Understanding DSA on Netgear WAC104 and driver-level VLAN

Continuing the discussion from Mini tutorial for DSA network config:

I'm seeking some details or info on two main things:

  • To understand the output of bridge monitor in hopes of finding why in some cases packets were lost (or dropped probably?).
  • Whether driver-level VLANs work with DSA or not.

Below is a related topics I posted before: