@AndyD Finally an explanation what happened after 2.4 where HAProxy performance dropped like a stone :), lets hope this comes to CE version too.

Oh, yeah just use express card then. Almost certainly not restricted in the same way.

Hi Rico

Danke für die Rückmeldung. Ich konnte es mittlerweilse lösen, hab die Schnittstelle zwar angelegt, aber nicht aktiviert.

Danke

Gruss

32ms across IPsec?

If so it sounds like you're getting right about what you should for a single-stream TCP session with 32ms latency and a 128KB buffer.

That is probably a little high since you have the 30Mbit upstream at one end and certainly not a 1460 MSS across IPsec.

Bandwidth-delay Product and buffer size BDP (1000 Mbit/sec, 32.0 ms) = 4.00 MByte required tcp buffer to reach 1000 Mbps with RTT of 32.0 ms >= 3906.2 KByte maximum throughput with a TCP window of 128 KByte and RTT of 32.0 ms <= **32.77 Mbit/sec.**

You could try giving a -P4 or -P8 to the iperf client to see if running multiple streams helps.

Or switch to UDP and see how high you can take the -b parameter before you start experiencing loss.