[outages] Twelve99 packet loss around London

Tom Storey tom at snnap.net
Mon Aug 12 09:54:04 EDT 2024


I am hearing that GlobalSwitch just had a building-scale outage as a result
of some maintenance gone wrong.

On Mon, 12 Aug 2024 at 14:38, Phil Lavin via Outages <outages at outages.org>
wrote:

> Seeing significant loss and latency to 8.8.8.8 over Twelve99. Looks to be
> around London/Dublin:
>
>                                    My traceroute  [v0.95]
> VONMVPCVXYVFD (172.20.0.76) -> 8.8.8.8 (8.8.8.8)
>  2024-08-12T14:32:13+0100
> Keys:  Help   Display mode   Restart statistics   Order of fields   quit
>                                                    Packets
>  Pings
>  Host                                            Loss%   Snt   Last   Avg
> Best  Wrst StDev
>  1. 172.20.0.1                                    0.0%    79    1.8   1.2
>  0.6   3.7   0.5
>  2. lo0-0.bng8.thn-lon.zen.net.uk                 0.0%    79    6.8
>  7.3   5.1  30.1   3.3
>  3. 51-148-244-20.dsl.zen.co.uk                   0.0%    79    5.9
>  6.5   5.2   9.8   1.0
>  4. ldn-b3-link.ip.twelve99.net                   1.3%    78    5.6
>  6.7   5.3  14.1   1.3
>  5. ldn-bb2-link.ip.twelve99.net                  1.3%    78    7.1
>  7.0   5.4  17.3   1.4
>  6. dln-b3-link.ip.twelve99.net                  42.3%    78   15.6
> 15.9  14.9  18.2   0.7
>  7. 72.14.243.178                                55.8%    78   32.4  38.4
> 16.6  54.5  11.4
>  8. 108.170.227.21                               17.9%    78   32.3  34.7
> 16.7  54.4  11.2
>  9. 209.85.244.231                               32.5%    78   28.3  35.1
> 18.6  53.6  10.1
> 10. dns.google                                   25.6%    78   38.2
> 34.0  16.2  54.4  10.3
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