routing myths: routing behavior myth: causes of growth & instability of routing system route table growth exponential data: global prefixes grew 4% may->nov 01; 37% in nov00-01 (RouteViews) myth: peering richness is growing (see previous slide) data: link/node ratio (average degree), peering richness, and churn did not significantly change in 2000-2001, although lot of changes within ASes.