MyRiAD: Towards Transport Protocol Agnostic In-Network Resilience

The shift of power systems towards renewable energy and decentralized energy generation requires additional efforts of operators to keep the grid stable. To accomplish this task, grid operators use Intelligent Electronic Devices (IEDs). These IEDs need to communicate with each other, both inside the LAN of a substation, and between distinct substations and control centers over a wide area network (WAN). Such grid control traffic requires high reliability and low latency. While the communication architecture in substation LANs is well established, communication across WANs is still a field of active research. Therefore, we propose MyRiAD, a duplication-based in-network resilience mechanism implemented in the network layer. MyRiAD leverages existing ring structures within network topologies to boost resilience. Our evaluation results demonstrate that MyRiAD reduces end-to-end packet loss by up to 93% compared with related techniques and achieves over 96% loss reduction compared to conventional shortest-path routing.