| Description | Indicates the attribute to be matched.
null(0) is a special case; null rules always succeed.
matchingStoD(50) is set by the meter's Packet Matching Engine.
Its value is true(1) if the PME is attempting to match the
packet with its addresses in Source-to-Destination order (i.e.
as they appear in the packet), and false(2) otherwise.
Details of how packets are matched are given in the 'Traffic
Flow Measurement: Architecture' document [RTFM-ARC].
v1(51), v2(52), v3(53), v4(54) and v5(55) select meter
variables, each of which can hold the name (i.e. selector
value) of an address attribute. When one of these is used
as a selector, its value specifies the attribute to be
tested. Variable values are set by an Assign action. |