Documentation

RTI Connext 7.1.0

Connext 7.1.0 is a feature release. Click here for the latest long-term support (LTS) release, Connext DDS 6.1 LTS.

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Core Libraries | Infrastructure Services | Tools | Transports | Observability Framework | Limited Bandwidth Plugins | RTI Connext Secure | RTI Log Parser (Experimental) | Third-Party Software | Wireshark and RTPS |  RTI Connext Micro 3.0.3 | RTI Connext Micro 2.4.14.1 | RTI Connext Drive 2.0 | RTI DDS Toolkit for LABVIEW 3.1.1 | RTI Perftest 4.1 | RTI Connext TSS 3.1.2 

This site contains the most up-to-date documentation; it may be more current than what is in your installation.

Core Libraries

 

The Core Libraries contain APIs that allow you to communicate and share data across applications.

Getting Started

If you are new to RTI Connext, start here. The RTI Connext Getting Started Guide will teach you core concepts and guide you through writing your first application examples.

Platforms and Building Applications

The Platform Notes includes platform-specific instructions on compiling, linking, and running Connext applications. It also describes which features are supported for each platform.

Other documentation includes this addendum to the Getting Started Guide:

User's Manual

To learn about a Connext concept in depth, consult the Core Libraries User's Manual. This comprehensive guide is the definitive reference for the SDK.

The Extensible Types Guide is an important addition to the Data Types chapter in the Core Libraries User's Manual.

API Reference

Once you begin active development, you will want to consult the extensive API documentation. Connext supports C, C++, Java, and .NET (C# and C++/CLI). 

Release Notes and Migration Guide

For an overview of new features and bug fixes in this release, see these documents:

For information on migration and compatibility with previous releases, consult the Migration Guide:

RTI Code Generator

Code Generator creates the code needed to define and register a user data type with Connext.

RTI Connext XML-Based Application Creation

XML-Based Application Creation simplifies the development and programming of Connext applications. It allows you to specify in XML format all the aspects of a DDS system.

XML-Based Application Creation can also be used to configure Connext Micro applications, through the Micro Application Generator (MAG) utility.

RTI Distributed Logger

Distributed Logger is a library that enables applications to publish their log messages to Connext. The log message data can be visualized with RTI Monitor and RTI Admin Console. Or you can write your own visualization tool.

QoS and Property Quick Reference Guides

Connext provides comprehensive support for configurability and Quality of Service (QoS). Applications can take advantage of this to prioritize the different data topics and message-flows, control the amount of history maintained by the middleware caches, ensure reliable delivery of information, accommodate low-bandwidth or high-latency links, etc. This cheat-sheet provides a convenient summary of all the QoS policies:

The Property QoS Policy stores name/value (string) pairs that can be used to configure certain Connext parameters that are not exposed through formal QoS policies. This cheat-sheet summarizes all the Connext properties:

Builtin QoS Profiles

Several QOS Profiles are built into the Connext core libraries and can be used as starting points when configuring QoS for your Connext applications. The default builtin profiles are here:

XSD Schema

Connext provides XSD files that describe the XML format of types, QoS profiles, and XML-based Application Creation configuration files.

RTI Ada Language Support

Note: Release 7.1.0 does not include Ada Language Support. Use Connext 6.1 LTS for Ada support.

For more information on 6.1 LTS Ada Language Support, see these documents:

Infrastructure Services

RTI Routing Service

Routing Service is an out-of-the-box solution for integrating and scaling DDS-based applications across domains, LANs, and WANs, including firewall and NAT traversal.

If you want to build your own custom adapters so that you can bridge custom protocols and input/output streams to Connext, see these documents:

RTI Recording Service

Recording Service can reliably record large amounts of real-time data without having prior knowledge of the data types or topics in the system. You can also replay the recorded data to replicate the original data flow.

If you want to build your own plugins to read and write to custom storage, see these documents:

RTI Persistence Service

Persistence Service saves data from Connext publishing applications in memory or permanent storage.

RTI Cloud Discovery Service

Cloud Discovery Service is a standalone application that enables deployment of Connext applications in dynamic environments where UDP/IP multicast is not available. It must be downloaded and installed separately.

If you want to programmatically control Cloud Discovery Service execution, see the following API documentation:

RTI Web Integration Service

Web Integration Service uses a simple, standards-based interface to provide a transparent bridge between web-based services and unmodified DDS applications. It must be downloaded and installed separately.

Tools

RTI Launcher

Launcher provides a convenient graphical interface for installing, configuring, and running Connext components.

RTI Administration Console

Admin Console provides a graphical interface to visualize data as well as debug and administer Connext applications.

RTI DDS Spy and DDS Ping

DDS Spy is a convenient command-line tool for peeking at the data in your DDS system and debugging when your applications are not communicating. It returns data in a text format rather than the graphical format of Admin Console.

DDS Ping is another command-line tool that uses Connext to send and receive preconfigured “Ping” messages to other rtiddsping applications. It can be used to test network/computer configuration and environment settings that affect the operation of Connext.

RTI Monitor

Monitor provides a graphical interface showing QoS settings as well as numerous metrics including resource and protocol statistics.

RTI Shapes Demo

Shapes Demo is a graphical application that powerfully demonstrates the capabilities of Connext without requiring any programming.

RTI System Designer

System Designer allows you to graphically design and configure Connext systems. Think of it as a user interface (UI) to XML-Based Application Creation.

RTI Connector (version 1.2.2)

Connector provides a set of simplified APIs that enables you to quickly develop demos, proofs of concept, and test applications using a variety of scripting languages.

Transports

RTI Real-Time WAN Transport

Real-Time WAN Transport is a Connext transport plugin that enables communication over wide area networks (WANs) using UDP as the underlying IP transport-layer protocol. It must be downloaded and installed separately.

RTI TCP Transport

TCP Transport enables participant discovery and data exchange using the TCP protocol (either on a local LAN, or over the public WAN). It is included with Connext Professional.

RTI TLS Support

TLS Support is an optional product for use with TCP Transport. It must be downloaded and installed separately. 

Observability Framework

The RTI Connext Observability Framework is a holistic solution that provides deep visibility into the current and past states of your Connext applications using telemetry data. This visibility makes it easier to proactively identify and resolve potential issues. The Observability Framework must be downloaded and installed separately. 

Limited Bandwidth Plugins

RTI Limited Bandwidth Plugins

The Limited Bandwidth Plugins are designed to overcome situations where the network is constrained by low or limited bandwidth, intermittent connections, or other network-related issues. It must be downloaded and installed separately.

RTI Limited Bandwidth Endpoint Discovery Plugin

The Limited Bandwidth Endpoint Discovery (LBED) plugin is included with some bundles, including Connext Professional. With LBED, information about the endpoints is obtained from an XML file instead of being sent dynamically over the network. This method can reduce discovery time and network traffic. However, for LBED to work, all the endpoints must be known ahead of time and described in an XML file. 

RTI Connext Secure

Connext Secure is Connext Professional plus the RTI Security Plugins.

The Security Plugins include a robust set of security capabilities, including authentication, encryption, access control, and logging.

RTI Log Parser (Experimental)

RTI Log Parser is a command-line tool that processes and enhances Connext log messages, making it easier to debug applications. For information on using this experimental feature, see this document:

Third-Party Software

For information on the third-party software used in RTI's products, see these documents:

 

Wireshark and RTPS

Wireshark and RTPS (March 2023)

Wireshark® is a network-packet analyzer that supports many network protocols, including Real-Time Publish-Subscribe (RTPS), the wire protocol used by RTI Connext DDS®. The following documentation details how to use Wireshark to capture and analyze RTPS packets from Connext DDS applications. 

RTI Connext Micro 3.0.3

RTI Connext Micro provides a small-footprint, modular messaging solution for resource-limited devices that have limited memory and CPU power, and may not even be running an operating system. It provides the communications services that developers need to distribute time-critical data. Additionally, RTI Connext Micro is designed to become a certifiable component in high-assurance systems.

RTI Connext Micro benefits include:

  • Accommodations for resource-constrained environments
  • Modular and user extensible architecture
  • Designed to be a certifiable component for safety-critical systems
  • Seamless interoperability with Connext DDS and Connext Messaging

Documentation Overview

Downloads for RTI Connext Micro 3.0.3

  • The latest documentation can be downloaded from here and extracted on-top of an existing RTI Connext Micro 3.0.3 installation.

RTI Connext Micro 2.4.14.1

RTI Connext Micro provides a small-footprint, modular messaging solution for resource-limited devices that have limited memory and CPU power, and may not even be running an operating system. It provides the communications services that developers need to distribute time-critical data. Additionally, RTI Connext Micro is designed to become a certifiable component in high-assurance systems.

RTI Connext Micro benefits include:

  • Accommodations for resource-constrained environments
  • Modular and user extensible architecture
  • Designed to be a certifiable component for safety-critical systems
  • Seamless interoperability with Connext DDS and Connext Messaging

Documentation Overview

RTI Connext Drive 2.0.1

RTI Connext Drive is RTI’s automotive grade communication framework, enabling the automotive ecosystem to comply with the portability, evolvability, flexibility, and integrability requirements of the industry. Connext Drive provides the safety and security needed to build for the future while being the only framework supporting AUTOSAR and ROS2.

Documentation Overview

For additional information on the RTI products included in this bundle, see also:

RTI DDS Toolkit for LabVIEW 3.1.1

The RTI DDS Toolkit for LabVIEW provides a high performance and highly scalable software communication infrastructure. You can use it to distribute real-time data between LabVIEW applications as well as between LabVIEW and other applications, such as those written in C, C++, C# and Java. It allows you to reliably scale systems to hundreds or even thousands of applications distributed across local- and wide-area networks.

RTI Perftest 4.1

RTI Perftest is a command-line application that measures the latency and throughput of very configurable scenarios that use RTI Connext DDS middleware to send messages.

Download the latest stable release here.

RTI has used RTI Perftest to benchmark Connext DDS with a wide variety of latency and throughput tests. See the results in RTI Connext Performance Benchmarks.

RTI Connext TSS 3.1.2

For information on using TSS with Connext DDS, consult the following documentation:
 
       • User's Manual
       • Getting Started Guide
       • Release Notes
 
 

Connext Professional Releases

Connext Micro Releases

Connext Drive Releases

Toolkit for LabVIEW Releases

Perftest Releases

TSS Releases

Wireshark and RTPS Releases