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Design and Implementation of an SD-WAN VPN System to Support Multipath and Multi-WAN-Hop Routing in the Public Internet

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posted on 04.06.2020 by Steven Lee, Kwan-Yee Chan, Ting-Yun Chen
We present the design of a multipath multi-WAN-hop SD-WAN (MMS) system to realize an overlay network on top of the public internet. The MMS includes an SD-WAN system controller (SSC) and MMS gateways (MMSGs), one for each branch. The SSC is responsible for configuring the routing paths for the whole system. The MMSG uses low-cost access networks such as PON, xDSL, PLC, cable modems, and even LTE/5G to access the public internet. We propose an IP address swapping technique to realize multihop routing in the public internet. In addition, we implement IP over MPTCP (IPoMP) in MMSGs, in which a flow between a pair of branches is mapped into multiple MPTCP subflows to exploit multipath routing.

History

Email Address of Submitting Author

steven.sswlee@gmail.com

ORCID of Submitting Author

https://orcid.org/0000-0002-4935-9263

Submitting Author's Institution

National Chung Cheng University

Submitting Author's Country

Taiwan

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Exports