SDN-WISE & ONOS

What is SDN-WISE?

SDN-WISE is a Software Defined Networking solution for WIreless SEnsor Networks. SDN-WISE simplifies wireless sensor network management by specifying a software-defined networking protocol for wireless sensor nodes. The key characteristics of SDN-WISE are the following:

• It has flexible flow tables, which allow the creation of rules that match any byte of the packet arriving at the node. This feature is particularly useful in WSNs, since an SDN-WISE node can create rules for different kind of network protocols, such as 6LoWPAN, Zigbee, etc.
• It is energy-efficient, since it uses duty cycles.
• It is stateful and, therefore, Turing complete. This enables SDN-WISE nodes to be instructed to implement any routing protocol.

What is ONOS?

ONOS is a new SDN network operating system designed for high availability, performance, and scale-out.

This repository contains a fork of ONOS, enriched with the software modules needed to interact with SDN-WISE networks and provide functionality for unified control of networks of sensors and switches. This is achieved by introducing new and by extending already existing ONOS components. More specifically, apart from the original ONOS ones, ONOS-IoT includes the following subsystems:

• SensorNode Subsystem. This subsystem introduces extensible APIs that enable the management of sensor nodes, whereas it also provides information about the nodes of the network, such as their battery level, their neighborhood, etc.
• SensorFlowRule Subsystem. This subsystem builds on top of existing ONOS FlowRule subsystem, however it also provides APIs that enable more flexible creation of rules, without restricting to particular protocol (such as IP), so that it can be easily used for sensor nodes.
• SensorPacket Subsystem. This subsystem also builds on top of existing ONOS components for its Packet Subsystem, however, it generalizes the notion of a packet, so that it is restricted to packets used only in infrastructured networks.

Apart from the aforementioned subsystems, we also introduces an implementation of the server part of the SDN-WISE protocol, which enables the communication with SDN-WISE nodes. By leveraging this protocol, the SensorPacket and the SensorNode subsystems are able to build a unified view of OpenFlow and SDN-WISE networks, thereby providing a holistic view of an IoT infrastructure. All individual components of this infrastructure are either managed by existing subsystems, in case they are hosts connected to OpenFlow switches, or by the SensorNode subsystem, in case they are sensor nodes. The prototype network applications that have been developed as a proof concept for our solution can be found here. These applications include:

• An integrated packet forwarding application, which considers both OpenFlow and SDN-WISE network segments in order to do optimal packet forwarding. This application has been evaluated under a MapReduce scenario.
• A geographic forwarding application, which chooses the next hop of a sensor node using the Euclidean distance.
• A geographic multicast application, which is based on the previous one but has been designed for the multicast case.

Note that the last two network applications are still in development stage.

To use SDN-WISE & ONOS, please also refer to the following sources:

• To emulate an heterogeneous networks using SDN-WISE, ONOS, and Mininet please check this tutorial.
• To try SDN-WISE on real devices download sdn-wise-contiki from here and check the README for details on how to build SDN-WISE and Contiki.

Papers

Our approach is detailed in:

@ARTICLE{Anadiotis:2018,
  author    = {{Angelos-Christos G.} Anadiotis and Sebastiano Milardo and Giacomo Morabito and Sergio Palazzo},
  journal   = {IEEE Internet of Things Journal},
  doi       = {10.1109/JIOT.2018.2805191},
  title     = {Towards Unified Control of Networks of Switches and Sensors through a Network Operating System},
  year      = {2018},
  url       = {http://ieeexplore.ieee.org/document/8289363/}
}

@inproceedings{Anadiotis:2015,
  author    = {{Angelos-Christos G.} Anadiotis and Laura Galluccio and Sebastiano Milardo and Giacomo Morabito and Sergio Palazzo},
  booktitle = {2015 IEEE 2nd World Forum on Internet of Things (WF-IoT)},
  doi       = {10.1109/WF-IoT.2015.7389118},
  title     = {{Towards a software-defined Network Operating System for the IoT}},
  year      = {2015},
  url       = {http://ieeexplore.ieee.org/document/7389118/},
}