[rbridge] Orphaned endnodes with partitioned VLANs on a cloud

[Anoop Ghanwani]

Rbridge core
|         |
RB1      RB2
|         |
+---------+

This is the case...RB1 and RB2 are connected
to the core on the top and at the bottom they
are supposedly edge ports.  However, these 
accidentally get connected.  What we have is 
loop and multicast traffic which gets sent
into the core by both RB1 and RB2.

Anoop

> -----Original Message-----
> From: Russ White [mailto:riw at cisco.com] 
> Sent: Thursday, December 06, 2007 9:54 PM
> To: Anoop Ghanwani
> Cc: Radia Perlman; Developing a hybrid router/bridge.
> Subject: Re: [rbridge] Orphaned endnodes with partitioned 
> VLANs on a cloud
> 
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> 
> > I'm not sure what you mean by parallel transit link.
> > Perhaps you can elaborate?
> 
> Any link over which traffic may pass from rbridge to rbridge, 
> rather than from rbridge to host.
> 
> > Passive interfaces won't work for RBridges because you could get 
> > really nasty loops and duplication of traffic.
> > These devices are different than routers.
> 
> Can you please post a specific example? I've posted specific 
> examples of where trying to infer one piece of state from 
> another results in very bad results--and, IMHO, it will 
> always be this way. If you're going to claim that there are 
> possible loops which cannot be resolved without inferring 
> this state, please post an example on the list.
> 
> :-)
> 
> Russ
> 
> - --
> riw at cisco.com CCIE <>< Grace Alone
> 
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