How DDS topic name configure like ROS2 prefix Topic?

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Hi, All.

This question is related this topic.

For communication between general DDS and ROS2, prefix topic naming for ROS2 should be done.

However, as described in the ROS2 design doc, the front slash (/) is considered a prefix. (This was checked via python)

While all planned prefixes consist of two characters, i.e. rX, anything proceeding the first namespace separator, i.e. /, can be considered part of the prefix. The standard reserves the right to use up to 8 characters for the prefix in case additional prefix space is needed in the future. - ROS2.0 design doc

Because of this, it does not appear in the "ros2 topic list". I typed the Topic name as "rt/chatter", but it appears in python as "/rt/chatter".

How can I fix it?