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SNMP Service

The SNMP service monitors the performance and health of the SNMP agent on a device. SNMP is a widely used network management protocol that is present in a majority of network infrastructures (routers, switches, firewalls, and so on) as well as in different types of computing platforms. 

Service Type

SNMP

Instances on a Device

1

Device Class

Server - Generic, Workstation - Generic, Other, Printer, Scanner/Camera, Switch/Router, and Workstation - Windows

Monitored By

Windows Probe

Scan Interval

15 minutes

The table SNMPV2-MIB describes the SNMP objects that are queried by the probe.

SNMPV2-MIB

Object Descriptors

Numerical OID

snmpInBadVersions

1.3.6.1.2.1.11.3

snmpInBadCommunityNames

1.3.6.1.2.1.11.4

snmpInBadCommunityUses

1.3.6.1.2.1.11.5

snmpInASNParseErrs

1.3.6.1.2.1.11.6

snmpInTooBigs

1.3.6.1.2.1.11.8

snmpInNoSuchNames

1.3.6.1.2.1.11.9

snmpInBadValues

1.3.6.1.2.1.11.10

snmpInGenErrors

1.3.6.1.2.1.11.12

snmpOutTooBigs

1.3.6.1.2.1.11.20

OID/Calculation

MSP N-central services use Reverse Polish Notation (RPN) for all calculation formulae.

Metric Name

OID/Calculation

Description

Number of SNMP messages with version error

^snmpInBadVersions

The number of SNMP queries received by the SNMP agent on the target device that were for an unsupported version of SNMP.

Number of wrong community string messages

^snmpInBadCommunityNames

The number of SNMP queries received by the SNMP agent on the device that used an incorrect SNMP community string.

Number of messages with an invalid user

^snmpInBadCommunityUses

The number of SNMP messages received by the SNMP agent on the device which requested an SNMP operation which was not allowed by the SNMP community string in the message.

Number of SNMP messages unparsed

^snmpInASNParseErrs

The number of SNMP messages received by the SNMP agent on the device with syntax errors.

Number of messages with invalid status bits

^snmpInTooBig+^snmpNoSuchName+^snmpBadValue+^snmpGenError+^snmpOutTooBig

The number of SNMP messages received by or transmitted from the SNMP agent on the target device, which indicates an error status.