I agree with Dave S., either people are going to believe the marketing hype or become educated about what matters relative to the Internet topology. Most are just going to believe the hype so publishing a document with artificial labels is most likely not meaningful. (ref: Bradner testing and equipment throughput results - the vendors make the equipment do well in the tests but the real world is a different story). In particular, the item: -- need special measures to deal with BGP scaling issues inside their AS (or multiple AS) such as confederations, clusters, etc. worries me; this is like announcing at the UN that you can only vote if you have nuclear weapons. Some will be needless encouraged to add complexity to their networks simply to be a "Tier 1". Communications Week (April 1, pp 135-139) has the usual limited view of the world, but its better than nothing, with some related commentary from noted dignitaries. There is a map, showing interconnects and trying to explain how they work. It's probably on their web page somewhere http://techweb.cmp.com/cw/current but I couldn't find it (Paul F. is the search tool guy in our group :-). have fun dave