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- In this video, we're gonna look at
yet another one of the built-in nodes
that's built into GNS3, which is the Frame-Relay switch.
Chances are, if you're studying for
some kind of Cisco certification test,
they're gonna want you to know
how to configure Frame Relay,
at least from the perspective of the router,
connecting into the Frame Relay cloud.
So, we need something in that cloud
to provide those Frame Relay connections,
and here's where we're gonna use
the Frame-Relay switch that's built into GNS3.
So, before we get started,
this is the topology that I'm going to build.
This is my objective, so
any lab that you're building up,
it's always a good idea to write down
a quick sketch on a piece of paper or something
of what it is that you're trying to accomplish,
what you're trying to build.
So, in this particular case,
R2 is actually gonna have a total of two PVCs,
two Frame Relay permanent virtual circuits.
From R2 to R4, that's gonna be one of our PVCs,
and then another one, from R2 going to R3.
And we can see here that I've selected the DLCI numbers
that I'd like to use for each of these.
Now, much of this, in order to save time on this video,
has already been built up in GNS3,
I've already put in the virtual PCs, the routers,
I've already got my IP addresses and routing going on,
so, really, I'm just gonna show you
how to configure the Frame-Relay switch.
The purpose of this video is not
to show you how to configure the various
Frame Relay commands within Cisco iOS on your routers.
That's not what this is for.
This is just purely to show you
how to drag and drop the Frame-Relay switch in there,
set up its interfaces,
and make sure that it has the DLCI numbers that you wish.
So, let's take a look at how we can do that.
So, here we go, most of this is already set up.
So, over here, within the switches category,
the very last one is our Frame-Relay switch,
so we can just drag and drop that into place.
And, just like the Ethernet switch was
automatically on, the Frame-Relay switch,
as you can see here, also is automatically on.
Status light is green.
And, just like the Ethernet switch,
where there was no command line to configure,
we had to do it via the GUI,
same thing here with the Frame-Relay switch.
Just right-click,
and from the right-click menu, just select configure,
which will bring up this box, right here.
And now, all we need to do is
map these various ports with what we want in our diagram.
So, if I take a look, once again, at my diagram,
I want port number one
to have, actually, two DLCIs on it.
I'm gonna have to do this one at a time.
So, DLCI number 101, on port one,
should be mapped to DLCI 202 on port two.
We're almost there, except,
instead of being mapped to DLCI 202 on port two,
it's being mapped to DLCI 202 on port 10,
so that's the only thing I need to fix.
Just change that to port two, click add.
So, just with that one click of a button
and changing that port number,
we have now created the red permanent virtual circuit,
from R2 to R3.
Now, let's create the purple
permanent virtual circuit, from R2 to R4.
So, that's gonna be DLCI 102.
Okay, so the DLCI number here is correct,
but the port number's wrong.
We need to put it back on port number one,
and that should be going out port number three,
which is DLCI 203, and that is correct.
So, let's just hit add, apply, and okay.
So, that's really all we have to do
from the standpoint of configuring the Frame-Relay switch,
it's pretty simple.
Now we just need to connect things together.
Now, a little word of warning or word of caution here.
I don't know if this was an intended feature or not,
but I noticed when creating this lab the first time
that if I tried to link up
using the add a connection tool,
my Frame-Relay switch to my routers,
while the routers were up and running,
sometimes it worked, sometimes it didn't work.
I got a flashing message that just wouldn't go away.
So my suggestion to you would be, in this particular case,
make sure all of your routers are powered off first,
connect them via the connection tool
to the Frame-Relay switch, and then
turn the routers on afterwards.
Don't connect them up while the routers are on.
So, at this moment,
all of my routers, as you can see, are off,
which is what I want.
So let's just start connecting things up.
So, port number one here, is gonna go to R2.
I'll just connect it to Serial2/0.
Port number two
is gonna go to, once again, 2/0 on R3.
And port number three
is also gonna go to 2/0 on R4.
Now, let's move my
names of interfaces and stuff around just a little bit
so it's a little bit clearer.
Let's drop my DLCIs into place.
Let's drop my host IP addresses
into place.
There we go.
Looks like everything is ready to go,
so now let's just go ahead and turn on
all of the other devices.
Okay, so, how do we verify it works?
Well, let's go to one of these routers, here.
Let's go to R4, as an example,
and see if he learns about routes to the
two network and the one network.
And he does.
He's learned via EIGRP the remote networks
of 2.2.2,
4.4.4, and 1.1.1.
And, if everything is working correctly,
PC1 should be able to ping across to PC3.
But, even if that's not working,
the Frame Relay is up and working.
There's no way that R4 could've learned
about the 2.2.2 or the 1.1.1 network
unless it was done via Frame Relay.
So, that's it.
Dragging and dropping the Frame Relay built-in node
is actually pretty simple.
(energetic music)