Ok this is pretty slick. It always annoyed me that Arista, Juniper, IBM, everyone was trying to tie me into their poorly implemented VLAG structure rather than just give me solid and inexpensive layer 2 performance for connectivity and let me worry about the aggregation. Looks like Facebook has done an excellent job at that, and I suspect it caught both Amazon and Google off guard. Anyone know if FB is planning EC2/GAE type offerings? Looks like they could do it better than either Amazon or Google with this architecture backing them up.