User-Based Security Model (USM) for Version 3 of the Simple Network Management Protocol (SNMPv3). U. Blumenthal, B. Wijnen. April 1999. http://www.faqs.org/rfcs/rfc2574.html
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Message Processing and Dispatching for the Simple Network Management Protocol (SNMP). J. Case, D. Harrington, R. Presuhn, B. Wijnen. April 1999. http://www.faqs.org/rfcs/rfc2572.html
Protocol Operations for Version 2 of the Simple Network Management Protocol (SNMPv2). J. Case, K. McCloghrie, M. Rose, S. Waldbusser. April 1993. http://www.faqs.org/rfcs/rfc1448.html
Structure of Management Information for Version 2 of the Simple Network Management Protocol (SNMPv2). J. Case, K. McCloghrie, M. Rose, S. Waldbusser. April 1993. http://www.faqs.org/rfcs/rfc1442.html
Administrative Model for Version 2 of the Simple Network Management Protocol (SNMPv2). J. Galvin, K. McCloghrie. April 1993. http://www.faqs.org/rfcs/rfc1445.html