We have four Cisco switches - 2960's, one 3550, and 3 VLAN's. The 3550 is the VTP Server, others are clients.
Our VTP domain is london
VTP Revision number is x
All is working fine.
We'd like to plug a new switch into the network. As I understand it, new switches are configured to Server mode by default, and seeing as it's a brand new switch it shouldn't have any info on it, nor will the revision number of any info be higher than x. Question is, do I configure the VTP domain, then set it as a client *before* plugging into the network or after?
Secondly, what is this switch was used by use previously, left on the shelf, and now we want to use it again. Is there a command to erase the VTP database?
Basically, what I don't want to happen is any scenario where we plug a new switch in (either used or new) and it overwrites out existing VLAN databases. Is there a method of ensuring this doesn't happen?