[dns-wg] New on RIPE Labs: Tool to Measure K-root Performance

Hi Daniel


Oct last year when I took it as routing glitch while later someone told me
that it was downtime on Delhi node.

Here's my blog post<http://anuragbhatia.com/networking/messed-up-connectivity-of-root-servers-in-india/>at
that time with some traceroutes & data.

Other then that, in Jan there was issue of k-root node connectivity for
biggest Govt. based ISP - BSNL AS9829. You can see my blog post data
here<http://anuragbhatia.com/dns/poor-performance-of-k-root-server-delhi-node/>
.


Thanks.

On Fri, Feb 17, 2012 at 10:30 PM, Daniel Karrenberg <
daniel.karrenberg at ripe.net> wrote:

>
> On 17.02.2012, at 17:12, Anurag Bhatia wrote:
>
> Nice report Mirjam
>
>
> Thanks for sharing. I found k-root to be having issues in India multiple
> times. Sometimes due to downtime of Delhi node
>
>
> when exactly did you observe the Delhi node was down?
>
>
> , other time due to messed up routing which takes off traffic outside
> India, increasing latency from 30ms to over 150ms.
>
>
> That is difficult for us to remedy. But we can try if we get concrete
> reports.
>
>
> I am curious to see RIPE probe collected data for the k-root.
>
>
>
> http://atlas.ripe.net/contrib/rtt_maps.html?msm_id=1&proto=4&mapType=terrain&mapZoom=4&mapCenter=22.162665,74.718262
>
>
> http://atlas.ripe.net/contrib/root_anycast.html?msm_id=1&proto=4&mapType=terrain&mapZoom=4&mapCenter=13.7078,74.356934
>
>
> http://atlas.ripe.net/contrib/comparative_root_rtt.html?proto=46&mapType=terrain&mapZoom=4&mapCenter=21.151816,73.716064
>
>
>
> http://dnsmon.ripe.net/dns-servmon/server/plot?server=k.root-servers.net;type=drops;tstart=1329400800;tstop=1329487199;af=ipv4
>
>
>
>
>


-- 

Anurag Bhatia
anuragbhatia.com
or simply - http://[2001:470:26:78f::5] if you are on IPv6 connected
network!

Twitter: @anurag_bhatia <https://twitter.com/#!/anurag_bhatia>
Linkedin: http://linkedin.anuragbhatia.com
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