> Maybe. However, l2 is for telco.
> l2 exchange ponints are a labor suck and are fragile.
> The right path is l1, though, then, there is less reason to have
> exchange points.
> It will be more obvious as the peering speed between two ISPs exceeds
> that of a single physical interface.

glad to have words of practical wisedom from your experience as a large

My humble wisdom is not to have experience with telco style (thus
large) ISPs with impractical (that is, extremely costly)


            Masataka Ohta