wireshark, viewing Abis communication

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Nordin bouchtaoui at gmail.com
Fri Jul 31 13:23:53 UTC 2009


Hi guys,

In GSM 12.21 there is a mistype. In par. 8.8.1 State Changed Event 
Report, it says Length of Availability Status is >= 2, but actually it's 
 >=4. Cause if you look at part. 9.4.7, you have 1 octet for Attr. Id. 
(T), 2 octets of Length (L) and Avail. State (V), which could contain 
one or more octets.

I found this fault when I was analyzing pcap with Wireshark and gsm 
spec. 12.21.





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