TCP Chimney - what is it and why did I have to disable it prior to a netmon trace?

[Guest Spin]

Gurus,

 

In troubleshooting for MS support recently on a case I opened with them, I

was told to disable tcp chimney (since I was running Windows Server 2003

SP2) prior to capturing a netmon trace. I am not sure why I had to disable

tcp chimney prior to capturing a netmon trace let alone what tcp chimney

even is. Any ideas?

 

--

Spin

[Guest Thee Chicago Wolf]

Re: TCP Chimney - what is it and why did I have to disable it prior to a netmon trace?

 

Re: TCP Chimney - what is it and why did I have to disable it prior to a netmon trace?

 

>In troubleshooting for MS support recently on a case I opened with them, I

>was told to disable tcp chimney (since I was running Windows Server 2003

>SP2) prior to capturing a netmon trace. I am not sure why I had to disable

>tcp chimney prior to capturing a netmon trace let alone what tcp chimney

>even is. Any ideas?

 

Did you read some of the info about TCP Chimney in the SNP overview?

http://support.microsoft.com/kb/912222

 

Or how about the White Paper if you're really bored?

http://download.microsoft.com/download/5/b/5/5b5bec17-ea71-4653-9539-204a672f11cf/TCP_Chimney.doc

 

The offloading off Chimney could skew results, I would guess, when

tracing. It might help to determine the *why* part of networking or

loads when it is disabled. Just a hunch.

 

- Thee Chicago Wolf

[Guest Shenan Stanley]

Re: TCP Chimney - what is it and why did I have to disable it prior to a netmon trace?

 

Re: TCP Chimney - what is it and why did I have to disable it prior to a netmon trace?

 

Spin wrote:

> In troubleshooting for MS support recently on a case I opened with

> them, I was told to disable tcp chimney (since I was running

> Windows Server 2003 SP2) prior to capturing a netmon trace. I am

> not sure why I had to disable tcp chimney prior to capturing a

> netmon trace let alone what tcp chimney even is. Any ideas?

 

http://www.google.com/search?q=tcp+chimney

 

--

Shenan Stanley

MS-MVP

--

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