Strange slow file copy speed problem on DL380G5

[Lofi_1]

We have 2 ISA Firewalls running on DL380G5 wich build a VPN Tunnel through a 4Mbit SDSL connection.

NET1 <=> ISA1 <=> ISA2 <=> NET2

The Problem is i copy a file from a server in NET2 to a Server in NET1 the Performance is quiet bad 600-700 KBit. But if i copy a file from NET1 to NET2 everything is fine.

A direct copy between the two ISA Servers is also fine.

We did some testing with iperf, which shows a 30% lost of packages on the UDP test.

I already did the following:
-Auto Netgotioation changed from AUTO/AUTO to 100Full/100Full on both ISA Servers
-Disabled TOE on both ISA Servers
-Disabled TCP chimney on both ISA Servers
-Disabled RSS on both ISA Servers
-Installed Hotfix KB936594 on both ISA Servers
-Updated the NIC drivers to the last Version
-Updated the NIC firmware to the last Version


More Infos:
DL 380 G5
NIC 373i
Windows 2003 Server SP2 (all Hotfixes)
ISA Server 2006 SP1

I also checked the following Thread: http://forums11.itrc.hp.com/service/forums/questionanswer.do?threadId=1158952

Yes and i also tryed the solution of the Second Problem.

[KarloChacon]

hi

so we can say issue is between ISA2 <=> NET2 ??? I mean sending file from NET2 to ISA2 is when we got the slow transfer date?

which is the model for the NET2?
what is between NET2 and ISA2?

can you run this command
hpnetsvy > nic_survey.txt in both?


regards