{"id":896,"date":"2020-06-15T15:08:05","date_gmt":"2020-06-15T15:08:05","guid":{"rendered":"https:\/\/pensando.io\/?p=896"},"modified":"2021-12-27T23:58:08","modified_gmt":"2021-12-27T23:58:08","slug":"network-virtualization-over-clos-topology-the-data-path-an-interview-with-dinesh-dutt","status":"publish","type":"post","link":"https:\/\/share.mahalodigital.com\/Pensando\/network-virtualization-over-clos-topology-the-data-path-an-interview-with-dinesh-dutt\/","title":{"rendered":"Network Virtualization over Clos topology &#8211; the data path: An interview with Dinesh Dutt"},"content":{"rendered":"<p>This article was originally posted on Silvano&#8217;s blog <a href=\"https:\/\/silvanogai.github.io\/posts\/clos-nv-dp\/\">here.<\/a><\/p>\n<p><em>This is the second post in a series of four, in which I interview\u00a0<a href=\"https:\/\/www.linkedin.com\/in\/ddutt\/\">Dinesh Dutt<\/a>, a well-known engineer and author, and ask him to explain the Clos topology as applied to data center networks.<\/em><\/p>\n<p><a href=\"https:\/\/silvanogai.github.io\/posts\/clos-part1\/\">In the first post<\/a>, we covered the basic notion of a two-tier Clos topology, emphasizing that the core of the network is a layer three routed infrastructure and that the layer two domains are restricted to the edge of the network.<\/p>\n<p>In this post, Dinesh describes the basic principles of layer two network virtualization and a deep dive on\u00a0<a href=\"https:\/\/en.wikipedia.org\/wiki\/Virtual_Extensible_LAN\">VXLAN<\/a>, which is the most used network virtualization standard. The discussion is on the data plane aspects.<\/p>\n<p>The third post will continue the description of network virtualization, but it will focus on control plane considerations.<\/p>\n<p>The fourth post will describe how to build multi-tier Clos networks to scale the number of ports.<\/p>\n<p><em>This short video is an introduction to the topic of network virtualization.<\/em><\/p>\n<p><iframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/7-qYILgg5js\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\" data-mce-fragment=\"1\"><\/iframe><\/p>\n<hr \/>\n<p>The following podcast goes in more details about network virtualization, VXLAN, and Clos networks.<\/p>\n<p><iframe loading=\"lazy\" title=\"Network Virtualization and Clos topology\" src=\"https:\/\/www.podbean.com\/media\/player\/5fhyk-dfcd3a?from=yiiadmin&amp;download=1&amp;version=1&amp;skin=1&amp;btn-skin=107&amp;auto=0&amp;share=1&amp;fonts=Helvetica&amp;download=1&amp;rtl=0&amp;pbad=1\" width=\"100%\" height=\"122\" scrolling=\"no\" data-name=\"pb-iframe-player\" data-mce-fragment=\"1\"><\/iframe><\/p>\n<hr \/>\n<p>Dinesh book\u00a0<a href=\"https:\/\/www.oreilly.com\/library\/view\/cloud-native-data\/9781492045595\/\"><em>Cloud Native Data Center Networking<\/em>\u00a0published by O\u2019Reilly in 2020, ISBN 9781492045601<\/a>\u00a0has a lot of material on the topic.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/silvanogai.github.io\/assets\/images\/cloud-native-data-center-networking.png\" alt=\"Dinesh Book Cover\" \/><\/p>\n<hr \/>\n<p>My book has a brief description of Clos in chapter 2.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/silvanogai.github.io\/assets\/images\/book-cover.jpg\" alt=\"Book Cover\" \/><\/p>\n<p>You can read\u00a0<a href=\"https:\/\/www.linkedin.com\/posts\/activity-6642125779486539776-FJAj\/\">an independent review of the book here.<\/a><\/p>\n<p>The book was also listed in\u00a0<a href=\"https:\/\/solutionsreview.com\/data-storage\/the-top-10-best-cloud-storage-books-you-need-to-read-in-2020\/\">The Top 10 Best Cloud Storage Books You Need to Read in 2020.<\/a><\/p>\n<p>Don\u2019t Forget that Pearson\/Addison-Wesley has a special offer on my latest book. To save 35% on the book or eBook go to\u00a0<a href=\"https:\/\/www.informit.com\/store\/building-a-future-proof-cloud-infrastructure-a-unified-9780136624097?utm_source=pensando&amp;utm_medium=website&amp;utm_campaign=bookad\">the informit website<\/a>\u00a0and use code FUTUREPROOF during checkout to apply the discount. Offer expires December 31, 2020<\/p>\n","protected":false},"excerpt":{"rendered":"<p>This article was originally posted on Silvano&#8217;s blog here. This is the second post in<\/p>\n","protected":false},"author":21,"featured_media":755,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[6,8],"tags":[],"class_list":["post-896","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-enterprise","category-networking"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Network Virtualization over Clos topology - the data path: An interview with Dinesh Dutt - Pensando<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Network Virtualization over Clos topology - the data path: An interview with Dinesh Dutt - Pensando\" \/>\n<meta property=\"og:description\" content=\"This article was originally posted on Silvano&#8217;s blog here. 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