From: Przemyslaw Karwasiecki (karwas@xxxxxxxxxxx)
Date: Fri Mar 01 2002 - 16:33:05 GMT-3
The problem with "root guard solution" is that it is issued
on switch and prevents OTHER CONNECTED switches to become roots.
So, if you want to make sure that switch you are configuring
will never become a root, you can set its priority to the max,
and possible play with MAC address, but you will never get
guarantee that someone else will not do the same.
Maybe solution is in CCNA ciricullum, but I don't recall it...
Probably I should be stripped from my CCNA and CCNP status then :-(
(BTW -- "root guard" is also avalable on Cat 5000 in CatOS 6.2)
Przemek
On Fri, 2002-03-01 at 14:05, Joseph Ezerski wrote:
> If you want to get really advanced and you have bigger switches, like the
> Cat6509, look into the root guard feature.
>
> -Joe
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> Leigh Anne Chisholm
> Sent: Friday, March 01, 2002 10:34 AM
> To: alain faure; Clark J; ccielab@groupstudy.com; clark.j@163.com
> Subject: RE: a question on SPANTREE
>
>
> That's a drastic response to what is actually a simple problem. In
> implementing that solution, you're creating the potential for problems well
> beyond those that you want to resolve. Spanning Tree has a simple priority
> system that's easy to manipulate that doesn't have the implications of your
> solution.
>
> Check the CCNA curriculum for information on how to configure a switch so
> that
> it can't become the root switch in any given VLAN.
>
>
> -- Leigh Anne
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> alain faure
> Sent: Friday, March 01, 2002 11:23 AM
> To: Clark J; ccielab@groupstudy.com
> Subject: Re: a question on SPANTREE
>
>
> hi,
>
> that's interresting question, and we have a long debate on this with some of
> my
> friends about one of our customer site.
>
> for me, i think the better way (but they don't agree with me) is to disable
> spanning tree on the VLAN for the switch you don't want they become root ?
> What
> do you think about ?
>
> best regards
>
>
> --- Clark J <clark.j@163.com> a icrit : > Dear CCIEs and Near CCIEs,
> > How to configure a switch so that it can't become the root switch in
> VLAN
> A
> > ?
> > Best regards,
> > Clarke J
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