GET command#

pysnmp.hlapi.getCmd(snmpEngine: SnmpEngine, authData: pysnmp.hlapi.auth.CommunityData | pysnmp.hlapi.auth.UsmUserData, transportTarget: AbstractTransportTarget, contextData: ContextData, *varBinds, **options) → tuple[pysnmp.proto.errind.ErrorIndication, pysnmp.proto.rfc1902.Integer32 | int, pysnmp.proto.rfc1902.Integer32 | int, tuple[pysnmp.smi.rfc1902.ObjectType]]#

Performs one SNMP GET query.

Parameters:

  • snmpEngine (SnmpEngine) – Class instance representing SNMP engine.

  • authData (CommunityData or UsmUserData) – Class instance representing SNMP credentials.

  • transportTarget (UdpTransportTarget or Udp6TransportTarget) – Class instance representing transport type along with SNMP peer address.

  • contextData (ContextData) – Class instance representing SNMP ContextEngineId and ContextName values.

  • *varBinds (ObjectType) – One or more class instances representing MIB variables to place into SNMP request.

Other Parameters:

**options –

Request options:

  • lookupMib - load MIB and resolve response MIB variables at the cost of slightly reduced performance. Default is True.

Yields:

  • errorIndication (str) – True value indicates SNMP engine error.

  • errorStatus (str) – True value indicates SNMP PDU error.

  • errorIndex (int) – Non-zero value refers to varBinds[errorIndex-1]

  • varBinds (tuple) – A sequence of ObjectType class instances representing MIB variables returned in SNMP response.

Raises:

PySnmpError – Or its derivative indicating that an error occurred while performing SNMP operation.

Examples

>>> from pysnmp.hlapi import *
>>> g = getCmd(SnmpEngine(),
...            CommunityData('public'),
...            UdpTransportTarget(('demo.pysnmp.com', 161)),
...            ContextData(),
...            ObjectType(ObjectIdentity('SNMPv2-MIB', 'sysDescr', 0)))
>>> g
(None, 0, 0, [ObjectType(ObjectIdentity(ObjectName('1.3.6.1.2.1.1.1.0')), DisplayString('SunOS zeus.pysnmp.com 4.1.3_U1 1 sun4m'))])
>>>