[e2e] Why was hop by hop flow control eventually abandonded?

[Noel Chiappa]

PS: It might also have been the extension of more general design principle to
all areas - i.e. getting rid of state in the switches (be it for reliability,
flow control, or anything else), and moving it to the ends; that way,
everything (reliability, flow control, etc, etc) was done on an end-end
basis.

And maybe it was both? All just speculation on my part, though, I'm afraid..

    Noel