Sebastian,

On Jul 1, 2016 4:06 PM, "Sebastian Stumpf" <sebastian.stumpf87@googlemail.com> wrote:
> I ended up configuring the gsmtap interface for osmo-bts and could so see the uplink/downlink in wireshark and could see that the SI information is properly sent. But gsmtap only works for the air interface.
>
> What is the best way for logging/sniffing the communication on the A-bis interface?

A-bis (OML/RSL) are using usual TCP socket. Wireshark should detect and decode messages sent over this socket automatically.

Please excuse typos. Written with a touchscreen keyboard.

--
Regards,
Alexander Chemeris
CEO Fairwaves, Inc.
https://fairwaves.co