TCP configuration within linux

Hi everybody,


I'm trying to benchmark some of TCP variants using Linux kernel 2.6
(Debian).
Untill now, i found how to configure TCP Sack, Vegas, and Westwood.
What i need to know is that how to configure each of TCP Tahoe (not Old

Tahoe), TCP Reno, and New Reno using the same kernel.
I found somewhere that, the sysctl "net.ipv4.tcp_westwood" switches
between NewReno and Westwood ----> I'm not sure of that, does anyone
has an idea of that???
And also please, if there is a way to find the current TCP variant
running on the machine.


Thanks for your help,
Alaa