Some of the route objects in the RADB registry contain advisory lists which specify non-existant peers. (Many of these entries became incorrect when the NSFNET routers were shut down at the end of April.) We have produced a list of these route objects, which you can obtain via the web page: http://www.ra.net/routing.arbiter/RA/RADB.tools.docs/problems.html or, for those that prefer just ftp: ftp.ra.net:routing.arbiter/radb/problems/*.badav ftp.ra.net:routing.arbiter/radb/problems/*.badav.gz We would prefer not to modify your data. However, these entries need to be revised. On June 23, we will modify the advisory lines of any route objects in the RADB with references to non-existant peers. (The references to the peers will be removed and the preferences renumbered.) Please contact us at db-admin@ra.net if you have any questions about this. -Brian