In Prague we had one experiment that we wanted to run in the IETF network but were unable to do so due to privacy concerns. The folks behind the experiment have now redesigned their experiment to reduce those concerns, and we plan to run it in the IETF network from Wednesday to Thursday. The affected SSIDs are “ietf” and “ietf-legacy”. The experiment and background related to it described further in http://net.hs-augsburg.de/projects/2015/10/21/ietf-broadcast-revisited.html https://tools.ietf.org/html/draft-winfaa-broadcast-consider-01 The goal of the experiment is to see whether there is personally identifiable information in various broadcast and multicast packets in the IETF network. The general arrangement is to collect broadcast and multicast traffic, hash it in a way that allows (probabilistic) comparisons to be made within the data. The original information does not leave the IETF network NOC, and a salted hashing process is setup in a manner that does not allow tracking back to individuals. The process will end up losing some information that humans would be able to recognise as personally identifying information, so the results of the experiment will only be able to provide a lower bound on the amount of information. Rolf will have more detailed description of the process if anyone is interested. Jari Arkko
