It is a fully integrated core service built on the Akamai edge platform when you are buying and implementing it, and then a tiny little no-nothing "gosh are people still using that?!" in the corner when it goes down.

You also might want to take a look at who Geoff is before claiming that he is misunderstanding how a routing product works. https://www.internethalloffame.org/inductees/geoff-huston