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In the previous video, we have done configuring
ip address on all pc.

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But the connection between pc in the different vlan is still failed.

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This is because the layer 3 function in the
multi layer switch is not enabled yet.

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Now in this video, we are going to activate
the layer 3 function of multi layer switch,

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so between pc in the different vlan can communicate
each others.

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Let’s just start.

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Here go to global configuration mode.

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And then type ip routing.

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This command is used to activate the layer
3 function of multi layer switch.

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Now let’s see the routing table again.

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Here we can see that now we have some entry
in the routing table.

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This is means that now the layer 3 function
is enabled.

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Let’s try ping between pc in the different
vlan.

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Let’s try from vlan 10 to vlan 20.

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Okay the result is success.

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Let’s try from vlan 30 in the room 2 to
the vlan 10 in the room 3.

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The first packet is failed, let’s test again,
okay this is success.

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Next let’s try from vlan 1 to vlan 20.

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First packet is failed, let’s test again.

20

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Okay this is success.

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Okay, so now communication between pc in the
different vlan is success.

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I think enough for this video

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Thankyou for watching and see you on the next video.