Ironstack: Performance, Stability and Security for Power Grid Data Networks
Zhiyuan Teo, Vera Kutsenko, Ken Birman, Robbert van Renesse · 2014
Operators of the nationwide power grid use proprietary data networks to monitor and manage their power distribution systems. These purpose-built, wide area communication networks connect a complex array of equipment ranging from PMUs and synchrophasers to SCADA systems. Collectively, these equipment form part of an intricate feedback system that ensures the stability of the power grid. In support of this mission, the operational requirements of these networks mandates high performance, reliability, and security. We designed Iron Stack, a system to address these concerns. By using cutting-edge software defined networking technology, Iron Stack is able to use multiple network paths to improve communications bandwidth and latency, provide seamless failure recovery, and ensure signals security. Additionally, Iron Stack is incrementally deployable and backward-compatible with existing switching infrastructure.