A look at the throughput graph clearly showed a drop to almost zero around 12:20 UTC+2:
A temporary outage on the AMS-IX internet backbone caused an extended outage of internet traffic across Netherlands.
Dear Tech-L subscribers,
Today Wednesday 13/05/2015 at 12:20 UTC+2 an installation engineer working on the PE under maintenance in EQUINIX AM3, while testing one of the newly installed 100GE modules, accidentally placed a loop on the ISP peering VLAN.
DETAILS:
The loop caused a high CPU on all backbone and customer modules resulting in many BGP sessions dropping.
The incident lasted 10 minutes.
BGP sessions are restoring.
The situation has normalized again.
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