RE: VTP question

From below, it looks like someone brought a switch into an environment and
updated the vtp database and potentially erased vlans that were in
production. It's a scary sight sitting in a datacenter and seeing dozens of
switch port LEDs go amber. The other one I see is folks put the switch
into transparent mode because of VTP.. but they did not remove the
spanning-tree priority configuration, and depending on where it was plugged
in, shut down the flow of network traffic as well.

From: GAURAV MADAN [mailto:gauravmadan1177_at_gmail.com]
Sent: Thursday, September 29, 2011 11:36 AM
To: Neil Moore
Cc: robclav_at_gmail.com; Nick Jay; Cisco certification
Subject: Re: VTP question

Neil ,

VTP has nothing to do with STP .
Can you be more clear on what your point was ?

Thnx
Gaurav Madan

On Thu, Sep 29, 2011 at 9:48 PM, Neil Moore <neil_at_droopy.com> wrote:

One other note... even in transparent mode, if the spanning-tree root values
are more desirable, it will become root.
My SOP is to blank the switch and remove its vlan data files (reboot) and
then add it to the environment

-----Original Message-----
From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
robclav_at_gmail.com
Sent: Thursday, September 29, 2011 3:48 AM
To: Nick Jay; Cisco certification
Subject: Re: VTP question

Hi Nick,
The question should be who push the vtp changes?
The answer is yes, because this client with the same domain, has a higher
revision. So. When this switch send his update with higher revision for the
same domain, the rest of switches will update their vtp database as if was a
server update.
Hth,
Robclav

Enviado desde mi BlackBerry. de Vodafone

-----Original Message-----
From: Nick Jay <wanttobeccde_at_yahoo.com>
Sender: nobody_at_groupstudy.com
Date: Wed, 28 Sep 2011 23:27:43
To: ccielab_at_groupstudy.com<ccielab_at_groupstudy.com>
Reply-To: Nick Jay <wanttobeccde_at_yahoo.com>
Subject: VTP question

If a new switch is added in a network, With higher revision number,same
domain name but in "CLIENT" mode.. Will it harm the network by flushing the
vlan information of the existing network?

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Received on Thu Sep 29 2011 - 11:49:56 ART