Network Bandwidth Expectations

What sort of network performance should I expect?

The network bandwidth available to VMs will depend on the type of network your VMs are on and the contention on the hypervisor on which your VM is running:

Internal (172.16.*.*):

Private (project private networks eg 10.*.*.* or 192.168.*.*):

How can I test network bandwidth?

The best way to test network bandwidth is with iperf3. You will need two hosts, the location of these hosts will vary depending on what you are trying to test. If you want to test connection to an STFC service please contact us and we can arrange one of the hosts for testing.

On both hosts install iperf3

On one host (the server) start iperf3 in server mode (if we are providing a host to test with skip this)

On the second host (the client) start

On the client side you should see an output like this:

From this you can see that there was an average bandwidth of 18.1 gbps during this test