[c-nsp] VTP domain.

[Keith]

On Wed, 11 Feb 2009, Dale Shaw wrote:

|->Hi,
|->
|->On Wed, Feb 11, 2009 at 10:54 AM, Mark Tinka <mtinka at globaltransit.net> wrote:
|->> No clear way to do this, today, without deleting the
|->> 'vlan.dat' file. Wish that could be fixed.
|->
|->Anyone out there sadistic enough to have tried copying out vlan.dat,
|->nullifying the VTP domain with a hex editor, then copying it back in?
|->I wonder if that works at all.
|->
|->The VTP domain name string can be up to 32 characters. It starts at
|->position 0xA (10) and goes through to 0x29 (41). I suppose there's a
|->strong possibility other parts of the file (other than the domain name
|->string) are changed with a domain name change.
|->
|->SW1(config)#vtp domain ABCDEFGHIJKLMNOPQRSTUVWXYZABCABCABCABC
|->Domain name is truncated to 32 characters, maximum VTP domain name length.
|->Changing VTP domain name from ZAZAZAZAZAZAZAZAZAZAZAZAZAZAZAZ to
|->ABCDEFGHIJKLMNOPQRSTUVWXYZABCABC
|->SW1(config)#end
|->SW1#more /binary vlan.dat
|->00000000:  BADB100D 00000002 03204142 43444546    :[.. .... . AB CDEF
|->00000010:  4748494A 4B4C4D4E 4F505152 53545556    GHIJ KLMN OPQR STUV
|->00000020:  5758595A 41424341 42430000 00000000    WXYZ ABCA BC.. ....
|->[...]
|->
|->So many silly ideas, so little time..

A while back I took a vlan.dat file from a 24 port 3550 lab switch and
moved it to a 48 port 3560 to see what would happen (and to see if it
would save me time, in that I would not have to enter in the vlan info
again) but the 3560 went into a continuous reboot. Had to go into boot
mode and delete the vlan.dat. So much for a shortcut...