http://www.rfc-editor.org/rfc/rfc1317.txt
RFC 1317: Definitions of Managed Objects for RS-232-like Hardware Devices, B. Stewart1992-04-01T23:00:00-00:00This memo defines a portion of the Management Information Base (MIB) for use with network management protocols in TCP/IP based internets. In particular, it defines objects for the management of RS-232-like devices. [STANDARDS-TRACK]