Hi Stuart,
what kind of output do you get from OsmoSGSN if you enable the DEBUG log
level for 'mm', 'ns', 'bssgp' and 'gprs' ?
Also, why don't you use wireshark to look at both the Gb as well as the GTP
protocol traces?
And what about using the VTY of the sgsn to inquire about the state of the NS,
BSSGP protocol, show the mm-contexts, if any?
There are so many ways to obtain more information on what exactly is going on,
please use them :)
--
- Harald Welte <laforge(a)gnumonks.org>
http://laforge.gnumonks.org/
============================================================================
"Privacy in residential applications is a desirable marketing option."
(ETSI EN 300 175-7 Ch. A6)