[Bridge] [PATCH v2 net-next 0/6] Allow bridge to function in non-promisc mode

Vlad Yasevich vyasevic at redhat.com
Thu May 2 17:41:05 UTC 2013


On 05/02/2013 01:23 PM, Stephen Hemminger wrote:
> Doing research on another problem, I noticed that this would
> break user mode spanning tree (RSTP) code.
>
> The daemon assumes that bridge is promicious mode and therefore
> will receive all link-level multicast packets.
>

Just took another look at RSTP code and I see that's its using
a packet socket with filter to catch STP frames.

Would setting IFF_ALL_MULTI solve the problem?  STP packets
are all multicast.

Thanks
-vlad



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