[Bridge] [PATCH net-next] bridge: multicast to unicast

Felix Fietkau nbd at nbd.name
Tue Jan 3 13:15:29 UTC 2017


On 2017-01-02 20:32, Linus Lüssing wrote:
> Implements an optional, per bridge port flag and feature to deliver
> multicast packets to any host on the according port via unicast
> individually. This is done by copying the packet per host and
> changing the multicast destination MAC to a unicast one accordingly.
> 
> multicast-to-unicast works on top of the multicast snooping feature of
> the bridge. Which means unicast copies are only delivered to hosts which
> are interested in it and signalized this via IGMP/MLD reports
> previously.
> 
> This feature is intended for interface types which have a more reliable
> and/or efficient way to deliver unicast packets than broadcast ones
> (e.g. wifi).
> 
> However, it should only be enabled on interfaces where no IGMPv2/MLDv1
> report suppression takes place. This feature is disabled by default.
> 
> The initial patch and idea is from Felix Fietkau.
> 
> Cc: Felix Fietkau <nbd at nbd.name>
> Signed-off-by: Linus Lüssing <linus.luessing at c0d3.blue>
Please add Signed-off-by: Felix Fietkau <nbd at nbd.name>
in the next version, and maybe also From:

Thanks,

- Felix


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