Youtube CDN unreachable over IPv6

Christopher Schmidt crschmidt at
Fri Nov 6 18:17:48 UTC 2015

Hi all,

Thanks for the reports.

To the best of our knowledge, this issue has been resolved at this
time. If you are still having problems connecting to YouTube CDN
nodes, please feel free to let me know, and I will investigate

On Fri, Nov 6, 2015 at 12:48 PM, Blair Trosper <blair.trosper at> wrote:
> This was happening two weeks ago in the Bay Area as well.  It happens quite
> a lot, for my old threads.  I gave up trying to get it
> noticed.


I'm not aware of a similar issue with IPv6 being unavailable while
IPv4 is available recently.

I did not see any threads with information in them with the name
"Blair" attached in either the October archive
( or
the September archive

If this issue is ongoing, I would be happy to look into this;
otherwise, I don't believe there is any action I can take to assist at
this time.

All the best.

>> * seth.mos at (Seth Mos) [Fri 06 Nov 2015, 09:00 CET]:
>> >Dear Google,
>> >
>> >It appears that one of the Youtube CDN's (in Europe, NL) is not
>> >reachable over IPv6 from AS 20844. Can someone get back to us on this,
>> >the company can't access any of the videos currently, although the
>> >mainpage loads fine (over IPv6).
>> >
>> >Kind regards,
>> >
>> >Seth
>> >
>> >telnet 443
>> >Trying 2a00:1450:401c:4::b...
>> >telnet: connect to address 2a00:1450:401c:4::b: Connection timed out
>> >Trying
>> >Connected to (
>> >Escape character is '^]'.
>> >Connection closed by foreign host.
>> >
>> >telnet 443
>> >Trying 2a00:1450:4013:c01::5d...
>> >Connected to (2a00:1450:4013:c01::5d).
>> >Escape character is '^]'.
>> >Connection closed by foreign host.

Christopher Schmidt
YouTube Quality of Experience

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