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In the previous video, we have done configuring
VTP on all switches.

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So switch 1 become server, switch 2 become transparent,
switch 3 become client, and switch 4 become server.

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Next in this video, we are going to create
a VLAN.

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But before that, let’s check on all switches,
make sure that there is no new vlan created yet.

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Let’s start with switch 1, do show vlan brief,
okay here we can see that we only have default vlan,

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which is vlan 1 and some others vlan.

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Next, let’s check on switch 2, do show vlan
brief. Okay here we can see that we also only

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have default vlan.

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Switch 3, do show vlan brief.

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Okay here also only default vlan, and last
switch 4, do show vlan brief.

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Okay here also only default vlan.

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Now let’s try to create a vlan on VTP server.

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Create vlan 2, the name let’s say A, vlan
3 let’s say the name is B, vlan 4,

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let’s say the name is C, vlan 5, let’s say the
name is D.

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You are free to use anything for the vlan name.

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Now Let’s check it, do show vlan brief,
okay here we can see that now in switch 1,

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we have 4 new vlan, which is vlan 2 until
5.

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Now let’s check on the vtp client, do show
vlan brief.

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Okay here we can see that we have 4 new vlan.

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We don’t create any vlan here, we only create
a vlan on switch 1, so all of this vlan is

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created automatically.

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Let’s also check on switch 4, do show vlan
brief.

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Okay here we can see that we also have 4 new
vlan.

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And all of this vlan is also created automatically.

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So the summary is, vtp server also act as
vtp client.

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Now let’s try to modify a vlan on switch 4,
let’s try to remove vlan 5,

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the command is no vlan 5, let’s check it, do show vlan
brief.

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Okay here we can see that vlan 5 is gone.

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Let’s chek it on the vtp client, do show
vlan brief.

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Okay here vlan 5 is also gone.

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Next let’s also check on switch 1, do show
vlan brief.

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Okay here we still have vlan5, this is should
be gone.

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May be this is need some time for vlan 5 to
gone.

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Let’s click fast forward time, let’s check
again, okay here still exist,

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I think this is a bug on cisco packet tracer.

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To solve this, let’s try to create a new
vlan on switch 4, let’s create vlan 6,

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let’s say the name is e. Let’s check it, do show
vlan brief, okay here we have vlan 6,

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let’s check on the vtp client, okay we have vlan
6, let’s check on switch 1,

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okay here we can see that now vlan 5 is gone and now
we have vlan 6.

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Okay, so now we understand that vtp server
also acts as vtp client, if other server doing

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vlan modification, the switch will follow
that modification.

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Next let’s talk about vtp client, we know
that the vlan on vtp client will follow the

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vlan on the vtp server.

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So if server create a new vlan or remove vlan,
the vlan on the vtp client will follow that.

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So here we can see that we have vlan 2 3 4
and 6 automatically.

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Next we need to know that in the vtp client,
we can not doing vlan modification.

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We can not create or remove a vlan.

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For example, here we want to remove vlan 6.

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The command is no vlan 6. Okay here we can
see an error message “vlan configuration

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not allowed when device is in client mode”,
this is means that we can not modify vlan configuration.

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Okay we can not remove vlan, let’s try to
create vlan, let’s say vlan 7.

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Okay here we can see that we also can not
create a new vlan.

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Okay now we understand about vtp server and
vtp client, next, let’s learn about transparent.

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Vtp transparent not follow also not affect
other switches.

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For example here let’s try to see the vlan,
do show vlan brief.

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Here we can see that we only have default
vlan, this is means that switch transparent

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not follow the vlan configuration of vtp server.
here we don’t have vlan 2, 3, 4 and 6.

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But we can create a vlan in vtp transparent,
let’s try to create vlan, vlan 10,

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the name let’s say k, vlan 11, let’s say the name
L. Let’s check the vlan, do show vlan brief.

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Okay here we can see that now we have vlan
10 and vlan 11.

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Now let’s check in the server, do show vlan
brief.

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Here we can see that we don’t have vlan
10 and 11, let’s check in the client,

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do show vlan brief, here we can see that we also
don’t have vlan 10 and vlan 11.

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So remember that vtp transparent not follow
the vlan configuration of vtp server,

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but also not affect other switches.

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Okay I hope you understand about vtp.

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I think enough for this video.

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Thankyou for watching and see you on the next video.