| Description | The interface most closely associated with this event.
For example, for an event that relates to the receipt of
a packet, this object identifies the interface on which
the packet was received. If there are multiple interfaces
associated with an event, the interface most closely
associated with the cause of the event will be used.
For example, for an event for the setup of a TCP
connection, the interface on the initiator's side
of the connection would be preferred. If there is no
associated interface, then this object has the value zero. |