All you have to do is make Docker installed on your host and run the pre-built Docker image osrg/namazu.
$ sudo modprobe openvswitch
$ docker run --rm --tty --interactive --privileged -e NMZ_DOCKER_PRIVILEGED=1 osrg/namazu
INIT: Running with privileged mode. Enabling DinD, OVS, and Ryu
INIT: Namazu is installed on /namazu. Please refer to /namazu/README.md
INIT: Starting command: ['wrapdocker', '/init.dind-ovs-ryu.sh']
* /etc/openvswitch/conf.db does not exist
* Creating empty database /etc/openvswitch/conf.db
* Starting ovsdb-server
* Configuring Open vSwitch system IDs
* Starting ovs-vswitchd
* Enabling remote OVSDB managers
Assigned 192.168.42.254 to ovsbr0
root@907529be8b21:/namazu#
Then, you can do the things what you want in /namazu directory.
You might want to try several examples.