Using snmpTrap plugin and all fields are decoded properly except the eventDate field. This is not decoded and appears garbled in the kibana discover page.
The string in message field:
@name=[1.3.6.1.4.1.3881.2.1.8.1.4.19], @value="\a\xE2\x06\x1E\x17(\x00\x00">
is it that ruby-snmp is parsing incorrectly? there's a '(' in the @value and wondering if that is causing the issue ..