I attended a Microsoft technet event today and while I did glean some good information about a program of their’s (have you ever heard of System Center Operations Manager?), I gleaned some information that was even more valuable.

In vista (and apparently in server 2008) the tcp stack has drastically changed. The catch is that the changes, when implemented will improve your network connection between vista and 2008 (and even a little between server 2003). The problem is that its not enabled by default. But I now know what to do…

Open a Command Shell:

C:\ Netsh
netsh> interface tcp
netsh interface tcp> set global congestionprovider=ctcp
netsh interface tcp> set global ecncapability=enabled
netsh interface tcp> show global

Type the stuff in bold

If you did it right, when you run show global, you’ll see:

Microsoft Windows [Version 6.0.6000]
Copyright (c) 2006 Microsoft Corporation. All rights reserved.

C:\Users\mcangeli>netsh
netsh>interface tcp
netsh interface tcp>show global
Querying active state…

TCP Global Parameters
———————————————-
Receive-Side Scaling State : enabled
Chimney Offload State : enabled
Receive Window Auto-Tuning Level : normal
Add-On Congestion Control Provider : ctcp
ECN Capability : enabled
RFC 1323 Timestamps : disabled

netsh interface tcp>

How much this gains you, I have yet to learn… just thought I’d share…