Manual install & Configuration in Neutron incorrect vni_ranges leads to error

[sharif uddin]

This bug tracker is for errors with the documentation, use the following as a template and remove or add fields as you see fit. Convert [ ] into [x] to check boxes:

- [x] This doc is inaccurate in this way: incorrect vni_ranges specified prevents self service networks to be created. errors with `Invalid input for operation: Segmentation ID should be lower or equal to 4095`
- [ ] This is a doc addition request.
- [x] I have a fix to the document that I can paste below including example: input and output.

[ml2_type_geneve]
...
vni_ranges = 1:4000

-----------------------------------
Release: 20.2.1.dev84 on 2022-03-01 21:07:17
SHA: 656d4154013a943ca6eb97a49332fe8ac5fae84a
Source: https://opendev.org/openstack/neutron/src/doc/source/install/ovn/manual_install.rst
URL: https://docs.openstack.org/neutron/yoga/install/ovn/manual_install.html

[Lajos Katona (lajos-katona)]

Hi, this doc change suggestion is related to https://bugs.launchpad.net/neutron/+bug/1997955 am I right?

[sharif uddin (shorif2000)]

Hello

Yes. I didnt understand the respond on that ticket.

This is how i managed to fix it.

Regarding ovn installation everything is default except for changes
mentioned in yoga openstack docs.

On Mon, 28 Nov 2022, 11:05 Lajos Katona, <email address hidden> wrote:

> Hi, this doc change suggestion is related to
> https://bugs.launchpad.net/neutron/+bug/1997955 am I right?
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1998085
>
> Title:
> Manual install & Configuration in Neutron incorrect vni_ranges leads
> to error
>
> Status in neutron:
> New
>
> Bug description:
>
> This bug tracker is for errors with the documentation, use the
> following as a template and remove or add fields as you see fit.
> Convert [ ] into [x] to check boxes:
>
> - [x] This doc is inaccurate in this way: incorrect vni_ranges specified
> prevents self service networks to be created. errors with `Invalid input
> for operation: Segmentation ID should be lower or equal to 4095`
> - [ ] This is a doc addition request.
> - [x] I have a fix to the document that I can paste below including
> example: input and output.
>
>
> [ml2_type_geneve]
> ...
> vni_ranges = 1:4000
>
>
> -----------------------------------
> Release: 20.2.1.dev84 on 2022-03-01 21:07:17
> SHA: 656d4154013a943ca6eb97a49332fe8ac5fae84a
> Source:
> https://opendev.org/openstack/neutron/src/doc/source/install/ovn/manual_install.rst
> URL:
> https://docs.openstack.org/neutron/yoga/install/ovn/manual_install.html
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/neutron/+bug/1998085/+subscriptions
>
>

[Rodolfo Alonso (rodolfo-alonso-hernandez)]

Hello Sharif:

You are using both Geneve and VXLAN. As commented in [1], this is a known limitation in the ML2/OVN backend [2]. This limitation applies for VXLAN type networks only.

Regards.

[1]https://bugs.launchpad.net/neutron/+bug/1997955/comments/3
[2]https://mail.openvswitch.org/pipermail/ovs-dev/2020-September/375189.html

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/c/openstack/neutron/+/865960

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/openstack/neutron/+/865960
Committed: https://opendev.org/openstack/neutron/commit/1a9ae924fd8479485b8e6289a3b015c228967097
Submitter: "Zuul (22348)"
Branch: master

commit 1a9ae924fd8479485b8e6289a3b015c228967097
Author: Rodolfo Alonso Hernandez <email address hidden>
Date: Fri Nov 18 17:40:41 2022 +0100

    Add VXLAN support reference in the OVN installation guide

    That includes the limitation of ML2/OVN for VXLAN networks to
    a maximum of 4096 networks and the explanation.

    Closes-Bug: #1998085
    Change-Id: I0b0ba353c219a49acd80edecd0997d1f653b0192

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/neutron 22.0.0.0rc1 release candidate.