[rbridge] IS-IS per VLAN ?

[michsmit@cisco.com]

> -----Original Message-----
> From: rbridge-bounces at postel.org 
> [mailto:rbridge-bounces at postel.org] On Behalf Of Joe Touch
> 
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> 
> 
> Dino Farinacci wrote:
> >>>My guess. No reason, no computational logic. Just an estimate.
> > 
> > 
> >     Sorry I wasn't clear. I was referring to the number of 
> rBridge nodes, so we
> >     can understand how both the core-switch and edge-switch 
> network needs to 
> >     scale.
> 
> I would expect that a set of rbridge nodes could work 
> anywhere a single bridge could work, but that the overall 
> total number of devices on the
> L2 served by the system would not change substantially.

Does that definition of a "single bridge" include 802.1ah and metro
environments ?  

> 
> I.e., the primary goal of rbridge is better bandwidth between 
> nodes by the use of an alternative to a spanning tree inside 
> the rbridge campus, but it doesn't solve the problem that 
> it's still part of the L2 system into which it is plugged, 
> and so I wouldn't expect scale to change much
> - - EXCEPT where it is limited by spanning tree convergence.
> 
> Joe
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