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1 | initial version |
Unless you're forcing these topics to be "passed" (are you using a multimaster setup?) no traffic should be generated unless there are actual subscribers. No subscribers -> no data transfer.
You'll have to provide more information about what it is exactly you are doing, as right now, this is unanswerable (and should actually not even be a problem).
2 | No.2 Revision |
Unless you're forcing these topics to be "passed" (are you using a multimaster setup?) no traffic should be generated unless there are actual subscribers. No subscribers -> no data transfer.
You'll have to provide more information about what it is exactly you are doing, as right now, this is unanswerable (and should actually not even be a problem).
Edit: this topic comes up every now and then. For (future) readers: if there are no subscribers to a topic, no data is being transferred. It doesn't matter whether that is on the same machine, one the same network, on another network or to the other side of the world.
3 | No.3 Revision |
Unless you're forcing these topics to be "passed" (are you using a multimaster setup?) no traffic should be generated unless there are actual subscribers. No subscribers -> no data transfer.
You'll have to provide more information about what it is exactly you are doing, as right now, this is unanswerable (and should actually not even be a problem).
As to your screenshot: the Topic Monitor actually subscribes to topics to calculate bandwidth and rate. So that would immediately mean you create a subscriber. Same as rostopic hz
and rostopic bw
.
Edit: this topic comes up every now and then. For (future) readers: if there are no subscribers to a topic, no data is being transferred. It doesn't matter whether that is on the same machine, one the same network, on another network or to the other side of the world.
4 | No.4 Revision |
Unless you're forcing these topics to be "passed" (are you using a multimaster setup?) no traffic should be generated unless there are actual subscribers. No subscribers -> no data transfer.
You'll have to provide more information about what it is exactly you are doing, as right now, this is unanswerable (and should actually not even be a problem).
As to your screenshot: the Topic Monitor actually subscribes to topics to calculate bandwidth and rate. So that would immediately mean you create a subscriber. Same as rostopic hz
and rostopic bw
.
Edit: this topic comes up every now and then. For (future) readers: if there are no subscribers to a topic, no data is being transferred. It doesn't matter whether that is on the same machine, one on the same network, on another network or to the other side of the world.