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This is a work we are doing in Dragonflow and is relatively simple to
implement leveraging
Dragonflow current infrastructure and reactive local controller.

This will significantly reduce duplicating packets for IGMP aware VMs. and
hence
reduce multicast load.

We would love to help and bring this API to Neutron core, anyone that is
interested
is welcome to check the spec Omer published.  feel free to join us in our
next IRC
channel where we would talk about this design.

Thanks
Gal.

On Wed, Feb 10, 2016 at 4:59 PM, Omer Anson <omer.anson at toganetworks.com>
wrote:

> Hello,
>
> We're in the process of adding IGMP and multicast support to
> Dragonflow[1]. The
> added feature will route multicast packets only to relevant and registered
> VMs,
> compute nodes, and handle IGMP packets.
>
> This feature has some configuration parameters for subnets and router
> interfaces.
> Some of these parameters are, e.g. if the subnet supports multicast, and
> the
> Query Interval of the router.
>
> Is anyone else working on such a feature? Are there any specific parameters
> that should be included, in addition to multicast enable/disable on
> subnets,
> and the parameters in Section 8 in [2]?
>
> Thanks,
> Omer Anson.
>
> [1] https://review.openstack.org/#/c/278400/
> [2] https://tools.ietf.org/html/rfc3376
>
>
>
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-- 
Best Regards ,

The G.
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