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"""
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
* over IPv4/UDP and
over IPv6/UDP
* to an Agent at demo.snmplabs.com:161 and
to an Agent at [::1]:161
* pull MIB variables till EOM
* Enable MIB lookup feature
"""#
from pysnmp.hlapi.v1arch.asyncore import *
# List of targets in the following 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-th target (SNMPv3 over IPv6/UDP)
(CommunityData('public'),
Udp6TransportTarget(('::1', 161)),
(ObjectType(ObjectIdentity('IF-MIB', 'ifTable')),))
# N-th target
# ...
)
def cbFun(errorIndication, errorStatus, errorIndex, varBindTable, **context):
if errorIndication:
print(errorIndication)
elif errorStatus:
print('%s at %s' % (errorStatus.prettyPrint(),
errorIndex and varBinds[int(errorIndex) - 1][0] or '?'))
else:
for varBindRow in varBindTable:
for varBind in varBindRow:
print(' = '.join([x.prettyPrint() for x in varBind]))
return context.get('nextVarBinds')
snmpDispatcher = SnmpDispatcher()
# Submit a bunch of initial GETNEXT requests
for authData, transportTarget, varBinds in targets:
nextCmd(snmpDispatcher, authData, transportTarget, *varBinds,
cbFun=cbFun, lookupMib=True)
snmpDispatcher.transportDispatcher.runDispatcher()
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