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[mat-wg] suggestions for atlas service
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Robert Kisteleki
robert at ripe.net
Fri May 13 11:56:01 CEST 2011
Hi, On 2011.05.05. 17:15, Piotr Strzyzewski wrote: > Hi > > Two suggestions: > > 1. Some looking-glass from the probe. Simpe ping/traceroute from the > probe triggered from the web interface could be nice. I would think that this will be covered by the user defined measurements feature, where the measurement is a one-off, not a continuous one. > 2. Better probe location display. Currently I host two probes, both 10cm > one from each other, put into two different ASes. When I have put > exactly the same geo data, the "display" mechanism put one of it onto > the other one. This is a tricky one. Background information: we'd rather not publish the exact geo-coordinates the hosts put in, because of privacy concerns. So what we do now is that whenever we display probes on a map, we round the geo-coordinates to two digits. This introduces a "random" error of up to 1000 meters or so. (If you zoom in on Amsterdam, where we have enough probes, you'll see that all probes are aligned into a neat, sparse matrix; it's because of this.) As a consequence, if two probes are located very close to each other, the rounding makes them show up as overlapping. You could try to move your probe a bit, like to the next street or so to see if that helps. The RTT map is probably the best page to check the outcome. Regards, Robert > Piotr
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