[outages] Comcast DNS broken?

[Aubrey Wells]

Its working fine here in Atlanta, but 75.75.7[56].7[56] are anycasted so
the cluster you are hitting from SFO is almost certainly not the same
cluster I am hitting from ATL.


---------------------
Aubrey Wells
Manager, Network Operations
Digium Cloud Services
Main: 888.305.3850
Support: 877.344.4861 or http://www.digium.com/en/support
<http://www.digium.com/en/support?elq=65516445a5964d3597e25eaf566bc2cf&elqCampaignId=>

On Mon, Jun 1, 2015 at 11:06 PM, Sajal Kayan via Outages <
outages at outages.org> wrote:

> Hi,
>
> Comcast DNS servers (75.75.75.75, 75.75.76.76) seem to be down. Web pages
> were suck at dns resolution phase, switching to Google DNS solved the
> problem immediately.
>
> Tested from San Francisco.
>
> sajal at sajal-lappy:~$ mtr --report 75.75.75.75
> Start: Mon Jun  1 20:03:02 2015
> HOST: sajal-lappy                 Loss%   Snt   Last   Avg  Best  Wrst
> StDev
>   1.|-- 10.0.1.1                   0.0%    10    1.2   3.1   1.0   5.9
> 1.2
>   2.|-- 50.174.142.1               0.0%    10   15.9  20.7  14.6  49.7
>  10.4
>   3.|-- te-0-7-0-5-sur03.sffolsom  0.0%    10   16.9  24.1  16.4  54.6
>  11.6
>   4.|-- be-209-ar01.santaclara.ca  0.0%    10   18.2  33.4  17.0 146.1
>  39.9
>   5.|-- he-0-14-0-0-ar01.sfsutro.  0.0%    10   22.4  26.9  20.0  42.9
> 6.8
>   6.|-- te-9-4-ur01-d.sanjose.ca.  0.0%    10   22.9  23.1  20.6  28.4
> 2.0
>   7.|-- te-8-2-ur01-d.sanjose.ca.  0.0%    10   21.5  23.4  20.6  29.2
> 3.1
>   8.|-- cdns01.comcast.net         0.0%    10   32.2  47.3  20.5  89.7
>  29.0
> sajal at sajal-lappy:~$ dig google.com @75.75.75.75
>
> ; <<>> DiG 9.9.5-3ubuntu0.2-Ubuntu <<>> google.com @75.75.75.75
> ;; global options: +cmd
> ;; connection timed out; no servers could be reached
> sajal at sajal-lappy:~$
>
>
> https://pulse.turbobytes.com/results/556d1b32ecbe4023eb0000ab/ - Using
> our tool we see timeout from Seattle and Mountain View. Is this a national
> level outage or something?
>
> -Sajal
>
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