Here is a capture of the event log on Netsight, in respect of the serialisation of logs. Wonder if the first line where - For input string: "<165" - is the problem, as its not recognising the format?
015-04-16 13:37:30,107 DEBUG [com.enterasys.netsight.api.eventlog.EventCustomParser] java.lang.NumberFormatException: For input string: "<165"
2015-04-16 13:37:30,108 DEBUG [com.enterasys.netsight.api.eventlog.EventEntry] new event entry id generated: 16324
2015-04-16 13:37:30,534 DEBUG [com.enterasys.netsight.server.eventlog.EventAlarmManager] checkBySeverity: Alarm Config Upload Failed does not match type for event with message: 10.10.10.10 NOTICE: port fe.6.20 UP
2015-04-16 13:37:30,534 DEBUG [com.enterasys.netsight.server.eventlog.EventAlarmManager] checkBySeverity: Alarm Core Uplink Down Alarm is not in the device group for the event with message: 10.10.10.10 NOTICE: port fe.6.20 UP
2015-04-16 13:37:30,534 DEBUG [com.enterasys.netsight.server.eventlog.EventAlarmManager] checkBySeverity: GroupIDs = 8 Event Device ID = 10.10.10.10
2015-04-16 13:37:30,534 DEBUG [com.enterasys.netsight.server.eventlog.EventAlarmManager] checkBySeverity: Alarm Device Up does not match type for event with message: 10.10.10.10 NOTICE: port fe.6.20 UP
2015-04-16 13:37:30,535 DEBUG [com.enterasys.netsight.server.eventlog.EventAlarmManager] checkBySeverity: Alarm Device Down does not match type for event with message: 10.10.10.10 NOTICE: port fe.6.20 UP
2015-04-16 13:37:30,535 DEBUG [com.enterasys.netsight.server.eventlog.EventAlarmManager] checkBySeverity: Alarm Power supply failed does not match type for event with message: 10.10.10.10 NOTICE: port fe.6.20 UP
2015-04-16 13:37:30,535 DEBUG [com.enterasys.netsight.server.eventlog.EventAlarmManager] checkBySeverity: Alarm NAC Appliance Up does not match type for event with message: 10.10.10.10 NOTICE: port fe.6.20 UP
2015-04-16 13:37:30,535 DEBUG [com.enterasys.netsight.server.eventlog.EventAlarmManager] checkBySeverity: Alarm NAC Appliance Down does not match type for event with message: 10.10.10.10 NOTICE: port fe.6.20 UP
2015-04-16 13:37:30,535 DEBUG [com.enterasys.netsight.server.eventlog.EventAlarmManager] checkBySeverity: Alarm Threat Inactive does not match type for event with message: 10.10.10.10 NOTICE: port fe.6.20 UP
2015-04-16 13:37:30,536 DEBUG [com.enterasys.netsight.server.eventlog.EventAlarmManager] checkBySeverity: Alarm Threat Active does not match type for event with message: 10.10.10.10 NOTICE: port fe.6.20 UP
2015-04-16 13:37:30,536 DEBUG [com.enterasys.netsight.server.eventlog.EventAlarmManager] checkBySeverity: Alarm Fan Failure does not match type for event with message: 10.10.10.10 NOTICE: port fe.6.20 UP
2015-04-16 13:37:30,536 DEBUG [com.enterasys.netsight.server.eventlog.EventAlarmManager] checkBySeverity: Alarm AP Radio Change does not match type for event with message: 10.10.10.10 NOTICE: port fe.6.20 UP
2015-04-16 13:37:30,536 DEBUG [com.enterasys.netsight.server.eventlog.EventAlarmManager] checkBySeverity: Alarm NAC License Violation does not match type for event with message: 10.10.10.10 NOTICE: port fe.6.20 UP
2015-04-16 13:37:30,536 DEBUG [com.enterasys.netsight.server.eventlog.EventAlarmManager] checkBySeverity: Alarm NAC Assessment License Violation Clear does not match type for event with message: 10.10.10.10 NOTICE: port fe.6.20 UP
2015-04-16 13:37:30,536 DEBUG [com.enterasys.netsight.server.eventlog.EventAlarmManager] checkBySeverity: Alarm AP Radio OnOff does not match type for event with message: 10.10.10.10 NOTICE: port fe.6.20 UP
2015-04-16 13:37:30,536 DEBUG [com.enterasys.netsight.server.eventlog.EventAlarmManager] checkBySeverity: Alarm NAC License Violation Clear does not match type for event with message: 10.10.10.10 NOTICE: port fe.6.20 UP
2015-04-16 13:37:30,536 DEBUG [com.enterasys.netsight.server.eventlog.EventAlarmManager] checkBySeverity: Alarm Rogue Inactive does not match type for event with message: 10.10.10.10 NOTICE: port fe.6.20 UP
2015-04-16 13:37:30,536 DEBUG [com.enterasys.netsight.server.eventlog.EventAlarmManager] checkBySeverity: Alarm Database Backup Disk Usage does not match type for event with message: 10.10.10.10 NOTICE: port fe.6.20 UP
2015-04-16 13:37:30,536 DEBUG [com.enterasys.netsight.server.eventlog.EventAlarmManager] checkBySeverity: Alarm Appliance Disk Usage does not match type for event with message: 10.10.10.10 NOTICE: port fe.6.20 UP
2015-04-16 13:37:30,536 DEBUG [com.enterasys.netsight.server.eventlog.EventAlarmManager] checkBySeverity: Alarm NAC Assessment License Violation does not match type for event with message: 10.10.10.10 NOTICE: port fe.6.20 UP
2015-04-16 13:37:30,536 DEBUG [com.enterasys.netsight.server.eventlog.EventAlarmManager] checkBySeverity: Alarm AC Power Lost does not match type for event with message: 10.10.10.10 NOTICE: port fe.6.20 UP
2015-04-16 13:37:30,536 DEBUG [com.enterasys.netsight.server.eventlog.EventAlarmManager] checkBySeverity: Alarm AC Power Recovered does not match type for event with message: 10.10.10.10 NOTICE: port fe.6.20 UP
2015-04-16 13:37:30,536 DEBUG [com.enterasys.netsight.server.eventlog.EventAlarmManager] checkBySeverity: Alarm IPMI Event does not match type for event with message: 10.10.10.10 NOTICE: p ort fe.6.20 UP
2015-04-16 13:37:30,536 DEBUG [com.enterasys.netsight.server.eventlog.EventAlarmManager] checkBySeverity: Alarm Rogue Active does not match type for event with message: 10.10.10.10 NOTICE: port fe.6.20 UP
2015-04-16 13:37:30,536 DEBUG [com.enterasys.netsight.server.eventlog.EventAlarmManager] checkBySeverity: Alarm NAC Lost Contact with Switch does not match type for event with message: 10.10.10.10 NOTICE: port fe.6.20 UP
2015-04-16 13:37:30,536 DEBUG [com.enterasys.netsight.server.eventlog.EventAlarmManager] checkBySeverity: Alarm NAC Lost Contact with Switch Clear does not match type for event with message: 10.10.10.10 NOTICE: port fe.6.20 UP
2015-04-16 13:37:30,536 DEBUG [com.enterasys.netsight.server.eventlog.EventAlarmManager] checkBySeverity: Alarm Drive Fault does not match type for event with message: 10.10.10.10 NOTICE: port fe.6.20 UP
2015-04-16 13:37:30,537 DEBUG [com.enterasys.netsight.server.eventlog.EventAlarmManager] checkBySeverity: Alarm Drive Fault Recovered does not match type for event with message: 10.10.10.10 NOTICE: port fe.6.20 UP
2015-04-16 13:37:30,537 DEBUG [com.enterasys.netsight.server.eventlog.EventAlarmManager] checkBySeverity: Alarm NAC Lost Contact with RADIUS Server does not match type for event with message: 10.10.10.10 NOTICE: port fe.6.20 UP
2015-04-16 13:37:30,537 DEBUG [com.enterasys.netsight.server.eventlog.EventAlarmManager] checkBySeverity: Alarm NAC Lost Contact with RADIUS Server Clear does not match type for event with message: 10.10.10.10 NOTICE: port fe.6.20 UP
2015-04-16 13:37:30,537 DEBUG [com.enterasys.netsight.server.eventlog.EventAlarmManager] checkBySeverity: Alarm NAC Lost Partial Contact with Switch does not match type for event with message: 10.10.10.10 NOTICE: port fe.6.20 UP
2015-04-16 13:37:30,537 DEBUG [com.enterasys.netsight.server.eventlog.EventAlarmManager] checkBySeverity: Alarm NAC Lost Partial Contact with Switch Clear does not match type for event with message: 10.10.10.10 NOTICE: port fe.6.20 UP
2015-04-16 13:37:30,537 DEBUG [com.enterasys.netsight.server.eventlog.EventAlarmManager] checkBySeverity: Alarm NAC RFC 3576 Error Clear does not match type for event with message: 10.10.10.10 NOTICE: port fe.6.20 UP
2015-04-16 13:37:30,537 DEBUG [com.enterasys.netsight.server.eventlog.EventAlarmManager] checkBySeverity: Alarm NAC RFC 3576 Error does not match type for event with message: 10.10.10.10 NOTICE: port fe.6.20 UP
2015-04-16 13:37:30,537 DEBUG [com.enterasys.netsight.server.eventlog.EventAlarmManager] checkBySeverity: Alarm NAC Database Table Service is up does not match type for event with message: 10.10.10.10 NOTICE: port fe.6.20 UP
2015-04-16 13:37:30,537 DEBUG [com.enterasys.netsight.server.eventlog.EventAlarmManager] checkBySeverity: Alarm NAC Database Table Service down does not match type for event with message: 10.10.10.10 NOTICE: port fe.6.20 UP
2015-04-16 13:37:30,537 DEBUG [com.enterasys.netsight.server.eventlog.EventAlarmManager] checkBySeverity: Alarm NAC Lost Contact with LDAP Service Clear does not match type for event with message: 10.10.10.10 NOTICE: port fe.6.20 UP
2015-04-16 13:37:30,537 DEBUG [com.enterasys.netsight.server.eventlog.EventAlarmManager] checkBySeverity: Alarm NAC Lost Contact with LDAP Service does not match type for event with message: 10.10.10.10 NOTICE: port fe.6.20 UP
2015-04-16 13:37:30,538 DEBUG [com.enterasys.netsight.server.eventlog.EventAlarmManager] checkBySeverity: Alarm NAC Lost Partial Contact with LDAP Service Clear does not match type for event with message: 10.10.10.10 NOTICE: port fe.6.20 UP
2015-04-16 13:37:30,538 DEBUG [com.enterasys.netsight.server.eventlog.EventAlarmManager] checkBySeverity: Alarm NAC Lost Partial Contact with LDAP Service does not match type for event with message: 10.10.10.10 NOTICE: port fe.6.20 UP
2015-04-16 13:37:30,538 DEBUG [com.enterasys.netsight.server.eventlog.EventAlarmManager] checkBySeverity: Alarm NAC RADIUS Requests Warning Threshold Rectified does not match type for event with message: 10.10.10.10 NOTICE: port fe.6.20 UP
2015-04-16 13:37:30,538 DEBUG [com.enterasys.netsight.server.eventlog.EventAlarmManager] checkBySeverity: Alarm NAC RADIUS Requests Warning Threshold Exceeded does not match type for event with message: 10.10.10.10 NOTICE: port fe.6.20 UP
2015-04-16 13:37:30,538 DEBUG [com.enterasys.netsight.server.eventlog.EventAlarmManager] checkBySeverity: Alarm NAC RADIUS Requests Critical Threshold Rectified does not match type for event with message: 10.10.10.10 NOTICE: port fe.6.20 UP
2015-04-16 13:37:30,538 DEBUG [com.enterasys.netsight.server.eventlog.EventAlarmManager] checkBySeverity: Alarm NAC RADIUS Requests Critical Threshold Exceeded does not match type for event with message: 10.10.10.10 NOTICE: port fe.6.20 UP
2015-04-16 13:37:30,538 DEBUG [com.enterasys.netsight.api.eventlog.EventAlarmDef] matchEventEntry: Severity = true Category = true Type = true
2015-04-16 13:37:30,538 DEBUG [com.enterasys.netsight.api.eventlog.EventAlarmDef] matchEventEntry: Event = true LogManager = false Subnet = true
2015-04-16 13:37:30,538 DEBUG [com.enterasys.netsight.api.eventlog.EventAlarmDef] matchEventEntry: Phrase = false
2015-04-16 13:37:30,539 DEBUG [com.enterasys.netsight.api.eventlog.EventAlarmDef] matchEventEntry: Matches = false for event with message =10.10.10.10 NOTICE: port fe.6.20 UP
2015-04-16 13:37:30,539 DEBUG [com.enterasys.netsight.server.eventlog.EventAlarmManager] checkByCustomCriteria: Alarm AP In Service not enabled for event with message 10.10.10.10 NOTICE: port fe.6.20 UP
2015-04-16 13:37:30,539 DEBUG [com.enterasys.netsight.server.eventlog.EventAlarmManager] checkByCustomCriteria: Alarm AP Out of Service not enabled for event with message 10.10.10.10 NOTICE: port fe.6.20 UP
2015-04-16 13:37:30,539 DEBUG [com.enterasys.netsight.api.eventlog.EventAlarmDef] matchEventEntry: Severity = true Category = true Type = true
2015-04-16 13:37:30,539 DEBUG [com.enterasys.netsight.api.eventlog.EventAlarmDef] matchEventEntry: Event = true LogManager = false Subnet = true
2015-04-16 13:37:30,539 DEBUG [com.enterasys.netsight.api.eventlog.EventAlarmDef] matchEventEntry: Phrase = false
2015-04-16 13:37:30,539 DEBUG [com.enterasys.netsight.api.eventlog.EventAlarmDef] matchEventEntry: Matches = false for event with message =10.10.10.10 NOTICE: port fe.6.20 UP
2015-04-16 13:37:30,539 DEBUG [com.enterasys.netsight.server.eventlog.EventAlarmManager] checkByCustomCriteria: Alarm EMAIL TEST not enabled for event with message 10.10.10.10 NOTICE: port fe.6.20 UP
2015-04-16 13:37:30,539 DEBUG [com.enterasys.netsight.api.eventlog.EventAlarmDef] matchEventEntry: Severity = true Category = true Type = true
2015-04-16 13:37:30,539 DEBUG [com.enterasys.netsight.api.eventlog.EventAlarmDef] matchEventEntry: Event = true LogManager = false Subnet = true
2015-04-16 13:37:30,539 DEBUG [com.enterasys.netsight.api.eventlog.EventAlarmDef] matchEventEntry: Phrase = false
The last 5 lines repeat almost continually?