My Perspective on our Current Trajectory We must find ways to control complexity, RSN And BTW, it's all going the other way We could easily cross a complexity barrier that puts fundamental limits on our ability to efficiently scale Or causes the Internet to completely collapse Or prevents IP transport from becoming a profitable business Or prevents us from reaching the performance levels we want Or ... BTW, possible complexity metric # of IDs summited in month prior to the IETF Last IETF: > 800 Suggests that we have an abstraction that handles scale nicely Does this number represent a move towards "de-abstraction"? [SMD]