Characterizing Cyber-Resiliency

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Executive Summary

The restoration requirements for backbone network design have historically been driven by the need to address link failures due, e.g., to accidental fiber cuts. Only in the last 5-7 years the requirements of recovery from cyber attacks induced network failures have surfaced. Both deployed and greenfield networks can benefit from systematic cyber-vulnerability and resiliency characterization which can provide useful insights into the new design paradigm addressing cyber threats. In this paper a technique for characterizing networks for cyber resiliency is suggested based on the network reachability degradation due to node and link failures.

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