MultiPath TCP: how to test MPTCP with OpenWRT and QEMU

The goal of this tutorial is to create a simple scenario with OpenWRT, QEMU and VDE (Virtual Distributed Ethernet - http://vde.sourceforge.net/) to analyze the behavior of MPTCP.

This figure sums up the overall scenario

MultiPath TCP (MPTCP) for OpenWRT

The goal of this post is to describe how to test MultiPath TCP (https://multipath-tcp.org) with OpenWRT (https://openwrt.org/).
The starting point for this page is https://wiki.openwrt.org/doc/uci/mptcp.

You can see how to test MPCTP with OpenWRT here:
http://mytechpg.blogspot.com/2016/01/multipath-tcp-how-to-test-mptcp-with.html

Here you can see how to build MPTCP for Raspberry PI with Yocto
MPTCP, Raspberrry PI and Yocto