Hi All,
New KB article published as ID TEC1698644.
It addresses the necessary requirement for discovery of SNMPv3 devices via the Data Aggregator where each device must have a unique snmpEngineId assigned to it.
Direct URL to the article is here:
http://www.ca.com/us/support/ca-support-online/product-content/knowledgebase-articles/tec1698644.aspx
Thanks,
Mike