[outages] TWTC IPv6

[Jon Lewis]

On Fri, 28 Oct 2011, Ryan Rawdon wrote:

>>> 2001:4870::/32 re-appeared at 5:27AM and no other issues appeared to persist.
>>
>> I'm a TWT customer, and still not seeing the /32, but am seeing lots of more specific /48's from it.
>
> I don't think I actually checked which prefix we were seeing when connectivity was restored at the time I posted my follow-up.  Right now we are seeing two prefixes from TWTC:
> 2001:4870::/31
> 2620:81:8000::/48
>
> (and also 2001:4870:E00B::/48 from a path transiting 4323)
>
> I don't know for sure whether they were advertising the /31 or /32 before the event this morning but regardless 2001:4870::/32 wasn't reachable in the DFZ (as itself or as a superprefix).  bgp.he.net still shows them advertising a /32, so I suspect they only changed to a /31 very recently - potentially during or after this outage.

I hadn't looked for less specific, since the /32 was specifically 
mentioned.  I am seeing the /31.


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  Jon Lewis, MCP :)           |  I route
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