This field (SnmpAdminString) records internal flag bits describing the current FSM run tracked by the fabric interconnect's internal endpoint manager, the per-switch process that drives port and port-channel configuration through its state machine. These flags are primarily diagnostic detail Cisco TAC or advanced admins read on this endpoint manager when a straightforward status/progress reading isn't enough to explain an unusual FSM behavior. The value is often empty during normal operation and only populated with internal codes when the FSM behaves unexpectedly.