nanoBTS fails to start with osmo-bsc

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Pierre Kim admin at manateeshome.com
Mon Nov 26 13:07:59 UTC 2018


Hello,

I created a redmine issue here: https://osmocom.org/issues/3707

And the BTS used to work with osmo-nitb before the split, I remember
setting it up about a year and half ago.

I connected it to softBSC just to make sure that it wasn't a hardware
problem.


Regards.

Pierre

On 2018-11-26 오후 7:34, Pau Espin Pedrol wrote:
> Hi,
>
> First of all, can you please create a ticket with all the information,
> link it to #3063 and also provide a full log of osmo-bsc with "logging
> level set-all debug" together with a pcap file and bsc.cfg.
>
>
>> With the newest git repo version of osmo-bsc, my nanoBTS fails to start.
>>
>
> Was it recently working for you with up to date osmocom? Or never got
> it to work?
>
>> I can confirm that they work normally with ip.access softBSC.
>
> Would be nice if you could provice a pcap file while using it to see
> the differences.
>
>>
>>
>> I thought osmocom Redmine issue #3063 might be relevant and tried
>> setting/unsetting force-combined-si but I am still getting the same
>> result. Attached are the packet capture and bsc config file
>>
>> The following is the log from osmo-bsc:
>>
>> <0015> input/ipa.c:262 accept()ed new link from 192.168.27.40 to port
>> 3002
>> <0004> abis_nm.c:847 OC=BTS(01) INST=(ff,ff,ff): GET ATTRIBUTE NACK
>> <0004> osmo_bsc_main.c:178 BTS0 does not support Get Attributes OML
>> message.
>> <0004> abis_nm.c:560 OC=BASEBAND-TRANSCEIVER(04) INST=(00,00,ff): BTS0:
>> ARI reported sw[0/5]: 168a004 is v136d0
>> <0004> abis_nm.c:560 OC=BASEBAND-TRANSCEIVER(04) INST=(00,00,ff): BTS0:
>> ARI reported sw[1/5]: 168a002 is v136d0
>> <0004> abis_nm.c:560 OC=BASEBAND-TRANSCEIVER(04) INST=(00,00,ff): BTS0:
>> ARI reported sw[2/5]: 168a002 is v136d0
>> <0004> abis_nm.c:560 OC=BASEBAND-TRANSCEIVER(04) INST=(00,00,ff): BTS0:
>> ARI reported sw[3/5]: 168a001 is v136d0
>> <0004> abis_nm.c:560 OC=BASEBAND-TRANSCEIVER(04) INST=(00,00,ff): BTS0:
>> ARI reported sw[4/5]: 168a001 is v136d0
>> <0004> abis_nm.c:494 BTS0 Attribute Manufacturer Dependent State is
>> unreported
>
> That looks fine I think. Get attributes fails at BTS level but then it
> asks at transceiver level and it gets the information. The initial
> failure is not important.
>
>> <0004> abis_nm.c:2888 (bts=0,trx=0) IPA RSL CONNECT IP=0.0.0.0 PORT=3003
>> STREAM=0x00
>> <0015> input/ipa.c:262 accept()ed new link from 192.168.27.40 to port
>> 3003
>> <0003> osmo_bsc_main.c:283 bootstrapping RSL for BTS/TRX (0/0) on ARFCN
>> 600 using MCC-MNC 450-09 LAC=23 CID=0 BSIC=63
>> BTS 0: Failure Event Report: Type=processing failure, Severity=critical
>> failure, Probable cause=Manufacturer specific values: Fatal software
>> error, Additional Text=l2_bch.c:1149
>> ****
>> ** l2_bch.c#1149:BCHbcchSItypeValid( prim_p->infoType )
>> ** IPA_SW_FATAL_ERROR
>> ** In task "TRX Proc:L2_BCH" @ (325).
>> ****
>>
>
> Looks like the BTS doesn't like some type of SI we are sending to it.
> A fulldebug log of osmo-bsc.cfg would help. I'm right now trying to
> find in the pcap file were the SI info is sent.
>
> BTW, try using following setup, it's the one I did test with. Tell me
> if you see any change:
>    timeslot 0
>     phys_chan_config CCCH+SDCCH4
>     hopping enabled 0
>    timeslot 1
>     phys_chan_config TCH/F
>     hopping enabled 0
>    timeslot 2
>     phys_chan_config TCH/F
>     hopping enabled 0
>    timeslot 3
>     phys_chan_config TCH/F
>     hopping enabled 0
>    timeslot 4
>     phys_chan_config TCH/F
>     hopping enabled 0
>    timeslot 5
>     phys_chan_config TCH/F
>     hopping enabled 0
>    timeslot 6
>     phys_chan_config PDCH
>     hopping enabled 0
>    timeslot 7
>     phys_chan_config PDCH
>     hopping enabled 0
>
> Regards,
> Pau
>




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