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cruise zhankun_bi at 163.comThanks for your detailed and generous explanation. I am a beginner on
openBSC, looking forward to your guidance.
There are some files in the attachment, i don't know whether they are
enough.
1. The config files of osmo-trx, osmo-bts-trx and osmo-nitb. They are
the original files downloaded from git repository, and i select one of
them to run the application, i don't know whether they are correct, and
i don't know how to modify it.
2. config.log files of osmo-trx, osmo-bts-trx and osmo-nitb. I don't
know whether they are the logs you mentioned in your reply. I guess not,
but i don't know how to get the complete logs, Maybe you give me some tips ?
3. pcap file which includes the data package whose src ip and dst ip are
the 127.0.0.1, these packages were captured using wireshark.
I guess there are some problems on the config file osmo-nitb-ipa.cfg , i
select it as the config file without reason, because i don't know how to
config the file.
thanks for your help again.
在 2020/5/9 下午8:52, Pau Espin Pedrol 写道:
> Hi,
>
> the problem is not in osmo-bts-trx <-> osmo-trx, that's working fine so
> far on your setup (sending a POWEROFF at startup is fine since then it
> makes sure the osmo-trx is powered off before configuring it and finally
> running POWERON on it). It won't be configured until the BSC (in your
> case osmo-nitb) instructs osmo-bts-trx on how to do it through Abis OML
> connection.
>
> The problem is here:
>
> On 5/9/20 3:15 AM, cruise wrote:
>> *_/About one minutes later, the osmo-bts-trx will exit automatically,
>> and the following messages was printed./_*
>>
>> <0012> e1_input.c:243 abis_sendmsg: msg->dst == NULL: 0c 12 01 90 0f 00 c8
>> <0012> e1_input.c:243 abis_sendmsg: msg->dst == NULL: 0c 12 01 88 12 06
>> 00 00 00 00 00 00
>> <000d> abis.c:143 Signalling link down
>> <0001> bts.c:293 Shutting down BTS 0, Reason Abis close
>> Shutdown timer expired
>
> The Abis connection, be it OML or RSL, between the BTS and the BSC (in
> your case osmo-nitb) fails at some point. Unfortunately unless you
> provide config files, complete logs and pcap files it's difficult to
> tell you more. Please next time provide those while reporting.
>
>
>> *3. osmo-nitb*
> FYI, osmo-ntib is deprecated and not maintained since years ago.
> Please better use new software stack:
> https://osmocom.org/projects/cellular-infrastructure/wiki
>
>
>
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!
! OsmoBTS (1.2.0.46-40fb) configuration saved from vty
!!
!
log stderr
logging filter all 1
logging color 1
logging print category-hex 1
logging print category 0
logging timestamp 0
logging print file 1
logging level rsl notice
logging level oml notice
logging level rll notice
logging level rr notice
logging level meas error
logging level pag error
logging level l1c error
logging level l1p error
logging level dsp error
logging level pcu notice
logging level ho notice
logging level trx notice
logging level loop notice
logging level abis error
logging level rtp notice
logging level sum notice
logging level lglobal notice
logging level llapd notice
logging level linp notice
logging level lmux notice
logging level lmi notice
logging level lmib notice
logging level lsms notice
logging level lctrl notice
logging level lgtp notice
logging level lstats notice
logging level lgsup notice
logging level loap notice
logging level lss7 notice
logging level lsccp notice
logging level lsua notice
logging level lm3ua notice
logging level lmgcp notice
logging level ljibuf notice
logging level lrspro notice
!
stats interval 5
!
line vty
no login
!
e1_input
e1_line 0 driver ipa
e1_line 0 port 0
no e1_line 0 keepalive
phy 0
osmotrx ip local 127.0.0.1
osmotrx ip remote 127.0.0.1
osmotrx base-port local 5800
osmotrx base-port remote 5700
osmotrx fn-advance 20
osmotrx rts-advance 5
instance 0
bts 0
band DCS1800
ipa unit-id 6969 0
oml remote-ip 192.168.122.1
rtp jitter-buffer 100
rtp port-range 16384 17407
paging queue-size 200
paging lifetime 0
uplink-power-target -75
gsmtap-sapi ccch
gsmtap-sapi pdtch
min-qual-rach 50
min-qual-norm -5
max-ber10k-rach 1707
smscb queue-max-length 15
smscb queue-target-length 2
smscb queue-hysteresis 2
trx 0
power-ramp max-initial 5000 mdBm
power-ramp step-size 1000 mdB
power-ramp step-interval 2
ms-power-control osmo
phy 0 instance 0
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!
! 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
bts 0
type sysmobts
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
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log stderr
logging filter all 1
logging color 1
logging print category 1
logging timestamp 1
logging print file basename
logging level set-all info
!
line vty
no login
!
trx
bind-ip 127.0.0.1
remote-ip 127.0.0.1
egprs disable
! 28 dB offset below is valid only for the B2xx in 1800 MHz band, see
! https://osmocom.org/issues/4468 for more details
rssi-offset 28.000000
tx-sps 4
rx-sps 4
clock-ref external
rt-prio 18
chan 0