One of the questions I've received is how to configure the layers three switch in Jinnah's three for
this demonstration.
I'm going to use an Iowa V later to switch the Iowas Ivy League to sports both late too as well as late
3 switching what I'll do is use two routers as PCs and the topology these devices take a while to boot
up.
So I'll start them and open up console's to them.
As you can see on the output here we've got Iowas the Wii booting on the three devices.
What I'll do now is Connect the rods to the switch.
So at the moment we've got two rods connected to this layer three switch the rods in this example are
acting as PCs some simply going to use them to demonstrate villans and layer 3 configuration on the
slave 3 switch.
The focus of this video will be the configuration of villans on the switch and the configuration of
interval and routing.
In other words getting the switch to act as a last three device so the switch is booted up show IP interface
brief.
There are various interfaces available on the switch.
Show Vilain brief shows us that only the default villains exist on the switch.
So what I'll do is give the switch a name switch one and then I'll create TV lands on the switch.
So show movieland brief we've got Fillon one violent two and violent three configured on the switch
at the moment.
The rod is a booted so I'll bypass the initial config on those two rods acting as our PCs in the topology
unnoticed show interface you give it a 00 switch port.
This port is in Villon one that's the default.
The same is true for the second port.
What we'll do however is configure gigabit 00 to be in violent too and gigabit.
0 1 will be put into villaine 3 So now show interface gigabit 00 switch port.
Shows us that gigabit 0 0 is in V land to and gigabit 0 1 is in V LAN 3 show IP route on the switch.
Shows us that IP routing is enabled.
If I disable IP routing and use the command show IP route notice the output is very different to when
IP routing is enabled.
Now in these Iowa Sivy layer two switches IP writing is enabled by default but it's often not enabled
on real physical switches so we enable interval and routing or Leia's free functionality we need to
have the IP routing Kamandi enabled on the switch show IP interface brief shows us the physical interfaces
to enable in TV land routing between the villains we need to configure IP addresses in the relevant
villans on what a cold switch of virtual interfaces is Fiore's some both a villain too.
And we learned three we need to configure IP addresses in the relevant subnet.
So show IP interface brief we can see that an IP address is configured in England too and on the line
3 I need to know shut those files.
So now show IP interface brief we can see that those two Fiore's or Layer 3 interfaces for the villains
are configured and the files are up.
That's how you configure the switch into the land routing and layer 3 functionality.
So on the router acting as a PC I can shut the interface and give it an IP address in the villain such
as the following.
All disable IP routing on the router and configure an IP default gateway of 10 or 1 to 2 to 5 4.
So show IP route on the router shows us that IP writing is disabled can be paying the default gateway.
Yes we can on both side will do something similar.
So confetti host Rodda to interface could give it 0 0 no shot IP address 10 1 3 1 2 4 5 2 5 2 4 5 0
no IP routing to disable writing and make this act like a PC IP default gateway 10 1 3 2 5 for paying
10 1 3 2 5 4 so two components stifled gateway.
So what we should be able to do now is ping Rodda 2 from router 1 which we can and to prove that de-bug
IP ICMP on the side and paying the router from router 2 and you can see that the pings arrived and an
echo reply was sent.
So now if we disable IP routing on the last three switch what will happen is the pings no longer work
because the switch is no longer acting as a layer three switch at least three capability has been disabled
on the switch enable IP rotting and rotting takes place and pings can be sent from one router to the
other.
So rodded to gimping right a one and Rodda one can ping router too.
So that was a simple example of how to enable in TV land rotting on a switch.
In other words make it act as a lever three switch.
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