I found "event Unknown" in show tech-support details outputs.
What does "Unknown" mean?
I think switch can't receive connected devices RSCN information, right?
show rscn internal sent-log
2021 Nov 17 17:14:06.234568: E_DEBUG [0] rscn [3897]: vsan 1: INT fc1/3: event UNKNOWN
2021 Nov 17 17:03:22.232947: E_DEBUG [0] rscn [3897]: vsan 1: INT fc1/3: event UNKNOWN
2021 Nov 17 17:03:09.743257: E_DEBUG [0] rscn [3897]: vsan 1: INT fc1/3: event PORT_ONLINE
2021 Nov 17 16:26:58.203520: E_DEBUG [0] rscn [3897]: vsan 1: INT fc1/3: event UNKNOWN
2021 Nov 17 16:26:30.829029: E_DEBUG [0] rscn [3897]: vsan 1: INT fc1/3: event UNKNOWN
