Can anyone tell me why this entry was added?

port 2 is connected to another switch, which only acts as a switch.
It is a rule dynamically created that’s why you can not remove it…
What model is that?
Dynamic Created roles or routes cannot be removed! If this will be available to remove port will not forward traffic to Switch!
yes, it is dynamically created and I don’t know why?
CRS326-24G-2S+RM