Re: Basic q regarding STP initial convergence

Never mind, after thinking about it I know the answer ;)
Posted prematurely.

2009/8/8 Danshtr <danshtr_at_gmail.com>

> What will happen when you boot all your switches at the same time?
>
> Best regards,
> Dan
>
>
>
> On Sat, Aug 8, 2009 at 4:25 PM, Roy Waterman <roy.waterman_at_gmail.com>wrote:
>
>> Hi all
>> In several texts I've read that switches upon convergence each think they
>> are the root bridge AND send config pdus out all ports.
>> However in Cisco's implementation, with the intial blocking state being 20
>> secs, and having the ability to only receive config pdus from neighboring
>> switches,
>> while each switch upon initial convergence may THINK they are the root
>> bridge is it true that in general they do not have a chance to advertise
>> that as a result of possibly receiving a better bpdu from a neighboring
>> switch?
>>
>> Plus, was the initial 20 sec blocking state proposed by Cisco to actually
>> allow switches enough time to learn the identity of the root bridge before
>> sending bpdus of their own?
>>
>> Please advise.
>>
>> --
>> Regards
>> Roy
>>
>>
>> Blogs and organic groups at http://www.ccie.net
>>
>> _______________________________________________________________________
>> Subscription information may be found at:
>> http://www.groupstudy.com/list/CCIELab.html
>>
>>
>>
>>
>>
>>
>>
>>
>

-- 
Regards
Roy
Blogs and organic groups at http://www.ccie.net