Re: anycast stability experiment
- Date: Wed, 17 Nov 2004 11:15:52 +0100
- Mail-followup-to: Randy Bush randy@localhost,ops sheep willing to be censored by a non-op nanog@localhost,apops@localhost, sig-routing@localhost, routing-wg@localhost,afnog@localhost
The RIPE NCC dnsmon (http://dnsmon.ripe.net) has collected such data for
all root servers from dozens of places for about two years already. You
are welcome to the raw data. NB: The further back in time the more work
it will be for us to dig out raw data.
Differences to your set-up:
- most probes are not near the "edges" of the net, for most definitions of "edge"
- probing times are properly randomised
- the mean probing interval is 60s
- UDP only
[Continuous but not scientifically rigorous examination of the data
shows that your bet is a pretty safe one. In other words: for practical
purposes routing is stable at all proble locations. So the data is
in fact pretty boring. If it weren't as boring, k.root-servers.net
would not be anycast the way it is.]
Daniel
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