1 files changed, 86 insertions, 0 deletions
diff --git a/examples/hlapi/asyncore/manager/cmdgen/async-pull-mibs-from-multiple-agents-at-once.py b/examples/hlapi/asyncore/manager/cmdgen/async-pull-mibs-from-multiple-agents-at-once.py
new file mode 100644
index 0000000..ecb35ee
--- /dev/null
+++ b/examples/hlapi/asyncore/manager/cmdgen/async-pull-mibs-from-multiple-agents-at-once.py
@@ -0,0 +1,86 @@
+"""
+Walk multiple Agents at once
+++++++++++++++++++++++++++++
+
+Iterate over MIBs of multiple SNMP Agents asynchronously using the
+following options:
+
+* with SNMPv1, community 'public' and 
+  with SNMPv2c, community 'public' and
+  with SNMPv3, user 'usr-md5-des', MD5 auth and DES privacy
+* over IPv4/UDP and 
+  over IPv6/UDP
+* to an Agent at demo.snmplabs.com:161 and
+  to an Agent at [::1]:161
+* for multiple MIB subtrees and tables
+
+"""#
+from pysnmp.hlapi.asyncore import *
+
+# List of targets in the followin format:
+# ( ( authData, transportTarget, varNames ), ... )
+targets = (
+    # 1-st target (SNMPv1 over IPv4/UDP)
+    ( CommunityData('public', mpModel=0),
+      UdpTransportTarget(('demo.snmplabs.com', 161)),
+      ( ObjectType(ObjectIdentity('1.3.6.1.2.1')),
+        ObjectType(ObjectIdentity('1.3.6.1.3.1')) ) ),
+    # 2-nd target (SNMPv2c over IPv4/UDP)
+    ( CommunityData('public'),
+      UdpTransportTarget(('demo.snmplabs.com', 161)),
+      ( ObjectType(ObjectIdentity('1.3.6.1.4.1')), ) ),
+    # 3-nd target (SNMPv3 over IPv4/UDP)
+    ( UsmUserData('usr-md5-des', 'authkey1', 'privkey1'),
+      UdpTransportTarget(('demo.snmplabs.com', 161)),
+      ( ObjectType(ObjectIdentity('SNMPv2-MIB', 'system')), ) ),
+    # 4-th target (SNMPv3 over IPv6/UDP)
+    ( UsmUserData('usr-md5-none', 'authkey1'),
+      Udp6TransportTarget(('::1', 161)),
+      ( ObjectType(ObjectIdentity('IF-MIB', 'ifTable')), ) )
+    # N-th target
+    # ...
+)
+
+# Wait for responses or errors, submit GETNEXT requests for further OIDs
+def cbFun(snmpEngine, sendRequestHandle, errorIndication, 
+          errorStatus, errorIndex, varBindTable, cbCtx):
+    (varBindHead, authData, transportTarget) = cbCtx
+    print('%s via %s' % (authData, transportTarget))
+    if errorIndication:
+        print(errorIndication)
+        return
+    elif errorStatus:
+        print('%s at %s' % (
+            errorStatus.prettyPrint(),
+            errorIndex and varBindTable[-1][int(errorIndex)-1][0] or '?'
+            )
+        )
+        return
+    else:
+        for idx, varBind in enumerate(varBindTable[-1]):
+            if varBind[1] is not None and varBindHead[idx] <= varBind[0]:
+                break   # still in table
+        else:
+            print('went out of table at %s' % (name, ))
+            return
+
+        for varBindRow in varBindTable:
+            for varBind in varBindRow:
+                print(' = '.join([ x.prettyPrint() for x in varBind ]))
+
+        return True # continue table retrieval
+
+snmpEngine = SnmpEngine()
+
+cmdGen  = AsyncCommandGenerator()
+
+# Submit initial GETNEXT requests and wait for responses
+for authData, transportTarget, varBinds in targets:
+    varBindHead = [ x[0] for x in cmdGen.makeVarBinds(snmpEngine, varBinds ) ]
+    cmdGen.nextCmd(
+        snmpEngine, authData, transportTarget, ContextData(), varBinds,
+        # User-space callback function and its context
+        (cbFun, (varBindHead, authData, transportTarget))
+    )
+
+snmpEngine.transportDispatcher.runDispatcher()