Keith Moore wrote: > ... Finally, if you want > any app - even this "special" app, to be aware of topology, > then the first thing you need is globally scoped labels for > points in the topology - which is exactly what exposing site > locals to applications denies you. What ??? Yes we need a way to differentiate them, but eliminating the local one doesn't accomplish that. The labels FEC0::/10 vs. 2::/3 provide exactly the scoping differentiator this statement claims to need. Your comment appears to be so focused on the 'local' aspect of one of the labels, that it missed the point that the other label is global. Making all labels global only works if the routing is in fact globally flat. We know it isn't, so we should provide a simple way to figure it out for processes that care. We should not be eliminating the only means we have to figure it out. Yes, we need to complete the work on making the 38 bits globally unique, but that can't happen if we start by eliminating the first 10. Tony