(I used to work at fly on networking)

Fly has a lot of interesting networking issues but I don't know that like, the actual routing of packets is the big one? And even in the places where there is bottlenecks in the overlay mesh I'm not sure that custom FPGAs are going to be the solution for now.

But also this blog post isn't about routing packets, it's about state tracking so we know _where_ to even send our packets in the first place.