> In what case is the current behavior a problem (my guess would > be something related to LLDP)?
LLDP is indeed the case we're trying to solve here. Listen on one socket and get LLDP for all interfaces in the system. > What if, e.g., the bond is a bridge > port, will STP frames no longer propagate to the bridge? That's an interesting question. I don't actually know how this should work. Should this change perhaps only apply to packets we would otherwise RX_HANDLER_EXACT? ie. only affect link local packets on inactive slaves? but continue reparenting link local packets on active slaves? That would seem a little inconsistent... but less of a change.