eHDDP: enhanced Hybrid Domain Discovery Protocol for network topologies with both wired/wireless and SDN/non-SDN devices
Abstract
Handling efficiently both wired and/or wirelessdevices in SDN networks is still an open issue.eHDDP allows the SDN control plane to discoverand manage hybrid topologies composed of both SDNand non-SDN devices with wired and/or wirelessinterfaces, thus opening a path for the integration ofIoT and SDN networks. eHDDP has been thoroughlyevaluated in different scenarios and exhibits goodscalability properties since the number of requiredmessages is proportional to the number of existinglinks in the network topology. Moreover, the obtaineddiscovery and processing times are small enough tosupport scenarios with low mobility devices since theyare in the range of hundreds of milliseconds
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Actas de las XV Jornadas de Ingeniería Telemática (JITEL 2021), A Coruña (España), 27-29 de octubre de 2021. This work is licensed under a Creative Commons 4.0 International License (CC BY-NC-ND 4.0) eHDDP: enhanced Hybrid Domain Discovery Protocol for network topologies with both wired/wireless and SDN/non-SDN devices Isaias Martinez-Yelmo, Joaquin Alvarez-Horcajo, Juan A. Carral, Diego Lopez-Pajares Universidad de Alcal´ a, Departamento de Autom´ atica, 28805 Alcal´ a de Henares, Spain. {isaias.martinezy, j.alvarez, juanantonio.carral, diego.lopezp}@uah.es Resumen Handling efficiently both wired and/or wireless devices in SDN networks is still an open issue. eHDDP allows the SDN control plane to discover and manage hybrid topologies composed of both SDN and non-SDN devices with wired and/or wireless interfaces, thus opening a path for the integration of IoT and SDN networks. eHDDP has been thoroughly evaluated in different scenarios and exhibits good scalability properties since the number of required messages is proportional to the number of existing links in the network topology. Moreover, the obtained discovery and processing times are small enough to support scenarios with low mobility devices since they are in the range of hundreds of milliseconds. Key Words—Hybrid, SDN, WSN, IoT, Discovery, unidirectional, bidirectional I. SUMMARY This submission presents enhanced Hybrid Domain Discovery Protocol (eHDDP), a work previously published in [1], it is an enhanced version of Hybrid Domain Discovery Protocol (HDDP) [2], which allows its use not only in wired interfaces but also in wireless interfaces, including low powered wireless technologies, in an efficient way. eHDDP is the first proposal offering a general solution to the problem of discovering fully hybrid SDN network topologies comprised of both Software Defined Networking (SDN) and non-SDN devices with wired and/or wireless interfaces to the best of our knowledge. Some interesting use cases of the discovery of wireless hybrid SDN networks are the integration of Wireless Sensor Networks (WSNs) or the IoT networks by the SDN control plane to manage and supervise them in a more accurate way. The main contributions of this work published in [1] are: The upgrade of the HDDP header in the control messages to support different types of wireless interfaces. The header fields have been revised to minimize its size to support technologies with a small Maximum Transfer Unit (MTU) size. The definition of a protocol logic for wireless interfaces. This new logic considers the number of neighbours is unknown in a wireless interface since it may change with time because of mobile devices. The detection of both unidirectional and bidirectional links in wireless scenarios. A reference implementation of eHDDP comprised of a network agent in non-SDN devices and an application in the SDN control plane by using Open Network Operating System (ONOS) and the OpenFlow protocol. The enhancement of previously existing network emulation tools to properly deploy and perform experiments with wireless Ad-Hoc networks with multiple devices. A thorough evaluation of eHDDP under different types of network topologies: wired, wireless and both wired and wireless topologies. ACKNOWLEDGEMENT This work was funded by grants from Comunidad de Madrid through Project TAPIR-CM (S2018/TCS-4496) and Project IRIS-CM (CM/JIN/2019-039), from Junta de Comunidades de Castilla la Mancha through Project IRIS-JCCM (SBPLY/19/180501/000324). REFERENCES [1] Joaquin Alvarez-Horcajo, Elisa Rojas, Isaias Martinez-Yelmo, Marco Savi, Diego Lopez-Pajares, ”HDDP: Hybrid Domain Discovery Protocol for Heterogeneous Devices in SDN”, Computer Networks, vol. 191, id 107983, May. 2021 [2] Isaias Martinez-Yelmo, Joaquin Alvarez-Horcajo, Juan A. Carral, Diego Lopez-Pajares, .eHDDP: Enhanced Hybrid Domain Discovery Protocol for network topologies with both wired/wireless and SDN/non-SDN devices”, IEEE Communications Letters, vol. 24, no. 8, 1655-1659, Aug. 2020 253