[lacnog] Google DNS from South America

Vie Oct 11 15:27:01 BRT 2013

Desde una AS/400 en Paraguay:

ping '8.8.8.8'
Verificando la conexión con el sistema principal 8.8.8.8.
La respuesta PING 1 procedente de 8.8.8.8 tardó 191 ms. con 256 bytes. TTL
  41.
La respuesta PING 2 procedente de 8.8.8.8 tardó 189 ms. con 256 bytes. TTL
  41.
La respuesta PING 3 procedente de 8.8.8.8 tardó 189 ms. con 256 bytes. TTL
  42.
La respuesta PING 4 procedente de 8.8.8.8 tardó 177 ms. con 256 bytes. TTL
  41.
La respuesta PING 5 procedente de 8.8.8.8 tardó 179 ms. con 256 bytes. TTL
  42.
Tiempo ida y vuelta (en milisegundos) mín/med/máx = 177/185/191.
Estadísticas de verificación de conexión: 5 satisfactorias de 5 intentos

On Fri, Oct 11, 2013 at 2:47 PM, Carlos M. Martinez
<carlosm3011 en gmail.com>wrote:

> I've configured a cacti ping probe on 8.8.8.8 and 8.8.4.4, just to see
> how it evolves. If I see something interesting from my vantage point (AS
> 28000), I'll post.
>
> cheers!
>
> ~Carlos
>
> On 10/11/13 3:12 PM, Doug Madory wrote:
> > Here's a before/after to 8.8.8.8 from Rio. As with all of the cases in
> South America we have seen, the traceroute reaches Google's local network
> and then is re-routed internally back to the US. In the case below, the
> same Google IP in Brazil is traversed both before and after
> (209.85.254.136).
> >
> > Before:
> >
> > 0     x               -1      ms
> > 1     x               4.181   ms
> > 2     209.197.0.214   ve427.r1.mi.hwng.net    7.857   ms      Highwinds
> Network Group, Inc.
> > 3     187.16.218.58   as15169-s2.sp.ptt.br    9.057   ms      Núcleo de
> Inf. e Coord. do Ponto BR - NIC.BR
> > 4     209.85.254.136          9.699   ms      Google Inc.
> > 5     72.14.233.89            9.744   ms      Google Inc.
> > 6     64.233.175.18           9.906   ms      Google Inc.
> > 7     8.8.8.8 google-public-dns-a.google.com  10.283  ms      Google
> Incorporated
> >
> > After:
> >
> > 0     x               -1      ms
> > 1     x               5.527   ms
> > 2     209.197.0.214   ve427.r1.mi.hwng.net    17.72   ms      Highwinds
> Network Group, Inc.
> > 3     187.16.218.58   as15169-s2.sp.ptt.br    13.985  ms      Núcleo de
> Inf. e Coord. do Ponto BR - NIC.BR
> > 4     209.85.254.136          10.505  ms      Google Inc.
> > 5     72.14.236.174           20.456  ms      Google Inc.
> > 6     72.14.235.106           143.537 ms      Google Inc.
> > 7     209.85.252.96           178.19  ms      Google Inc.
> > 8     209.85.248.29           137.243 ms      Google Inc.
> > 9     8.8.8.8 google-public-dns-a.google.com  137.921 ms      Google
> Incorporated
> >
> > Doug Madory
> > 603-643-9300 x115
> > Hanover, NH
> > "The Internet Intelligence Authority"
> >
> > On Oct 10, 2013, at 2:28 PM, Doug Madory <dmadory en renesys.com> wrote:
> >
> >> We're not seeing this happen Mexico.
> >>
> >> I'll grab a couple before and after traceroutes from our data. In each
> case, the traceroute gets to the local Google presence before it is
> directed back to the US instead of hitting a local server as it did
> previously.
> >>
> >> Doug Madory
> >> 603-643-9300 x115
> >> Hanover, NH
> >> "The Internet Intelligence Authority"
> >>
> >> On Oct 10, 2013, at 1:05 PM, Octavio Alvarez <alvarezp en alvarezp.ods.org>
> wrote:
> >>
> >>> On 10/10/2013 08:14 AM, Doug Madory wrote:
> >>>> We have noticed a change in the latencies to Google's public DNS
> services (8.8.8.8 and 8.8.4.4) coming from locations in South America
> starting mid-September:
> >>>>
> >>>> http://www.renesys.com/2013/10/internet-paths-matter-performance/
> >>>>
> >>>> Have any of the members of the LACNOC community noticed this change?
> >>>
> >>> In Tijuana, Mexico I see it ok. Can you post a traceroute to it (or
> >>> better, an mtr)?
> >>>
> >>
> >
> >
> >
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