Setting this object to the value 'invalid(2)' has
the effect of invalidating the corresponding
entry in the ipFilterTable. That is, it
effectively disassociates the mapping identified
with said entry. It is an implementation-specific
matter as to whether the agent removes
an invalidated entry from the table. Accordingly,
management stations must be
prepared to receive from agents tabular
information corresponding to entries not
currently in use. Proper interpretation of such
entries requires examination of the relevant
ipFilterStatus object.