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Guscht
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Joined: Thu Jul 01, 2010 5:32 pm

How handles ROS overbooked guaranteed speed (limt-at)?

Wed Oct 05, 2022 12:20 am

Hi,

does anybody know how ROS handels overbooked guaranteed speeds (limit-at) in Simple Queues?

Example:
- Parent Queue: 10/50M
-- Child1: limit-at 10/50M
-- Child2: limit-at 10/50M

AFAIK both "childs" have now a guaranteed bandwith of 50M download - 100M in total.
But the parent and the physical connection provide only 50M.

Does ROS now:

- provide only the first Child 50M, because it is hierarchical "higher" than Child2
- or does ROS divide the bandwidth and both get 25M
- or do both get "virtually" 50M but due to the fact the physical connection providing only 50M, some kind of "anarchy" will develop
- or ??? I dont know

I think is is a quite common misconfig, due to "copy and forget".

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