How to 'POWERON' the osmo-trx

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Pau Espin Pedrol pespin at sysmocom.de
Sat May 9 12:52:17 UTC 2020


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



-- 
- Pau Espin Pedrol <pespin at sysmocom.de>         http://www.sysmocom.de/
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