Re: Frame-relay switch

Good evening Andy and team.

Andy - most of the practice labs I have gone through have multiple DLCIs
going to each router. These labs tell you to only use the DLCIs in the
diagram, and not all of the configured ones.

What the FR switch sends the router and what the router uses or is
configured for, may be different.

In your case, you can configure several DLCIs to R1, and then use the ones
you want to create point to point or multipoint FR access.

For example, let us say that R1 has DLCIs for R2, R3, and R4. In this
example and for your lab you only want to configure R2 and R3 for FR access,
and not R4. Since all of these DLCIs are going to R1, you can configure R1
to only communicate via the DLCIs to R2 and R3 as a multipoint config or as
two separate point to point subinterfaces.

Pretty straightforward and simple; make sense?

Andy, not to be annoying with this question, but can we assume you are
setting up your lab for the first time? If so, then you will likely want to
set up the FR access in the same way that your labs show you. Probably all
the routers will have full mesh FR access defined on the switch, and you
will configure your labs according to the instructions.

HTH,

Andrew lee Lissitz

On Wed, Sep 9, 2009 at 11:09 PM, Andy Reid <ccie_at_reid.it> wrote:

> Hi All,
>
> I am running a Cisco 2522 as my frame-relay switch. Is there any way to
> configure it so that one input dlci can be switched to multiple output
> dlci's, such as in a point to multi-point configuration?
>
> I am trying to build a frame-relay topology where each of the three routers
> (R1, R3 and R4) physically connect to the F/R switch with Serial0/0 and
> logically connect together in a mesh, i.e. R1 dlci 134 - R3 dlci 301, R1
> dlci 134 - R4 dlci 401 and R3 dlci 304 to R4 dlci 403.
>
> The main restriction is that R1 only has one DLCI (134) to connect back to
> the F/R network.
>
> regards Andy
>
>
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-- 
Andrew Lee Lissitz
all.from.nj_at_gmail.com
Blogs and organic groups at http://www.ccie.net