A common data plane for multiple overlay networks

作者：Nakamura Ryo^*; Okada Kouji; Sekiya Yuji; Esaki Hiroshi

来源：Computer Networks, 2015, 92: 240-250.

DOI：10.1016/j.comnet.2015.09.031

• Overlay network
• Overlay routing
• Data plane

Various overlay networks have been proposed and developed to improve the flexibility of networks and to address the issues associated with IP networks. However, the existing overlay networks have two problems: (1) performance degradation due to full-mesh tunneling and (2) increase in development cost due to the tightly coupled control and data planes. To solve these problems, we introduce a new abstraction layer for overlay networks in the existing network layering model. Based on the layering model, we designed and implemented a protocol stack, called ovstack, as a common data plane for overlay networks. In this manuscript, we describe the details of ovstack and of two control plane systems as a proof-of-concept. We evaluate the forwarding performance of ovstack and demonstrate the control plane systems. The results of the performance evaluation show that the average delay of packet forwarding is decreased by 12% and that jitter is 8% lower than one of the existing overlays. Our evaluations confirm that ovstack can contribute to the construction of overlay networks for each requirement on current networks.

• 出版日期2015-12-9