rest_route=\/wp\/v2\/posts\/459","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.k-goo.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.k-goo.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.k-goo.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.k-goo.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=459"}],"version-history":[{"count":19,"href":"https:\/\/blog.k-goo.net\/index.php?rest_route=\/wp\/v2\/posts\/459\/revisions"}],"predecessor-version":[{"id":480,"href":"https:\/\/blog.k-goo.net\/index.php?rest_route=\/wp\/v2\/posts\/459\/revisions\/480"}],"wp:attachment":[{"href":"https:\/\/blog.k-goo.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=459"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.k-goo.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=459"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.k-goo.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=459"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}