6. Section 5.2, under "Router State Filtering".
We know that the filtering definition says:
Filtering: a filter is a selection operation that selects a
packet deterministically based on the packet content, its
treatment, and functions of these occurring in the selection
state.
We must add a note that the "Router State Filtering" only deals with
the packet treatment part of the definition.
Easier way out: put "or" in the definition. That is:
Filtering: a filter is a selection operation that selects a
packet deterministically based on the packet content, or its
treatment, or functions of these occurring in the selection
state.