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trying a quick experiment with ACI to see if I can use it to host iperf3 for some on demand network performance testing. The docker image is https://hub.docker.com/r/netgio/iperf3server/

I can get the container up and running but when I try to connect to it the iperf client gives me the error "iperf3: error - control socket has closed unexpectedly"

I was hoping this would be a simple, single port, single instance use case. are there any specifics related to socket connectivity into ACI instances that would affect this?

EDIT: iPerf3 defaults to TCP port 5201 so to ensure ACI port mappings are working as expected I created an nginx docker image configured to listen on port 5201 and deployed to ACI. This worked as expected (I could access the default home page at http://:5201). So the issue seems to be specific to whatever iPerf3 is doing with its sockets.

Note the error happens almost immediately at launch of the client iperf3 process.

Netgio
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Azure is experiencing an outage right now. You're probably being impacted. http://downdetector.com/status/windows-azure

spork
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  • Deploying a basic nginx instance on port 80 is working fine, and the issue persists. Ironically this image "works on my machine" and on an Azure VM. – Netgio Nov 07 '17 at 11:15
  • Don't know what to tell you. Multiple Azure regions were taken down during the time of your question by a misconfiguration at Level 3. If you're still having problems, it's probably not due to the outage. – spork Nov 10 '17 at 02:01