I think its not possible to make pruning automaticaly without VTP.Use diferent VTP domain name and password in each aggregation block to avoid such a failure what you are mentioned.If you need to change the domain name when you are moving switch to a...
The username and password has to be the same in the DMM and in the DMP web account. If you schedule a status query, you can see which username and password you are trying to access.
