We traced the problem to a sharp increase in users using IE for browsing through terminal services, we have disabled True type fonts in IE, animations, flash etc.. etc.. and there has been a huge drop in traffic.
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increase in bandwidth (data usage) over VPN since upgrading to WIndows 2008 Terminal Services
Hi, Since upgrading to Windows 2008 terminal services from Winows 2003 terminal services we have had a huge increase in data traffic over our hardware IPSec VPN. (we pay by the GB)
Remote VPN clients are a mix of Vista, Xp and HP Thin Client and traffic (RDP traffic) has increased about 3-4 times. (using a network monitor we can see the increase in traffic is TCP:3389 (RDP))
Colour depth is 16 bit, typical things like screen savers have been disabled via GPO
Has anyone else expereinced an increase in traffic since moving to Windows 2008 terminal services and if so any solutions to get it down?
thanks
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by: nprignanoPosted on 2009-04-11 at 12:30:52ID: 24123169
There are many many factors to bandwidth usage of an RDP session. Color depth, resolution, printing, disk mapping/file transfers, clipboard mapping, audio mapping, as well as the type of applications run in remote sessions (namely, how graphic intensive the applications are).
Citrix offers hardware appliances that can optimize bandwidth, but I am not sure if there is a similar solution for Windows TS (but there probably is). Of course, that depends on your budget.
My suggestion is to look at what type of resources you need for your remote desktop connections and disable things you arent using to limit the wasted bandwidth. For example, if you do not need sound, disable it. If you aren;t transferring files from client to server or vice versa, diasable client drive mapping. Etc, etc, etc.
Also, I have heard that with Win 2008 TS, True Type Font is a resurce hog in terms of bandwidth usage. You should probably disable that as well.