Value,Description,Reference byte,Bytes transferred.,[RFC7970] mbit,Megabits (Mbits) transferred.,[RFC7970] packet,Packets.,[RFC7970] flow,Network flow records.,[RFC7970] session,Sessions.,[RFC7970] alert,"Notifications generated by another system (e.g., IDS or SIEM system).",[RFC7970] message,"Messages (e.g., mail messages).",[RFC7970] event,Events.,[RFC7970] host,Hosts.,[RFC7970] site,Site.,[RFC7970] organization,Organizations.,[RFC7970] ext-value,"A value used to indicate that this attribute is extended and the actual value is provided using the corresponding ext-* attribute. See Section 5.1.1 of [RFC7970].",[RFC7970]