Thanks 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