[c-nsp] VLAN disappeared

[sthaug at nethelp.no]

> Additionally, you may want to limit the amount of VTP servers you have
> within you L2 domain.  There are no technical reasons for this, other than
> you don't want a device with a higher revision number that is missing VLANs
> to propagate the subset of VLANs to switches with a lower VTP revision.

Some of us have long ago concluded that VTP is *way* too dangerous to
use in any network of a reasonable size. "once bitten twice shy", etc.

Steinar Haug, Nethelp consulting, sthaug at nethelp.no