[linux-dvb] FWD: Re: packet loss DVB-ip

[Dirk <dirk@convergence.de>]

Date: Wed, 05 Feb 2003 15:47:47 +0100
From: Alexandre CONRAD <aconrad.tlv@magic.fr>

> START (2 file(s), 8.83 MB)...
> File 1/2: <test.mpg> downloading (6572 packets)...
> File 2/2: <fill.txt> downloading (1 packets)...
> NOT COMPLETE, wait for repairing...
>
> then I cat the "info" file to show me witch packets were lost :
> 0|615*0|685*0|1147*0|1192*0|1300*0|1345*0|1459*0|1545*0|1570*0|1700*0|1725*0|1810*0|1880*0|2010*0|2035*0|2167*0|2192*0|2318*0|2343*0|2477*0|2697*0|2806*0|3005*0|3201*0|3271*0|3709*0|3779*0|3821*0|3891*0|4243*0|4288*0|4352*0|4397*0|5134*0|5179*0|5707*0|5906*0|5976*0|6104*0|6174*0|6217*0|6287*0|6415*0|6485* 
>
> 44 packets lost.
> 0,669% lost. 

I have found out that 44 packets loss is really :
166 packet lost, and 122 from these 166 recovered from FEC (5%) (44 packets)
This gives us : 2,525% truly lost from the card it self.

> Again with an other file :
>
> START (2 file(s), 11.6 MB)...
> File 1/2: <test2.mpg> downloading (8672 packets)...
> File 2/2: <fill.txt> downloading (1 packets)...
> NOT COMPLETE, wait for repairing...
>
> cat info file :
> 1|151*1|196*1|238*1|263*1|305*1|612*1|657*1|927*1|962*1|1004*1|1049*1|1559*1|1594*1|1714*1|1759*1|1801*1|1826*1|1913*1|1983*1|2025*1|2070*1|2427*1|2452*1|2497*1|2606*1|3448*1|3473*1|3551*1|3839*1|3864*1|4220*1|4265*1|4531*1|4576*1|4617*1|4642*1|4841*1|4886*1|5103*1|5193*1|5458*1|6010*1|6035*1|6122*1|6192*1|6234*1|6279*1|6854*1|6899*1|7341*1|7366*1|7408*1|7453*1|7808*1|7833*1|7957*1|7992*1|8034*1|8069*1|8110*1|8190*1|8509*1|8534* 
>
> 63 packets lost.
> 0,726% lost. 
Here, 212 lost with 149 recovered from FEC. (63 packets)
This gives us : 2,444 % truly lost from the card it self.

Regards,

--
Alexandre CONRAD
Research & Development
tel : +33 1 30 80 55 00
fax : +33 1 30 56 50 20
TLV
6, rue de la plaine
78860 - SAINT NOM LA BRETECHE
FRANCE







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