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 localhost 12345 1.3.6.1.6.3.1.1.5.2

$ snmpinform -v2c -c public localhost 12345 1.3.6.1.6.3.1.1.5.2

$ snmptrap -v2c -c public localhost 12345 1.3.6.1.6.3.1.1.5.2

import asyncio

from pysnmp.hlapi.asyncio import *


async def sendone(snmpEngine, hostname, notifyType):
    (errorIndication, errorStatus, errorIndex, varBinds) = 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"))
        ),
    )

    if errorIndication:
        print(f"{notifyType}: {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]))


snmpEngine = SnmpEngine()


async def main():
    await asyncio.gather(
        sendone(snmpEngine, "localhost", "trap"),
        sendone(snmpEngine, "localhost", "inform"),
    )


asyncio.run(main())

Download script.

See also: library reference.