[caiu] Latencia no dns da Google alta novamente

Alexandre Pires Avilla [Dominioz Telecom] ale.avilla em dominioz.com.br
Domingo Setembro 22 17:01:06 BRT 2013


Lista de locais e redes dos anycast do dns do google

Google Public DNS servers are available worldwide. 
Here are the subnets from which Google Public DNS sends requests to authoritative nameservers, and their associated IATA airport codes:
64.233.162.0/24 gru
64.233.168.0/24 iad
74.125.16.0/24 tpe
74.125.17.0/24 bru
74.125.18.0/24 grq
74.125.19.0/24 mrn
74.125.176.0/24 mrn
74.125.178.0/24 atl
74.125.179.0/24 atl
74.125.180.0/24 ber
74.125.181.0/24 bru
74.125.182.0/24 cbf
74.125.183.0/24 cbf
74.125.184.0/24 chs
74.125.185.0/24 chs
74.125.186.0/24 dls
74.125.187.0/24 dls
74.125.188.0/24 dub
74.125.189.0/24 fra
74.125.191.0/24 hkg
173.194.96.0/24 dub
173.194.97.0/24 kul
173.194.98.0/24 lpp
173.194.99.0/24 tul
209.85.224.0/24 cbf
2404:6800:4001::/48 kul
2404:6800:4005::/48 hkg
2404:6800:4008::/48 tpe
2607:f8b0:4001::/48 cbf
2607:f8b0:4002::/48 atl
2607:f8b0:4003::/48 tul
2607:f8b0:4004::/48 iad
2607:f8b0:400c::/48 chs
2607:f8b0:400d::/48 mrn
2607:f8b0:400e::/48 dls
2800:3f0:4001::/48 gru
2a00:1450:4001::/48 fra
2a00:1450:4008::/48 ber
2a00:1450:400b::/48 dub
2a00:1450:400c::/48 bru
2a00:1450:4010::/48 lpp
2a00:1450:4013::/48 grq
This list is subject to additions, modifications, and even reductions as we continue to deploy and support our service.
O do brasil esta dentro da faixa do GRU

Atenciosamente,

Alexandre Pires Avila
Network Engineer
Tecnologia e Conectividade
Dominioz Serviços de Telecomunicações

TargetNet - Banda Larga - www.targetnet.com.br
Vale Link - Acesso Dedicado - www.valelink.com.br
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Central de Atendimento: 0800 940 4975
Mobile: [12] 9745.9679
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> Em 20/09/2013, às 18:31, "Raffaello Vaselli" <raffav em msn.com> escreveu:
> 
> Prezados,
> 
> Será que a google fez alguma alteração,  ou e algum problemas de rotas no brasil
> nessas ultimas semanas de setempro a latencia da google passou de +/- 25ms para 120-300ms
> 
> Ping via Minha empresa
> HOST                                     SIZE TTL TIME  STATUS                                                    
> 8.8.8.8                                    56  43 138ms
> 8.8.8.8                                    56  43 144ms
> 8.8.8.8                                    56  43 137ms
> 8.8.8.8                                    56  43 140ms
> 8.8.8.8                                    56  43 140ms
> 8.8.8.8                                    56  43 149ms
> 8.8.8.8                                    56  43 136ms
> 8.8.8.8                                    56  43 138ms
>    sent=8 received=8 packet-loss=0% min-rtt=136ms avg-rtt=140ms max-rtt=149ms 
> 
> traceroute via minha empresa
> # ADDRESS                                 RT1   RT2   RT3   STATUS                            
> 1 177.38.98.65                            2ms   1ms   1ms                                     
> 2 192.168.211.33                          2ms   2ms   2ms                                     
> 3 192.168.211.9                           3ms   3ms   4ms                                     
> 4 192.168.211.1                           6ms   6ms   5ms                                     
> 5 192.168.210.1                           7ms   6ms   9ms                                     
> 6 192.168.255.1                           7ms   6ms   7ms                                     
> 7 177.129.9.9                             7ms   7ms   9ms                                     
> 8 177.129.8.2                             11ms  12ms  9ms                                     
> 9 187.16.218.58                           21ms  19ms  22ms                                    
> 10 209.85.254.54                           18ms  23ms  17ms                                    
> 11 72.14.238.218                           34ms  26ms  75ms  <MPLS:L=487211,E=4>               
> 12 72.14.233.250                           130ms 128ms 143ms <MPLS:L=532017,E=4>               
> 13 209.85.252.98                           142ms 139ms 139ms <MPLS:L=580299,E=4>               
> 14 209.85.243.254                          155ms 157ms 155ms                                   
> 15 0.0.0.0                                 0ms   0ms   0ms                                     
> 16 8.8.8.8                                 142ms 158ms 138ms              
> 
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> ping velox
> 
> Pinging 8.8.8.8 with 32 bytes of data:
> Reply from 8.8.8.8: bytes=32 time=176ms TTL=45
> Reply from 8.8.8.8: bytes=32 time=183ms TTL=44
> Reply from 8.8.8.8: bytes=32 time=162ms TTL=45
> Reply from 8.8.8.8: bytes=32 time=152ms TTL=45
> 
> Ping statistics for 8.8.8.8:
>    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
> Approximate round trip times in milli-seconds:
>    Minimum = 152ms, Maximum = 183ms, Average = 168ms
> 
> tracert velox 
> 
> Tracing route to google [8.8.8.8]
> over a maximum of 30 hops:
> 
>  1    <1 ms    <1 ms     1 ms  192.168.2.1
>  2     *        *        *     Request timed out.
>  3    76 ms    57 ms    22 ms  xe-6-0-2.545-bot-rj-rotn-j01.telemar.net.br [200
> .149.112.78]
>  4    39 ms    52 ms    31 ms  so-9-3-0.0-gua-sp-rotn-j01.telemar.net.br [200.2
> 23.45.142]
>  5    70 ms    86 ms    54 ms  200164013077.user.veloxzone.com.br [200.164.13.7
> 7]
>  6   105 ms    97 ms    95 ms  72.14.197.249
>  7    92 ms    52 ms    59 ms  209.85.254.54
>  8    61 ms    82 ms    37 ms  72.14.236.174
>  9   187 ms   146 ms   203 ms  72.14.233.250
> 10   180 ms   200 ms   151 ms  209.85.252.96
> 11   152 ms   181 ms   151 ms  209.85.243.254
> 12     *        *        *     Request timed out.
> 13   201 ms   260 ms   172 ms  google [8.8.8.8]
> 
> Trace complete.
> 
> 
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> Ping pelo colocation no Terremark SP da minha empresa Vale lembrar que os testes que efetuava por aqui a latencia era uma media de 8ms 
> 
> Type escape sequence to abort.
> Sending 5, 100-byte ICMP Echos to 8.8.8.8, timeout is 2 seconds:
> !!!!!
> Success rate is 100 percent (5/5), round-trip min/avg/max = 136/138/140 ms
> 
> Traceroute pelo colocation no Terremark SP da minha empresa
> 
> Tracing the route to google-public-dns-a.google.com (8.8.8.8)
> 
>  1 201.94.147.130 4 msec 0 msec 4 msec
>  2 as15169-s2.sp.ptt.br (187.16.218.58) 0 msec 0 msec 0 msec
>  3 209.85.254.54 0 msec
>    209.85.254.136 4 msec 4 msec
>  4 72.14.238.218 12 msec
>    72.14.236.174 12 msec
>    72.14.238.218 8 msec
>  5 72.14.235.106 112 msec 112 msec
>    72.14.233.250 112 msec
>  6 209.85.252.98 120 msec 124 msec
>    209.85.252.96 120 msec
>  7 209.85.248.29 128 msec
>    209.85.248.31 136 msec
>    209.85.243.254 120 msec
>  8  *  *  *
>  9 google-public-dns-a.google.com (8.8.8.8) 140 msec 140 msec 140 msec
> 
> 
> 
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