Stef Coene wrote: > On Tuesday 17 June 2003 11:13, Albert Martorell wrote: > > I see my first mistake has been testing directly on ethernet devices > > without a loopback connector... Anyway I've tried with ethloop on lo and > > the results are the same. > Did you execute > ifconfig lo mtu 1500 > ? > Yes I did. I've seen that for low rates in ethloop it behaves as expected. When I increase rates to 50% of ceil rate, traffic only goes through the first leaf class. I've tried lowering the quantum, as suggested by Orlie Brewer, but it has not worked for me.. Albert