Advanced Command Generator¶
Concurrent queries¶
Send multiple SNMP GET requests at once using the following options:
- with SNMPv2c, community ‘public’
- over IPv4/UDP
- to multiple Agents at demo.snmplabs.com
- for instance of SNMPv2-MIB::sysDescr.0 MIB object
- based on asyncio I/O framework
Functionally similar to:
$ snmpget -v2c -c public demo.snmplabs.com:1161 SNMPv2-MIB::sysDescr.0
$ snmpget -v2c -c public demo.snmplabs.com:2161 SNMPv2-MIB::sysDescr.0
$ snmpget -v2c -c public demo.snmplabs.com:3161 SNMPv2-MIB::sysDescr.0
import asyncio
from pysnmp.hlapi.v3arch.asyncio import *
@asyncio.coroutine
def getone(snmpEngine, hostname):
iterator = getCmd(
snmpEngine,
CommunityData('public'),
UdpTransportTarget(hostname),
ContextData(),
ObjectType(ObjectIdentity('SNMPv2-MIB', 'sysDescr', 0))
)
errorIndication, errorStatus, errorIndex, varBinds = yield from iterator
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(
[getone(snmpEngine, ('demo.snmplabs.com', 1161)),
getone(snmpEngine, ('demo.snmplabs.com', 2161)),
getone(snmpEngine, ('demo.snmplabs.com', 3161))]
)
)
Download
script.
Sequential queries¶
Send multiple SNMP GET requests one by one using the following options:
- with SNMPv2c, community ‘public’
- over IPv4/UDP
- to multiple Agents at demo.snmplabs.com
- for instance of SNMPv2-MIB::sysDescr.0 MIB object
- based on asyncio I/O framework
Functionally similar to:
$ snmpget -v2c -c public demo.snmplabs.com:1161 SNMPv2-MIB::sysDescr.0
$ snmpget -v2c -c public demo.snmplabs.com:2161 SNMPv2-MIB::sysDescr.0
$ snmpget -v2c -c public demo.snmplabs.com:3161 SNMPv2-MIB::sysDescr.0
import asyncio
from pysnmp.hlapi.v3arch.asyncio import *
@asyncio.coroutine
def getone(snmpEngine, hostname):
iterator = getCmd(
snmpEngine,
CommunityData('public'),
UdpTransportTarget(hostname),
ContextData(),
ObjectType(ObjectIdentity('SNMPv2-MIB', 'sysDescr', 0))
)
errorIndication, errorStatus, errorIndex, varBinds = yield from iterator
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]))
@asyncio.coroutine
def getall(snmpEngine, hostnames):
for hostname in hostnames:
yield from getone(snmpEngine, hostname)
snmpEngine = SnmpEngine()
loop = asyncio.get_event_loop()
loop.run_until_complete(
getall(
snmpEngine, [
('demo.snmplabs.com', 1161),
('demo.snmplabs.com', 2161),
('demo.snmplabs.com', 3161)
]
)
)
Download
script.
See also: library reference.