Re: Spanning-tree

Another vote for rootguard.

The "spanning-tree vlan root primary" command be considered setting
the priority depending on the requirements.

S
Sent from my iPhone

On 19 Jan 2011, at 22:31, Aaron <aaron1_at_gvtc.com> wrote:

> wonder if this is what we could do, determine which switch has
> highest Mac address, then call that switch "switch 1" then I guess
> you could leave all switches at default prio 32768 and Mac would
> dictate who wins... And that highest numbered one (switch 1) would
> never win
>
> Aaron
>
> On Jan 19, 2011, at 1:33 PM, <dls152_at_cox.net> wrote:
>
>> I have four switches trunked together and wanted to know how to
>> keep switch 1 from every becoming root without using the priority
>> command. I hope this helps.
>>
>>
>> ---- "Haas wrote:
>>> Yes, but effectively it would prevent the other switch from
>>> seizing root bridge. I think that is what he was looking for...
>>> Otherwise maybe
>>>
>>> spanning-tree vlan x-y root primary !
>>>
>>> priority command is not used there either.
>>>
>>> I guess it depends on the point of view of which switch you are
>>> configuring... and what order they are patched in to each other,
>>> etc... rootguard seems the simplest solution.
>>>
>>> Maybe dsl152 can fill us in on more specifics...
>>> -Brad
>>>
>>> -----Original Message-----
>>> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On
>>> Behalf Of aaron1_at_gvtc.com
>>> Sent: Tuesday, January 18, 2011 2:47 PM
>>> To: Haas, Brad
>>> Cc: ccielab_at_groupstudy.com; Ronnie Angello; dls152_at_cox.net
>>> Subject: Re: Spanning-tree
>>>
>>> wouldn't rootguard cause the switch that rootguard is config'd on
>>> to then partition (isolate) that switch that is attempting to
>>> become root? is that what you (dsl152) were trying to
>>> accomplish? block/shutdown that switch that is attempting to
>>> become root?
>>>
>>>
>>>
>>> ----- Original Message -----
>>> From: "Brad Haas" <bradh_at_presidio.com>
>>> To: "Ronnie Angello" <ronnie.angello_at_gmail.com>, dls152_at_cox.net
>>> Cc: ccielab_at_groupstudy.com
>>> Sent: Tuesday, January 18, 2011 11:36:17 AM
>>> Subject: RE: Spanning-tree
>>>
>>> I second that... rootguard
>>>
>>> _______________________________________________________________________________
 

>>> Bradford Haas | Unified Communications Architect | CCIE 17887,
>>> CCVP, CCDP, MCSE | Northeast | Presidio Networked Solutions
>>> 10 Sixth Road, Woburn MA 01801 | bhaas_at_presidio.com
>>> D: 781.638.2258 | C: 781-223-1867 | www.presidio.com
>>> Fax: 781.970-1458
>>>
>>>
>>>
>>> -----Original Message-----
>>> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On
>>> Behalf Of Ronnie Angello
>>> Sent: Tuesday, January 18, 2011 11:30 AM
>>> To: dls152_at_cox.net
>>> Cc: ccielab_at_groupstudy.com
>>> Subject: Re: Spanning-tree
>>>
>>> Root Guard???
>>>
>>> On Tue, Jan 18, 2011 at 11:07 AM, <dls152_at_cox.net> wrote:
>>>
>>>> Can someone tell me how to prevent switch from becoming root
>>>> without
>>>> using priority command?
>>>>
>>>> Thanks!
>>>>
>>>>
>>>> Blogs and organic groups at http://www.ccie.net
>>>>
>>>> ______________________________________________________________________
 

>>>> _ Subscription information may be found at:
>>>> http://www.groupstudy.com/list/CCIELab.html
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>
>>>
>>> --
>>> Ronald Angello
>>> Senior Network Architect
>>> CCIE 17846
>>> CCDP, CCIP, CCNP
>>>
>>>
>>> Blogs and organic groups at http://www.ccie.net
>>>
>>> _______________________________________________________________________
 

>>> Subscription information may be found at:
>>> http://www.groupstudy.com/list/CCIELab.html
>>>
>>>
>>> Blogs and organic groups at http://www.ccie.net
>>>
>>> _______________________________________________________________________
 

>>> Subscription information may be found at:
>>> http://www.groupstudy.com/list/CCIELab.html
>>>
>>>
>>> Blogs and organic groups at http://www.ccie.net
>>>
>>> _______________________________________________________________________
 

>>> Subscription information may be found at:
>>> http://www.groupstudy.com/list/CCIELab.html
>>>
>>>
>>> Blogs and organic groups at http://www.ccie.net
>>>
>>> _______________________________________________________________________
 

>>> Subscription information may be found at:
>>> http://www.groupstudy.com/list/CCIELab.html
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
 

> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html

Blogs and organic groups at http://www.ccie.net
Received on Wed Jan 19 2011 - 22:39:16 ART