{"id":58,"date":"2011-05-16T12:45:46","date_gmt":"2011-05-16T10:45:46","guid":{"rendered":"http:\/\/www.zed-network.fr\/blog\/?p=58"},"modified":"2011-05-16T15:41:42","modified_gmt":"2011-05-16T13:41:42","slug":"srr-queue-shape-and-share","status":"publish","type":"post","link":"https:\/\/zed-network.fr\/?p=58","title":{"rendered":"SRR-QUEUE Shape and Share"},"content":{"rendered":"

Comprehension des valeurs Share et Shape.<\/h2>\n

Si shape = 0 cela signifie que la queue ne participe pas au shaping. Shape est l’inverse de la valeur multipli\u00e9 par la BP.<\/p>\n

Exemple :
\nNous avons une interface FastEthernet avec une BP de 100Mbps.<\/p>\n

 <\/p>\n

int fa0\/1\r\nsrr-queue bandwidth shape 3 0 0 0\r\nsrr-queue bandwidth share 1 70 25 5<\/pre>\n
Voila comment interpr\u00e9ter les r\u00e9sultats.<\/p>\n
BP total = 100 Mbps car interface FastEthernet<\/p>\n
Shape est une limitation et r\u00e9servation de la BP Total
\nShare est un partage la BP Total – BP Shape.<\/p>\n
Nous avons donc un point de 3 sur la queue 1 avec un share de 100. 1 dans share ne sert ici \u00e0 rien c’est juste la valeur minimum.
\nDonc nous avons un total de 100 en share avec une BP de 100Mbps et un point de 3 sur les 100Mbps. Soit 1\/3*100 = 33 Mbps sur la Queue 1.<\/p>\n
srr-queue bandwitdh shape 3 0 0 0<\/pre>\n
Nous avons donc 100 – 33 = 77Mbps restants \u00e0 partager sur les Queues 2 \u00e0 4 avec les points associ\u00e9es.<\/p>\n
srr-queue bandwith share 1 70 25 5<\/pre>\n
Queue 2 = 70\/(total share moins le 1 de la queue 1) x la bande passante restante => 70 \/ (70 + 25 + 5) * 77 =>0.7 * 77 = 53.9Mbps
\nQueue 3 = 25\/100*77 =  19.25Mbps
\nQueue4 = 5\/100*77 = 3.85 Mbps<\/p>\n
Exemple 2 :<\/h3>\n
Nous voulons 25Mbps sur la queue 1 et 2. Et nous souhaitons 70% de la bande passante restante sur la queue 3 et 30% sur la Queue 4.<\/p>\n
srr-queue bandwidth shape 4 4 0 0\r\n srr-queue bandwidth share 1 1 7 3<\/pre>\n
Explication :<\/p>\n
Total share = 10
\nBP = 100Mbps
\nQueue 1 = 1\/4*100 = 25Mbps
\nQueue 2 = 1\/4*100 = 25Mbps
\nQueue 3 = 100 – Queue1 + Queue2 * 0.7 = 35%
\nQueue 4 = 100 – Queue1 + Queue2 * 0.3 = 15%<\/p>\n","protected":false},"excerpt":{"rendered":"
Comprehension des valeurs Share et Shape. Si shape = 0 cela signifie que la queue ne participe pas au shaping. Shape est l’inverse de la valeur multipli\u00e9 par la BP. Exemple : Nous avons une interface FastEthernet avec une BP de 100Mbps.   int fa0\/1 srr-queue bandwidth shape 3 0 0 0 srr-queue bandwidth share […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"footnotes":""},"categories":[8],"tags":[],"class_list":["post-58","post","type-post","status-publish","format-standard","hentry","category-qos"],"_links":{"self":[{"href":"https:\/\/zed-network.fr\/index.php?rest_route=\/wp\/v2\/posts\/58","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/zed-network.fr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/zed-network.fr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/zed-network.fr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/zed-network.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=58"}],"version-history":[{"count":3,"href":"https:\/\/zed-network.fr\/index.php?rest_route=\/wp\/v2\/posts\/58\/revisions"}],"predecessor-version":[{"id":60,"href":"https:\/\/zed-network.fr\/index.php?rest_route=\/wp\/v2\/posts\/58\/revisions\/60"}],"wp:attachment":[{"href":"https:\/\/zed-network.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=58"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zed-network.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=58"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zed-network.fr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=58"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}