Detailed Description

Built-in transport plug-in using UDP/IPv4.

This transport plugin uses UDPv4 sockets to send and receive messages. It supports both unicast and multicast communications in a single instance of the plugin. By default, this plugin will use all interfaces that it finds enabled and "UP" at instantiation time to send and receive messages.

The user can configure an instance of this plugin to only use unicast or only use multicast, see ::DDS::UDPv4Transport_Property_t::unicast_enabled and ::DDS::UDPv4Transport_Property_t::multicast_enabled.

In addition, the user can configure an instance of this plugin to selectively use the network interfaces of a node (and restrict a plugin from sending multicast messages on specific interfaces) by specifying the "white" and "black" lists in the base property's fields (::DDS::Transport_Property_t::allow_interfaces_list, ::DDS::Transport_Property_t::deny_interfaces_list, ::DDS::Transport_Property_t::allow_multicast_interfaces_list, ::DDS::Transport_Property_t::deny_multicast_interfaces_list).

RTI Connext can implicitly create this plugin and register with the DDS::DomainParticipant if this transport is specified in DDS::TransportBuiltinQosPolicy.

To specify the properties of the builtin UDPv4 transport that is implicitly registered, you can specify the predefined property names in DDS::PropertyQosPolicy associated with the DDS::DomainParticipant. (see UDPv4 Transport Property Names in Property QoS Policy of Domain Participant). The default value is assumed on any unspecified property.

Note that all properties should be set before the transport is implicitly created and registered by RTI Connext. Any properties set after the builtin transport is registered will be ignored. See Built-in Transport Plugins for details on when a builtin transport is registered.

UDPv4 Transport Property Names in Property QoS Policy of Domain Participant

The following table lists the predefined property names that can be set in DDS::PropertyQosPolicy of a DDS::DomainParticipant to configure the builtin UDPv4 transport plugin.

*Property Names for UDPv4 Transport Plugin*
Property Name	Description
dds.transport.UDPv4.builtin.parent.address_bit_count	See ::DDS::Transport_Property_t::address_bit_count
dds.transport.UDPv4.builtin.parent.properties_bitmap	See ::DDS::Transport_Property_t::properties_bitmap
dds.transport.UDPv4.builtin.parent.gather_send_buffer_count_max	See ::DDS::Transport_Property_t::gather_send_buffer_count_max
dds.transport.UDPv4.builtin.parent.message_size_max	See ::DDS::Transport_Property_t::message_size_max
dds.transport.UDPv4.builtin.parent.allow_interfaces	See ::DDS::Transport_Property_t::allow_interfaces_list and ::DDS::Transport_Property_t::allow_interfaces_list_length. Interfaces should be specified as comma-separated strings, with each comma delimiting an interface. For example, 127.0.0.1,eth0
dds.transport.UDPv4.builtin.parent.deny_interfaces	See ::DDS::Transport_Property_t::deny_interfaces_list and ::DDS::Transport_Property_t::deny_interfaces_list_length. Interfaces should be specified as comma-separated strings, with each comma delimiting an interface. For example: 127.0.0.1,eth0
dds.transport.UDPv4.builtin.parent.allow_multicast_interfaces	See ::DDS::Transport_Property_t::allow_multicast_interfaces_list and ::DDS::Transport_Property_t::allow_multicast_interfaces_list_length. Interfaces should be specified as comma-separated strings, with each comma delimiting an interface. For example: 127.0.0.1,eth0
dds.transport.UDPv4.builtin.parent.deny_multicast_interfaces	See ::DDS::Transport_Property_t::deny_multicast_interfaces_list and ::DDS::Transport_Property_t::deny_multicast_interfaces_list_length. Interfaces should be specified as comma-separated strings, with each comma delimiting an interface. For example: 127.0.0.1,eth0
dds.transport.UDPv4.builtin.send_socket_buffer_size	See ::DDS::UDPv4Transport_Property_t::send_socket_buffer_size
dds.transport.UDPv4.builtin.recv_socket_buffer_size	See ::DDS::UDPv4Transport_Property_t::recv_socket_buffer_size
dds.transport.UDPv4.builtin.unicast_enabled	See ::DDS::UDPv4Transport_Property_t::unicast_enabled
dds.transport.UDPv4.builtin.multicast_enabled	See ::DDS::UDPv4Transport_Property_t::multicast_enabled
dds.transport.UDPv4.builtin.multicast_ttl	See ::DDS::UDPv4Transport_Property_t::multicast_ttl
dds.transport.UDPv4.builtin.multicast_loopback_disabled	See ::DDS::UDPv4Transport_Property_t::multicast_loopback_disabled
dds.transport.UDPv4.builtin.ignore_loopback_interface	See ::DDS::UDPv4Transport_Property_t::ignore_loopback_interface
dds.transport.UDPv4.builtin.ignore_nonrunning_interfaces	See ::DDS::UDPv4Transport_Property_t::ignore_nonrunning_interfaces
dds.transport.UDPv4.builtin.no_zero_copy	See ::DDS::UDPv4Transport_Property_t::no_zero_copy
dds.transport.UDPv4.builtin.send_blocking	See ::DDS::UDPv4Transport_Property_t::send_blocking
dds.transport.UDPv4.builtin.transport_priority_mask	See ::DDS::UDPv4Transport_Property_t::transport_priority_mask
dds.transport.UDPv4.builtin.transport_priority_mapping_low	See ::DDS::UDPv4Transport_Property_t::transport_priority_mapping_low
dds.transport.UDPv4.builtin.transport_priority_mapping_high	See ::DDS::UDPv4Transport_Property_t::transport_priority_mapping_high
dds.transport.UDPv4.builtin.send_ping	See ::DDS::UDPv4Transport_Property_t::send_ping
dds.transport.UDPv4.builtin.interface_poll_period	See ::DDS::UDPv4Transport_Property_t::interface_poll_period
dds.transport.UDPv4.builtin.reuse_multicast_receive_resource	See ::DDS::UDPv4Transport_Property_t::reuse_multicast_receive_resource
dds.transport.UDPv4.builtin.protocol_overhead_max	See ::DDS::UDPv4Transport_Property_t::protocol_overhead_max
dds.transport.UDPv4.builtin.public_address	See ::DDS::UDPv4Transport_Property_t::public_address