Nothing. It’s relatively new and is getting more adoption all the time. There are like 70,000 ASNs out there, so a lot of orgs need to implement. But you’re

Nothing. It’s relatively new and is getting more adoption all the time. There are like 70,000 ASNs out there, so a lot of orgs need to implement. But you’re right, if all the Tier 1’s do it we’ll be in a good place. The “problem” with it is it doesn’t solve the path validation problem, so while it helps it doesn’t fix BGP completely.