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• An ONOS clusters installed and running, one for SONA and the others for vRouter. ONOS for vRouter runs on every gateway node.
• An OpenStack service installed and running ("stable/mitaka" version is used here)

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Note that this instructions assume you’re familiar with ONOS and OpenStack, and do not provide a guide to how to install or trouble shooting these services. However, If you aren’t, please find a guide from ONOS(http://wiki.onosproject.org) and OpenStack(http://docs.openstack.org), respectively.

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[Figure 1. SONA deploy example]

The example deployment depicted in the above figure uses three networks.

• Management network: used for ONOS to control virtual switches, and OpenStack to communicate with nova-compute agent running on the compute node
• Data network: used for East-West traffic via VXLAN tunnel
• External network: used for North-South traffic, normally only the gateway node has a connectivity to this network

If you don't have enough network interfaces in your test environment, you can share the networks. And you can also emulate the external router. Figure 2 shows one possible test environment used in this guide.

Prerequisite

1. Make sure your OVS version is 2.3.0 or later. This guide works very well for me (don't forget to change the version in the guide to 2.3.0 or later). 

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