This presentation reminds Docker networking, exposes Software Defined Network basic paradigms, and then proposes a mixed-up implementation taking benefits of a coupled use of these two technologies. Implementation model proposed could be a good starting point to create multi-tenant PaaS platforms. As a bonus, OpenStack Neutron internal design is presented. You can also have a look on our previous presentation related to enterprise patterns for Docker: http://fr.slideshare.net/ArnaudMAZIN/docker-meetup-paris-enterprise-docker