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(energetic music)

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- In this video, we're gonna look at

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yet another one of the built-in nodes

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that's built into GNS3, which
is the Frame-Relay switch.

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Chances are, if you're studying for

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some kind of Cisco certification test,

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they're gonna want you to know

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how to configure Frame Relay,

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at least from the
perspective of the router,

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connecting into the Frame Relay cloud.

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So, we need something in that cloud

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to provide those Frame Relay connections,

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and here's where we're gonna use

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the Frame-Relay switch
that's built into GNS3.

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So, before we get started,

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this is the topology
that I'm going to build.

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This is my objective, so

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any lab that you're building up,

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it's always a good idea to write down

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a quick sketch on a piece
of paper or something

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of what it is that you're
trying to accomplish,

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what you're trying to build.

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So, in this particular case,

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R2 is actually gonna
have a total of two PVCs,

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two Frame Relay permanent
virtual circuits.

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From R2 to R4, that's
gonna be one of our PVCs,

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and then another one, from R2 going to R3.

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And we can see here that I've
selected the DLCI numbers

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that I'd like to use for each of these.

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Now, much of this, in order
to save time on this video,

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has already been built up in GNS3,

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I've already put in the
virtual PCs, the routers,

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I've already got my IP
addresses and routing going on,

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so, really, I'm just gonna show you

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how to configure the Frame-Relay switch.

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The purpose of this video is not

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to show you how to configure the various

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Frame Relay commands within
Cisco iOS on your routers.

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That's not what this is for.

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This is just purely to show you

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how to drag and drop the
Frame-Relay switch in there,

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set up its interfaces,

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and make sure that it has the
DLCI numbers that you wish.

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So, let's take a look
at how we can do that.

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So, here we go, most of
this is already set up.

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So, over here, within
the switches category,

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the very last one is
our Frame-Relay switch,

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so we can just drag and
drop that into place.

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And, just like the Ethernet switch was

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automatically on, the Frame-Relay switch,

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as you can see here,
also is automatically on.

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Status light is green.

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And, just like the Ethernet switch,

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where there was no
command line to configure,

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we had to do it via the GUI,

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same thing here with
the Frame-Relay switch.

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Just right-click,

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and from the right-click
menu, just select configure,

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which will bring up this box, right here.

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And now, all we need to do is

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map these various ports with
what we want in our diagram.

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So, if I take a look,
once again, at my diagram,

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I want port number one

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to have, actually, two DLCIs on it.

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I'm gonna have to do this one at a time.

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So, DLCI number 101, on port one,

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should be mapped to DLCI 202 on port two.

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We're almost there, except,

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instead of being mapped
to DLCI 202 on port two,

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it's being mapped to DLCI 202 on port 10,

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so that's the only thing I need to fix.

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Just change that to port two, click add.

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So, just with that one click of a button

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and changing that port number,

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we have now created the red
permanent virtual circuit,

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from R2 to R3.

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Now, let's create the purple

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permanent virtual circuit, from R2 to R4.

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So, that's gonna be DLCI 102.

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Okay, so the DLCI number here is correct,

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but the port number's wrong.

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We need to put it back on port number one,

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and that should be going
out port number three,

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which is DLCI 203, and that is correct.

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So, let's just hit add, apply, and okay.

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So, that's really all we have to do

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from the standpoint of configuring
the Frame-Relay switch,

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it's pretty simple.

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Now we just need to
connect things together.

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Now, a little word of warning
or word of caution here.

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I don't know if this was
an intended feature or not,

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but I noticed when creating
this lab the first time

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that if I tried to link up

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using the add a connection tool,

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my Frame-Relay switch to my routers,

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while the routers were up and running,

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sometimes it worked,
sometimes it didn't work.

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I got a flashing message
that just wouldn't go away.

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So my suggestion to you would
be, in this particular case,

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make sure all of your routers
are powered off first,

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connect them via the connection tool

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to the Frame-Relay switch, and then

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turn the routers on afterwards.

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Don't connect them up
while the routers are on.

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So, at this moment,

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all of my routers, as
you can see, are off,

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which is what I want.

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So let's just start connecting things up.

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So, port number one
here, is gonna go to R2.

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I'll just connect it to Serial2/0.

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Port number two

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is gonna go to, once again, 2/0 on R3.

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And port number three

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is also gonna go to 2/0 on R4.

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Now, let's move my

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names of interfaces and stuff
around just a little bit

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so it's a little bit clearer.

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Let's drop my DLCIs into place.

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Let's drop my host IP addresses

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into place.

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There we go.

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Looks like everything is ready to go,

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so now let's just go ahead and turn on

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all of the other devices.

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Okay, so, how do we verify it works?

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Well, let's go to one
of these routers, here.

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Let's go to R4, as an example,

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and see if he learns about routes to the

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two network and the one network.

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And he does.

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He's learned via EIGRP the remote networks

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of 2.2.2,

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4.4.4, and 1.1.1.

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And, if everything is working correctly,

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PC1 should be able to ping across to PC3.

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But, even if that's not working,

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the Frame Relay is up and working.

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There's no way that R4 could've learned

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about the 2.2.2 or the 1.1.1 network

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unless it was done via Frame Relay.

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So, that's it.

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Dragging and dropping the
Frame Relay built-in node

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is actually pretty simple.

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(energetic music)