Correction from Sue Moon's Twitter:

> "Virtual router smashes speed records" corrections: not virtual, just pc-based software; not gigabytes, but Gbps; our perf is w/ 64B packets

(source: http://twitter.com/sbmoon/status/21921061318)

The article's author probably mistook "gigabit" as "gigabytes". Nevertheless, 40Gbps is impressive.