{"id":13113,"date":"2012-07-06T15:59:08","date_gmt":"2012-07-06T14:59:08","guid":{"rendered":"https:\/\/aidanfinn.com\/?p=13113"},"modified":"2012-07-06T15:59:08","modified_gmt":"2012-07-06T14:59:08","slug":"notesthe-new-hyper-v-extensible-switch-in-ws2012","status":"publish","type":"post","link":"https:\/\/aidanfinn.com\/?p=13113","title":{"rendered":"Notes\u2013The New Hyper-V Extensible Switch in WS2012"},"content":{"rendered":"<p>These are my notes from <a href=\"http:\/\/channel9.msdn.com\/Events\/TechEd\/NorthAmerica\/2012\/VIR307\" target=\"_blank\">VIR307<\/a> at TechEd NA 2012, with Bob Combs.<\/p>\n<p><a href=\"http:\/\/channel9.msdn.com\/Events\/TechEd\/NorthAmerica\/2012\/VIR307\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" style=\"background-image: none; border-bottom: 0px; border-left: 0px; padding-left: 0px; padding-right: 0px; display: block; float: none; margin-left: auto; border-top: 0px; margin-right: auto; border-right: 0px; padding-top: 0px\" title=\"image\" border=\"0\" alt=\"image\" src=\"https:\/\/aidanfinn.com\/wp-content\/uploads\/2012\/07\/image15.png\" width=\"404\" height=\"182\" \/><\/a><\/p>\n<p><strong><u>Cloud Demands<\/u><\/strong><\/p>\n<ul>\n<li>Integration of security and protection<\/li>\n<li>Ability to add traffic tools<\/li>\n<li>Unification of management tools<\/li>\n<li>Blur distinction between physical and virtual networks<\/li>\n<\/ul>\n<p>My experience: anything manual (setting up VLANs, firewall rules, etc) prevents self-service, and slows down deployment of traditional service.&#160; Also adds a great deal of complexity because traditional systems not designed for the scale (networks, rules, tenants) of cloud computing.&#160; Anything done in software is automatable and flexible, and could make self-service possible.<\/p>\n<p><strong><u>The Hyper-V Switch<\/u><\/strong><\/p>\n<p>Replaces the virtual network.&#160; Same GUI, does the same basic role (connect virtual network cards to physical networks) \u2026 but more:<\/p>\n<p><a href=\"https:\/\/aidanfinn.com\/wp-content\/uploads\/2012\/07\/image16.png\"><img loading=\"lazy\" decoding=\"async\" style=\"background-image: none; border-bottom: 0px; border-left: 0px; padding-left: 0px; padding-right: 0px; display: block; float: none; margin-left: auto; border-top: 0px; margin-right: auto; border-right: 0px; padding-top: 0px\" title=\"image\" border=\"0\" alt=\"image\" src=\"https:\/\/aidanfinn.com\/wp-content\/uploads\/2012\/07\/image_thumb14.png\" width=\"404\" height=\"251\" \/><\/a><\/p>\n<p><a href=\"https:\/\/aidanfinn.com\/?p=12582\" target=\"_blank\">Remember<\/a> that the switch port is an attribute of the virtual network card.&#160; Therefore your policy moves with your VM.<\/p>\n<ul>\n<li>PVLAN: Use 2 VLAN addresses to scale out with flatter networks and achieve some level of isolation<\/li>\n<li>Trunk Mode: The ability to allow multiple VLANs to go to a single VM port.<\/li>\n<li>Port Mirroring: Forward traffic from one NIC to another. Could be useful for virtual IDS.<\/li>\n<li>Unified Tracing: Trap packets for analysis.<\/li>\n<\/ul>\n<p>Interesting note: if you apply a policy on an SR-IOV vNIC then the channel will be rerouted via the virtual switch to apply the policy, thus disabling SR-IOV for that vNIC.<\/p>\n<p><strong><u>Extensibility<\/u><\/strong><\/p>\n<p>3rd party extensions, not replacements, add extra stuff that MSFT doesn\u2019t do in the switch.&#160; The extensions have to be logo tested and certified to make them reliable.&#160; The system is \u201copen\u201d to encourage growth in the ecosystem.&#160; Already more networking extensions than vSphere has replacements.<\/p>\n<p><strong><u>Extensions<\/u><\/strong><\/p>\n<p>The extensions are filters \u2013 NDIS-based Windows Filtering Platform Providers.&#160; Configuration is unique to each instance of an extensible switch on a machine.<\/p>\n<p>3 types of extension:<\/p>\n<ul>\n<li>Capture: inspect traffic and generate new traffic for report purposes, but cannot modify or drop traffic.&#160; Can have multiple capture extensions.&#160; They can be ordered\/reordered.&#160; inMon sFlow Traffic Monitoring is an example for monitoring virtual traffic.<\/li>\n<li>Filtering: Can inspect (everything that capture can do), drop, modify, and insert packets.&#160; 5Nine Virtual Firewall v3.0 is an example.&#160; <\/li>\n<li>Forwarding: Direct traffic, defining destination(s) of each packet.&#160; Forwarding extensions can capture and filter traffic.&#160; Think of it as all encompassing.&#160; What if you wanted the Hyper-V switch to look like another switch?&#160; That\u2019s what this type allows.&#160; NEC OpenFlow for Hyper-V is an example of this.&#160; The Cisco Nexus 1000V is another example.&#160; <\/li>\n<\/ul>\n<p><strong><u>SCVMM<\/u><\/strong><\/p>\n<p>VMM agent can manage the extensions via extensions to VMM.<\/p>\n<p><strong><u>PowerShell<\/u><\/strong><\/p>\n<p><a href=\"https:\/\/aidanfinn.com\/wp-content\/uploads\/2012\/07\/image17.png\"><img loading=\"lazy\" decoding=\"async\" style=\"background-image: none; border-bottom: 0px; border-left: 0px; padding-left: 0px; padding-right: 0px; display: block; float: none; margin-left: auto; border-top: 0px; margin-right: auto; border-right: 0px; padding-top: 0px\" title=\"image\" border=\"0\" alt=\"image\" src=\"https:\/\/aidanfinn.com\/wp-content\/uploads\/2012\/07\/image_thumb15.png\" width=\"404\" height=\"197\" \/><\/a><\/p>\n<p><strong><u>VM Based Traffic Tools<\/u><\/strong><\/p>\n<ul>\n<li>Can run in VM, as a switch extension, or as a host service<\/li>\n<li>Monitoring Port copies traffic to VM<\/li>\n<li>Traffic trunked to VM before distributing to other VMs (trunk mode on port)<\/li>\n<li>Capture extension echo traffic to service<\/li>\n<li>Extension pipe\/tunnel traffic to a destination<\/li>\n<\/ul>\n<p><strong><u>Extensible Switch ETW Tracing Example<\/u><\/strong><\/p>\n<p>Tracing events.<\/p>\n<p><a href=\"https:\/\/aidanfinn.com\/wp-content\/uploads\/2012\/07\/image18.png\"><u><\/u><img loading=\"lazy\" decoding=\"async\" style=\"background-image: none; border-bottom: 0px; border-left: 0px; padding-left: 0px; padding-right: 0px; display: block; float: none; margin-left: auto; border-top: 0px; margin-right: auto; border-right: 0px; padding-top: 0px\" title=\"image\" border=\"0\" alt=\"image\" src=\"https:\/\/aidanfinn.com\/wp-content\/uploads\/2012\/07\/image_thumb16.png\" width=\"404\" height=\"182\" \/><\/a><\/p>\n<p><strong><u>Extensible Switch Unified Tracing Example<\/u><\/strong><\/p>\n<p>Capturing packets.<\/p>\n<p><a href=\"https:\/\/aidanfinn.com\/wp-content\/uploads\/2012\/07\/image19.png\"><img loading=\"lazy\" decoding=\"async\" style=\"background-image: none; border-bottom: 0px; border-left: 0px; padding-left: 0px; padding-right: 0px; display: block; float: none; margin-left: auto; border-top: 0px; margin-right: auto; border-right: 0px; padding-top: 0px\" title=\"image\" border=\"0\" alt=\"image\" src=\"https:\/\/aidanfinn.com\/wp-content\/uploads\/2012\/07\/image_thumb17.png\" width=\"404\" height=\"184\" \/><\/a><\/p>\n<p><strong><u>Summary of Extensible Switch Benefits<\/u><\/strong><\/p>\n<p><a href=\"https:\/\/aidanfinn.com\/wp-content\/uploads\/2012\/07\/image20.png\"><img loading=\"lazy\" decoding=\"async\" style=\"background-image: none; border-bottom: 0px; border-left: 0px; padding-left: 0px; padding-right: 0px; display: block; float: none; margin-left: auto; border-top: 0px; margin-right: auto; border-right: 0px; padding-top: 0px\" title=\"image\" border=\"0\" alt=\"image\" src=\"https:\/\/aidanfinn.com\/wp-content\/uploads\/2012\/07\/image_thumb18.png\" width=\"404\" height=\"201\" \/><\/a><\/p>\n<p>There were a bunch of demo videos featuring the partner extensions that I did not take notes on.<\/p>\n<div style=\"padding-bottom: 0px; margin: 0px; padding-left: 0px; padding-right: 0px; display: inline; float: none; padding-top: 0px\" id=\"scid:0767317B-992E-4b12-91E0-4F059A8CECA8:e462e190-f160-440d-bdd0-0db1bf179c18\" class=\"wlWriterEditableSmartContent\">Technorati Tags: <a href=\"http:\/\/technorati.com\/tags\/Windows+Server+2012\" rel=\"tag\">Windows Server 2012<\/a>,<a href=\"http:\/\/technorati.com\/tags\/Hyper-V\" rel=\"tag\">Hyper-V<\/a>,<a href=\"http:\/\/technorati.com\/tags\/Virtualisation\" rel=\"tag\">Virtualisation<\/a>,<a href=\"http:\/\/technorati.com\/tags\/Networking\" rel=\"tag\">Networking<\/a><\/div>\n","protected":false},"excerpt":{"rendered":"<p>These are my notes from VIR307 at TechEd NA 2012, with Bob Combs. Cloud Demands Integration of security and protection Ability to add traffic tools Unification of management tools Blur distinction between physical and virtual networks My experience: anything manual (setting up VLANs, firewall rules, etc) prevents self-service, and slows down deployment of traditional service.&#160; &hellip; <a href=\"https:\/\/aidanfinn.com\/?p=13113\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Notes\u2013The New Hyper-V Extensible Switch in WS2012&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[14],"tags":[181,80,195,118],"class_list":["post-13113","post","type-post","status-publish","format-standard","hentry","category-eventnotes","tag-hyper-v","tag-networking","tag-virtualisation","tag-windows-server-2012"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.8 - aioseo.com -->\n\t<meta name=\"description\" content=\"These are my notes from VIR307 at TechEd NA 2012, with Bob Combs. 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