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Script to poll SNMP counters
#!/usr/bin/env python
#
# Script to poll Ethernet interface counters from a SNMP host
# requires pysnmp and the handy snmpclient library from
# https://github.com/seveas/python-snmpclient
#
# licensed under creative commons CC0 (public domain)
#
import sys
import time
import sched
import snmpclient
import pysnmp.entity.rfc3413.oneliner.cmdgen as cmdgen
client = snmpclient.SnmpClient('192.168.1.10', [{}])
generator = cmdgen.CommandGenerator()
target = cmdgen.UdpTransportTarget((client.host, client.port))
oids = ['IF-MIB::ifHCInOctets.10001', 'IF-MIB::ifHCOutOctets.10002', 'IF-MIB::ifHCOutOctets.10003']
noids = map(snmpclient.nodeid, oids)
s = sched.scheduler(time.time, time.sleep)
with file(sys.argv[1], 'a') as f:
f.write('# start\n')
def poll(sc):
s.enter(1, 1, poll, (s,))
val = [time.time()]
for noid in noids:
error, _, _, binds = generator.getCmd(client.auth, target, noid)
if error:
raise Exception('FAIL')
val.append(int(binds[0][1]))
val = ','.join(map(str, val))
f.write(val)
f.write('\n')
f.flush()
print val
s.enter(1, 1, poll, (s,))
s.run()
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