a dozen of lightweight Twisted-based example scripts replaced more

complex example implementations used previously.

1 files changed, 71 insertions, 0 deletions

diff --git a/examples/v3arch/twisted/manager/ntfrcv/v2c-multiple-interfaces.py b/examples/v3arch/twisted/manager/ntfrcv/v2c-multiple-interfaces.py
new file mode 100644
index 0000000..66f542a
--- /dev/null
+++ b/examples/v3arch/twisted/manager/ntfrcv/v2c-multiple-interfaces.py
@@ -0,0 +1,71 @@
+#
+# Notification Receiver
+#
+# Receive SNMP TRAP/INFORM messages with the following options:
+#
+# * SNMPv1/SNMPv2c
+# * with SNMP community "public"
+# * over IPv4/UDP, listening at 127.0.0.1:162
+#   over IPv4/UDP, listening at 127.0.0.1:2162
+# * print received data on stdout
+# 
+# Either of the following Net-SNMP's commands will send notifications to this
+# receiver:
+#
+# $ snmptrap -v2c -c public 127.0.0.1:162 123 1.3.6.1.6.3.1.1.5.1 1.3.6.1.2.1.1.5.0 s test
+# $ snmpinform -v2c -c public 127.0.0.1:2162 123 1.3.6.1.6.3.1.1.5.1
+#
+from twisted.internet import reactor
+from pysnmp.entity import engine, config
+from pysnmp.carrier.twisted import dispatch
+from pysnmp.carrier.twisted.dgram import udp
+from pysnmp.entity.rfc3413 import ntfrcv
+
+# Create SNMP engine with autogenernated engineID and pre-bound
+# to socket transport dispatcher
+snmpEngine = engine.SnmpEngine()
+
+# Transport setup
+
+# Instantiate and register Twisted dispatcher at SNMP engine
+snmpEngine.registerTransportDispatcher(dispatch.TwistedDispatcher())
+
+# UDP over IPv4, first listening interface/port
+config.addSocketTransport(
+    snmpEngine,
+    udp.domainName + (1,),
+    udp.UdpTwistedTransport().openServerMode(('127.0.0.1', 162))
+)
+
+# UDP over IPv4, second listening interface/port
+config.addSocketTransport(
+    snmpEngine,
+    udp.domainName + (2,),
+    udp.UdpTwistedTransport().openServerMode(('127.0.0.1', 2162))
+)
+
+# SNMPv1/2c setup
+
+# SecurityName <-> CommunityName mapping
+config.addV1System(snmpEngine, 'my-area', 'public')
+
+# Callback function for receiving notifications
+def cbFun(snmpEngine,
+          stateReference,
+          contextEngineId, contextName,
+          varBinds,
+          cbCtx):
+    transportDomain, transportAddress = snmpEngine.msgAndPduDsp.getTransportInfo(stateReference)
+    print('Notification from %s, SNMP Engine %s, Context %s' % (
+            transportAddress, contextEngineId.prettyPrint(),
+            contextName.prettyPrint()
+        )
+    )
+    for name, val in varBinds:
+        print('%s = %s' % (name.prettyPrint(), val.prettyPrint()))
+ 
+# Register SNMP Application at the SNMP engine
+ntfrcv.NotificationReceiver(snmpEngine, cbFun)
+
+# Run Twisted main loop
+reactor.run()