This OID, typed as CucsSwMonAdminState, reports whether an admin has administratively enabled or disabled that NetFlow monitoring session. This is the setting an admin actually controls, so checking it first rules out an intentional shutdown before spending time troubleshooting a NetflowMonSession that simply is not passing traffic because it was disabled on purpose. A NetflowMonSession reporting a disabled admin state after a maintenance window would explain why that link or session shows no activity, without any deeper fault existing.