From: itsfortarget iwillgetit (itsfortarget@gmail.com)
Date: Mon Mar 23 2009 - 13:14:15 ART
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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> >>>
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> >>>
> >>>
> >>
> >> --
> >> With Regards,
> >> K.V.Madhu Prateek Reddy.
> >
> >
> > Blogs and organic groups at http://www.ccie.net
> >
> > _______________________________________________________________________
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> >
> >
> >
> >
> >
> >
> >
> >
>
> --
> Carlos G Mendioroz <tron@huapi.ba.ar> LW7 EQI Argentina
Blogs and organic groups at http://www.ccie.net
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