On 2011-03-10 9:22 AM, Bastian Bittorf wrote:
> IGMP-Snooping
> Reply-To: 
> X-Editor: vi http://ex-vi.sourceforge.net/
> 
> There is an open Ticket
> https://dev.openwrt.org/ticket/7977
> 
> With some more functions.
> I really would like to see this applied.
> Another wish/idea:
> 
> Support IGMP-snooping. This would make it
> possible to use it together with IP-TV and
> a bridged LAN/WIFI without disturbing WIFI
> and also lowering CPU-load.
> 
> Datasheet on Page 69 says:
> "Switch bit 6 from Switch Global Control Register (SGCR) from 0 to 1"
> 
> http://realtek.info/pdf/rtl8366_8369_datasheet_1-1.pdf
Have you actually tested this to see if it does something useful?
I usually don't trust cheap consumer device switches to implement such
higher layer hacks properly without causing side-effects.
By the way, in newer kernels the Linux bridge code also does IGMP
snooping and this could be extended to support handling multicast stream
traffic on wireless interfaces in a much more useful way (e.g. turning
it into unicast where it makes sense).

- Felix
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