Madrid, October 2021

eProsima and Sony are working together to develop the Content Filtered Topics feature in Fast DDS that will be available to use in ROS 2.

Content Filtered Topics is a Fast DDS feature that allows users to get only the data they want to receive when subscribing to a topic, thus helping to conserve network resources. In other words, a Content Filtered Topic is a Topic with filtering capabilities that allows users to segment under certain criteria the subset of data of their interest when subscribing to a Topic.



The benefits of using Content Filtered Topics are:

  • Conserving network resources
  • Receiving only the data of interest

eProsima and Sony are currently working to develop the first source Content Filtered Topics feature for Fast DDS, which will have a first release that provides content filter capabilities for the Reader by end of 2021, and the final one for the Writer by Q1 2022.



eProsima is an SME company focused on networking middleware with special attention to the OMG (Object Management Group) standard called Data Distribution Service for real-time systems (DDS). The company’s DDS middleware solutions find special interest in the robotic, IoT and automotive sector, being Fast DDS a middleware implementation for larger robotic systems like ROS 2 and Micro XRCE-DDS the default middleware for micro-ROS, a robot operating system for microcontrollers.



Sony is a worldwide renowned entertainment company with roots in Japan. During its more than 70 years of existence Sony has proven its worth and created a market leader reputation developing countless product innovations.

Till this day, Sony constantly continues its investigations in a variety of sectors, one of them being robotics and artificial intelligence (AI).



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