ROS Resources: Documentation | Support | Discussion Forum | Index | Service Status | ros @ Robotics Stack Exchange

Attention: Answers.ros.org is deprecated as of August the 11th, 2023. Please visit robotics.stackexchange.com to ask a new question. This site will remain online in read-only mode during the transition and into the foreseeable future. Selected questions and answers have been migrated, and redirects have been put in place to direct users to the corresponding questions on Robotics Stack Exchange. Additional details are available here.

0

On what factors is the communication protocol selected while establishing a Topic ?

asked 2018-04-16 09:50:11 -0500

aks
667 ●85 ●95 ●102

On what factors is the communication protocol selected ? be it TCP or UDP. Are there some other protocols supported as well ?

edit retag flag offensive close merge delete

1 Answer

Sort by » oldest newest most voted

1

answered 2018-04-16 10:36:32 -0500

gvdhoorn
86574 ●283 ●1432 ●1054 http://cor.tudelft.nl/

updated 2018-04-17 02:48:41 -0500

Note: this only answers the question in the context of ROS 1.

On what factors is the communication protocol selected ? be it TCP or UDP

Default is TCP (ie: reliable).

Unless user specifies the unreliable transport hint.

Are there some other protocols supported as well ?

No, not by default.

There are some alternative transports available, but you'd have to install those yourself (they're old, but see ethzasl_message_transport fi).

See also ROS/Technical Overview - Topic Transports.

edit flag offensive delete link

Comments

@gvdhoorn : Then isnt ROS similar to the ROS2 QoS in respect to the Communication Protocol ? Both can either select reliablity (TCP) or Best Effort (UDP) ?

aks ( 2018-04-18 04:12:13 -0500 )edit

Well .. they're similar like a car is similar to a bike: both have wheels, but I wouldn't say that a bike shares much of the other characteristics of a car.

If you really want to, you could see TCPROS and UDPROS as primitive forms of what DDS can do for you. But I wouldn't do that.

gvdhoorn ( 2018-04-18 04:15:45 -0500 )edit

Question Tools

2 followers

Stats

Asked: 2018-04-16 09:50:11 -0500

Seen: 141 times

Last updated: Apr 17 '18

Related questions

ROS Answers is licensed under Creative Commons Attribution 3.0 Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.

Powered by Askbot version 0.10.2