GPRS / OsmoSGSN status update

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Sylvain Munaut 246tnt at gmail.com
Sat Jul 3 18:52:21 UTC 2010


Hi,

> So everyone who has access to a nanoBTS: Try it now.

I just tried it again, updating all the components.

And unfortunately it seems it doesn't work for me anymore.

osmo-sgsn says :

<0016> gprs_bssgp.c:343 BSSGP TLLI=0xe7e2fc84 UPLINK-UNITDATA
<0017> gprs_llc.c:410 LLC SAPI=1 C   FCS=0xea1c55(WRONG) CMD=UI DATA

several time when a phones tries to connect. I never used to have FCS
errors before.

VTY shows there is a mm-context but no pdp-context. Also several LLC entities.

Not quite sure what's going on yet ... (my gprs knowledge is quite limited ATM)



> The build/config
> instructions haven't changed from what I described last time when I wrote
> a GPRS status update to this list.

There is also a howto here: http://openbsc.osmocom.org/trac/wiki/OpenBSC_GPRS

Cheers,

    Sylvain




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