{"id":2951,"date":"2015-06-22T21:53:11","date_gmt":"2015-06-22T20:53:11","guid":{"rendered":"http:\/\/www.edwardsd.co.uk\/work\/?p=2951"},"modified":"2015-06-22T21:55:21","modified_gmt":"2015-06-22T20:55:21","slug":"jumboframes-test","status":"publish","type":"post","link":"https:\/\/www.edwardsd.co.uk\/work\/2015\/06\/jumboframes-test\/","title":{"rendered":"JumboFrames Test \/ Command Line"},"content":{"rendered":"<p>I usually configure JumboFrames on iSCSI devices. The quickest way to do this is with a direct Ethernet cable from iSCSI to Server (Configuring seperate LAN IPS for both devices)<br \/>\nTo test that JumboFrames is enabled on the network cards I use the PING method and modify the frame size. Default packet sizes are 1500bytes (MTU).<\/p>\n<p>192.168.1.45 (Is configured for Jumbo Frames) &#8211; Althought the Jumboframe <a href=\"https:\/\/en.wikipedia.org\/wiki\/Maximum_transmission_unit\" target=\"_blank\">MTU<\/a> is 9000bytes there are some overheads in the packets therefore you need to use an MTU of 8972bytes<\/p>\n<p>172.16.232.35 (Is NOT configured for Jumbo Frames) &#8211; You can see below the packets fail with &#8220;<a href=\"https:\/\/technet.microsoft.com\/en-us\/library\/cc958612.aspx\" target=\"_blank\">Packet needs to be fragmented but DF set<\/a>&#8221;<\/p>\nngg_shortcode_0_placeholder\n","protected":false},"excerpt":{"rendered":"<p>I usually configure JumboFrames on iSCSI devices. The quickest way to do this is with a direct Ethernet cable from iSCSI to Server (Configuring seperate LAN IPS for both devices) To test that JumboFrames is enabled on the network cards I use the PING method and modify the frame size. Default packet sizes are 1500bytes [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[21,13],"tags":[],"class_list":["post-2951","post","type-post","status-publish","format-standard","hentry","category-code","category-guide"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pOPt8-LB","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.edwardsd.co.uk\/work\/wp-json\/wp\/v2\/posts\/2951","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.edwardsd.co.uk\/work\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.edwardsd.co.uk\/work\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.edwardsd.co.uk\/work\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.edwardsd.co.uk\/work\/wp-json\/wp\/v2\/comments?post=2951"}],"version-history":[{"count":4,"href":"https:\/\/www.edwardsd.co.uk\/work\/wp-json\/wp\/v2\/posts\/2951\/revisions"}],"predecessor-version":[{"id":2972,"href":"https:\/\/www.edwardsd.co.uk\/work\/wp-json\/wp\/v2\/posts\/2951\/revisions\/2972"}],"wp:attachment":[{"href":"https:\/\/www.edwardsd.co.uk\/work\/wp-json\/wp\/v2\/media?parent=2951"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.edwardsd.co.uk\/work\/wp-json\/wp\/v2\/categories?post=2951"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.edwardsd.co.uk\/work\/wp-json\/wp\/v2\/tags?post=2951"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}