The cost of Security in the SDN control Plane
Raphael Durner, Wolfgang Kellerer · mediaTUM (Technical University of Munich) · 2015
In OpenFlow enabled Software Defined Networks (SDNs) network control is carried out remotely via a control connection.In order to deploy OpenFlow in production networks, security of the control connection is crucial.For OpenFlow connections TLS encryption is recommended by the specification.In this work, we analyze the TLS support in the OpenFlow eco-system.In particular, we implemented a performance measurement tool for encrypted OpenFlow connections, as there is non available.Our first results show that security comes at an extra cost and hence further work is needed to design efficient mechanisms taking the security-delay trade-off into account.