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# Advanced Notification Originator

## Multiple concurrent notifications

Send multiple SNMP notifications at once using the following options:

- SNMPv2c and SNMPv3

- with community name ‘public’

- over IPv4/UDP

- send TRAP notification

- to multiple Managers

- with TRAP ID ‘coldStart’ specified as a MIB symbol

- include managed object information specified as var-bind objects pair

Functionally similar to:

$ snmptrap -v1 -c public demo.pysnmp.com 1.3.6.1.4.1.20408.4.1.1.2 demo.pysnmp.com 6 432 12345 1.3.6.1.2.1.1.1.0 s “my system”
$ snmptrap -v2c -c public demo.pysnmp.com 123 1.3.6.1.6.3.1.1.5.1

    import asyncio
    from pysnmp.hlapi.v3arch.asyncio import *

    async def run():
        # List of targets in the following format:
        # ( ( authData, transportTarget ), ... )
        TARGETS = (
            # 1-st target (SNMPv1 over IPv4/UDP)
            (
                CommunityData("public", mpModel=0),
                await UdpTransportTarget.create(("demo.pysnmp.com", 162)),
                ContextData(),
            ),
            # 2-nd target (SNMPv2c over IPv4/UDP)
            (
                CommunityData("public"),
                await UdpTransportTarget.create(("demo.pysnmp.com", 162)),
                ContextData(),
            ),
        )

        snmpEngine = SnmpEngine()

        for authData, transportTarget, contextData in TARGETS:
            await send_notification(
                snmpEngine,
                authData,
                transportTarget,
                contextData,
                "trap",  # NotifyType
                NotificationType(ObjectIdentity("SNMPv2-MIB", "coldStart")).add_varbinds(
                    ("1.3.6.1.2.1.1.1.0", "my name")
                ),
            )

        snmpEngine.transport_dispatcher.run_dispatcher()

    asyncio.run(run())

`Download` script.

## Multiple concurrent notifications

Send multiple SNMP notifications at once using the following options:

- SNMPv2c and SNMPv3

- with community name ‘public’

- over IPv4/UDP

- send INFORM notification

- to multiple Managers

- with TRAP ID ‘coldStart’ specified as a MIB symbol

- include managed object information specified as var-bind objects pair

Functionally similar to:

$ snmpinform -v2c -c public demo.pysnmp.com 123 1.3.6.1.6.3.1.1.5.1
$ snmpinform -v3 -u usr-md5-des -l authPriv -A authkey1 -X privkey1 demo.pysnmp.com 123 1.3.6.1.6.3.1.1.5.1

    import asyncio
    from pysnmp.hlapi.v3arch.asyncio import *

    async def run():
        # List of targets in the following format:
        # ( ( authData, transportTarget ), ... )
        TARGETS = (
            # 1-st target (SNMPv2c over IPv4/UDP)
            (
                CommunityData("public"),
                await UdpTransportTarget.create(("demo.pysnmp.com", 162)),
                ContextData(),
            ),
            # 2-nd target (SNMPv3 over IPv4/UDP)
            (
                UsmUserData("usr-md5-des", "authkey1", "privkey1"),
                await UdpTransportTarget.create(("demo.pysnmp.com", 162)),
                ContextData(),
            ),
        )

        snmpEngine = SnmpEngine()

        for authData, transportTarget, contextData in TARGETS:
            (
                errorIndication,
                errorStatus,
                errorIndex,
                varBindTable,
            ) = await send_notification(
                snmpEngine,
                authData,
                transportTarget,
                contextData,
                "inform",  # NotifyType
                NotificationType(ObjectIdentity("SNMPv2-MIB", "coldStart")).add_varbinds(
                    ("1.3.6.1.2.1.1.1.0", "my name")
                ),
            )

            if errorIndication:
                print("Notification not sent: %s" % errorIndication)
            elif errorStatus:
                print(
                    "Notification Receiver returned error: %s @%s"
                    % (errorStatus, errorIndex)
                )
            else:
                print("Notification delivered:")
                for name, val in varBindTable:
                    print(f"{name.prettyPrint()} = {val.prettyPrint()}")

        snmpEngine.transport_dispatcher.run_dispatcher()

    asyncio.run(run())

`Download` script.

See also: library reference.