Are you using Sun Ray downstream encryption? If so, DTUs are probably working doubly hard to decode both the VPN layer encryption and the Sun Ray protocol encryption. Unfortunately I don't currently know of a way to disable encryption only for certain subnets. I tried filing an RFE for it about 6 months ago (CR 6847293), but I don't think it's been worked on. Our current alternative has been to run with upstream encryption only (i.e. keyboard and mouse input) since that doesn't seem to have a noticeable performance impact and adds some security.
William Yang On Wed, 24 Feb 2010 14:09:58 -0500, Steven Gelsie <[email protected]> wrote: > Recently we ran a test with thirty employees simultaneously using > their Sun Rays (DTU ) from home and the performance varied per user but > in general the performance was poor. The DTU connects to the VPN > gateway and then to the sunray servers. We have three sunray servers ( > Two V240 on one T2000) all running Solaris 10 5/09 all have 1G network > connection. Most users then use uttsc (Sun's RDP software) to connect > to their desktops. I am trying to find out what is causing the > performance issue. The issue did not seem to be the sunray servers so I > thought it might be a network issue, like packet fragmentation or VPN > gateway bandwidth. Our VPN gateway is a CISCO box with a 115Mmps > internet connection. What would be a normal VPN gateway bandwidth > allotment for DTU ( 400K) ? How would you know if it is a > fragmentation issue ? Any suggestion to improve performance would be > appreciated. I wrote a simple script to gather DTU info (it still > needs a little work) but let me know if you want it. The script uses a > combination of mconnect, utquery, utcapture and utdesktop. > > Steve _______________________________________________ SunRay-Users mailing list [email protected] http://www.filibeto.org/mailman/listinfo/sunray-users
