[rbridge] it's time to summarize things

[Joe Touch]

Radia Perlman wrote:
...
>> AFAICT, having an rbridge campus drop BPDUs makes sense only by
>> effectively considering the rbridge campus as the root of all trees, but
>> that presumes it is always _the_ root (that there is only one 'drops
>> BPDU' system per bridged LAN). Since there's no way to enforce that
>> assertion, it seems problematic.
>>
>> Joe
> 
> The above paragraph makes absolutely no sense to me.
> 
> Routers drop spanning tree messages, and the world winds up with
> lots of isolated spanning trees. The same thing happens with
> RBridges. If there were a problem with doing it this way,
> IP mixed with bridges would not work.


IP mixed with bridges breaks L2 broadcast - on purpose. I was assuming
that rbridges did NOT do this. Is this incorrect?

Joe

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