> I have traces around somewhere which I have stared at with Ethereal.
> 
> The pattern I see is a flow of writes to the NetBSD box, perhaps with ACKs 
> interspursed (I don't actually remember either way). Then I see a spew of 
> ACKs with no other activity. Say about 12 in a row.

That could be symptomatic of transmitting data that saturates a HDX link.
(ACKS are generated for every other data packet, but don't get sent until
the LAN is idle - possibly after a delay caused by the exponential backoff
timer reaching its maximum.)

Maybe also by a system that is overloaded and giving preference to
processing receive traffic.

	David

-- 
David Laight: david@l8s.co.uk