opensand team mailing list archive

[Julien BERNARD <jbernard@xxxxxxxxxxxxxxxxxxx>]

Hi Jussi,
> Additionally platform is unstable all the time (can't find each other).
>
> SAT with empty, eth0 (192.168.18.15/24 <http://192.168.18.15/24>)
> ST   with empty, eth0 (192.168.18.1/24 <http://192.168.18.1/24>) and 
> eth1 (192.168.19.1/24 <http://192.168.19.1/24>)
> GW with empty, eth0 (192.168.18.42/24 <http://192.168.18.42/24>) and 
> eth1  (192.168.42.1/24 <http://192.168.42.1/24>)
> ports:3141, 5926, 5358
> Other values are too default.
When prompted for interface for Avahi service set eth0 instead of 
keeping empty this should work better.

> ping from ST to GW works (192.168.42.3) (192.168.42.1)
> ping from GW to ST works  (192.168.18.1) (192.168.19.3) (192.168.19.1)
> ping from SAT to GW works(192.168.42.1) (192.168.42.3)
> ping from SAT to ST works (192.168.18.1) not work (192.168.19.3) 
> (192.168.19.1)

You should not have to ping from SAT to other hosts out of the 
192.168.18.0/24 lan so it seems ok like that.

> I have used firewall options ip forwarding =1. And now ufw is even 
> disable on every machine.
>
> Before emulator I have configured my interfaces:
> SAT eth0 192.168.10.2
> ST   eth0 192.168.10.3, eth1 for Workstations 192.168.20.1
> GW  eth0 192.168.10.1, eth1 for workstations 192.168.50.1 and eth2 NAT
OpenSAND should set other address on interfaces without removing this 
configuration and this should work but this is not a classic use.


Concerning your problem with dropped acks, I'm sorry but the answer I 
gave you was for a new version that is not released yet.
You should have a parameter Global > mac_layer > 
carrier_transmission_rate in this version. Try increasing it to at least 
the rate you need.

Additionally, you should use smaller FIFOs on ST (set size_max on fifo 
BE to 3000 should be sufficient) else you would have too much latency on 
the link that would have bad performances with TCP mecanisms.

Regards,

--
Julien BERNARD