This module (Corero TDS-ZPB-LR) does the optical by-pass. Allows to circumvent your Corero mitigation unit.

This is the Corero TDS-NTD-10G defense module that does the magic. It’s based on a 36-core Tilera chip w/ 32G RAM and an Intel S3500 240GB SSD. This unit will sample and drop the DDOS mitigation configuration programmed by the Corero x86 Management server.