Evaluating NOTIFICATION-TYPE

SNMPv2c TRAP via NOTIFICATION-TYPE

Initialize TRAP message contents from variables specified in NOTIFICATION-TYPE SMI macro.

  • SNMPv2c
  • with community name ‘public’
  • over IPv4/UDP
  • send TRAP notification
  • with TRAP ID ‘linkUp’ specified as a MIB symbol
  • include values for managed objects implicitly added to notification (via NOTIFICATION-TYPE->OBJECTS)

Functionally similar to:

$ snmptrap -v2c -c public demo.snmplabs.com 0 1.3.6.1.6.3.1.1.5.1 1.3.6.1.2.1.2.2.1.1.123 i 123 1.3.6.1.2.1.2.2.1.7.123 i 1 1.3.6.1.2.1.2.2.1.8.123 i 1
from pysnmp.hlapi import *

errorIndication, errorStatus, errorIndex, varBinds = next(
    sendNotification(
        SnmpEngine(),
        CommunityData('public'),
        UdpTransportTarget(('demo.snmplabs.com', 162)),
        ContextData(),
        'trap',
        NotificationType(
            ObjectIdentity('IF-MIB', 'linkUp'),
                           instanceIndex=(123,),
                           objects={('IF-MIB', 'ifIndex'): 123,
                                    ('IF-MIB', 'ifAdminStatus'): 'up',
                                    ('IF-MIB', 'ifOperStatus'): 'up'}
        )
    )
)

if errorIndication:
    print(errorIndication)

Download script.

Sending additional var-binds

Send SNMP notification using the following options:

  • SNMPv2c
  • with community name ‘public’
  • over IPv4/UDP
  • send INFORM notification
  • with TRAP ID ‘coldStart’ specified as a MIB symbol
  • include managed object information specified as a MIB symbol

Functionally similar to:

$ snmpinform -v2c -c public demo.snmplabs.com 12345 1.3.6.1.6.3.1.1.5.1 1.3.6.1.2.1.1.1.0 s “my system”
from pysnmp.hlapi import *

errorIndication, errorStatus, errorIndex, varBinds = next(
    sendNotification(
        SnmpEngine(),
        CommunityData('public'),
        UdpTransportTarget(('demo.snmplabs.com', 162)),
        ContextData(),
        'inform',
        NotificationType(
            ObjectIdentity('SNMPv2-MIB', 'coldStart')
        ).addVarBinds(
            ObjectType(ObjectIdentity('SNMPv2-MIB', 'sysName', 0), 'my system')
        )
    )
)

if errorIndication:
    print(errorIndication)
elif errorStatus:
    print('%s at %s' % (errorStatus.prettyPrint(),
                        errorIndex and varBinds[int(errorIndex) - 1][0] or '?'))
else:
    for varBind in varBinds:
        print(' = '.join([x.prettyPrint() for x in varBind]))

Download script.

See also: library reference.