From: Carlos G Mendioroz (tron@huapi.ba.ar)
Date: Mon Mar 23 2009 - 15:31:29 ART
I did not mean to keep the result secret!
In fact, I was hoping that someone would test it and share the result.
(like I have done a number of times in the past)
My being wrong ? Sure thing. Absolutely ? Nah...
itsfortarget iwillgetit @ 23/03/2009 13:14 -0200 dixit:
> Hi Mr.Carlos,
> You are absolutely wrong , All doubts can be clear off with the lab testing
> and wide reading. The intention of posts in group is for knowledge sharing
> and discussion, rather keeping mum and testing individually is will not help
> for our growth.
>
> On Sun, Mar 22, 2009 at 12:07 AM, Carlos G Mendioroz <tron@huapi.ba.ar>wrote:
>
>> Guys,
>> I assume you are studying for the test, right ? So how come none has
>> gone and TEST it to see what happens with at least some version of IOS
>> in some switch architecture ? That will put an end to it, as far as
>> "this can/can not work" and go into the more real "this could/could not
>> work" :)
>>
>> Should be a 15 min test, or am I missing something ?
>>
>> -Carlos
>>
>> itsfortarget iwillgetit @ 21/03/2009 9:08 -0200 dixit:
>>> Hi,
>>> But if the VTP domain name is deferent on SW1 and SW2 , the Trunk never
>>> comes up untill you disable DTP.That means that DTP and VTP is related in
>>> some manner.
>>>
>>> On Sat, Mar 21, 2009 at 2:38 PM, prateek reddy <prateek.reddyk@gmail.com
>>> wrote:
>>>
>>>> Hi,
>>>>
>>>> VTP " Vlan Trunking protocol " jus replicates the Vlan database
>> between
>>>> the switches of same domain, and propagates only through trunk links.
>>>>
>>>> Where as DTP " Dynamic Trunking Protocol " places a major role in
>>>> negoiating the states of the links like desirable, auto etc.., and plays
>> a
>>>> key role in establishing trunks after negoiating.
>>>>
>>>> So it is through DTP the negoiation of trunk link happens.
>>>>
>>>> Instead we can hardcode that with the command "switchport mode trunk"
>> but
>>>> still DTP is active. For DTP to stop negoiation we have enter the
>> command "
>>>> switchport nonnegotiate " . This will stop DTP.
>>>>
>>>> so, let assume we have SW1 and SW2 has two links b/w each other on
>> ports
>>>> fa 0/21 & fa 0/22 on both the switches.
>>>>
>>>> *if the configuration is as follows on both interfaces fa 0/21 & fa 0/22
>>>> of SW1 and SW2
>>>>
>>>> switchport trunk encapsulation dot1q
>>>> switchport mode trunk
>>>> switchport nonegotiate
>>>>
>>>> still fa 0/21 and fa 0/22 will be trunks, and DTP is truned of, on
>> those
>>>> links...
>>>>
>>>> even then VTP can propogate from SW1 to SW2 through these trunk links...
>>>>
>>>> so VTP is independent of DTP.*
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> On Sat, Mar 21, 2009 at 4:14 PM, itsfortarget iwillgetit <
>>>> itsfortarget@gmail.com> wrote:
>>>>
>>>>> Dear Experts,
>>>>> Please let me know is there any correlation between DTP and VTP. If DTP
>>>>> is disabled will |VTP packet propagated among the switches ?
>>>>>
>>>>>
>>>>> Blogs and organic groups at http://www.ccie.net
>>>>>
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>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>> --
>>>> With Regards,
>>>> K.V.Madhu Prateek Reddy.
>>>
>>> Blogs and organic groups at http://www.ccie.net
>>>
>>> _______________________________________________________________________
>>> Subscription information may be found at:
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>>>
>>>
>>>
>>>
>>>
>>>
>>>
>> --
>> Carlos G Mendioroz <tron@huapi.ba.ar> LW7 EQI Argentina
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
>
>
>
>
>
>
>
>
-- Carlos G Mendioroz <tron@huapi.ba.ar> LW7 EQI ArgentinaBlogs and organic groups at http://www.ccie.net
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