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@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: