.. _DDS_WireProtocolQosPolicy: ../../../api_c/html/structDDS__WireProtocolQosPolicy.html
.. _rtps_well_known_ports: ../../../api_c/html/structDDS__WireProtocolQosPolicy.html
Transport Port Number
---------------------
The port number of a locator is not directly configurable. Rather, it is
configured indirectly by the DDS_WireProtocolQosPolicy_ (rtps_well_known_ports_)
of the *DomainParticipant's* QoS, where a well-known, interoperable RTPS port number
is assigned.