[srsran-users] NAS Short MAC invalid issue

[J Giovatto]

On 11/15/22 05:19, Andre Puschmann wrote:
> Hey,
>
> On 14/11/22 17:02, J Giovatto wrote:
>> Yes running zmq, I have confirmed that earfcn = 2850 and only earfcn 
>> = 2850 is in play.
>
> Ok, good.
>
>>
>> I have attached a patch for zmq that will create a 5 min DL blackout 
>> that you can try.
>
> Well, 5min, this is long and likely longer than the max time the UE 
> will do a reestablishment. But that depends on your configs of course.
Ill try to find the min duration for this to happen but 5min is a sure 
thing.
>
> For this to replicate I would appreciate you open an issue in github 
> and post all configs and full logs. Also instead of patching the code 
> could you try to replicate this with the channel emulator, there is a 
> RLF option that should do exactly what you need.


I tried to set the enb to do just that but the link never broke thinking 
30 on and 300 sec off

[channel.dl.rlf]
enable        = true
t_on_ms       = 30000
t_off_ms      = 300000

>
> This would also be helpful to do a git-bisect in case it's a 
> regression introduced by a commit.


Sure thing, Thanks

>
> Thanks
> Andre
>
>>
>> Seems like it ony happens with UL pending traffic (ping the epc).
>>
>> Thanks for looking.
>>
>>
>> Joe
>>
>>
>>>
>>>
>>>> Maybe this is related to issue #960 ?
>>>
>>> I don't think it is related to 
>>> https://github.com/srsran/srsRAN/issues/960
>>>
>>> But have a look at the above and we check further if needed.
>>>
>>> Thanks
>>> Andre
>>
>>
>

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