Description: The list of physical switch input ports which further qualifies an IP flow. This object is an octet string with the MSB of octet 0 indicating port 0 and LSB indicating port 7. Similarly, the MSB of octet 1 indicates port 8 and it's LSB indicates port 15 and so on. The port numbers are 0-based. This object has no meaning for rules defined on physical ports that are not associated with an IP flow. Port based rules can be defined by assigning a non zero value to extremeQosRuleInPort. Any attempt to set this value without specifying the source/destination address range and/or source/destination l4 port range will be rejected by the agent. For IP flows that apply to all physical ports in the switch, this will be a zero length octet string.