Re: Linux 2.4 network performance oddities

[Alexey Kuznetsov <kuznet@xxxxxxxxxxxxx>]

Hello!

> transfer at a time and no Bit Error rate set. But when we set a BER and
> later set BER back to 0 the transfers wouldn´t run at the same transfer rate
> as before without BER but at only the speeds with BER set.

TCP remebers that this path is lossy and do not try to stress it again
with slow start, doing congestion avoidance instead.

It will disappear for logarithmic time, exactly like it happens when
you disable BER _during_ one connection.


> of the connections from the multisession-netperf-transfer !

The same thing.


> else who could help me.

Nothing to help really. It should recover itself following
congestion avoidance. If it does not, prepare tcpdump of failing
session.

Alexey