Hello Sukchan,
Now after remove this everything run correctly.
[image: image.png]
I will made the change more beatiful and pull the modification to the git
to you aprove.
Thanks
Romeu Medeiros
On Sat, Jul 13, 2019 at 6:50 PM Romeu Medeiros <medeiros(a)medeiros.eng.br>
wrote:
I found this in the 3GPP documentations [1]:
[image: image.png]
I will change the code to send only the CSFallback indicator in this case
to see if can solve the problem.
Thanks
Romeu Medeiros
1.
https://www.etsi.org/deliver/etsi_ts/136400_136499/136413/09.10.00_60/ts_13…
On Sat, Jul 13, 2019 at 6:35 PM Romeu Medeiros <medeiros(a)medeiros.eng.br>
wrote:
> Hello Sukchan and friends.
>
> I'm trying to use the CSFB in test lab, and every time that nextepc send
> the UEContextModificationRequest, the UE respond with an
> UEContextModificationFaliure [ Protocol-cause=semantic-error ].
>
> [image: image.png]
>
> I'm looking why I'm getting this. Someone have any idea?
>
> Thanks
>
> Romeu Medeiros
>
> On Thu, Jul 11, 2019 at 12:15 PM Sukchan Lee <acetcom(a)gmail.com> wrote:
>
>> Dear Osmocom & NextEPC Community,
>>
>> Today I've added CS Fallback and released NextEPC v0.5.0
>>
>> So, I'd just like to test this part with Osmocom project, but it seems
>> to be a difficult task. The reason is why I have little knowledge about
>> 2G/3G. Nevertheless, I will try to do it
>>
>> BTW, I don't know if there is anyone who wants to integrate this big
>> thing.
>> Even though I'm not sure if this will help, but let me introduce the
>> configuration of the NextEPC.
>>
>> To use SGsAP, change the mme.conf as follows:
>>
>> #
>> # <sgsap>
>> #
>> # o Single MSC/VLR
>> # sgsap:
>> # addr: 127.0.0.2
>> # plmn_id:
>> # mcc: 001
>> # mnc: 01
>> # tac: 4130
>> # lac: 43690
>> #
>> # o Multiple MSC/VLR
>> # sgsap:
>> # - addr: 127.0.0.2
>> # plmn_id:
>> # mcc: 001
>> # mnc: 01
>> # tac: 4131
>> # lac: 43692
>> # - addr
>> # - 127.0.0.3
>> # - fe80::2%lo0
>> # plmn_id:
>> # mcc: 001
>> # mnc: 01
>> # tac: 4132
>> # lac: 43692
>> # - name:
msc.open5gs.org
>> # plmn_id:
>> # mcc: 001
>> # mnc: 01
>> # tac: 4133
>> # lac: 43693
>> #
>>
>> FYI, I also attach the pcap that I run with nextepc simulator as below.
>>
>> $ ./tests/testcsfb
>> mo-idle-test : SUCCESS
>> mt-idle-test : SUCCESS
>> mo-active-test : SUCCESS
>> mt-active-test : SUCCESS
>> All tests passed.
>>
>> Feel free to raise any questions about this things.
>>
>> Best Regards,
>> Sukchan
>>
>>