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On Wed, Jun 10, 2020 at 15:07, Slawek Kaplonski <skaplons at redhat.com> 
wrote:
> 

[snip]

> * Second topic was about updating minimum bandwdith for the ports. We 
> agreed
>   that this should be done on Neutron side and Neutron will update 
> resource
>   allocation directly in Placement. There is no need to involve Nova 
> in this
>   process. We also decided that we will not allow update values of 
> the existing,
>   already associated rules in the QoS Policy. The only possible way 
> to change
>   minimum bandwidth will be to update port to associate it with new 
> QoS Policy.

I've filed a Neutron RFE [1] outlining the Neutron - Placement 
interaction needed for this work. Lajos or Bence will detail the 
Neutron internal part of the RFE.

Cheers,
gibi

[1] https://bugs.launchpad.net/neutron/+bug/1882804

[snip]