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---- On Mon, 31 Dec 2001, Chuck Larrieu ([EMAIL PROTECTED]) 
wrote:

> One of the things I am getting around to in this post is DLSw 
over a
> token
> ring switch. DLSw is configured on a cisco router using 
bridging and a
> virtual ring which is created across a TCP network between 
peers.
> 
> router ----virtual_ring------router
>     |                                         |
>  TR_port                            TR_port
> 
> with the configuration of the TR port using the source-bridge 
set of
> commands source-bridge source-ring-number bridge-number
> target-ring-number
> 
> If I wanted to run DLSw across a 3920, then on my router ( 
whose token
> ring
> port is plugged into a 3920 ) I would use the source-bridge
> source-ring-number bridge-number target-ring-number comand. 
The source
> ring
> would be identical to the TrCRF ring, the bridge would be the 
TrBRF, and
> the
> target ring would be the DLSw virtual ring, as confgured 
under DLSw. Is
> that
> correct?
> 

If I understand what you're doing, then the bridge number 
should actually be the bridge number of the router itself.  It 
is a bridge between the real ring, the TrCRF in this case, and 
the virtual ring so it needs a bridge number.

The router would not need to be directly aware of the TrBRF.  
The bridge number of the BRF would show up in incoming RIFs on 
that port, however, assuming traffic had to cross from on TrCRF 
to another before entering the router.

Let me know if I'm misunderstand your question.  I have a 
tendency to answer questions that people aren't actually 
asking.  :-)

John




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