[Bloat] Router congestion, slow ping/ack times with kernel 5.4.60

[Toke Høiland-Jørgensen]

>> Also, it's TX, and we are only doing RX, as I said already somewhere, 
>> it's async routing, so the TX data comes via another router back.
>
> Okay, but as this is a router you also need to transmit this
> (asymmetric) traffic out another interface right.
>
> Could you also provide ethtool_stats for the TX interface?
>
> Notice that the tool[1] ethtool_stats.pl support monitoring several
> interfaces at the same time, e.g. run:
>
>  ethtool_stats.pl --sec 3 --dev eth4 --dev ethTX
>
> And provide output as pastebin.

Also, from your drawing, everything goes through the same switch, right?
And since pause frames are involved... Maybe it's the switch being
overwhelmed?

In general, I find that pause frames give more problems than they solve,
so I always turn them off...

-Toke