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.pysnmp.com
for instance of SNMPv2-MIB::sysDescr.0 MIB object
based on asyncio I/O framework

Functionally similar to:

$ snmpget -v2c -c public demo.pysnmp.com:1161 SNMPv2-MIB::sysDescr.0
$ snmpget -v2c -c public demo.pysnmp.com:2161 SNMPv2-MIB::sysDescr.0
$ snmpget -v2c -c public demo.pysnmp.com:3161 SNMPv2-MIB::sysDescr.0

import asyncio
from pysnmp.hlapi.asyncio import *


async def getone(snmpEngine, hostname):
    errorIndication, errorStatus, errorIndex, varBinds = await getCmd(
        snmpEngine,
        CommunityData("public"),
        UdpTransportTarget(hostname),
        ContextData(),
        ObjectType(ObjectIdentity("SNMPv2-MIB", "sysDescr", 0)),
    )

    if errorIndication:
        print(errorIndication)
    elif errorStatus:
        print(
            "{} at {}".format(
                errorStatus.prettyPrint(),
                errorIndex and varBinds[int(errorIndex) - 1][0] or "?",
            )
        )
    else:
        for varBind in varBinds:
            print(" = ".join([x.prettyPrint() for x in varBind]))


async def main():
    snmpEngine = SnmpEngine()
    await asyncio.gather(
        getone(snmpEngine, ("demo.pysnmp.com", 1161)),
        getone(snmpEngine, ("demo.pysnmp.com", 2161)),
        getone(snmpEngine, ("demo.pysnmp.com", 3161)),
    )


asyncio.run(main())

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.pysnmp.com
for instance of SNMPv2-MIB::sysDescr.0 MIB object
based on asyncio I/O framework

Functionally similar to:

$ snmpget -v2c -c public demo.pysnmp.com:1161 SNMPv2-MIB::sysDescr.0
$ snmpget -v2c -c public demo.pysnmp.com:2161 SNMPv2-MIB::sysDescr.0
$ snmpget -v2c -c public demo.pysnmp.com:3161 SNMPv2-MIB::sysDescr.0

import asyncio
from pysnmp.hlapi.asyncio import *


async def getone(snmpEngine, hostname):
    errorIndication, errorStatus, errorIndex, varBinds = await getCmd(
        snmpEngine,
        CommunityData("public"),
        UdpTransportTarget(hostname),
        ContextData(),
        ObjectType(ObjectIdentity("SNMPv2-MIB", "sysDescr", 0)),
    )

    if errorIndication:
        print(errorIndication)
    elif errorStatus:
        print(
            "{} at {}".format(
                errorStatus.prettyPrint(),
                errorIndex and varBinds[int(errorIndex) - 1][0] or "?",
            )
        )
    else:
        for varBind in varBinds:
            print(" = ".join([x.prettyPrint() for x in varBind]))


async def getall(snmpEngine, hostnames):
    for hostname in hostnames:
        await getone(snmpEngine, hostname)


snmpEngine = SnmpEngine()

asyncio.run(
    getall(
        snmpEngine,
        [
            ("demo.pysnmp.com", 1161),
            ("demo.pysnmp.com", 2161),
            ("demo.pysnmp.com", 3161),
        ],
    )
)

Download script.