wireshark, viewing Abis communication

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Nordin bouchtaoui at gmail.com
Thu Jul 30 08:55:49 UTC 2009


Hi Holger,

Thnx for your offer, there is nothing to look at it than just an 
initialization process on the OML layer.
It decodes some OML messages but not all, the RSL messages are decoded 
well I think, can't completely confirm that.

For me it's important to follow the procedure of the nanobts up and 
running before handling RSL messages.
Harald posted me some traces for scanning neighbouring cells, which I 
think is important to fill the BA List.
But according to Harald these were ip.access specific messages, so how 
am I suppose to interpret that? I mean which bytes indicates a 
neighbouring cell, or how am I suppose to understand the meaning of 
certain bytes i.e. dBm level of a certain neigbouring cell and which 
ARFCN? It's like reading a piece of Frenche text without having a 
dictionarry (well, I understand a little bit french :-) ).

I don't know how you, Harald and others interpretted the messages during 
reverse-engineering. Cause I assume you don't have any technical 
documents about ip.access specific messages, except the GSM specs and 
some own experience?

Kind regards,

Nordin.
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