A table to control the collection of mappings from network
layer address to physical address to interface.
Note that this is not like the typical RMON
controlTable and dataTable in which each entry creates
its own data table. Each entry in this table enables the
discovery of addresses on a new interface and the placement
of address mappings into the central addressMapTable.
Implementations are encouraged to add an entry per monitored
interface upon initialization so that a default collection
of address mappings is available.