http://www.rfc-editor.org/rfc/rfc1441.txt
RFC 1441: Introduction to version 2 of the Internet-standard Network Management Framework, J. Case, K. McCloghrie, M. Rose, S. Waldbusser1993-04-01T23:00:00-00:00The purpose of this document is to provide an overview of version 2 of the Internet-standard Network Management Framework, termed the SNMP version 2 framework (SNMPv2). [STANDARDS-TRACK]