I am looking for a firewall solution that can provide 5-Gbps of IPSec 3DES traffic processing.
The highest of the ASA product line (5580) can handle a maximum of 1-Gbps. I think the reason for this is that, in Cisco's view, the ASA is an enterprise-level appliance. That is also probably why it only supports AC power.
What product line should service providers look for to provide at least 5-Gbps of 3DES traffic and DC power support?