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This is one of multiple videos discussing a three switching in a previous video I showed you how to

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configure the switch into villans rotting.

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I demonstrated how to configure multiple interfaces in different villans and then enable layer 3 functionality

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on the switch to allow it to rot from one villain to another.

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Another function of a 3 switch is to run routing protocols.

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So in this example what I'll do is connect the two switches together on gigabit one slushes zero and

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will enable a rotting protocol between these two switches.

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In addition I'll bring up the PC into the topology and in this example we'll put the PC into a separate

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V LAN what also do is make the ports between the switches routed ports rather than switch ports.

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So this link will act as a routed link.

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In other words least three link rather than a lead to link all start up the additional switch and all

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configure the third PC with an IP address.

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And let's say the 1 9 2 1 6 8 0 subnet and click save and I'll start that PC up I'll open up a console

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to the new switch.

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As well as the new PC.

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So the second switch will take a while to boot.

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Wallet's booting I'll configure the first switch in the topology

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so on the first switch interface gigabit one slashes.

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I'm going to use the kimonos switch port to make this a routed port.

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The interface has come up now because the other switch has booted all configure an IP address on this

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port in the 10 1 10 0 0 range.

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So notice now show IP interface brief does port X differently to the other ports to port.

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So we have the IP address shown directly on the interface

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on the second switch hostname switch to Gigabit zero one needs to be configured as a routed port

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so interface gigabit.

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Once slashes zero no switch port IP address tendered one that tended to

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pain tended one to 10 to up 1 which is switch 1.

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So switch to pings which one show the land brief switch to currently only has field one or create another

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villain let's say the last 20 or let's create one called movieland 192 and then I'll create an s vi

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of what I need to reconfigure this PC with a default gateway of 1 9 2 1 6 8 0 1 so IP address 1 on 2

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1 6 8 0 1 slushed 24.

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And I need to know shut that is vi.

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So show IP interface brief.

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We've now got the IP address configured on an S-5 192 but we need to put the physical interface into

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that LAN so show IP interface brief as vi is configured.

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The interface has been configured in Villano a hundred ninety two and we can prove that by doing show

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interface which 00 a switch port it belongs to a hundred ninety two.

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So show IP interface brief interface has now come up CPC PC 3 now should be able to ping switch to which

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it can but these PCs over here will not be able to ping this PC and vice versa until we enable a routing

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protocol between the switches so on switch one enable the GOP and simply enable it on all interfaces

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and disable automatic summarization I'll do something very similar on switch to enable UI.

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GOP needs to be an autonomous system 100 in other words the same autonomous system as the other router

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and disable order summarization.

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We can see that a neighbor relationship is established.

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So switch to has an inside job the neighbor relationship with switch one switch to should have learnt

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about routes from switch one which it has learnt about network 10 1 2 0 3 0 4 0 and 5 0 which are the

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subnets on these Villani interfaces we can see that by using the command show IP interface brief notice

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the IP addresses on the sci's they were advertised through the GOP and switched to has learnt that.

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So in this typology now PC three should now be able to ping PC to as an example to his PC three Kennet

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paying $10 1.5 to one.

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Yes it can.

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What about PC 1 which is 10 1 to 1.

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Yes it can.

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To a trace route to 10 1 to 1.

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What we should see is that it hits switch to which it does then it should hit switch 1 which it does

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and then it should get to the destination which is PC 1 which it does.

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So that's an example of how you configure layer 3 switches with routing protocols to allow Roths to

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be advertised from one layer 3 switch to another.

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Hope you enjoyed this video if it's been a benefit to you please like it please subscribe to my YouTube

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channel.

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I wish you all the very best.
