http://www.rfc-editor.org/rfc/rfc1482.txt
RFC 1482: Aggregation Support in the NSFNET Policy-Based Routing Database, M. Knopper, S. Richardson1993-06-01T23:00:00-00:00This document describes plans for support of route aggregation, as specified in the descriptions of Classless Inter-Domain Routing (CIDR) [1] and the BGP-4 protocol [2], by the NSFNET Backbone Network Service. This memo provides information for the Internet community. It does not specify an Internet standard.