Hello Damien:

There is no default value for QoS. If the router GW port is in a network with a QoS policy, once this feature [1] is implemented, the GW port will inherit the QoS from this network.

This is the same behaviour as with fixed ports: when a port has no QoS policy but the network has, the network QoS will apply on this port. This feature [1] was requested by several customers expecting to have a uniform API between L2 and L3 QoS.

Regards.

[1]https://bugs.launchpad.net/neutron/+bug/1950454

On Tue, Nov 23, 2021 at 8:27 PM Damien Rannou <damien.rannou@ovhcloud.com> wrote:
Yes exactly
Just On point that I’m not sure: what append if the client ask for a router update with —no-qos option ?
Will it remove the QOS completely or just re apply the default value ?

Damien

Le 22 nov. 2021 à 18:45, Lajos Katona <katonalala@gmail.com> a écrit :

Hi,
There is an RFE to inherit network QoS:

Hope this covers your usecase.

Lajos Katona (lajoskatona)

Damien Rannou <damien.rannou@ovhcloud.com> ezt írta (időpont: 2021. nov. 22., H, 17:23):
Hello
We are currently playing with QOS on L3 agent, mostly for SNAT, but it can apply also on FIP.
Everything is working properly, but I’m wondering if there is a way to define a « default » QOS that would be applied on Router creation,
but also when the user is setting « no_qos » on his router.

On a public cloud environnement, we cannot let the customers without any QOS limitation.

Thanks !
Damien