GPRS not coming up on NanoBTS 140

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Max Marbler madmaxmarbler at gmail.com
Tue Oct 4 07:45:49 UTC 2011


Can you post your firmware versions?

I've recently been exploring anomalous behavior which seems to follow
firmware version differences; these odd behaviors seem to have the greatest
affects on the 139/140 type units used in GPRS-enabled configurations.

Inclusive of the issues I've seen are a few 140-model units which simply do
not respond to any GPRS-related configurations with a connection to the
SGSN. My suspicion lies strongly in the firmware either not supporting GPRS
or there being a different mechanism to invoke it.

While it may be beyond the scope of the list to discuss issues relating to
vendor firmware, I am eager to solicit an off-list discussion with anyone
with more "experience" with firmware issues.

The ideal end result would ideally be two-fold:
1) To discover how firmware version affects interoperability with openbsc
2) Ultimately help more people get their setups working on the variety of
hardware floating out and about

-MM

On Fri, Sep 30, 2011 at 10:56 AM, Gus Bourg <gus at bourg.net> wrote:

> Hello all,
>
> Looking for ideas.  I have a NanoBTS Model 140 which doesn't seem to
> work with GPRS.  It never connects to the SGSN.  The openbsc/sgsn
> environment is ok - I can swap in another nano and it works fine.
> I've taken some log captures:
>
> From the nano on startup:
> http://pastebin.com/qLatWdtB
>
> OpenBSC Startup:
> http://pastebin.com/bXEhizAG
>
> moi::states:
> http://pastebin.com/9MiRRGP0
>
> In the nano startup - the two things that stand out are the complains
> about flag 3 and the NSE:
>
> 27855:DBG:OAM_IM:roleInstanceProcClearContaineeFlags: BTS:0 flag 3 not
> setting or set!
> 27855:DBG:OAM_IM:roleInstanceProcClearContaineeFlags: GPRS NSE:0 flag
> 3 not setting or set!
>
> 42142:DBG:GBHSS_STACK:bgp_error_reporter() : PROTO_ERR:
> Msg=GPRS_BGP_RL_UL_UNITDATA_REQ, Err=GPRS_NSEI_NOT_OPERATIONAL
> 42142:DBG:GBHSS_STACK:bgp_process_msg failed :
> msg=GPRS_BGP_NM_BVC_RESET_REQ err=GPRS_NSEI_NOT_OPERATIONAL
>
> Any thoughts or additional data points I should collect?
>
> Thanks,
> Gus
>
>
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