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 TRAP and 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 12345
$ snmpinform -v2c -c public 12345
from twisted.internet.defer import DeferredList
from twisted.internet.task import react
from pysnmp.hlapi.twisted import *

def success(args, hostname):
    (errorStatus, errorIndex, varBinds) = args

    if errorStatus:
        print('%s: %s at %s' % (hostname,
                                errorIndex and varBinds[int(errorIndex) - 1][0] or '?'))
        for varBind in varBinds:
            print(' = '.join([x.prettyPrint() for x in varBind]))

def failure(errorIndication, hostname):
    print('%s failure: %s' % (hostname, errorIndication))

# noinspection PyUnusedLocal
def sendone(reactor, snmpEngine, hostname, notifyType):
    d = sendNotification(
        CommunityData('public', tag=hostname),
        UdpTransportTarget((hostname, 162), tagList=hostname),
            ('', ''),
            ('', OctetString('my system'))
    d.addCallback(success, hostname).addErrback(failure, hostname)
    return d

def sendall(reactor, destinations):
    snmpEngine = SnmpEngine()

    return DeferredList(
        [sendone(reactor, snmpEngine, hostname, notifyType)
         for hostname, notifyType in destinations]

react(sendall, [[('', 'trap'),
                 ('', 'inform')]])

Download script.

See also: library reference.