Julius, at IETF we discussed some methods to prevent, or at least detect, blackholes (with a "blackhole" being a node that claims to be a better route for packets than it really is, regardless of whether it then drops all traffic or not).
The solution I was thinking about involved taking a "link cost" from the logs of traffic to a specific destination (over the whole route), and then comparing it to the metric to that destination advertised by neighbors. You had a different approach involving nodes signing their link cost estimations. Can you expand on that for the list? Thanks! -Jehan
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