Hello Harald,

Thank you for your responses. I'll change configs with slot-overlapping but looks like I'm quite far from getting it to work.

Today I found that I have "kernel: wct4xxp 0000:03:02.0: Interrupts not detected." in syslog. This line was visible only if I load modules manually (not via systemctl start dahdi)

I heard that it happens on some hardware with Digium cards, I'll try tomorrow to change PCI slot to avoid sharing one IRQ with USB devices, maybe disable USB at all. If it doesn't help, I'll try a new server with different HW.

Now it seems a root cause of the most of problems with communication between BSC and BTS

Thank you

Babanov Ivan

сб, 10 окт. 2020 г. в 18:50, Harald Welte <laforge@gnumonks.org>:

The pcap file shows that OsmoBSC is sending SABME requests but that the BTS
never responds to any of them. I would assume that somehow the timeslot
configuration on BTS and BSC side don't agree, i.e. you're sending the SABME
on a timeslot that the BTS doesn't expect it on.

I remember that the E1 related configuration on the Noika BTS (at least the InSite)
is relatively complex. Might be best to check all related settings.

--
- Harald Welte <laforge@gnumonks.org> http://laforge.gnumonks.org/
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