Editing Simple Network Management Protocol (section)

{{Short description|Computer network management and monitoring protocol}}
{{Use American English|date=September 2020}}

{{Infobox networking protocol
| name          = SNMPv3 STD0062
| rfcs         = 3411–3418
| ports         = 161, 162 (Trap)
| osilayer      = [[Application layer|Application]]
}}
{{Infobox networking protocol
| name          = Secure SNMP
| rfcs         = 6353
| ports         = 10161, 10162 (Trap)
| osilayer      = [[Application layer|Application]]
}}
{{IPstack}}

'''Simple Network Management Protocol''' ('''SNMP''') is an [[Internet Standard]] protocol for collecting and organizing information about managed devices on [[Internet Protocol|IP]] networks and for modifying that information to change device behavior. Devices that typically support SNMP include [[cable modem]]s, [[Router (computing)|routers]], [[network switch]]es, servers, workstations, printers, and more.<ref name="ESNMP">{{cite book |author=Douglas R. Mauro & Kevin J. Schmidt. |year=2001 |title=Essential SNMP |edition=1st |location=Sebastopol, CA |publisher=O'Reilly & Associates}}</ref>

SNMP is widely used in [[network management]] for [[network monitoring]].  SNMP exposes management data in the form of variables on the managed systems organized in a [[management information base]] (MIB), which describes the system status and configuration. These variables can then be remotely queried (and, in some circumstances, manipulated) by managing applications.

Three significant versions of SNMP have been developed and deployed. SNMPv1 is the original version of the protocol. More recent versions, SNMPv2c and SNMPv3, feature improvements in performance, flexibility and security.

SNMP is a component of the [[Internet Protocol Suite]] as defined by the [[Internet Engineering Task Force]] (IETF). It consists of a set of [[Technical standard|standards]] for network management, including an [[application layer]] protocol, a database [[logical schema|schema]], and a set of [[data object]]s.<ref name="RFC 3411">{{Cite IETF |rfc=3411 |title=An Architecture for Describing Simple Network Management Protocol (SNMP) Management Frameworks}}</ref>