Super client profile and restrict to UDPv4 only

[MiguelCompany]

Copied from #2624 (comment)

Hey there!

How can I configure a Fast RTPS profile such as below?

• clients will only consume UDPv4
• it will be super client
• it will use discovery server

Here is the profile I use:

<?xml version='1.0' encoding='UTF-8' ?>
<dds>
	<profiles
		xmlns='http://www.eprosima.com/XMLSchemas/fastRTPS_Profiles'>
		<participant profile_name='super_client_profile' is_default_profile='true'>
			<rtps>
				<builtin>
					<discovery_config>
						<discoveryProtocol>SUPER_CLIENT</discoveryProtocol>
						<discoveryServersList>
							<RemoteServer prefix='44.53.00.5f.45.50.52.4f.53.49.4d.41'>
								<metatrafficUnicastLocatorList>
									<locator>
										<udpv4>
											<address>10.244.0.221</address>
											<port>11811</port>
										</udpv4>
									</locator>
								</metatrafficUnicastLocatorList>
							</RemoteServer>
						</discoveryServersList>
					</discovery_config>
				</builtin>
			</rtps>
		</participant>
	</profiles>
</dds>

This profile is already working connecting to a discovery server. I want this profile to support messages only using UDPv4. I would be appreciated if anyone could help me on this.

[MiguelCompany]

@tunahanertekin Additionally to what you already did, you just need to specify the transports you want to use.

This is done with the <transport_descriptors> tag, and then using <userTransports> inside participant.rtps.
Setting <useBuiltinTransports>false</useBuiltinTransports> is also required so no other transport is automatically created when creating the participant.

<?xml version='1.0' encoding='UTF-8' ?>
<dds>
    <profiles
        xmlns='http://www.eprosima.com/XMLSchemas/fastRTPS_Profiles'>
        
        <!-- UDPv4 Transport profile -->
        <transport_descriptors>
            <transport_descriptor>
                <transport_id>udp_transport</transport_id>
                <type>UDPv4</type>
            </transport_descriptor>
        </transport_descriptors>
        
        <participant profile_name='super_client_profile' is_default_profile='true'>
            <rtps>
                <!-- Use user defined UDPv4 transport -->
                <userTransports>
                    <transport_id>udp_transport</transport_id>
                </userTransports>
                <!-- Disable builtin transports -->
                <useBuiltinTransports>false</useBuiltinTransports>

                <!-- Connect to discovery server as SUPER_CLIENT -->
                <builtin>
                    <discovery_config>
                        <discoveryProtocol>SUPER_CLIENT</discoveryProtocol>
                        <discoveryServersList>
                            <RemoteServer prefix='44.53.00.5f.45.50.52.4f.53.49.4d.41'>
                                <metatrafficUnicastLocatorList>
                                    <locator>
                                        <udpv4>
                                            <address>10.244.0.221</address>
                                            <port>11811</port>
                                        </udpv4>
                                    </locator>
                                </metatrafficUnicastLocatorList>
                            </RemoteServer>
                        </discoveryServersList>
                    </discovery_config>
                </builtin>
            </rtps>
        </participant>
    </profiles>
</dds>

[tunahanertekin]

Thanks for the quick reply! I will post my results here as soon as I try this profile configuration.