I have reviewed this document as part of the security directorate'songoing effort to review all IETF documents being processed by the IESG. These comments were written primarily for the benefit of thesecurity area directors. Document editors and WG chairs should treat these comments just like any other last call comments. This I-D deprecates the BGBP AS_SETs and AS_CONFED_SETs path attributes and I see no security issues with this document and the Security Considerations section seems appropriate. My only editorial nit is to spell out the acronym RPKI in the Security Considerations section and to perhaps change the short running title to "Deprecation of AS_SET and AS_CONFED_SET". /js -- Juergen Schoenwaelder Jacobs University Bremen gGmbH Phone: +49 421 200 3587 Campus Ring 1, 28759 Bremen, Germany Fax: +49 421 200 3103 < http://www.jacobs-university.de/ >