[nsp] VLAN database propagation

[Gert Doering]

Hi,

On Thu, Mar 18, 2004 at 09:46:27AM -0500, Warren Kumari wrote:
> <rant>
> I have made a whole bunch of feature requests asking that the default 
> mode be changed to transparent, but apparently Cisco believes 
> plug-and-play is more important than reliability. How many people on 
> the list have had someone plug in an old / test switch that has a 
> higher VLAN version number than their production switches and lost all 
> of their VLANs because of this?

Yep.  Had one of the old switches for testing, deleted all the VLANs on it
(due to "cleanup config, no need to keep around") - later reconnected it
to the production network, VLAN database serial number higher than on the
other ones -> boom, network dead.

Overall I *do* like VTP, because it's so convenient, but you need to make
sure that the number of people that connect and configure new VTP members
is small, and that all those people know what they are doing.

gert

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Gert Doering - Munich, Germany                             gert at greenie.muc.de
fax: +49-89-35655025                        gert at net.informatik.tu-muenchen.de