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[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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