A table containing the set of ports to which frames
received from specific ports and containing the specific
packet string (AC, FC, destination address, source address,
as well as a window of 64 bytes of packet data beginning
at a data offset) of the corresponding filter number of
SdbTrTable are allowed to be forwarded. The value of '0'
in this table as the RcvPort is used to specify all ports
which are not already specified in this table for a
particular entry.