21 Oct
2012
21 Oct
'12
10:50 a.m.
This NACK might very well be some incompatibility between the specific
nanoBTS firmware version and current OpenBSC.
I would be useful if you could provide a full pcap trace of the exchange
between BTS and OpenBSC. (tcpdump -ni eth0 -s0 -w/tmp/trace.pcap or the
like). Have you looked at the protocol trace yet in wireshark? What
kind of details can you see about that OPSTART NACK message?
Regards,
Harald
On Mon, Oct 15, 2012 at 08:47:46AM +0100, Dingani Brian Nkala wrote:
Hi All,
I'm very new to OpenBSC and nanoBTS (but have quite a bit of experience in
telecoms in general). I recently acquired a brand new ip.access nanoBTS
(nanoGSM) for a project I'm working on and I promptly installed OpenBSC on
Ubuntu 11.04 successfully without any headaches. So far I've managed to do
an "ipaccess-find" and found the BTS, and also set the Unit ID of the
nanoBTS + OML address using the "ipaccess-config" utility. My problem is,
when I startup osmo-nitb, I can see the BTS trying to connect and then it
sends a NACK and OpenBSC drops the links. Below is the output I get on the
screen when I startup osmo-nitb:
/home/beta/libosmocore/openbsc/openbsc/src/osmo-nitb# ./osmo-nitb
-debug=DRLL:DCC:DMM:DRR:DRSL:DNM:DSMS:DMNSMS:DDB:DMEAS -c openbsc.cfg
DB: Database initialized.
DB: Database prepared.
<0007> sms_queue.c:232 Attempting to send 20 SMS
<0007> sms_queue.c:292 SMSqueue added 0 messages in 0 rounds
<0005> abis_nm.c:419 OC=SITE-MANAGER(00) INST=(ff,ff,ff) STATE CHG:
OP_STATE=Disabled AVAIL=Not installed(07)
<0005> abis_nm.c:419 OC=BTS(01) INST=(00,ff,ff) STATE CHG:
OP_STATE=Disabled AVAIL=Not installed(07)
<0005> abis_nm.c:419 OC=BASEBAND-TRANSCEIVER(04) INST=(00,00,ff) STATE
CHG: OP_STATE=Disabled AVAIL=Not installed(07)
<0005> abis_nm.c:419 OC=CHANNEL(03) INST=(00,00,00) STATE CHG:
OP_STATE=Disabled AVAIL=Not installed(07)
<0005> abis_nm.c:419 OC=CHANNEL(03) INST=(00,00,01) STATE CHG:
OP_STATE=Disabled AVAIL=Not installed(07)
<0005> abis_nm.c:419 OC=CHANNEL(03) INST=(00,00,02) STATE CHG:
OP_STATE=Disabled AVAIL=Not installed(07)
<0005> abis_nm.c:419 OC=CHANNEL(03) INST=(00,00,03) STATE CHG:
OP_STATE=Disabled AVAIL=Not installed(07)
<0005> abis_nm.c:419 OC=CHANNEL(03) INST=(00,00,04) STATE CHG:
OP_STATE=Disabled AVAIL=Not installed(07)
<0005> abis_nm.c:419 OC=CHANNEL(03) INST=(00,00,05) STATE CHG:
OP_STATE=Disabled AVAIL=Not installed(07)
<0005> abis_nm.c:419 OC=CHANNEL(03) INST=(00,00,06) STATE CHG:
OP_STATE=Disabled AVAIL=Not installed(07)
<0005> abis_nm.c:419 OC=CHANNEL(03) INST=(00,00,07) STATE CHG:
OP_STATE=Disabled AVAIL=Not installed(07)
<0005> abis_nm.c:419 OC=RADIO-CARRIER(02) INST=(00,00,ff) STATE CHG:
OP_STATE=Disabled AVAIL=Not installed(07)
<0005> abis_nm.c:419 OC=GPRS-NSE(f0) INST=(00,ff,ff) STATE CHG:
OP_STATE=Disabled AVAIL=Not installed(07)
<0005> abis_nm.c:419 OC=GPRS-CELL(f1) INST=(00,00,ff) STATE CHG:
OP_STATE=Disabled AVAIL=Not installed(07)
<0005> abis_nm.c:419 OC=GPRS-NSVC(f2) INST=(00,00,ff) STATE CHG:
OP_STATE=Disabled AVAIL=Not installed(07)
<0005> abis_nm.c:419 OC=GPRS-NSVC(f2) INST=(00,01,ff) STATE CHG:
OP_STATE=Disabled AVAIL=Not installed(07)
<0005> abis_nm.c:419 OC=SITE-MANAGER(00) INST=(ff,ff,ff) SW Activate
Request: <0005> abis_nm.c:418 Software Activate Request, ACKing and
Activating
<0005> abis_nm.c:439 Found SW config: 42 12 00 08 31 31 39 61 30 30 32
00 13 00 0a 76 31 32 37 62 31 34 64 30 00
<0005> abis_nm.c:419 OC=SITE-MANAGER(00) INST=(ff,ff,ff) Software
Activated Report
<0005> abis_nm.c:419 OC=SITE-MANAGER(00) INST=(ff,ff,ff) STATE CHG:
OP_STATE=Disabled AVAIL=Off line(03)
<0005> abis_nm.c:419 OC=SITE-MANAGER(00) INST=(ff,ff,ff) Sending OPSTART
<0005> abis_nm.c:419 OC=BTS(01) INST=(00,ff,ff) SW Activate Request:
<0005> abis_nm.c:418 Software Activate Request, ACKing and Activating
<0005> abis_nm.c:439 Found SW config: 42 12 00 08 31 31 39 61 30 30 32
00 13 00 0a 76 31 32 37 62 31 34 64 30 00
<0005> abis_nm.c:419 OC=GPRS-NSE(f0) INST=(00,ff,ff) SW Activate
Request: <0005> abis_nm.c:418 Software Activate Request, ACKing and
Activating
<0005> abis_nm.c:439 Found SW config: 42 12 00 08 31 31 39 61 30 30 32
00 13 00 0a 76 31 32 37 62 31 34 64 30 00
<0005> abis_nm.c:419 OC=SITE-MANAGER(00) INST=(ff,ff,ff) STATE CHG:
OP_STATE=Enabled
<0005> abis_nm.c:419 OC=SITE-MANAGER(00) INST=(ff,ff,ff) Sending OPSTART
<0005> abis_nm.c:419 OC=SITE-MANAGER(00) INST=(ff,ff,ff) OPSTART NACK
CAUSE=Message cannot be performed
<0005> bsc_init.c:54 Got a NACK going to drop the OML links.
<0005> abis_nm.c:419 OC=SITE-MANAGER(00) INST=(ff,ff,ff) STATE CHG:
OP_STATE=Disabled AVAIL=Not installed(07)
<0005> abis_nm.c:419 OC=BTS(01) INST=(00,ff,ff) STATE CHG:
OP_STATE=Disabled AVAIL=Not installed(07)
<0005> abis_nm.c:419 OC=BASEBAND-TRANSCEIVER(04) INST=(00,00,ff) STATE
CHG: OP_STATE=Disabled AVAIL=Not installed(07)
<0005> abis_nm.c:419 OC=CHANNEL(03) INST=(00,00,00) STATE CHG:
OP_STATE=Disabled AVAIL=Not installed(07)
<0005> abis_nm.c:419 OC=CHANNEL(03) INST=(00,00,01) STATE CHG:
OP_STATE=Disabled AVAIL=Not installed(07)
<0005> abis_nm.c:419 OC=CHANNEL(03) INST=(00,00,02) STATE CHG:
OP_STATE=Disabled AVAIL=Not installed(07)
<0005> abis_nm.c:419 OC=CHANNEL(03) INST=(00,00,03) STATE CHG:
OP_STATE=Disabled AVAIL=Not installed(07)
<0005> abis_nm.c:419 OC=CHANNEL(03) INST=(00,00,04) STATE CHG:
OP_STATE=Disabled AVAIL=Not installed(07)
<0005> abis_nm.c:419 OC=CHANNEL(03) INST=(00,00,05) STATE CHG:
OP_STATE=Disabled AVAIL=Not installed(07)
<0005> abis_nm.c:419 OC=CHANNEL(03) INST=(00,00,06) STATE CHG:
OP_STATE=Disabled AVAIL=Not installed(07)
<0005> abis_nm.c:419 OC=CHANNEL(03) INST=(00,00,07) STATE CHG:
OP_STATE=Disabled AVAIL=Not installed(07)
<0005> abis_nm.c:419 OC=RADIO-CARRIER(02) INST=(00,00,ff) STATE CHG:
OP_STATE=Disabled AVAIL=Not installed(07)
<0005> abis_nm.c:419 OC=GPRS-NSE(f0) INST=(00,ff,ff) STATE CHG:
OP_STATE=Disabled AVAIL=Not installed(07)
<0005> abis_nm.c:419 OC=GPRS-CELL(f1) INST=(00,00,ff) STATE CHG:
OP_STATE=Disabled AVAIL=Not installed(07)
<0005> abis_nm.c:419 OC=GPRS-NSVC(f2) INST=(00,00,ff) STATE CHG:
OP_STATE=Disabled AVAIL=Not installed(07)
<0005> abis_nm.c:419 OC=GPRS-NSVC(f2) INST=(00,01,ff) STATE CHG:
OP_STATE=Disabled AVAIL=Not installed(07)
<0005> abis_nm.c:419 OC=SITE-MANAGER(00) INST=(ff,ff,ff) SW Activate
Request: <0005> abis_nm.c:418 Software Activate Request, ACKing and
Activating
<0005> abis_nm.c:439 Found SW config: 42 12 00 08 31 31 39 61 30 30 32
00 13 00 0a 76 31 32 37 62 31 34 64 30 00
<0005> abis_nm.c:419 OC=SITE-MANAGER(00) INST=(ff,ff,ff) Software
Activated Report
<0005> abis_nm.c:419 OC=SITE-MANAGER(00) INST=(ff,ff,ff) STATE CHG:
OP_STATE=Disabled AVAIL=Off line(03)
<0005> abis_nm.c:419 OC=SITE-MANAGER(00) INST=(ff,ff,ff) Sending OPSTART
<0005> abis_nm.c:419 OC=BTS(01) INST=(00,ff,ff) SW Activate Request:
<0005> abis_nm.c:418 Software Activate Request, ACKing and Activating
<0005> abis_nm.c:439 Found SW config: 42 12 00 08 31 31 39 61 30 30 32
00 13 00 0a 76 31 32 37 62 31 34 64 30 00
<0005> abis_nm.c:419 OC=GPRS-NSE(f0) INST=(00,ff,ff) SW Activate
Request: <0005> abis_nm.c:418 Software Activate Request, ACKing and
Activating
<0005> abis_nm.c:439 Found SW config: 42 12 00 08 31 31 39 61 30 30 32
00 13 00 0a 76 31 32 37 62 31 34 64 30 00
<0005> abis_nm.c:419 OC=SITE-MANAGER(00) INST=(ff,ff,ff) STATE CHG:
OP_STATE=Enabled
<0005> abis_nm.c:419 OC=SITE-MANAGER(00) INST=(ff,ff,ff) Sending OPSTART
<0005> abis_nm.c:419 OC=SITE-MANAGER(00) INST=(ff,ff,ff) OPSTART NACK
CAUSE=Message cannot be performed
<0005> bsc_init.c:54 Got a NACK going to drop the OML links.
And the config file:
cat openbsc.cfg
!
! OpenBSC configuration saved from vty
! !
password foo
!
line vty
no login
!
e1_input
e1_line 0 driver ipa
network
network country code 1
mobile network code 1
short name OpenBSC
long name OpenBSC
auth policy closed
location updating reject cause 13
encryption a5 0
neci 1
rrlp mode none
mm info 1
handover 0
handover window rxlev averaging 10
handover window rxqual averaging 1
handover window rxlev neighbor averaging 10
handover power budget interval 6
handover power budget hysteresis 3
handover maximum distance 9999
timer t3101 10
timer t3103 0
timer t3105 0
timer t3107 0
timer t3109 0
timer t3111 0
timer t3113 60
timer t3115 0
timer t3117 0
timer t3119 0
timer t3141 0
bts 0
type nanobts
band DCS1800
cell_identity 0
location_area_code 1
training_sequence_code 7
base_station_id_code 63
ms max power 15
cell reselection hysteresis 4
rxlev access min 0
channel allocator ascending
rach tx integer 9
rach max transmission 7
ip.access unit_id 1801 0
oml ip.access stream_id 255 line 0
gprs mode none
trx 0
rf_locked 0
arfcn 514
nominal power 23
max_power_red 20
rsl e1 tei 0
timeslot 0
phys_chan_config CCCH+SDCCH4
timeslot 1
phys_chan_config SDCCH8
timeslot 2
phys_chan_config TCH/F
timeslot 3
phys_chan_config TCH/F
timeslot 4
phys_chan_config TCH/F
timeslot 5
phys_chan_config TCH/F
timeslot 6
phys_chan_config TCH/F
timeslot 7
phys_chan_config TCH/F
Thanks in advance.
--
Dee
--
- Harald Welte <laforge(a)gnumonks.org> http://laforge.gnumonks.org/
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