ros2 topic echo is not visible as node named _ros2cli_<id>

edit

Hi,

I was following https://docs.ros.org/en/galactic/Tuto... . I called command (I can see msg in terminal, so subscription is working):

ros2 topic echo /turtle1/cmd_vel

and after that I typed:

vagrant@vagrant:~$ ros2 node list -a

output was:

/_ros2cli_daemon_0
/rqt_gui_py_node_3242
/teleop_turtle
/turtlesim

My question is were is _ros2cli_<_id> node subscribed to /turtle1/cmd_vel topic ?

My env details:

uname -a
Linux vagrant 5.4.0-81-generic #91-Ubuntu SMP Thu Jul 15 19:09:17 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux

env | grep ROS
ROS_VERSION=2
ROS_PYTHON_VERSION=3
ROS_DOMAIN_ID=0
ROS_LOCALHOST_ONLY=0
ROS_DISTRO=galactic