This may have a bit to do with the internals of
I set up
iperf -s -u -i 2 on server A (UDP server, supposed to print stats every 2 seconds), and am sending traffic to it from server B. As a prefix, I am aware of some MTU issues on the network, but I am using
iperf to diagnose them. I send traffic using
iperf -c <server-address> -l 1000 -u (the size of 1000 is to avoid MTU problems, for now at least). Now, as soon as I send out the traffic, I can see from server A that a connection was received, due to a printed line. However, stats on bandwidth are not printed out every 2 seconds after.
I confirmed that traffic is actually being sent using
tcpdump. I see packets arriving, destined to the local server and port 5001, which the server does by default, but server A does not print anything regarding bandwidth.
I am leaning towards some sort of local routing issue, but it is a bit odd since the connection is initially established, so I am leaning towards an MTU issue/
iperf issue of some kind.