DTP which negotiates your trunks will only negotiate the trunk between switches in the same VTP domain. The only way around this that I know of is to hard code your trunks using the following:
switchport mode trunk switchport nonegotiate Once you do this the switch no longer cares if the other end is in the same VTP domain... -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jeff Kell Sent: Friday, October 05, 2007 12:05 PM To: [email protected] Subject: [c-nsp] Splitting VTP domain without a meltdown I'm trying to split a branch building off of the main campus VTP domain and not having much success. Currently we have one VTP domain that propagates over the main campus. The goal is to split this into several independent domains to reduce the vlan count and move to L3 distribution, and make the L3 uplink point a VTP server for the new domain. In a testbed case, I could remove a switch from the domain. The vlan configuration remained "frozen" and things kept working OK. In the production case, when I change the VTP domain, the trunks drop back to vlan1 only and things go to hell :-) Is there a "non-invasive" way to break a building off of a VTP domain without visiting each wiring closet and manually configuring things for the new domain? Surely there is a "non-forklift" approach to accomplish this task. Thanks in advance, Jeff _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
