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Companies like Arbor Networks have products like Peakflow[1] that are supposed to mitigate DDoS attacks by filtering the traffic. How are they not using tools such as those?

[1] http://www.arbornetworks.com/en/delivering-in-cloud-ddos-pro...

Disclaimer: I will be interning at Arbor this summer.

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Most of them can't handle really large attacks. Wikileaks was supposedly getting hit with more than 10Gbps, which is right around the maximum Peakflow can handle.

When an attack this big targets a small business, they usually just null route the servers, essentially sending all data into a blackhole. The downside is that their website will be inaccessible by legitimate users. The upside is that they don't have to pay for the used bandwidth, which is pricey at 10Gbps.

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