[openstack-dev] [Neutron] VMware networking

Armando M. armamig at gmail.com
Mon Jun 30 15:18:50 UTC 2014

Hi Gary,

Thanks for sending this out, comments inline.

On 29 June 2014 00:15, Gary Kotton <gkotton at vmware.com> wrote:

>  Hi,
>  At the moment there are a number of different BP’s that are proposed to
> enable different VMware network management solutions. The following specs
> are in review:
>    1. VMware NSX-vSphere plugin: https://review.openstack.org/102720
>    2. Neutron mechanism driver for VMWare vCenter DVS network creation:
>    https://review.openstack.org/#/c/101124/
>    3. VMware dvSwitch/vSphere API support for Neutron ML2:
>    https://review.openstack.org/#/c/100810/
> In addition to this there is also talk about HP proposing some for
> of VMware network management.

I believe this is blueprint [1]. This was proposed a while ago, but now it
needs to go through the new BP review process.

[1] - https://blueprints.launchpad.net/neutron/+spec/ovsvapp-esxi-vxlan

>  Each of the above has specific use case and will enable existing vSphere
> users to adopt and make use of Neutron.
>  Items #2 and #3 offer a use case where the user is able to leverage and
> manage VMware DVS networks. This support will have the following
> limitations:
>    - Only VLANs are supported (there is no VXLAN support)
>    - No security groups
>    - #3 – the spec indicates that it will make use of pyvmomi (
>    https://github.com/vmware/pyvmomi). There are a number of disclaimers
>    here:
>       - This is currently blocked regarding the integration into the
>       requirements project (https://review.openstack.org/#/c/69964/)
>       - The idea was to have oslo.vmware leverage this in the future (
>       https://github.com/openstack/oslo.vmware)
> Item #1 will offer support for all of the existing Neutron API’s and there
> functionality. This solution will require a additional component called NSX
> (https://www.vmware.com/support/pubs/nsx_pubs.html).
It's great to see this breakdown, it's very useful in order to identify the
potential gaps and overlaps amongst the various efforts around ESX and
Neutron. This will also ensure a path towards a coherent code contribution.

 It would be great if we could all align our efforts and have some clear
> development items for the community. In order to do this I’d like suggest
> that we meet to sync and discuss all efforts. Please let me know if the
> following sounds ok for an initial meeting to discuss how we can move
> forwards:
>  - Tuesday 15:00 UTC
>  - IRC channel #openstack-vmware

I am available to join.

>  We can discuss the following:
>    1. Different proposals
>    2. Combining efforts
>    3. Setting a formal time for meetings and follow ups
> Looking forwards to working on this stuff with the community and providing
> a gateway to using Neutron and further enabling the adaption of OpenStack.

I think code contribution is only one aspect of this story; my other
concern is that from a usability standpoint we would need to provide a
clear framework for users to understand what these solutions can do for
them and which one to choose.

Going forward I think it would be useful if we produced an overarching
blueprint that outlines all the ESX options being proposed for OpenStack
Networking (and the existing ones, like NSX - formerly known as NVP, or
nova-network), their benefits and drawbacks, their technical dependencies,
system requirements, API supported etc. so that a user can make an informed
decision when looking at ESX deployments in OpenStack.

>  Thanks
> Gary

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