Strange spike in bandwidth speed and usage

Hello,

thank you very much for your KB-Post. Can you please upload a screenshot showing this? Do you know if SNMP v2c or SNMP v1 is used?

best regards.

Here is a screen capture of the event in question

Do you know if SNMP v2c or SNMP v1 is used? You can check this by simply adding the sensor again, with the parent device set to use SNMP v2c. And then compare the volumes for at least full hours between the old and the new sensor. This might be a simple overflow issue here.

SNMP v2

'name_':'Probe+Device',
'active_':'1',
'ipversion_':'0',
'tags_':'',
'priority_':'5',
'deviceicon_':'a_server_1.png',
'serviceurl_':'http%3A%2F%2F127.0.0.1',
'discoverytype_':'0',
'devicetemplate_':'1',
'discoveryschedule_':'0',
'locationgroup':'0',
'locationgroup':'1',
'location_':'',
'lonlat_':'0%2C0',
'windowsconnection':'0',
'windowsconnection':'1',
'windowslogindomain_':'',
'windowsloginusername_':'',
'windowsloginpassword_':'',
'linuxconnection':'0',
'linuxconnection':'1',
'linuxloginusername_':'',
'linuxloginmode_':'0',
'linuxloginpassword_':'',
'privatekey_':'',
'wbemprotocol_':'https',
'wbemportmode_':'0',
'wbemport_':'5989',
'sshport_':'22',
'vmwareconnection':'0',
'vmwareconnection':'1',
'esxuser_':'',
'esxpassword_':'',
'esxprotocol_':'0',
'snmpversiongroup':'0',
'snmpversiongroup':'1',
'snmpversion_':'V2',
'snmpcommv1_':'public',
'snmpcommv2_':'public',
'snmpauthmode_':'authpHMACMD596',
'snmpuser_':'',
'snmpauthpass_':'',
'snmpencmode_':'DESPrivProtocol',
'snmpencpass_':'',
'snmpcontext_':'',
'snmpport_':'161',
'snmptimeout_':'5',
'wmicompatibility':'0',
'wmicompatibility':'1',
'wmiorpc_':'1',
'wmitimeoutmethod_':'1',
'wmitimeout_':'',
'snmpcompatibility':'0',
'snmpcompatibility':'1',
'snmpdelay_':'0',
'retrysnmp_':'1',
'ignoreoverflow_':'1',
'ignorezero_':'1',
'force32_':'0',
'usesingleget_':'0',
'trafficportname_':'(%5Bport%5D)+%5Bifalias%5D',
'updateportname_':'0',
'portupdateoid_':'10',
'portstart_':'0',
'portend_':'0',
'snmpdebuglog_':'0',
'httpproxy':'0',
'httpproxy':'1',
'proxy_':'',
'proxyport_':'8080',
'proxyuser_':'',
'proxypassword_':'',
'intervalgroup':'0',
'intervalgroup':'1',
'interval_':'60%7C60+seconds',
'inherittriggers':'1',
'scheduledependency':'0',
'scheduledependency':'1',
'schedule_':'-1%7CNone%7C',
'maintenable_':'0',
'maintstart_':'2013-09-19-17-40-00',
'maintstart__picker':'2013-09-19+17%3A40',
'maintend_':'2013-09-19-17-40-00',
'maintend__picker':'2013-09-19+17%3A40',
'dependencytype_':'0',
'dependency_':'',
'depdelay_':'0',
'accessgroup':'0',
'accessgroup':'1',
'accessrights_':'1',
'accessrights_201':'-1',
'unitconfiggroup':'0',
'unitconfiggroup':'1',
'unitconfig_':'',
'unitconfig__oukBytesBandwidth_volume':'7',
'unitconfig__oukBytesBandwidth_speed':'12',
'unitconfig__oukBytesBandwidth_time':'1',
'unitconfig__oukBytesDisk_volume':'8',
'unitconfig__oukBytesFile_volume':'6',
'unitconfig__oukBytesMemory_volume':'8',
'id':'40'

I have the option to go to v3 or v1 should i stick with v2c?

SNMP v2c should be fine. Did you try adding the sensor again? Please check, if during the adding process the "problematic" interface is listed as "64 bit" counter.