How to improve network perfomance of VMWARE server running on Windows 2003 Enterprise?
Posted on 2008-11-04
Running VMWARE server 1.7 on windows 2003 Enterprise R2 HOST.
(Dell PE 2900 with two nics, I have disabled teaming since I thought it might be the problem, no change)
File transfer speed to/from host (win 2003 ent R2) works fine.
File transfer speed to/from Guest-VMs (win 2003 and win XP) are very slow.
When I ping large packets to the guests-VMs, packets are getting dropped.
Tested rest of network works great (also note test to host works fine)
The nics are the stand Broadcoms that come with the poweredge 2900.
Any networks tweaks would be appreciated.
I get the feeling this is due to some sort of anti-DOS (Denial of Service) feature that is in Enterprise R2, I do not have this problems with Standard R2.
Add to the info I temporarily enabled TS (terminal service) on HOST (yeah I know not a good idea), and if from a guest-VM I try to TS to the host the server hangs for about 2 minutes...
Again this looks like misbehaving anti-DOS to me.