TCP offloading for 2008 servers

[adithyaudupa]

Hi All,

While disabling TCP offloading on Windows 2008 servers, do we need to apply any MS patches?

Regards,

Adithya

[geoff]

Not that I know of.

Regards,

Geoff

[adithyaudupa]

Hi Goeff,

Thanks for the reply.

Then we just need tp disable the ipv4 offloading settings in the NIC configuration right? do we need to change anything on the registry?

Regards,

Adithya

[niall.doherty]

Hi, I was given this by TAC earlier today...but it is for Windows 2003:

https://supportforums.cisco.com/docs/DOC-9222

Niall

[adithyaudupa]

Hi Niall,

Yes right...The MS patch is applicable for 2003 servers. Not for 2008 servers.

Regards,

Adithya

[adithyaudupa]

Hi Geoff,

In 2008 we have 3 offload parameters for IPV4. i.e checksum offload, large send offload and TCP connection offload. After disabling these 3 do we need to add any registry to disable the offload parameters globally?

P.S : for 2003 we added a registry called

• dword DisableTaskOffload = 1 in the below path
  
• HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters
  
• 
  

Thanks and Regards,

Adithya

[geoff]

I was sure there were more than just 3 things to change on the NIC. I don't have access to my W2008 servers until I get to work, but I recall more than 3 things. Isn't there also Rx and Tx settings and RSS?

Regards,

Geoff