Software Defined Networking Supported by IEEE 802.1Q
Abstract
This paper gives an overview on how Software Defined Networking (SDN) principles can be applied to existing Ethernet merchant silicon considering the requirements modern networks face. We show that existing Layer 2 features specified by IEEE 802.1Q support SDN. The bridge architecture supports control plane/data plane split by design and also allows for external control e.g. by an SDN Controller. The data plane provided by existing chips is feature rich for network virtualization and supports even more features like OAM. We outline the principles of SDN over bridges and show a number of possibilities for further research and development.
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