Hello.After connecting two 2950 switches with an ether channel and setting the ports in channel-group and port-channel interface as trunks as I have seen it done in previous configurations in our network I have the following problem with VTP between them.
When I set one switch as VTP server and create VLANs on it the other switch picks up those VLANs even though no VTP domain name is set on it.I was under impression that a switch couldn't get VLAN information from another switch if they aren't in the same VTP domain.Is there something I'm missing here?
This is an expected behavior what you mentioned in your second post.
By default, the switch is in the VTP no-management-domain state until it receives an advertisement for a domain over a trunk link or until you configure a domain name.
If the switch receives a VTP advertisement over a trunk link, it inherits the management domain name and the VTP configuration revision number. The switch then ignores advertisements with a different domain name or an earlier configuration revision number.
So as you mentioned you deleted everything and when it came back again it has no-management-domain and as it receuved the VTP advertisement it inherits the VTP domain name and start working in same VTP domain name. But if you manually change the VTP domain name on both the switches then any changes in vlan configuartion will not be propogated and updated by second switch.
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