On Fri, 10 Jan 2003, Kurt Erik Lindqvist wrote: > Just out of curiosity on this topic. Is there anyone who ever managed > to get a distributed peering point to work? If I remember history > somewhat correct, the first attempt was D-GIX back in 1993(?). That > failed (if Peter or someone else who was at KTHNOC back then is reading > maybe you can give the facts), and I think I know of 3-4 other attempts > that failed. There's a threshold, defined by a step-function in the price-per-distance of layer-1 services. If you follow that step-function like a line on a topo map until it reconnects with itself, it forms a convex space. Interconnection of switch fabrics within that space is necessary to their success and long-term survival, whereas interconnection of switch fabrics across the border of that space is detrimental to their success and ultimately to their survival. -Bill