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<p>Thanks for your detailed and generous explanation. I am a
beginner on openBSC, <span style="color: rgb(51, 51, 51);
font-family: arial; font-size: 18px; font-style: normal;
font-variant-ligatures: normal; font-variant-caps: normal;
font-weight: 400; letter-spacing: normal; orphans: 2;
text-align: start; text-indent: 0px; text-transform: none;
white-space: normal; widows: 2; word-spacing: 0px;
-webkit-text-stroke-width: 0px; background-color: rgb(255, 255,
255); text-decoration-style: initial; text-decoration-color:
initial; display: inline !important; float: none;">looking
forward to your guidance.</span><span style="color: rgb(51, 51,
51); font-family: arial; font-size: 18px; font-style: normal;
font-variant-ligatures: normal; font-variant-caps: normal;
font-weight: 400; letter-spacing: normal; orphans: 2;
text-align: start; text-indent: 0px; text-transform: none;
white-space: normal; widows: 2; word-spacing: 0px;
-webkit-text-stroke-width: 0px; background-color: rgb(255, 255,
255); text-decoration-style: initial; text-decoration-color:
initial; display: inline !important; float: none;"></span></p>
<p>There are some files in the attachment, i don't know whether they
are enough.<br>
</p>
<p>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.<br>
</p>
<p>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 ?</p>
<p>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.</p>
<p><br>
</p>
<p>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.<br>
</p>
<p><br>
</p>
<p>thanks for your help again.</p>
<p><br>
</p>
<div class="moz-cite-prefix">在 2020/5/9 下午8:52, Pau Espin Pedrol 写道:<br>
</div>
<blockquote type="cite"
cite="mid:7ba75d83-386f-cec8-8f16-a42db5489a2f@sysmocom.de">
<pre class="moz-quote-pre" wrap="">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:
</pre>
<blockquote type="cite">
<pre class="moz-quote-pre" wrap="">*_/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
</pre>
</blockquote>
<pre class="moz-quote-pre" wrap="">
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.
</pre>
<blockquote type="cite">
<pre class="moz-quote-pre" wrap="">
*3. osmo-nitb*
</pre>
</blockquote>
<pre class="moz-quote-pre" wrap="">
FYI, osmo-ntib is deprecated and not maintained since years ago.
Please better use new software stack:
<a class="moz-txt-link-freetext" href="https://osmocom.org/projects/cellular-infrastructure/wiki">https://osmocom.org/projects/cellular-infrastructure/wiki</a>
</pre>
</blockquote>
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