# 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 INFORM notification

- to multiple Managers

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

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

Here we tag each SNMP-COMMUNITY-MIB::snmpCommunityTable row with the same tag as SNMP-TARGET-MIB::snmpTargetAddrTable row what leads to excessive tables information.

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

    import asyncio
    from pysnmp.hlapi.asyncio import *

    async def sendone(snmpEngine, hostname, notifyType):
        trap_result = await sendNotification(
            snmpEngine,
            CommunityData("public", tag=hostname),
            UdpTransportTarget((hostname, 162), tagList=hostname),
            ContextData(),
            notifyType,
            NotificationType(ObjectIdentity("1.3.6.1.6.3.1.1.6.1.0")).addVarBinds(
                ("1.3.6.1.2.1.1.1.0", OctetString("my system"))
            ),
        )

        (errorIndication, errorStatus, errorIndex, varBinds) = await trap_result
        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():
        snmpEngine = SnmpEngine()
        await asyncio.gather(
            sendone(snmpEngine, 'demo.pysnmp.com', 'trap'),
            sendone(snmpEngine, 'demo.pysnmp.com', 'inform'),
        )

    asyncio.run(main())

`Download` script.

See also: library reference.