[svlug] Reprise: Adjusting retransmission parameters

[Karen Shaeffer]

On Mon, Feb 19, 2001 at 07:17:27AM -0800, Eric Nickell wrote:
> 
> Is there no way to recharacterize the retransmission parameters?
> 
> > The main problem is that I'm using Sprint Wireless. (No DSL, no cable
> > modems available in my area.) The medium is very bursty. High
> > throughput, long latency, and dropped packets ranging from 1-2% to more
> > than 50%, depending on time of day.
> > 
> > I suspect (but don't know for sure) that the dropped packets are being
> > lost from my house to their antenna, not the other way around.
> > Moreover, I suspect that I could improve the situation (not fix, just
> > improve) by adjusting the time my linux box waits before retransmitting
> > a packet.  I have looked through the documetation for the /proc
> > variables, but if there's something relevant there, I didn't recognize
> > it.
> > 
> > My setup is a fairly vanilla install of RH7.0, sitting behind a Ravelin
> > VPN box.

Hi Eric,

Did you look here?

/usr/src/linux-2.4.0/Documentation/networking/ip-sysctl.tx

It defines all your /proc options in there. You probably want to use a
2.4.x kernel--preferrably 2.4.1 or newer. After you look around in
there, come back and ask additional questions with a bit more specificity.

HTH
c,
-- 
 Karen Shaeffer
 Neuralscape; Santa Cruz, Ca. 95060
 shaeffer at neuralscape.com  http://www.neuralscape.com