[rbridge] Max Network size

[Guillermo Ibáñez]

Hello Joe,


More on maximum network size.
-So we can expect, for a network with one hundred thousand hosts, rbridges
with tables of that size. OK?
(No problem so far).
-Scalable routing between Rbridges: my understanding is that MAC addresses
are used for routing between them. Although the number of bridges will no be
too high (i.e thousands), I do not understand well the meaning of
"scalability of routing" as the flat addresses used do not permit route
aggregation. I did not follow the routing discussiong so may be I missed
something.

Rbridge types
- You mention "interior" Rbridges and "edge" Rbridges. Do you see any
functional differentiation between these two types ? In this case handled it
could be handled by self configuration (upon detection of hosts an interior
bridge becomes edge bridge). My understanding is that  there are no
functional differentiation of Rbridges, but engineering differences to
optimize between "core" Rbridges and "access" Rbridges. Right?  
 
Regards
Guillermo Ibañez

-----Mensaje original-----
De: rbridge-bounces at postel.org [mailto:rbridge-bounces at postel.org] En nombre
de Joe Touch
Enviado el: domingo, 01 de mayo de 2005 5:27
Para: Developing a hybrid router/bridge.
Asunto: Re: [rbridge] Max Network size




Guillermo Ibáñez wrote:
> I have a question:
>    What is the maximum network size (number of hosts) 
> required/expected
> in TRILL? May be it was already stated somewhere, I am not aware of it.
> Regards
> Guillermo Ibáñez

There is no limit of design; it is based on the capability of edge RBridges
to handle encapsulation tables, as well as of interior RBridges to have
scalable routing.

We expect to scale to numbers of hosts much higher than current bridges,
but it's hard to predict what the knee of the design curve will be (IMO).

Joe