Fedora 5 sysctl vegas congestion control

[mike v]

All,

I am trying to load the vegas tcp congestion control stack in Fedora 5, 2.6.15 and not having much luck. I can sucessfully use the sysctl command:

sysctl -w net.ipv4.tcp_congestion_control=bic
sysctl -w net.ipv4.tcp_congestion_control=reno

But when I try:

sysctl -w net.ipv4.tcp_congestion_control=vegas

I get:

error: "No such file or directory" setting key "net.ipv4.tcp_congestion_control"

If I understand things correctly vegas should be in the kernel. However, I am not sure where the sysctl command looks for the congestion control variables. This could be a simple path problem or I need to load the additional congestion control mechanisms.

We are trying to test vegas against reno in a lab environment. Any help would be greatly appreciated.

thanks,
m vossberg