Re: Root bridge

Hi,
BPDU filter may result in routing loop.

Thanks,
Sonu

On Thu, Sep 23, 2010 at 2:23 PM, karim jamali <karim.jamali_at_gmail.com>wrote:

> Hi Masroor,
>
> Other weirdo options could be:
>
> 1)Configure root guard on all the ports of the switch so that no one else
> but you can be come root switch, however this will put ports in to
> err-disabled state.
>
> 2)Configure BPDU filter on the ports, by which you don't receive/send BPDUs
> and you still believe you are the Root Bridge. This will not result in
> err-disabled ports.
>
> HTH,
>
>
> On Thu, Sep 23, 2010 at 9:10 AM, masroor ali <masror.ali_at_gmail.com> wrote:
>
> > see i have a question in a document asking to make a root bridge without
> > changing priority, there must be a solution of this question..
> >
> > On Thu, Sep 23, 2010 at 12:59 AM, Chris Grammer <cgrammer_at_essilorusa.com
> > >wrote:
> >
> > > Change the MAC to 0000.0000.0001 on the switch you want to be root?
> > > Change the switch priority on all the other switches to be higher than
> > the
> > > switch that you want to be root.
> > >
> > > The bridge with the lowest Bridge ID wins.
> > >
> > > *Select a root bridge.* The *root bridge* of the spanning tree is the
> > > bridge
> > > with the smallest (lowest) bridge ID. Each bridge has a unique
> identifier
> > > (ID) and a configurable priority number; the bridge ID contains both
> > > numbers. To compare two bridge IDs, the priority is compared first. If
> > two
> > > bridges have equal priority, then the MAC addresses are compared. For
> > > example, if switches A (MAC=0200.0000.1111) and B (MAC=0200.0000.2222)
> > both
> > > have a priority of 10, then switch A will be selected as the root
> bridge.
> > >
> > > http://en.wikipedia.org/wiki/Spanning_tree_protocol
> > >
> > >
> > > <http://en.wikipedia.org/wiki/Spanning_tree_protocol>Chris
> > >
> > >
> > > On Wed, Sep 22, 2010 at 11:45 AM, masroor ali <masror.ali_at_gmail.com>
> > > wrote:
> > >
> > > > hi,
> > > >
> > > > is their any way to make a root switch without changing switch
> > > priority???
> > > >
> > > > --
> > > > Regards,
> > > > Masroor Ali
> > > > P Please don't print this e-mail unless you really need to.
> > > >
> > > >
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> > >
> >
> >
> > --
> > Regards,
> > Masroor Ali
> > P Please don't print this e-mail unless you really need to.
> >
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>
> --
> KJ
>
>
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Received on Sun Sep 26 2010 - 13:27:17 ART