I think I read somewhere that turning off a switch will not clear the VTP database revision number.
Which means that if I am using a switch in a Lab environement and the revision number is increasing at a fast rate, connecting the switch (in VTP server mode) to my LAN will disrupt the network. Because of its high revision number it will overwrite all my VLAN information and basically stop my network operation!!
Can anyone confirm this (may be from previous experience)?
How can I clear my VTP database and reset the revsiion number if its not done when I power off the switch?
You are absolutely correct. The situation is even worse: If you connect a switch with higher revision number to the VTP domain it will overwrite the VTP database of the other switches even when it is a VTP CLIENT!!!
But there is a simple solution:
Just change the VTP domain name to something else (Null, e.g.) on the switch and then back to your VTP domain name. This will force the revision number to zero (check it by "sh VTP ..." command) and you can connect the switch to the network with no fear.
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...