My Perspective on our Current Trajectory We must to 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 This time: > 800