Hi Tim, Sid,

So can we clarify ... if Site A is "opt out" (i.e. old and busted behaviour, IX ASN inserted) and site B is "opt in" (new hotness behaviour, IX ASN not inserted):

• Would Site A see the IX ASN inserted in routes announced to the route servers by Site B?
• Would Site B see the IX ASN inserted in routes announced to the route servers by Site A?

That is, is the ASN inserted into a route's AS path based on where the route comes from, or where it's announced to? Is there more than one setting?

-- don