Presumably you don’t need to handle traffic at line speed, you just need to process it faster than userspace applications can produce and consume it. What I do

Presumably you don’t need to handle traffic at line speed, you just need to process it faster than userspace applications can produce and consume it. What I don’t really understand is why iptables and tv is so slow. If the kernel can’t route packets at line speed, how are userspace applications saturating it?