Carrier-grade DDoS Attack mitigation appliance

[Mohamed Kamal <mkamal () noor net>]

Have anyone tried any DDoS attack mitigation appliance rather than Arbor 
PeakFlow TMS? I need it to be carrier-grade in terms of capacity and 
redundancy, and as far as I know, Arbor is the only product in the 
market which offers a "clean pipe" volume of traffic, so if the DDoS 
attack volume is, for example, 1Tbps, they will grant you for example 
50Gbps of clean traffic.

Anyway, I'm open to other suggestions, and open-source products that can 
do the same purpose, we have network development team that can work on this.

Thanks.

--
Mohamed Kamal
Core Network Sr. Engineer