# 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.