Windows DatabaseebooksStatistical Information

LWE10100 : HP Server DL380 / DL360 has slow network speed under windows server 2003

Symptom:

Your server does not deliver the performance you expect

Cause:

Microsoft introduced windows server scalable networking pack and which can cause speed problems in some circumstances

Solution:

You can import the following registry key to disable the new features which should speed up the winodws network stack.

Tcp chimney does not work with
- windows firewall
- ipsec
- other firewalls
- some NDIS drivers
- IPNAT (network address translation)

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters]
"EnableTCPA"=dword:00000000
"EnableRSS"=dword:00000000
"EnableTCPChimney"=dword:00000000


You can also use the netsh command to enable or disable the chimey parameter:

Netsh int ip set chimney ENABLED
or
Netsh int ip set chimney DISABLED

Please look at the microsoft support site and search on 912222 for more information.

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