From: Brian McGahan (bmcgahan@internetworkexpert.com)
Date: Tue Oct 21 2003 - 14:44:46 GMT-3
There is no definition of 'primary' or 'secondary' servers in
VTP, nor can there be a mismatch in the VTP revision number. The VTP
revision number is used as a way to ensure that all devices have the
same copy of the VTP database. Therefore, all devices throughout the
VTP domain will have the same revision number, assuming that the domain
is converged. The exception is when there are devices running in
transparent mode, as they hold locally significant copies of the
database.
Brian McGahan, CCIE #8593
bmcgahan@internetworkexpert.com
Internetwork Expert, Inc.
http://www.InternetworkExpert.com
Toll Free: 877-224-8987
Direct: 708-362-1418 (Outside the US and Canada)
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
Of
> Jung, Jin
> Sent: Tuesday, October 21, 2003 6:03 AM
> To: 'Tom Young'; 'ccielab@groupstudy.com'
> Subject: RE: VTP server's backup
>
> Yes,, you can run two VTP servers in same network, same domain,,,
>
> One with higher revision number will be the primary VTP server.
> In case first one goes down, second VTP server will take over.
>
> Second VTP servers (switch) will get new VLAN information from first
VTP
> server.
>
> You can create a VLAN in second VTP server, but it will not advertise
to
> other switches in that VTP domain.
> Only the VLANs that are created in First VTP server will be
advertised.
>
> I am not sure if this is good design or not, I guess that will defer
from
> person to person.
>
> In any case. Save your config on your VTP server at all times, every
day
> or
> every week.
> Or run CiscoWorks2000 or some sort of config management tool.
>
> As you know, if someone plugs in a new switch with higher revision
number
> on
> same VTP domain.
> -- Your switch network will be down, until you shut that switch down
or
> bring up the VTP server with higher revision.
>
> Personally, I do not like to run VTP at all, unless I have to, I like
to
> run
> transparent mode on all my switches.
> And If I have to create a VLAN, I use CiscoWorks to run config on
multiple
> switches at same time. Or type it in if its only couple of access
> switches.
> I just don't like to leave a protocol running that can shut me down at
any
> given time.
>
> -- Just my 2 cents....
>
>
> Jin Jung...
> CCIE#12368
>
>
>
>
>
> -----Original Message-----
> From: Tom Young [mailto:gitsyoung@yahoo.co.jp]
> Sent: Monday, October 20, 2003 9:03 PM
> To: ccielab@groupstudy.com
> Subject: VTP server's backup
>
>
> Hi, group
>
> How to back up the vtp server in a vtp domain, does
> the back up server could create VLAN while it in the
> backup status.
>
> Thanks
>
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>
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