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 *

iterator = 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'
        }
    )
)

errorIndication, errorStatus, errorIndex, varBinds = next(iterator)

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 *

iterator = 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')
    )
)

errorIndication, errorStatus, errorIndex, varBinds = next(iterator)

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.