\n\u25cb VDX\/VCS\u306eMTU\u306b\u3064\u3044\u3066
\n<\/p>\n
\u4eee\u60f3\u5316\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u306eStorage\u3092iSCIS or NFS(notSAN)\u3067\u69cb\u6210\u3057\u3066\u3001
\nVDX\/VCS(Eth Fabric)\u306e\u3046\u3048\u306b\u306e\u305b\u308b\u5834\u5408\u3001
\njamboFrame\u5bfe\u5fdc\u306e\u305f\u3081MTU\u306f\u5927\u304d\u304f\u5909\u66f4\u3059\u308b\u3068\u601d\u3044\u307e\u3059\u3002
\nVDX\u306eMTU\u306f\u6700\u5927 9216(byte)\u307e\u3067\u8a2d\u5b9a\u3067\u304d\u307e\u3059\u304c\u3001\u305d\u306e\u3042\u305f\u308a\u306e\u30e1\u30e2\u3067\u3059\u3002<\/p>\n
\r\n\u25a1 MTU\u306e\u8a2d\u5b9a<\/U>\r\n\r\n\uff11\uff0eISL port\u306f\u30c7\u30d5\u30a9\u30eb\u30c89216\u3067\u5909\u66f4\u3067\u304d\u306a\u3044\u3002\r\n\uff12\uff0eswitch port\u306fIF\u5358\u4f4d\u3067\u8a2d\u5b9a\u53ef\u80fd\r\n (config-if) # mtu 9216\r\n\r\n\u25cb\u30de\u30cb\u30e5\u30a2\u30eb\u304b\u3089\u306e\u629c\u7c8b\r\n----------------\r\nSelecting the MTU\r\nAlways set the switch MTU to the maximum host MTU plus 100 bytes. This method is recommended because \r\nthe definition of MTU sometimes varies among different vendors. If the switch MTU is set to the same as the \r\nconnected host MTU, packets could be dropped.\r\n----------------\r\nswitch\u306eMTU\u306fhost\u306eMTU\u304b\u3089100byte\u304f\u3089\u3044\u591a\u3081\u306b\u8a2d\u5b9a\u3057\u3068\u304b\u306a\u3044\u3068\u3001drop\u3059\u308b\u304b\u3082\uff1f\r\n\u3063\u3066\u304b\u3044\u3066\u307e\u3059\u304c\u3001\u3069\u3046\u3044\u3046\u3053\u3068\u306a\u306e\u304b\uff1f\r\n\r\n\r\n\u25a1 VDX\u3067\u306eMTU\u306f\u7bc4\u56f2\u304c\u3061\u3087\u3063\u3068\u9055\u3046\r\n\u306e\u524d\u306b\u3001VCSmode\u3067\u52d5\u4f5c\u3055\u305b\u308b\u3068\u304d\u3001trill\u306b\u306a\u308b\u305f\u3081\u3001ISLport\u3067\u306f\u3001\r\nOuter transport header = 18byte\r\ntrill header = 6byte\r\n\u304c\u4ed8\u4e0e\u3055\u308c\u307e\u3059\u3002\r\n*trill\u306eframe format\r\n <- outer transport header -> <- trill header ->\r\n+-------+-------+------+-----+-------+-------+-------+----------+\r\n|outer |Outer |Outer |E- |V,R,M |Egress |Ingress|User |\r\n|dst-mac|src-mac|V-tag |type |OL,HC |Rbridge|Rbridge|Ethframe |\r\n+-------+-------+------+-----+-------+-------+-------+----------+\r\n <- 6 -> <- 6 -> < 4 > < 2 > <- 2 -> <- 2 -> <- 2 -> <- 1522 ->\r\n<\/p>\r\n\uff0aVDX\u72ec\u81ea\u5b9f\u88c5\u3067\u3001\u3055\u3089\u306b8byte\u304c\u4ed8\u4e0e\u3055\u308c\u3066\u3044\u308b\u3089\u3057\u3044\u3002\r\n\u3067\u3001VDX\u306eMTU\u304c\u6307\u3059\u7bc4\u56f2\u306f\r\n
\r\n < -\u3053\u3053!!->\r\n+-------+-------+------+-----+-------+-------+-------+----------+\r\n|outer |Outer |Outer |E- |V,R,M |Egress |Ingress|User |\r\n|dst-mac|src-mac|V-tag |type |OL,HC |Rbridge|Rbridge|Ethframe |\r\n+-------+-------+------+-----+-------+-------+-------+----------+\r\n <- 9216 ->\r\n<\/p>\u306a\u306e\u3067\u3042\u308b\u3002\r\nUser Ethfram\u306e\u4e2d\u8eab\u306f\u3001\r\n
\r\n+-------+-------+------+-----+------------------+-----+\r\n|dst-mac|src-mac|V-tag |type | data | FCS |\r\n+-------+-------+------+-----+------------------+-----+\r\n <- 6 -> <- 6 -> < 4 > < 2 > <- variable -> < 4 >\r\n<\/p>\r\n\u306a\u306e\u3067Host\u304c\u3044\u3046MTU\u306f\u4e0a\u8a18\u306edata \u90e8\u5206\u306a\u306e\u3067\u3001\r\n9216 - (6+6+4+2+4) = 9194\r\n\u304chost\u306b\u8a2d\u5b9a\u3067\u304d\u308b\u6700\u5927MTU\u3068\u306a\u308b\u3002\r\n\r\n\u25a1\u6ce8\u610f\u70b9\r\nHost\u304b\u3089Untag\u3067\u306f\u3044\u3063\u3066\u304d\u3066\u3082\u3001trill\u6642\u306b\u3001Inner\u306eframe\u306b\u3082tag(4byte)\u304c\u8ffd\u52a0\u3055\u308c\u307e\u3059\u3002\r\n\r\n(\u8ffd\u8a18)\r\nBrocade\u306eEth Fabric\u306f\u7279\u306b\u3001User\u306b\u8a2d\u5b9a\u3055\u305b\u308b\u3053\u3068\u306a\u304f\u3001\u7a76\u6975\u306fconfig-less\u307e\u3067\u3081\u3056\u3057\u3066\u308b\uff1f\u3068\u601d\u3046\u304f\u3089\u3044\u3067\u3059\u3002\r\n\u3051\u3069\u3001\u3053\u306e\u8fba\u3067\u306f\u307e\u3063\u305f\u3089\u3001\u3082\u308d\u30b5\u30fc\u30d0\u5c4b\u3055\u3093\u306f\u6c17\u3065\u304f\u306e\u96e3\u3057\u3044\u3093\u3058\u3083\u306a\u3044\u304b\u3068\u3002\r\n\r\n<\/pre>\n
<\/tt><\/P><\/p>\n","protected":false},"excerpt":{"rendered":"
\u25cb VDX\/VCS\u306eMTU\u306b\u3064\u3044\u3066 \u4eee\u60f3\u5316\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u306eStorage\u3092iSCIS or NFS(notSAN)\u3067\u69cb\u6210\u3057\u3066\u3001 VDX\/VCS(Eth Fabric)\u306e\u3046\u3048\u306b\u306e\u305b\u308b\u5834\u5408\u3001 jamboFrame\u5bfe\u5fdc\u306e\u305f\u3081 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10,9],"tags":[],"class_list":["post-481","post","type-post","status-publish","format-standard","hentry","category-brocade","category-ethernet"],"_links":{"self":[{"href":"https:\/\/blog.k-goo.net\/index.php?rest_route=\/wp\/v2\/posts\/481","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=481"}],"version-history":[{"count":12,"href":"https:\/\/blog.k-goo.net\/index.php?rest_route=\/wp\/v2\/posts\/481\/revisions"}],"predecessor-version":[{"id":493,"href":"https:\/\/blog.k-goo.net\/index.php?rest_route=\/wp\/v2\/posts\/481\/revisions\/493"}],"wp:attachment":[{"href":"https:\/\/blog.k-goo.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=481"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.k-goo.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=481"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.k-goo.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=481"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}