[neutron] default QOS on L3 gateway

Rodolfo Alonso Hernandez ralonsoh at redhat.com
Wed Nov 24 09:07:07 UTC 2021

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.



On Tue, Nov 23, 2021 at 8:27 PM Damien Rannou <damien.rannou at ovhcloud.com>

> 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 at gmail.com> a écrit :
> Hi,
> There is an RFE to inherit network QoS:
> https://bugs.launchpad.net/neutron/+bug/1950454
> The patch series:
> https://review.opendev.org/q/topic:%22bug%252F1950454%22+(status:open%20OR%20status:merged)
> Hope this covers your usecase.
> Lajos Katona (lajoskatona)
> Damien Rannou <damien.rannou at 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
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