4) So the basic problem many people experience is that in order to get a good distribution of traffic, you need more than just two clients. If you have two clients, there is a 50% chance that both flows will end up on the same link of a dual-link LACP connection. If you have three clients, at least two will end up on one connection while another probably has a connection all to itself - but! It is still possible for all three to end up on the same link! And what client generates network traffic 100% of the time? In practice, it is usually difficult to get link aggregation to work well until you have at least a dozen clients and a very busy network.