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VTP - Vlan Trunking Protocol

Written by Rene Molenaar on . Posted in Switching

Scenario:

You are working as a trainee at a large African safari company and acquired the task of setting up VTP (Vlan Trunking Protocol). You need to create a bunch of VLANS and it would be a shame if you had to do everything by hand, let's see if you can find a faster and more scalable solution.

Goals:

  • Create the following VLANS on switch Bobcat:

  • VLAN 10: name Tigers

  • VLAN 20: name Lions

  • VLAN 30: name Panthers

  • Configure the interfaces between the switches as trunks.

  • Configure switch Bobcat to be the VTP server.

  • Configure switch Panther to be a VTP client.

  • Configure switch Tiger so it does not synchronise itself to the lastest VTP information, it should forward advertisements to switch Panther though.

  • Change the VTP domain name to "GNS3Vault".

  • Use the password "Vault" for VTP.

  • Make sure there is no unnecessary vlan traffic flooded on the trunk links.

IOS:

c3725-adventerprisek9-mz.124-15.T7.bin

Topology:

VLAN Trunking Protocol (VTP)

Video Solution:

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Comments (2)

  • avatar
    tohritz

    Hi Rene,

    Nice and simple lab...I just have a question though.

    When setting up a password in VTP, does it have to be typed on the client as well or just the server?

    I also noticed that transparent mode switches doesn't forward the data it receives if it's on a different domain? at first, i forgot to set the domain for tiger that's why I was wondering why switch panther didn't receive the revisions from bobcat.

    why is that?

  • avatar
    ReneMolenaar

    Hi Rito,

    The VTP domain and password have to match on all devices. If a device has no domain name (null) it will automatically configure itself with the same domain name.

    It makes sense to use the same domain name otherwise anyone could run a VTP transparent and forward VTP advertisements to anywhere in the network :P

    Rene