{"id":14353,"date":"2013-03-19T13:19:00","date_gmt":"2013-03-19T13:19:00","guid":{"rendered":"https:\/\/aidanfinn.com\/?p=14353"},"modified":"2013-03-19T13:19:00","modified_gmt":"2013-03-19T13:19:00","slug":"simulate-a-bandwidth-challenged-wan-for-branchcache-demos-on-ws2012-hyper-v","status":"publish","type":"post","link":"https:\/\/aidanfinn.com\/?p=14353","title":{"rendered":"Simulate A Bandwidth Challenged WAN For BranchCache Demos On WS2012 Hyper-V"},"content":{"rendered":"

I just started to read a post by Keith Mayer (Microsoft) on BranchCache<\/a> and I got to wondering \u201chow could I build a nice demo rig to demonstrate this stuff?\u201d.  Way back when I started showing DFS-R in Windows Server 2008 R2, we used some network appliance that the guys called a \u201cnetwork nightmare\u201d to throttle our network and show off how efficient DFS-R could be with redundant block (cross file) replication.  I want something like that \u2026 but virtual \u2026 and free.<\/p>\n

Actually, it\u2019s really easy and effective.<\/p>\n

I\u2019ve got 2 VMs, VM01 (the client) and VM02 (the remote file server).  What I\u2019m going to do is restrict the outbound bandwidth from VM02 in the NIC settings of VM02 in Hyper-V Manager \u2013 also possible using PowerShell.<\/p>\n

Before I do, I\u2019m going log into VM01 and copy a Ubuntu 12.04 ISO from a file share on VM02 to VM01:<\/p>\n

\"image\"<\/a><\/p>\n

After a few runs, that takes 11 seconds.  Both VMs are on the same host, virtual switch, and simple subnet.  Now to hammer that.<\/p>\n

\"image\"<\/a><\/p>\n

I\u2019ve enabled bandwidth management and set Maximum Bandwidth to 10 Mbps, not an uncommon speed for branch offices.  Click OK and that\u2019s done.  There\u2019s no need to shutdown or reboot the VM.<\/p>\n

Now do the copy again \u2026<\/p>\n

\"image\"<\/a><\/p>\n

That file copy is going to take a bit longer \"Smile\"  Point proven!  Now you can head over to Keith\u2019s blog<\/a>, set up BranchCache, and show how Windows Server 2012 and Windows 8 Enterprise can add value to a business by overcoming limited bandwidth to\/from branch offices.<\/p>\n

If you want to build this out into a bigger virtual WAN, then you could do that.  Just set up a VM with multiple NICs.  It could be an appliance (I haven\u2019t looked at Vyatta in quite a while) or maybe you set up a Windows Server VM with RRAS and enable simple RIP routing.  Now you can restrict the NICs on the router to simulate a bandwidth challenged WAN.<\/p>\n

Before you comment \u2013 yes I know, this solution won\u2019t simulate latency.<\/p>\n

Technorati Tags: Hyper-V<\/a>,Virtualisation<\/a>,Networking<\/a>,Windows 8<\/a>,Windows Server 2012<\/a><\/div>\n","protected":false},"excerpt":{"rendered":"

I just started to read a post by Keith Mayer (Microsoft) on BranchCache and I got to wondering \u201chow could I build a nice demo rig to demonstrate this stuff?\u201d.  Way back when I started showing DFS-R in Windows Server 2008 R2, we used some network appliance that the guys called a \u201cnetwork nightmare\u201d to … Continue reading “Simulate A Bandwidth Challenged WAN For BranchCache Demos On WS2012 Hyper-V”<\/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":[20],"tags":[181,80,195,109,118],"class_list":["post-14353","post","type-post","status-publish","format-standard","hentry","category-hyper-v","tag-hyper-v","tag-networking","tag-virtualisation","tag-windows-8","tag-windows-server-2012"],"aioseo_notices":[],"jetpack_featured_media_url":"","amp_enabled":true,"_links":{"self":[{"href":"https:\/\/aidanfinn.com\/index.php?rest_route=\/wp\/v2\/posts\/14353","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aidanfinn.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aidanfinn.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aidanfinn.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aidanfinn.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=14353"}],"version-history":[{"count":0,"href":"https:\/\/aidanfinn.com\/index.php?rest_route=\/wp\/v2\/posts\/14353\/revisions"}],"wp:attachment":[{"href":"https:\/\/aidanfinn.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=14353"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aidanfinn.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=14353"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aidanfinn.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=14353"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}