[atlas] (not) disconnected probes
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Romain Fontugne
romain at iij.ad.jp
Wed Mar 11 14:31:20 CET 2020
Hi Viktor, Thanks, I have learnt something, I didn't know about that Sanatorium controller. Still I am amazed that these probes are doing that at the exact same time, are all the probes tagged "Resolves AAAA/A Correctly" at the same time? Thanks, Romain On 3/11/20 8:50 PM, Viktor Naumov wrote: > Hi Romain, > > I was wrong, the probe diagnostics works correctly. The probes seem > facing local DNS misconfiguration (cannot resolve controller) or not > allowed to connect to other controllers but Sanatorium. Such probes > connect to Sanatorium controller by IP address. When a probe is > connected to Sanatorium controller and tagged as "Resolves AAAA/A > Correctly" it gets kicked from Sanatorium to a normal controller which > it cannot connect due to mentioned reasons it gets into loop of > disconnects. > > I also cannot exclude the probe USB flash corruption since it can lead > to weird probe behavior. > > wbr > /vty > > On 3/11/20 9:32 AM, Viktor Naumov wrote: >> Hi Romain, >> >> I'm checking what the problem can be. Art first glance it looks like a >> false positive in the probe diagnostics system. It causes probe >> redirect to the "Sanatorium" controller and connection flips. >> >> I will be back to you. >> >> wbr >> /vty >> >> On 3/11/20 6:04 AM, Romain Fontugne wrote: >>> Hi, >>> >>> I found that the following probes are reported disconnected for >>> several hours a day, more or less at the same time, but all their >>> built-in measurements are there and seem normal: >>> >>> https://atlas.ripe.net/probes/32639/#!tab-network >>> https://atlas.ripe.net/probes/28818/#!tab-network >>> https://atlas.ripe.net/probes/19107/#!tab-network >>> https://atlas.ripe.net/probes/14831/#!tab-network >>> https://atlas.ripe.net/probes/11982/#!tab-network >>> >>> These probes are in different ISPs and locations in Japan. >>> Any idea why this is happening? something funky on the controllers side? >>> >>> Thanks, >>> Romain >>> >> >> >
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