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New Member


i have a bunch of 3550 switches that were in a VTP domain that no longer exists. i have set them to mode transparent then client yet they have not received the vtp updates for the vlan names. any suggestions?


Re: vtp

Did you try putting in the current vtp domain name and see if it will get updates . Conf t , vtp domain .

New Member

Re: vtp

yes, it says already configured for the domain

Re: vtp


You want those 3550 to be in a new VTP domain. Do you have your trunk setup properly. Is there any password configured in the new VTP domain.

Check these few things, which are important.

Rest, pls paste the output of " show VTP status ", "Show VTP counters ", Trunk interface output using ->Show interface x/y switchport and also its running config.


-amit singh

Re: vtp

There are several conditions for a client to get updates from a VTP domain:

1. The VTP domain name must be configured correctly (beware of trailing spaces as well!)

2. The VTP password, if present, must be configured correctly. Again, beware of invisible characters and 1/l 0/O differences.

3. There must be a valid working trunk to the domain, with no native VLAN mismatch.

4. If you are running a mixtrure of versions, there are particular rules about interoperating version 1/2 and version 3.

5. The VLAN database on the client must be less than that on the server. If it is more, then you are in trouble, 'cos the server will learn from the client. Yes, really!

Do any of those help?

Kevin Dorrell


New Member

Re: vtp

the problem was user error. the old domain was lowercase whereas the new was uppercase.

thanks for all of the help!!!!

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