[rbridge] Orphaned endnodes with partitioned VLANs on a cloud

Anoop Ghanwani anoop at brocade.com
Thu Dec 6 19:43:07 PST 2007


 

> -----Original Message-----
> From: Russ White [mailto:riw at cisco.com] 
> Sent: Thursday, December 06, 2007 10:37 PM
> To: Anoop Ghanwani
> Cc: Radia Perlman; Developing a hybrid router/bridge.
> Subject: Re: [rbridge] Orphaned endnodes with partitioned 
> VLANs on a cloud
> 
> -----BEGIN PGP SIGNED MESSAGE-----
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> 
> 
> > Probably not...if the VLAN number selected for that hello 
> happens to 
> > be the one that has no connectivity on that link, then 
> hello doesn't 
> > make it through but the problem remains on all the other VLANs.
> 
> That's no different than what is already proposed--sending a 
> single vlan with a list of all the attached vlans. Hence my 
> original post--there's no point in doing something that 
> doesn't solve the problem it's supposed to address.
> 
> Or is it important how well is scales while it's failing? :-)

No.  In this case the failure is a catastrophic
one.  In the case where the single VLAN hello failed
the failure was not catastrophic.  The problem is
detected and one of the RBs disables forwarding
from that LAN.

Anoop



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