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[ncc-services-wg] dnsmon - why?
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Henk Uijterwaal (RIPE-NCC)
henk at ripe.net
Fri Sep 5 21:11:45 CEST 2003
Randy, > at some ripe meeting or another, i presented a bit of research. in that > research, we conducted an experiment using some "BGP Beacons." within > weeks, ripe/ncc had set up a bunch of these beacons, You were one of the people asking for this, quoting from the minutes of the Rhodos meeting: <quote> Minutes Routing WG at RIPE43 [...] C. Route Flap Damping: Harmful? (Randy Bush) [...] Route flap damping parameters may have to be revised, but more data are needed; Randy asks for help, need more BGP beacons installed. </quote> > in a fashion that was not usable for our experiments There are, at the moment, 5 beacons (or sets of beacons) worldwide. All 5 are set up slightly differently, and thus show different behavior, that may or may not make them suitable for your specific experiment. And in the paper you submitted to IMW2003, you even question yourself whether the NCC beacon data is suitable for your studies or not. Then, our beacon setup has been published but is in no way cast in stone. If you want us to make chances, tell us WHAT you want changed. In fact, this is already about to happen, we are currently discussing changes in the beacon pattern with one of the co-authors of the 2 papers mentioned above, including a pattern that can only be done with the RIS. > and with no clear goal other than <aol>ME TOO</AOL>. Besides responding to the question raised by you, we spoke to several BGP experts afterwards, and all seemed to agree that this was a good idea, so we did it. And before anybody complains that all this cost money, the beacons come essentially for free with the RIS infrastructure, setting them up was half an afternoon of work for 1 engineer, maintaining them is a matter of minutes per week. > to my knowledge, no researcher has used them to date. You are wrong here, 1 thesis has been published about the data http://www.net.informatik.tu-muenchen.de/~sara/thesis/ and I know for a fact that 2 papers to be submitted to refereed conferences are in the works. Henk ------------------------------------------------------------------------------ Henk Uijterwaal Email: henk.uijterwaal at ripe.net RIPE Network Coordination Centre WWW: http://www.ripe.net/home/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 ------------------------------------------------------------------------------ That problem that we weren't having yesterday, is it better? (Big ISP NOC)
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