Black Holes
Concept
- Compare the IP address space known to a peer with what is seen by the entire RIS
Practice
- Remove more specific routes from Peer’s BGP table dump and from the RIS
- Make a comparison between RIS and Peer
- The IP address space for which the peer doesn’t have any routes are “Black Holes”
Dan Ardelean has been using RRC00’s APNIC peer because it has the highest prefix count of any RIS peer