LTE Modem log configuration

[Yann.P]

Hi there,
I need to collect modem logs to investigate LTE-M connectivity issues in specific countries.
I have been using the command AT%XMODEMTRACE=1,2 to activate them and I am using Wireshark to visualize them.

I am limited in the amount of data I am able to collect and I would like to reduce the verbosity of the logs to the following subset : AT, NAS-EPS, LTE RRC, IP (actually I would need to only collect the traces that can be viewed with Wireshark).

The documentation about the AT%XMODEMTRACE command advises to connect with the support team in order to use the <bitmap_id> and <bitmap> fields and there is no documentation about these fields.

Can you advise me what parameters I should use to limit to the logs to the subset mentioned above ?

Thanks a lot,

Yann

[Charlie]

Hi Yannick,

It is a bit confusing. Could you try to clarify a bit more on my below questions?

Do you mean you can see IP traffic when running the AT%XMODEMTRACE commands only after the power is on, but the configuration will not survive power reset? If this is true, could you run AT+CFUN=0 before power reset?

Or do you never see IP traffic at all?

Best regards,

Charlie

[Yann.P]

Hello Charlie,
Sorry my message was not clear.
I could not see any IP traffic at all.
I could see the AT events in the logs the first time I issued the commands, but it only worked once. AT events are not present in the logs any more, even after I reboot the modem and issues the AT%XMODEMTRACE again.

[Charlie]

Did you test with MFWv1.3.6 or something else?

[Yann.P]

Hello Charlie the modem version I am using is nrf9160_1.3.0