So when I run iperf from my loopback interface (PC1) (client side) to my Linux VM (server side) I get and average of BW= 1.1 Mbps. Is is safe to say that the performance of the link is: Performance = real BW / theoritecal BW = 71.24 %. This is the topology I use, and it goes from PC1 to PC2:

Validate VPN throughput to a Microsoft® Azure Virtual Validate network throughput by using performance tools. This validation should be performed during non-peak hours, as VPN tunnel throughput saturation during testing does not give accurate results. The tool we use for this test is iPerf, which works on both Windows and Linux and has both client and server modes. It is limited to 3Gbps for iPerf - The TCP, UDP and SCTP network bandwidth What is iPerf / iPerf3 ? iPerf3 is a tool for active measurements of the maximum achievable bandwidth on IP networks. It supports tuning of various parameters related to timing, buffers and protocols (TCP, UDP, SCTP with IPv4 and IPv6). For each test it reports the bandwidth, loss, and other parameters.

Using iPerf to Troubleshoot Speed and Throughput Issues | IBM

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What is iPerf / iPerf3 ? iPerf3 is a tool for active measurements of the maximum achievable bandwidth on IP networks. It supports tuning of various parameters related to timing, buffers and protocols (TCP, UDP, SCTP with IPv4 and IPv6). For each test it reports the bandwidth, loss, and other parameters. Measuring Network Bandwidth Using iperf | Oracle Solaris Blog I have been using iperf to test my script, and I've noticed that the measured results are always _slightly_ different than my mandated values, the server results are always low, and the client's are high. For instance, if I set the bandwidth to 8Mbit/s, the server shows 7.62Mbit/s, while …