6:30 AM meeting on layer 2 VPNs... Yuck! The problem with technology is the rapid rapacious pace at which it evolves. It is exhausting to try to keep up. Ever year or two "everything" changes, and I mean everything. When you're a brick layer, you can be a good brick layer and in 10 years, you'll still be a good brick layer, carpenter, etc... I'm not demeaning these professions, on the contrary, I'm envious.