Yes the last two are too subjective and/or require some sort of real world interaction with operators so not practical. For Network Scale, number of IPs could be a measure but I'm certain. For example my data centre have given be two different IPs in, but they would prefer next time I move machines around to place me on my own /25. More IPs certainly, but only two machines. I wonder if there is a means to measure network scale by number of connected hosts or probably easier just to count active IPs (vs assigned block). As for Connectivity Type I was thinking what bandwidth resources does a network appear to have. How fast can they go and what's their average.