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Harald Welte laforge at gnumonks.orgHi Ivan,
On Fri, Oct 09, 2020 at 10:51:02PM +0300, Ivan Babanov wrote:
> Regarding SABME message it's correct behaviour, I checked twice, BSC
> initializes link establishment and BTS responds with UA
I never worked a lot with Nokia, so you may be right. In the 3GPP specs
(and as implemented in Siemens), the BTS initiates the data link to the BSC.
> Today I was digging in dahdi-linux docs again and I see that it uses BKL
> mechanisms in the kernel. Is it still valid? Because BKL was removed from
> kernels starting from 2.6.39
I'm not sure what you are referring to. I have kernels up to 5.8.0 running
with DAHDI without any problems.
> What linux kernel do you use on your server with dadhi E1 adapters?
mostly whatever version Debian 10 (amd64) ships. I then build DAHDI for that
kernel from source. https://github.com/osmocom/dahdi-linux has a few
fixes for recent kernel versions that upstream doesn't yet have merged to
master. But if upstream compiles on your kernel, you don't need those patches.
--
- Harald Welte <laforge at gnumonks.org> http://laforge.gnumonks.org/
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