Hello, I'm Matthew Nance-Hall (Matt), a PhD Candidate at the University of Oregon working with Prof. Ram Durairajan (UO), Prof. Paul Barford (UW-Madison) and Prof. Klaus-Tycho Foerster (TU Dortmund). I was hoping someone could shed operator perspective on a research question we're exploring. We're interested in the timescales and mechanisms used to adjust data paths and wondering where gaps might exist between traffic engineering (TE), fast fail-over, and routing. We're specifically curious about spatio-temporal characteristics where gaps might exist. For example, the topological scope of an event (congestion or outage) and the timescale for adjustments to be made. I'm aware there are operator tools such as fast fail-over and TE for making changes confined to single links or across the whole network but wonder if there is a place for events that have broader scope (beyond a single link but less than the whole network) where new inquiry and exploration would be welcome. Thank you, Matt