It could be to do with the TCP stack not being tuned for the latency of
the PIPE.
It also could be due to a small amount of packet loss, which will kill
TCP performance.
On your UDP iperf, were there any dropped or out of order packets?
On 20.11.2014 08:18, Johan Borch wrote:
Hi!
I'm doing some performance troubleshooting between two linux systems,
the
servers are located in each end of an L3VPN, with a bunch of routers
between them.
Using Iperf and UDP I get ~1Gbps in both directions
Using iperf and TCP i get ~400Mbps in one direction and ~60Mbps in
the
other direction
Could this still be a network problem or should I dig on the linux
side?
Johan
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