[caiu] Perda de pacotes dns google via PTT
Diego Canton De Brito
diegocanton em ensite.com.br
Sexta Maio 9 20:17:07 BRT 2014
4.2.2.2 a 4.2.2.6 pertencem a level3
Enviado por Samsung Mobile
-------- Mensagem original --------
De : "J. Tozo" <juniorbsd em gmail.com>
Data:09/05/2014 19:53 (GMT-03:00)
Para: Lista das indisponibilidades da Internet brasileira <caiu em eng.registro.br>
Assunto: Re: [caiu] Perda de pacotes dns google via PTT
Ascenco,
Conforme reportado a perda acontece apenas para os endereços 8.8.8.8 e
8.8.4.4 respectivamente DNS primario e secundario porem o mesmo nao ocorre
para o servidor de DNS terciario 4.2.2.2.
Para as outros endereços realmente nao ocorre perda.
2014-05-09 19:39 GMT-03:00 Eduardo Ascenco Reis <eascenco em nic.br>:
> Prezados Colegas,
>
> A perda de pacotes observada para testes de ping (ICMP) não ocorre para
> IPv6 e nem para o tráfego de aplicações (e.g tcp/80).
>
> Segue alguns testes:
>
> ##################################################################
>
> ptt.br (200.160.1.10) :~$ date; mtr -n -r -c 10 www.google.com
> Sex Mai 9 19:33:41 BRT 2014
> HOST: fly Loss% Snt Last Avg Best Wrst
> StDev
> 1.|-- 2001:12ff:0:1::1 0.0% 10 0.3 0.3 0.3 0.4
> 0.0
> 2.|-- 2001:12ff:2:1::252 0.0% 10 0.4 2.8 0.3 23.8
> 7.4
> 3.|-- 2001:12ff:1::173 0.0% 10 6.3 2.5 0.4 15.6
> 4.9
> 4.|-- 2001:12f8::218:58 0.0% 10 1.0 1.1 1.0 1.8
> 0.3
> 5.|-- 2001:4860::1:0:4f24 0.0% 10 10.5 14.3 1.6 20.7
> 5.5
> 6.|-- 2001:4860::1:0:468c 0.0% 10 10.9 11.5 10.8 17.3
> 2.0
> 7.|-- 2001:4860:0:1::74d 0.0% 10 11.0 11.0 10.9 11.0
> 0.0
> 8.|-- 2800:3f0:4004:801::1014 0.0% 10 10.8 10.8 10.8 10.8
> 0.0
> ptt.br (200.160.1.10) :~$
>
> ##################################################################
>
> ptt.br (200.160.1.10) :~$ date; mtr -4 -n -r -c 10 www.google.com
> Sex Mai 9 19:33:58 BRT 2014
> HOST: fly Loss% Snt Last Avg Best Wrst
> StDev
> 1.|-- 200.160.1.14 0.0% 10 0.3 1.8 0.3 14.6
> 4.5
> 2.|-- 200.160.0.252 0.0% 10 0.3 3.3 0.3 29.8
> 9.3
> 3.|-- 200.160.0.173 0.0% 10 0.4 0.4 0.4 0.4
> 0.0
> 4.|-- 187.16.218.58 30.0% 10 1.0 1.1 1.0 1.1
> 0.0
> 5.|-- 209.85.254.54 30.0% 10 1.2 5.9 1.1 34.6
> 12.6
> 6.|-- 72.14.235.143 20.0% 10 10.6 10.7 10.5 11.4
> 0.3
> 7.|-- 209.85.253.171 20.0% 10 10.9 10.8 10.8 10.9
> 0.0
> 8.|-- 173.194.42.178 10.0% 10 8.6 8.6 8.6 8.6
> 0.0
> ptt.br (200.160.1.10) :~$
>
>
> ##################################################################
>
> ptt.br (200.160.1.10) :~$ date; tcptraceroute www.google.com
> Sex Mai 9 19:36:36 BRT 2014
> Selected device eth0, address 200.160.1.10, port 48165 for outgoing packets
> Tracing the path to www.google.com (173.194.42.177) on TCP port 80
> (http), 30 hops max
> 1 ae1-22.ar3.nu.ptt.br (200.160.1.14) 0.342 ms 0.284 ms 0.276 ms
> 2 ae0-0.core2.nu.registro.br (200.160.0.252) 0.362 ms 0.291 ms 0.300
> ms
> 3 xe-0-0-1-0.gw2.nu.registro.br (200.160.0.173) 0.349 ms 0.329 ms
> 0.322 ms
> 4 as15169-s2.sp.ptt.br (187.16.218.58) 1.037 ms 0.991 ms 0.982 ms
> 5 209.85.254.136 1.416 ms 1.423 ms 1.412 ms
> 6 209.85.245.53 10.891 ms 10.949 ms 10.889 ms
> 7 * * *
> 8 rio01s06-in-f17.1e100.net (173.194.42.177) [open] 13.025 ms 13.024
> ms 13.030 ms
> ptt.br (200.160.1.10) :~$
>
> ##################################################################
>
>
> Atenciosamente,
>
> --
>
> Eduardo Ascenço Reis
>
>
> PTT.br - http://ptt.br/
> NIC.br - http://nic.br/
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--
Grato,
Tozo
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