[outages] Comcast IPv6 outages

Dovid Bender dovid at telecurve.com
Wed Apr 4 13:37:57 EDT 2018


We had a lot of connectivity issues with clients on Comcast (v4) at around
11 AM eastern for a few minutes.


On Wed, Apr 4, 2018 at 1:22 PM, Dave Pascoe via Outages <outages at outages.org
> wrote:

> This went beyond IPv6. IPv4 routing was dying at Comcast in NYC to Linode
> and Choopa/Vultr, among possibly other destination networks.
>
> This happened twice, once earlier this morning and once just recently.
> Cleared up in less than 10 minutes.
>
> Sorry for the lack of detail...not near laptop right now.
>
> Dave
>
> On Wed, Apr 4, 2018 at 1:04 PM, Michael via Outages <outages at outages.org>
> wrote:
>
>> Had to turn off IPv6 on my home router.  Connections to Ravellosystems
>> and Atlassian were dropping for me intermittently.
>>
>>
>> ------ Original Message ------
>> From: "John Neiberger via Outages" <outages at outages.org>
>> To: "Chuck Anderson" <cra at wpi.edu>; outages at outages.org
>> Sent: 4/4/2018 11:57:54 AM
>> Subject: Re: [outages] Comcast IPv6 outages
>>
>> What IPv6 destination are you tracing to? I'll take a look.
>>
>> On Wed, Apr 4, 2018 at 10:51 AM, Chuck Anderson via Outages <
>> outages at outages.org> wrote:
>>
>>> Comcast in New England/Massachusetts has been experiencing intermittent
>>> IPv6 packet loss and outages for the past hour or so on and off.
>>>
>>> Here is a traceroute when it isn't going through:
>>>
>>>                                        Packets               Pings
>>>  Host                                Loss%   Snt   Last   Avg  Best
>>> Wrst StDev
>>>  1. 2601:19c:4880:5121::1             0.0%    53    2.0   1.9   1.3
>>>  4.4   0.4
>>>  2. 2001:558:4023:147::1              1.9%    53   11.8  22.0  10.4
>>> 131.7  21.5
>>>  3. 2001:558:202:410::1               0.0%    53   13.8  15.5  10.0
>>> 70.9  11.6
>>>  4. 2001:558:200:364::1               0.0%    53   68.7  18.6  10.4
>>> 190.7  25.9
>>>  5. 2001:558:200:4020::1             11.5%    53   49.1  21.4  12.5
>>> 170.3  23.8
>>>  6. be-7015-cr02.newyork.ny.ibone.co 26.4%    53  100.8  33.9  18.5
>>> 116.8  26.7
>>>  7. ???
>>>
>>> The last working hop above resolves to: 2001:558:0:f6b6::1.  It has been
>>> down for the last 5-10 minutes now.
>>> _______________________________________________
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>>>
>>
>>
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>
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