Cyber-physical interdependency in dynamic software-defined optical transmission networks

Houman Rastegarfar, Daniel C. Kilper, Madeleine Glick, Nasser Peyghambarian

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


Software-defined networking (SDN) has been proposed as a next-generation control and management framework, facilitating network programmability to address emerging dynamic application requirements. The separation of control and data planes in SDN demands the synergistic operation of the two entities for globally optimized performance. We identify the collaboration of the control plane and the data plane in software-defined optical transmission systems as a cyber-physical interdependency where the "physical" fiber network provides the "cyber" control network with means to distribute control and signaling messages and in turn is itself operated by these "cyber" control messages. We focus on the cyberphysical interdependency in SDN optical transmission from a network robustness perspective and characterize cascading failure behaviors. Our analysis suggests that topological properties pose a significant impact on failure extensibility. We further evaluate the effectiveness of optical layer reconfigurability in improving the resilience of SDN controlled optical transmission systems.

Original languageEnglish (US)
Article number7367911
Pages (from-to)1126-1134
Number of pages9
JournalJournal of Optical Communications and Networking
Issue number12
StatePublished - Dec 2015


  • Cyber-physical interdependency
  • Failure cascade
  • Reconfiguration
  • Robustness
  • Software-defined network (SDN)
  • Topology

ASJC Scopus subject areas

  • Computer Networks and Communications


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