- UIM 9.x or later
- snmptd v3.30
AES encryption 256-bit key strength not supported.
AES 256 is not yet supported in the snmptd probe.
AES was reconfigured to use 128-bit key strength (down from 256, then Cisco switch SNMPv3 traps came through.)
https://knowledge.broadcom.com/external/article/12135/how-to-raise-an-enhancement-request-for.html