Hi
There are two set of parameters involved in the changing of the Internet
source.

Network parameters, which can easily maintained by a program like
NetSwitcher, and TCP/IP stack parameters, which is a little hard to maintain
flexibly.

If you use large RWIN (like 256960) it is not so critical to change it
between connections.

MTU is.

You can use the following to change easily the Parameters. You would need to
Reboot each time, http://www.ezlan.net/Internet_Speed.html

Jack (MVP-Networking).





<nntp.post@gmail.com> wrote in message
news:1136480302.895435.115900@g47g2000cwa.googlegr oups.com...
Hi all-

Using a win xp pro laptop. I use it to connect to serveral different
networks:
·1.5mbs T1 at work via wifi and wired
·8.0/768 cable modem connection at home via wifi and wired
·Verizon EVDO 1xRTT on the road
·WiFi at places like Starbucks and Airports (guessing about a T1
connection to Internet)
·Dialup on the road sometimes

Ultimately, I'd love a tool that lets me save different profiles and
switch RWIN depending on the connection type.

I've done tests on DSLReports (www.dslreports.com/tweaks) and see that
depending on location and connection type I should use different rwin
settings for best performance. I can set these using drtcp, but does
anyone know of a better tool that doesn't require a reboot and will
allow for profile switching depending on where and how I am connected?

Thanks,
ken