Table operations

GET table row

Send SNMP GET request using the following options:

  • with SNMPv3, user ‘usr-none-none’, no authentication, no privacy
  • over IPv4/UDP
  • to an Agent at demo.snmplabs.com:161
  • for IF-MIB::ifInOctets.1 and IF-MIB::ifOutOctets.1 MIB object
  • perform response OIDs and values resolution at MIB

Functionally similar to:

$ snmpget -v3 -l authPriv -u usr-md5-des -A authkey1 -X privkey1 demo.snmplabs.com IF-MIB::ifInOctets.1 IF-MIB::ifOutOctets.1
from pysnmp.hlapi import *

errorIndication, errorStatus, errorIndex, varBinds = next(
    getCmd(SnmpEngine(),
           UsmUserData('usr-none-none'),
           UdpTransportTarget(('demo.snmplabs.com', 161)),
           ContextData(),
           ObjectType(ObjectIdentity('IF-MIB', 'ifInOctets', 1)),
           ObjectType(ObjectIdentity('IF-MIB', 'ifOutOctets', 1)))
)

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]))

Download script.

Fetch table row by composite index

Send SNMP GET request using the following options:

  • with SNMPv3, user ‘usr-sha-aes128’, SHA auth, AES128 privacy
  • over IPv4/UDP
  • to an Agent at demo.snmplabs.com:161
  • for TCP-MIB::tcpConnLocalAddress.”0.0.0.0”.22.”0.0.0.0”.0 MIB object

Functionally similar to:

$ snmpget -v3 -l authPriv -u usr-md5-des -A authkey1 -X privkey1 -a SHA -x AES demo.snmplabs.com TCP-MIB::tcpConnLocalAddress.”0.0.0.0”.22.”0.0.0.0”.0
from pysnmp.hlapi import *

errorIndication, errorStatus, errorIndex, varBinds = next(
    getCmd(SnmpEngine(),
           UsmUserData('usr-sha-aes128', 'authkey1', 'privkey1',
                       authProtocol=usmHMACSHAAuthProtocol,
                       privProtocol=usmAesCfb128Protocol),
           UdpTransportTarget(('demo.snmplabs.com', 161)),
           ContextData(),
           ObjectType(ObjectIdentity('TCP-MIB',
                                     'tcpConnLocalAddress',
                                     '0.0.0.0', 22,
                                     '0.0.0.0', 0)))
)

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]))

Download script.

Fetch scalar and table variables

Send a series of SNMP GETBULK requests using the following options:

  • with SNMPv3 with user ‘usr-md5-des’, MD5 auth and DES privacy protocols
  • over IPv6/UDP
  • to an Agent at [::1]:161
  • with values non-repeaters = 1, max-repetitions = 25
  • for IP-MIB::ipAdEntAddr and all columns of the IF-MIB::ifEntry table
  • stop when response OIDs leave the scopes of the table

Functionally similar to:

$ snmpbulkwalk -v3 -lauthPriv -u usr-md5-des -A authkey1 -X privkey1 -Cn1, -Cr25 demo.snmplabs.com IP-MIB::ipAdEntAddr IP-MIB::ipAddrEntry
from pysnmp.hlapi import *

for (errorIndication,
     errorStatus,
     errorIndex,
     varBinds) in bulkCmd(SnmpEngine(),
                          UsmUserData('usr-md5-des', 'authkey1', 'privkey1'),
                          Udp6TransportTarget(('::1', 161)),
                          ContextData(),
                          1, 25,
                          ObjectType(ObjectIdentity('IP-MIB', 'ipAdEntAddr')),
                          ObjectType(ObjectIdentity('IP-MIB', 'ipAddrEntry')),
                          lexicographicMode=False):

    if errorIndication:
        print(errorIndication)
        break
    elif errorStatus:
        print('%s at %s' % (errorStatus.prettyPrint(),
                            errorIndex and varBinds[int(errorIndex) - 1][0] or '?'))
        break
    else:
        for varBind in varBinds:
            print(' = '.join([x.prettyPrint() for x in varBind]))

Download script.

Fetch whole SNMP table

Send a series of SNMP GETNEXT requests using the following options:

  • with SNMPv1, community ‘public’
  • over IPv4/UDP
  • to an Agent at demo.snmplabs.com:161
  • for some columns of the IF-MIB::ifEntry table
  • stop when response OIDs leave the scopes of initial OIDs

Functionally similar to:

$ snmpwalk -v1 -c public demo.snmplabs.com IF-MIB::ifDescr IF-MIB::ifType IF-MIB::ifMtu IF-MIB::ifSpeed IF-MIB::ifPhysAddress IF-MIB::ifType
from pysnmp.hlapi import *

for (errorIndication,
     errorStatus,
     errorIndex,
     varBinds) in nextCmd(SnmpEngine(),
                          CommunityData('public', mpModel=0),
                          UdpTransportTarget(('demo.snmplabs.com', 161)),
                          ContextData(),
                          ObjectType(ObjectIdentity('IF-MIB', 'ifDescr')),
                          ObjectType(ObjectIdentity('IF-MIB', 'ifType')),
                          ObjectType(ObjectIdentity('IF-MIB', 'ifMtu')),
                          ObjectType(ObjectIdentity('IF-MIB', 'ifSpeed')),
                          ObjectType(ObjectIdentity('IF-MIB', 'ifPhysAddress')),
                          ObjectType(ObjectIdentity('IF-MIB', 'ifType')),
                          lexicographicMode=False):

    if errorIndication:
        print(errorIndication)
        break
    elif errorStatus:
        print('%s at %s' % (errorStatus.prettyPrint(),
                            errorIndex and varBinds[int(errorIndex)-1][0] or '?'))
        break
    else:
        for varBind in varBinds:
            print(' = '.join([x.prettyPrint() for x in varBind]))

Download script.

See also: library reference.