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# Advanced Notification Originator

## Multiple concurrent notifications

Send multiple SNMP notifications at once using the following options:

- SNMPv2c

- with community name ‘public’

- over IPv4/UDP

- send INFORM notification

- to multiple Managers

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

Functionally similar to:

$ snmptrap -v2c -c public demo.pysnmp.com 12345 1.3.6.1.6.3.1.1.5.2
$ snmpinform -v2c -c public demo.pysnmp.com 12345 1.3.6.1.6.3.1.1.5.2

    import asyncio
    from pysnmp.hlapi.v1arch.asyncio import *

    async def sendone(snmpDispatcher, hostname, notifyType):
        iterator = await send_notification(
            snmpDispatcher,
            CommunityData("public"),
            await UdpTransportTarget.create((hostname, 162)),
            notifyType,
            NotificationType(ObjectIdentity("1.3.6.1.6.3.1.1.5.2"))
            .load_mibs("SNMPv2-MIB")
            .add_varbinds(
                ("1.3.6.1.6.3.1.1.4.3.0", "1.3.6.1.4.1.20408.4.1.1.2"),
                ("1.3.6.1.2.1.1.1.0", OctetString("my system")),
            ),
        )

        errorIndication, errorStatus, errorIndex, varBinds = iterator

        if errorIndication:
            print(errorIndication)

        elif errorStatus:
            print(
                "{}: at {}".format(
                    errorStatus.prettyPrint(),
                    errorIndex and varBinds[int(errorIndex) - 1][0] or "?",
                )
            )

        else:
            for varBind in varBinds:
                print(" = ".join([x.prettyPrint() for x in varBind]))

    async def main():
        with SnmpDispatcher() as snmpDispatcher:
            await asyncio.gather(
                sendone(snmpDispatcher, "demo.pysnmp.com", "trap"),
                sendone(snmpDispatcher, "demo.pysnmp.com", "inform"),
            )

    asyncio.run(main())

`Download` script.

See also: library reference.