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

   import asyncio
   from pysnmp.hlapi.asyncio import *


   @asyncio.coroutine
   def sendone(snmpEngine, hostname, notifyType):
       (errorIndication,
        errorStatus,
        errorIndex,
        varBinds) = yield from sendNotification(
           snmpEngine,
           CommunityData('public', tag=hostname),
           UdpTransportTarget((hostname, 162), tagList=hostname),
           ContextData(),
           notifyType,
           NotificationType(
               ObjectIdentity('1.3.6.1.6.3.1.1.5.2')
           ).addVarBinds(
               ('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'))
           )
       )

       if errorIndication:
           print(errorIndication)
       elif errorStatus:
           print('%s: at %s' % (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()

   loop = asyncio.get_event_loop()
   loop.run_until_complete(
       asyncio.wait([sendone(snmpEngine, 'demo.snmplabs.com', 'trap'),
                     sendone(snmpEngine, 'demo.snmplabs.com', 'inform')])
   )

"Download" script.

See also: library reference.
