Thursday, November 9, 2017

cisco VTP initial connection shutsdown all all vlans

I'm labbing some stuff here to mess with VTP. I have a switch with ip routing enabled and 6 vlans configured along with interfaces as well. It's set as the VTP server. Once I connect another switch to a trunk port and vtp starts up, all the vlan's on the original switch disappear from "show vlan brief" and I have to manually go in and...

interface vlan XX

vlan XX

then the interface status changes to up.

Any idea whats going on here? Trying to understand why the "server" switch would be doing this. Thanks for any help!

Edit: ohh, and it's running 12.2, a 3560G



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