Hi,

I am looking for some help debugging a nanoBTS setup with OpenBSC/SGSN/GGSN as I am struggling getting GPRS to work.

I am seeing the following error in the SGSN output:

debian4:/opt/openbsc/openbsc/src/gprs# ./osmo-sgsn -c osmo_sgsn.cfg <0011> gprs_ns.c:151 NSVCI=65534 Creating NS-VC <0011> gprs_ns.c:151 NSVCI=65535 Creating NS-VC <0011> gprs_ns.c:738 Creating NS-VC for BSS at 192.168.60.200:23000 <0011> gprs_ns.c:620 NSEI=65535 Rx NS RESET (NSVCI=0, cause=O&M intervention) <0011> gprs_ns.c:488 NSEI=101 Tx NS RESET ACK (NSVCI=101) <0011> gprs_ns.c:797 NSEI=101 Rx NS UNBLOCK <0012> gprs_bssgp.c:246 BSSGP BVCI=0 Rx RESET cause=Transmission capacity modified <0012> gprs_bssgp.c:246 BSSGP BVCI=2 Rx RESET cause=Transmission capacity modified <0012> gprs_bssgp.c:269 Cell 1-1-1-0 CI 0 on BVCI 2 <0012> gprs_bssgp.c:322 BSSGP BVCI=2 Rx BVC-UNBLOCK <0012> gprs_bssgp.c:322 BSSGP BVCI=2 Rx BVC-UNBLOCK <0012> gprs_bssgp.c:462 BSSGP BVCI=2 Rx Flow Control BVC <0012> gprs_bssgp.c:346 BSSGP TLLI=0x7f60277f Rx UPLINK-UNITDATA <0013> gprs_llc.c:428 LLC SAPI=1 C FCS=0x447ea5CMD=UI DATA <0013> gprs_llc.c:700 LLC RX: unknown TLLI 0x7f60277f, creating LLME on the fly

I came across this thread http://comments.gmane.org/gmane.comp.mobile.openbsc.general/687 which talks about a similar error but hasn't helped resolve the problem.

I have a second hand nanoBTS unit, are there any configuration settings I need to change on the unit itself to make it work with the example configs from OpenBSC?

Any help/advice much appreciated

Thanks Jon

_______________________ Jon Southall Technical Operations Manager E: jon.southall@boku.commailto:jon.southall@boku.com M: +14153427958 [cid:image001.png@01CC82AD.3D217E20] _______________________