OSMOCOM TRX_BTS_BSC Connection Issue

This is merely a historical archive of years 2008-2021, before the migration to mailman3.

A maintained and still updated list archive can be found at https://lists.osmocom.org/hyperkitty/list/OpenBSC@lists.osmocom.org/.

Aalto Koskinen aaltokoskinen at gmail.com
Tue Apr 14 13:27:32 UTC 2020


Hi Vadim and Pau,

Thank you for the quick replies.

*Pau:* Probably your guess is correct. I am looking into it in detail at
the moment the core network configurations.
*Vadim*: I started osmo-trx first and waited until the message "Transceiver
active with 1 channel(s)", before running osmo-bts-trx and other modules.
I will look into the wireshark capture to ensure that there are RSL and OML
packets. Yes. I am using the configuration examples from
*https://osmocom.org/attachments/3473/nitb.tar
<https://osmocom.org/attachments/3473/nitb.tar>.* I am not sure, how to
test osmo-bsc is actually running on 192.168.122.1 (I guess, I have to ping
to ensure). Meanwhile, is there a basic configuration where I can run the
system? Can I find it somewhere(I tried to run /usr/local/etc/osmocom
config files and it didn't work. Probably, I have to fine tune the
configurations)? And, is there a wireshark trace by any chance for
reference?

On Thu, 9 Apr 2020 at 15:39, Pau Espin Pedrol <pespin at sysmocom.de> wrote:

> Hi,
>
> I have the feeling the connection between osmo-trx and osmo-bts-trx is
> good. The problem is that your BTS<->BSC<->... is failing.
>
> BTs shows these messages at startup because osmo-trx is not yet running:
> """"
>  > osmo-bts-trx[23221]: <000b> trx_if.c:1174 phy0.0: Open transceiver
>  > osmo-bts-trx[23221]: <000b> trx_if.c:185 phy0.0: No satisfactory
>  > response from transceiver(CMD POWEROFF)
> """
>
> Then at some point osmo-trx answers:
> """
>  > ubuntu-HP-EliteBook-8470p osmo-trx-uhd[8282]: Thu Apr  9 11:22:24
> 2020 DTRXCTRL <0002> Transceiver.cpp:778 [tid=140554180474624][chan=0]
> command is 'POWEROFF'
>  > ubuntu-HP-EliteBook-8470p osmo-trx-uhd[8282]: Thu Apr  9 11:22:24
> 2020 DTRXCTRL <0002> Transceiver.cpp:923 [tid=140554180474624][chan=0]
> response is 'RSP POWEROFF 0'
> """
>
> But it's already too late, the BTS is already exiting due to some issue
> in Abis:
> """
>  > osmo-bts-trx[23221]: <000d> abis.c:142 Signalling link down
>  > osmo-bts-trx[23221]: <0001> bts.c:292 Shutting down BTS 0, Reason
> Abis close
> """
>
> Regards,
> Pau
>
> --
> - Pau Espin Pedrol <pespin at sysmocom.de>         http://www.sysmocom.de/
> =======================================================================
> * sysmocom - systems for mobile communications GmbH
> * Alt-Moabit 93
> * 10559 Berlin, Germany
> * Sitz / Registered office: Berlin, HRB 134158 B
> * Geschaeftsfuehrer / Managing Director: Harald Welte
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osmocom.org/pipermail/openbsc/attachments/20200414/c4bfc0ef/attachment.htm>


More information about the OpenBSC mailing list