[rbridge] Range of appllicability (was Re: TTL only - was RE: New fields in shim header?)

[Don Fedyk]

Hi Donald 

> -----Original Message-----
> 
> Hi,
>  
> Why not ask the question the other way? If Rbridges exist, 
> why would anyone want to use an old fashioned STP or RSTP 
> based bridge?  :-) Simplifying a lot, Rbridges make better 
> use of available links while various forms of spanning tree 
> work by turning off and thus wasting links. 

I think this is an oversimplifying statement. Rbridge leverages link
state for better plug and play use of network topologies.  This fucntion
is superior to STP or RSTP. But if you are engineering the bridged
network there are other options besides STP/RSTP and I don't see these
capabilities in Rbridge. 

Regards,
Don 

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