On Wednesday 01 January 2020 17:30:14 Russell King - ARM Linux admin wrote:

I think the most important thing to do if you're suffering problems
like this is to monitor and analyse packets being received from the
DSA switch on the host interface:

# tcpdump -enXXi $host_dsa_interface

Hello Russell! Main dsa interface for me is eth0 and it does not see any
incoming vlan tagged packets. (Except that sometimes for those 5 minutes
periods it sometimes see them. And when tcpdump saw them also they
arrived to userspace.)

-- 
Pali Rohár
pali.rohar@gmail.com