Contains the list of the ports in the Uplink Module. The representation is a bit map. Each octet within the value of this object specifies a set of eight ports, with the first octet specifying ports 1 through 8, the second octet specifying ports 9 through 16, etc. Within each octet, the least significant bit represents the lowest numbered port, and the most significant bit represents the highest numbered port. Thus, each port of the Uplink Module is represented by a single bit within the value of this object. If that bit has a value of <1> then that port is exists in the Uplink Module. The port is not exists if its bit has a value of <0>.