Nick Hilliard wrote:
the proper thing to do is to use the links with round robin fashion without hashing. Without buffer bloat, packet reordering probability within each TCP connection is negligible.
Can you provide some real world data to back this position up?
See, for example, the famous paper of "Sizing Router Buffers". With thousands of TCP connections at the backbone recognized by the paper, buffers with thousands of packets won't cause packet reordering.
What you said reminds me of the old saying: in theory, there's no difference between theory and practice, but in practice there is.
In theory, you can always fabricate unrealistic counter examples against theories by ignoring essential assumptions of the theories. In this case, "Without buffer bloat" is an essential assumption. Masataka Ohta