On Tue, 9 Feb 1999, Adrian Minta wrote:
> I need HELP !!!
> I use Linux (kernel 2.0.36 and ax25-utils-2.1.42a) for packet radio with
> a Soundcard modem set for 9600bps.
> In standard AX25 mode all works fine, but very slow (the delay over
> channel is bigger that the time needed to send one 256bytes packet).
>
> So I set /proc/sys/net/ax25/sm0/standard_window_size to 7 ( Jonathan
> Naylor told me to do that), but no use!
> Now a PC send more that one packet at a time, but the other, after
> receiving 2 packets send an ACK frame and generate an interference and
> the rest of the packets are lost.
I have the *same* problem, with mkiss (i have 2 TNCs),
the 2 machines see each other, but with a delay that is unacceptable.
I changed /etc/ax25/axparms->maxframe =4 (it was 1), and it was a bit
better. I think it has something to do with "Exponential" backoff
algorithm and the T1-T3 etc settings.
Probably the defaults have changed since previous kernels.
Additionaly, i can't access directory /proc/net/ax25/ (it's a
file, and strangely, it has only headings, not numbers).
> Could by from the way that 2 PC are connected (no noise) ?
> Could by from the soundcard modem (problems with DCD)?
> Could by from the others parameters T1 T2 etc ?
No.
No.
I think so.
I think we 'll track the problem soon.
cheers,
Fotis
