[lacnog] Google DNS from South America

[Carlos M. Martinez]

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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