http://www.rfc-editor.org/rfc/rfc1604.txt
RFC 1604: Definitions of Managed Objects for Frame Relay Service, T. Brown1994-03-01T23:00:00-00:00This memo defines an extension to the Management Information Base (MIB) for use with network management protocols in TCP/IP-based internets. In particular, it defines objects for managing the Frame Relay Service. [STANDARDS-TRACK]