[atlas] Sudden increase in RTT to a.root-servers.net
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Paul Wouters
paul at xelerance.com
Sat Nov 5 23:09:31 CET 2011
On Sat, 5 Nov 2011, Daniel AJ Sokolov (lists) wrote: > This is not urgent and probably not important. > > I have noticed that with the turn of the month (31st-> 1st) the RTT from my > probe (#1118) to a.root-servers.net has gone up a lot. It went from ~32ms to > ~115 ms (with a max of 494 ms). > > I checked the statistics of a few other public probes ("randomly" picked) and > could not find that pattern repeated there. > > So what does this tell me? Has my ISP downgraded one of their uplinks? > > There is only three other probes here in Canada and they are not public, so I > can't check their numbers. Mine should be public? probe ID 223 in downtown Toronto. a.root-servers.net 198.41.0.4 86.274 ms / 86.633 ms / 87.010 ms 2011-11-05 21:59:19 UTC http://zpm00.atlas.ripe.net/atlas/rrd.png?prb_id=223&msm_id=1009&graph=tiny_rtt&type=hourly&end=last I'm using DSL with Teksavvy, and getting a-root from: $ dig +short +norec @a.root-servers.net hostname.bind chaos txt "ans13-lax2" Paul
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