[Dagger2]

What's the par time for L3 protocol migrations on the Internet at its current size?

Bear in mind we've never done a project of this complexity and scale before. I'm sure we all wish it had been faster, but how can you possibly evaluate whether this is a failure or not without knowing how long it normally takes?

[hdgvhicv]

The vast majority of the current size of the Internet, basically 100%, was built after IPv6 was ratified and indeed became a normal part of equipment.

[Dagger2]

Let's assume that's true... so what? That doesn't tell us anything about how long migrations like this normally take.