Mailing List Archive: NANOG: users

DNS 8.8.8.8 was down

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denys at visp

Nov 29, 2011, 5:06 AM

Post #1 of 3 (723 views)
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DNS 8.8.8.8 was down

Google DNS was down few minutes, at least for few European locations

Here is sample traceroute:

4 213.242.116.25 (213.242.116.25) 39.692 ms 39.776 ms 39.774 ms
5 ae-7-7.ebr1.Paris1.Level3.net (4.69.143.238) 50.933 ms 50.792 ms
50.793 ms
6 ae-47-47.ebr1.London1.Level3.net (4.69.143.109) 57.353 ms
ae-45-45.ebr1.London1.Level3.net (4.69.143.101) 57.580 ms
ae-48-48.ebr1.London1.Level3.net (4.69.143.113) 57.582 ms
7 ae-57-112.csw1.London1.Level3.net (4.69.153.118) 57.577 ms
ae-58-113.csw1.London1.Level3.net (4.69.153.122) 57.693 ms
ae-57-112.csw1.London1.Level3.net (4.69.153.118) 57.817 ms
8 ae-1-51.edge3.London1.Level3.net (4.69.139.73) 57.654 ms 57.631
ms 57.768 ms
9 unknown.Level3.net (212.113.15.186) 57.958 ms 57.531 ms 57.643
ms
10 209.85.255.78 (209.85.255.78) 57.732 ms 57.598 ms 57.573 ms
11 209.85.253.92 (209.85.253.92) 58.300 ms 209.85.253.196
(209.85.253.196) 57.941 ms 209.85.253.94 (209.85.253.94) 58.002 ms
12 72.14.232.134 (72.14.232.134) 63.726 ms 66.249.95.173
(66.249.95.173) 63.614 ms 72.14.232.134 (72.14.232.134) 63.699 ms

After this hop it was dead, now it is working, but seems still there is
minor problems
14 216.239.46.117 (216.239.46.117) 64.171 ms * *
15 google-public-dns-a.google.com (8.8.8.8) 63.749 ms 63.729 ms
63.680 ms

---
System administrator
Denys Fedoryshchenko
Virtual ISP S.A.L.

gary.steers at sharedband

Nov 29, 2011, 5:11 AM

Post #2 of 3 (694 views)
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RE: DNS 8.8.8.8 was down [In reply to]

We also observed this issue...

# traceroute 8.8.8.8
traceroute to 8.8.8.8 (8.8.8.8), 30 hops max, 40 byte packets
1 r1.ldn.uk.sharedband.net (109.68.192.1) 0.480 ms 0.515 ms 0.523 ms
2 195.66.224.125 (195.66.224.125) 0.451 ms 0.453 ms 0.445 ms
3 64.233.175.27 (64.233.175.27) 0.708 ms 0.702 ms 64.233.175.25 (64.233.175.25) 0.387 ms
4 209.85.253.92 (209.85.253.92) 13.737 ms 209.85.253.90 (209.85.253.90) 1.434 ms 209.85.253.196 (209.85.253.196) 1.010 ms
5 72.14.232.134 (72.14.232.134) 6.553 ms 66.249.95.173 (66.249.95.173) 6.549ms 72.14.232.134 (72.14.232.134) 6.404 ms
6 * * *
7 * * *
8 * * *

Looks like it was Google (72.14.232.134)

Gary Steers
Sharedband NOC/3rd Line Support

-----Original Message-----
From: Denys Fedoryshchenko [mailto:denys [at] visp]
Sent: 29 November 2011 13:06
To: NANOG
Subject: DNS 8.8.8.8 was down

Google DNS was down few minutes, at least for few European locations

Here is sample traceroute:

4 213.242.116.25 (213.242.116.25) 39.692 ms 39.776 ms 39.774 ms
5 ae-7-7.ebr1.Paris1.Level3.net (4.69.143.238) 50.933 ms 50.792 ms
50.793 ms
6 ae-47-47.ebr1.London1.Level3.net (4.69.143.109) 57.353 ms
ae-45-45.ebr1.London1.Level3.net (4.69.143.101) 57.580 ms
ae-48-48.ebr1.London1.Level3.net (4.69.143.113) 57.582 ms
7 ae-57-112.csw1.London1.Level3.net (4.69.153.118) 57.577 ms
ae-58-113.csw1.London1.Level3.net (4.69.153.122) 57.693 ms
ae-57-112.csw1.London1.Level3.net (4.69.153.118) 57.817 ms
8 ae-1-51.edge3.London1.Level3.net (4.69.139.73) 57.654 ms 57.631
ms 57.768 ms
9 unknown.Level3.net (212.113.15.186) 57.958 ms 57.531 ms 57.643
ms
10 209.85.255.78 (209.85.255.78) 57.732 ms 57.598 ms 57.573 ms
11 209.85.253.92 (209.85.253.92) 58.300 ms 209.85.253.196
(209.85.253.196) 57.941 ms 209.85.253.94 (209.85.253.94) 58.002 ms
12 72.14.232.134 (72.14.232.134) 63.726 ms 66.249.95.173
(66.249.95.173) 63.614 ms 72.14.232.134 (72.14.232.134) 63.699 ms

After this hop it was dead, now it is working, but seems still there is
minor problems
14 216.239.46.117 (216.239.46.117) 64.171 ms * *
15 google-public-dns-a.google.com (8.8.8.8) 63.749 ms 63.729 ms
63.680 ms

---
System administrator
Denys Fedoryshchenko
Virtual ISP S.A.L.

froztbyte at froztbyte

Nov 29, 2011, 5:12 AM

Post #3 of 3 (694 views)
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Re: DNS 8.8.8.8 was down [In reply to]

On Tue, 29 Nov 2011 15:06:15 +0200, Denys Fedoryshchenko
<denys [at] visp> wrote:
> Google DNS was down few minutes, at least for few European locations
>
> Here is sample traceroute:
>
> 4 213.242.116.25 (213.242.116.25) 39.692 ms 39.776 ms 39.774 ms
> 5 ae-7-7.ebr1.Paris1.Level3.net (4.69.143.238) 50.933 ms 50.792
> ms 50.793 ms
> 6 ae-47-47.ebr1.London1.Level3.net (4.69.143.109) 57.353 ms
> ae-45-45.ebr1.London1.Level3.net (4.69.143.101) 57.580 ms
> ae-48-48.ebr1.London1.Level3.net (4.69.143.113) 57.582 ms
> 7 ae-57-112.csw1.London1.Level3.net (4.69.153.118) 57.577 ms
> ae-58-113.csw1.London1.Level3.net (4.69.153.122) 57.693 ms
> ae-57-112.csw1.London1.Level3.net (4.69.153.118) 57.817 ms
> 8 ae-1-51.edge3.London1.Level3.net (4.69.139.73) 57.654 ms 57.631
> ms 57.768 ms
> 9 unknown.Level3.net (212.113.15.186) 57.958 ms 57.531 ms 57.643
> ms
> 10 209.85.255.78 (209.85.255.78) 57.732 ms 57.598 ms 57.573 ms
> 11 209.85.253.92 (209.85.253.92) 58.300 ms 209.85.253.196
> (209.85.253.196) 57.941 ms 209.85.253.94 (209.85.253.94) 58.002 ms
> 12 72.14.232.134 (72.14.232.134) 63.726 ms 66.249.95.173
> (66.249.95.173) 63.614 ms 72.14.232.134 (72.14.232.134) 63.699 ms
>
> After this hop it was dead, now it is working, but seems still there
> is minor problems
> 14 216.239.46.117 (216.239.46.117) 64.171 ms * *
> 15 google-public-dns-a.google.com (8.8.8.8) 63.749 ms 63.729 ms
> 63.680 ms

Some people saw it from .za as well, although apparently 8.8.4.4 is
unaffected.

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