Summary
International Conference on Emerging Technologies for Communications
2023
Session Number:P3
Session:
Number:P3-31
Implementation and Evaluation of Hybrid Wired/Wireless SDN Switch
Jiayang Chen, Kien Nguyen, Hiroo Sekiya,
pp.-
Publication Date:2023/11/29
Online ISSN:2188-5079
Summary:
A hybrid wired/wireless software-defined networking (SDN) switch is a networking device that can switch wired and wireless frames (e.g., Ethernet and IEEE 802.11) with SDN capability. This paper presents an implementation of such an SDN switch using an SDN controller (i.e., POX), Open vSwitch (OVS) for Wi-Fi and Ethernet interfaces. The switch can operate when the Wi-Fi interface is in a client or access point (AP) mode. The switch can smoothly integrate the AP mode's interface. With the client mode, we develop an SDN module on the SDN controller to solve the addresses MAC address mismatch to effectively managed wireless communication. To validate the hybrid SDN switch, we build the switch with an IEEE 802.11n interface (in the client mode) utilizing the 2.4 GHz band and a 1 Gbps Ethernet one. We then experiment with switching packets between a wired and a Wi-Fi network to show the switching capability when the Wi-Fi link is in the client and AP modes. In the evaluation with the client mode, the TCP and UDP throughput are approximately 98.60 Mbps and 106.41 Mbps, respectively. With the Wi-Fi interface in the AP mode, we compare the switch performance with a hotspot created by the Ubuntu Network Manager. The results show that the throughput and round-trip time (RTT) values are comparable, indicating the SDN will not cause significant overhead.