Hi all,
"You are adding more and more collectors. How many are enough?"
This question came up in a workshop on BGP where there was a proposal to install 1 RRC-like device at _every_ IX in the world. That means something like 100-200 of them. This is a non-trivial operation to install and maintain, so the question came up: what can one do with N points, what does an N+1'th add. Nobody of the BGP analysis folks could give a good answer. (I did suggest that this would be an interesting study: take 1 RRC, do some analysis, add a second, repeat and see what you add, etc.) The handwaving argument is, of course, list all AS that we peer with, list AS present at the new location, if there is a huge difference, you'll learn a lot by adding an IX. If the difference is small, there isn't. Also, we should ask if/how NAP (or whoever) wants to promote peering with the RRC. This is a problem at some locations. Henk ------------------------------------------------------------------------------ Henk Uijterwaal Email: henk.uijterwaal(at)ripe.net RIPE Network Coordination Centre http://www.amsterdamned.org/~henk P.O.Box 10096 Singel 258 Phone: +31.20.5354414 1001 EB Amsterdam 1016 AB Amsterdam Fax: +31.20.5354445 The Netherlands The Netherlands Mobile: +31.6.55861746 ------------------------------------------------------------------------------ 1160438400. Watch this space...