IIS 6.0 seems slow behind BIG-IP

Okay, true or false:

 

 

Scenario 1)

 

 

windows 2003 defualt is 64240. Big IP recieve window defaut is 32768 for TCP profile.

 

 

Question 1)

 

 

is this telling me that the largest window that is going to be advertised is 32768 to the client even though the windows default 64240? Would that be a bottle neck of sorts?

 

 

 

 

Scenario 2)

 

 

proxy buffer high is default 16384. This means big ip recieve window closes at half the window size.

 

 

Question 2)

 

 

IS this recieve window closed same as zero window in some way?

 

 

 

So far, all indication are that the settings on my f5 are bottle necking my server by conflicting settings. I realize this is not a knock on f5, rather my configurtaion setup not optimized. I am trying to ascetain reason behind the settings for big ip optimized profiles and how it could help performance in my case.

 

 

I tried to use wire shark to see the window size but it is inconclusivve to me. I see window size of 64k from iis server to big ip. From big ip to server is see window in the range of 8k maybe. I am un able to determine the meaning of that at this point. If someone can help a guy out that'd be great

 

 

thanks,