How many AS hops does CPS introduce? Do I need to pad AS-PATH announcements to my commodity providers?
Internet2 introduces single AS11537 between the peers and its connectors. In areas where there is a regional network router used to connect to Internet2, but campuses have their own ISP connections, the AS of the regional network also needs to be considered. In general, adding 3 or 4 AS-PATH prepends to announcements to campus attached commodity providers will assure that inbound traffic prefers the peering service over other links.
