opensand team mailing list archive

[Jussi Isokangas <jussi.t.isokangas@xxxxxxxxxxxxxx>]

Hi,
Thank you! Now it works. Max result was about 20Mbits/s regardless values.
Here is enclosed statistics. Sometimes it accepts over (iperf 15m), but in
most case over 15m ST disconnects

Br, Jussi






On 17 February 2014 15:24, Julien BERNARD <jbernard@xxxxxxxxxxxxxxxxxxx>wrote:

> 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
>
>
>
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