http://www.rfc-editor.org/rfc/rfc2427.txt
RFC 2427: Multiprotocol Interconnect over Frame Relay, C. Brown, A. Malis1998-09-01T23:00:00-00:00This memo describes an encapsulation method for carrying network interconnect traffic over a Frame Relay backbone. It covers aspects of both Bridging and Routing. [STANDARDS-TRACK]