Re: VTP Server and Transparent

From: Narbik Kocharians <narbikk_at_gmail.com>
Date: Sun, 24 Jun 2012 19:35:26 -0700

It will only be cut off if it sees a better bid.

On Sun, Jun 24, 2012 at 7:10 PM, Marko Milivojevic <markom_at_ipexpert.com>wrote:

> But that won't do it. Since in this thread we're way overthinking things,
> if the switch remains cut off from all other switches it will be the root.
> So... let's just disable the stp altogether ;-)
>
> --
> Marko Milivojevic - CCIE #18427
>
> :: This message was sent from a mobile device. I apologize for errors and
> brevity. ::
>
> On Jun 24, 2012, at 16:24, Narbik Kocharians <narbikk_at_gmail.com> wrote:
>
> > To ensure that the switch is always the root.
> >
> > On Sun, Jun 24, 2012 at 12:35 PM, <don.rajaratne_at_gmail.com> wrote:
> >
> >> @Jhon - (vlans here) what vlans? Again is it 1-4094 or 1-1005?
> >>
> >> @Narbik - yeah I got confused as well. Why guard root?
> >> Sent from my BlackBerry.
> >>
> >> -----Original Message-----
> >> From: john matijevic <john.matijevic_at_gmail.com>
> >> Date: Sun, 24 Jun 2012 14:56:12
> >> To: Don Rajaratne<don.rajaratne_at_gmail.com>
> >> Cc: marc abel<marcabel_at_gmail.com>; Jay McMickle<jay.mcmickle_at_yahoo.com
> >;
> >> Cisco certification<ccielab_at_groupstudy.com>
> >> Subject: Re: VTP Server and Transparent
> >>
> >> Good Afternoon Don,
> >>
> >> Thanks for the clarification.
> >> I would use the command spanning-tree root primary command on the
> >> switch(A), or setting the priority option to 1.
> >>
> >> spanning-tree vlan (Vlans Here) root primary
> >>
> >> or by setting the priority value to lower than what is on the other
> >> switches.
> >>
> >> spanning-tree vlan (Vlans Here) priority 1, assuming the other
> >> switches are using the default of 32768, but do a show spanning-tree
> >> summary to verify.
> >>
> >>
> >> sh spanning-tree root to verify configuration.
> >>
> >>
> >>
> http://www.cisco.com/en/US/tech/tk389/tk621/technologies_configuration_example09186a008009467c.shtml
> >>
> >>
> >>
> >> Hope that helps, and again has to be clear for all of us!!!
> >>
> >> Unfortunately, I am using GNS3, and cannot test your scenerio.
> >>
> >> Regards,
> >> John
> >>
> >> On 6/24/12, Don Rajaratne <don.rajaratne_at_gmail.com> wrote:
> >>> Hi Guys,
> >>>
> >>> I really value all your comments and thoughts on this. Thank you.
> >>>
> >>> @Jhon - Its not a complicated scenario. Just say three switches (A,B,C)
> >> are
> >>> interconnected with each other using trunk ports (Mesh), which switch A
> >> is
> >>> the master and B&C are configured for clients.And master is configured
> >> for
> >>> vlan 2,5,13,45,67. Spanning-tree mode rapid-pvst.
> >>>
> >>> If I want switch A to be the root for all the vlans (This may includes
> >>> future adding vlans as well) what would be the best way to configure?
> >>> 1-4094 or 1-1005?
> >>>
> >>> Hope its clear for you now.
> >>>
> >>> Cheers.
> >>>
> >>> Don.
> >>>
> >>> On Sun, Jun 24, 2012 at 10:04 PM, marc abel <marcabel_at_gmail.com>
> wrote:
> >>>
> >>>> I guess we will have to disagree or wait for Don speak back up.
> >>>>
> >>>> If you understand spanning-tree in the context of the CCIE lab you
> know
> >>>> that only switches(bridges) participate in STP. So in this case
> "server"
> >>>> doesn't refer to some external box, but instead refers to the fact
> that
> >>>> the
> >>>> switch is the VTP server.
> >>>>
> >>>> Am I making an assumption? Probably, but I it is an educated
> assumption
> >>>> based on.
> >>>>
> >>>> A. Understanding the protocols he is asking about and how they
> interact.
> >>>> B. Following this list for the last 4 years and seeing similar
> questions
> >>>> asked repeatedly.
> >>>>
> >>>>
> >>>>
> >>>> On Sun, Jun 24, 2012 at 12:44 PM, john matijevic
> >>>> <john.matijevic_at_gmail.com
> >>>>> wrote:
> >>>>
> >>>>> Good Afternoon Marc,
> >>>>>
> >>>>> Here is his original post:
> >>>>>
> >>>>>
> >>>>> "
> >>>>> Hi Guys,
> >>>>>
> >>>>> May be this is a silly one .. :)
> >>>>>
> >>>>> Its like this... Its a vtp server and client scenario. If the
> question
> >>>>> says
> >>>>> the server has to be primary root for all the vlan what is the range
> I
> >>>>> have
> >>>>> to choose? Is it 1-4094? or 1-1005?
> >>>>>
> >>>>> I know only transparent mode supports up to 4094 and server mode only
> >> up
> >>>>> to
> >>>>> 1005. But, I have seen some workbooks have selected 1-4094 even
> though
> >>>>> its
> >>>>> on server mode.Any harm by doing this??
> >>>>>
> >>>>> Thank you all..
> >>>>>
> >>>>> Don
> >>>>>
> >>>>> "
> >>>>>
> >>>>>
> >>>>> Its like this... Its a vtp server and client scenario. If the
> question
> >>>>> says
> >>>>> the server has to be primary root for all the vlan what is the range
> I
> >>>>> have
> >>>>> to choose? Is it 1-4094? or 1-1005?
> >>>>>
> >>>>>
> >>>>> He is asking about a particular question, this question could be
> >>>>> related to another question, we can't assume that it doesn't.
> >>>>>
> >>>>>
> >>>>> Here is your assumption:
> >>>>> The question tells him to make a switch (lets call it SW1) root for
> >>>>> all vlans. This is it, the one single sole requirement. Now this is
> >>>>> it, a pretty straight forward standard spanning tree question. Could
> >>>>> be MST, PVST, etc make no difference(lets assume pvst).
> >>>>>
> >>>>> This is incorrect his question is this:
> >>>>> the server has to be primary root for all the vlan what is the range
> I
> >>>>> have
> >>>>> to choose? Is it 1-4094? or 1-1005?
> >>>>>
> >>>>> again is this a server with a switch inside, what is the scenerio.
> >>>>>
> >>>>> Lets let Don Reply instead of making assumptions of what he did or
> did
> >>>>> not assume.
> >>>>> Again big mistake to assume.
> >>>>>
> >>>>> Regards,
> >>>>> John
> >>>>>
> >>>>>
> >>>>> On 6/24/12, marc abel <marcabel_at_gmail.com> wrote:
> >>>>>> John, I'm not sure what is so vague about his question and the
> >>>>>> topology
> >>>>>> isn't really relevant. You could have 2 switches in your
> >> spanning-tree
> >>>>>> topology or 1000 it makes no difference.
> >>>>>>
> >>>>>> The question tells him to make a switch (lets call it SW1) root for
> >>>>>> all
> >>>>>> vlans. This is it, the one single sole requirement. Now this is it,
> a
> >>>>>> pretty straight forward standard spanning tree question. Could be
> >> MST,
> >>>>>> PVST, etc make no difference(lets assume pvst).
> >>>>>>
> >>>>>> Config SW1:
> >>>>>>
> >>>>>> spanning-tree mode pvst
> >>>>>> spanning-tree vlan ?
> >>>>>>
> >>>>>> Now the "?" is what his question revolves around. Which vlans should
> >>>>>> he
> >>>>>> include do you think? Remember the question states ALL vlans.
> >>>>>>
> >>>>>> Now the wrinkle to his question comes in because of VTP. Because his
> >>>>> switch
> >>>>>> is a VTP server it only supports standard vlans 1-1005. So he has
> two
> >>>>>> options
> >>>>>>
> >>>>>> Option 1 - make his switch the root for only the vlans his switch
> >>>>> supports
> >>>>>>
> >>>>>> spanning-tree vlan 1 - 1005 root primary
> >>>>>>
> >>>>>> Option 2 - make his switch the root for ALL vlans
> >>>>>>
> >>>>>> spanning-tree vlan 1 - 4094 root primary
> >>>>>>
> >>>>>> Which option would Choose? This is the root of his question.
> >>>>>>
> >>>>>> I would choose the second option, because the initial requirement
> did
> >>>>> not
> >>>>>> ask us to make the distinction as to only the vlans the switch
> >>>>>> currently
> >>>>>> supports. The initial question simply asked us to make it root for
> >> ALL
> >>>>>> vlans, which the second one clearly does.
> >>>>>>
> >>>>>> On Sun, Jun 24, 2012 at 12:15 PM, john matijevic
> >>>>>> <john.matijevic_at_gmail.com>wrote:
> >>>>>>
> >>>>>>> Good afternoon Jay,
> >>>>>>>
> >>>>>>> I wouldnt take anything for ganted and assume nothing.
> >>>>>>>
> >>>>>>> What Don is asking is important for eveyone on this list, so that
> we
> >>>>>>> can all try and learn and pass the exam. It's important to
> >> understand
> >>>>>>> what is it that Don is lacking that asks him to post a question
> here
> >>>>>>> on the forum. If the question is ambiguous, or if Don knows more
> >>>>>>> about
> >>>>>>> the scenerio due to diagrams and configurations, he may just have a
> >>>>>>> specific piece that he is uncertain of, but has not given us all
> the
> >>>>>>> full details of the scenerio he is working with.
> >>>>>>>
> >>>>>>> Weather its a spanning-tree or VTP task who knows? Without more
> >>>>>>> detail
> >>>>>>> information it be a mistake to assume anything.
> >>>>>>>
> >>>>>>> This is a dangerous mindset to have is to assume especially when it
> >>>>>>> comes to not only the CCIE lab exam but real world networking, and
> >>>>>>> working with customers/clients.
> >>>>>>>
> >>>>>>> Regards,
> >>>>>>> John
> >>>>>>>
> >>>>>>>
> >>>>>>>
> >>>>>>>
> >>>>>>>
> >>>>>>> On 6/24/12, Jay McMickle <jay.mcmickle_at_yahoo.com> wrote:
> >>>>>>>> This just covers you, no matter what the situation. All VLAN's
> >>>>>>>> means
> >>>>>>>> all
> >>>>>>>> VLAN's, in any situation.
> >>>>>>>>
> >>>>>>>> Regards,
> >>>>>>>> Jay McMickle- CCIE #35355 (R&S)
> >>>>>>>> Sent from iJay
> >>>>>>>>
> >>>>>>>> On Jun 24, 2012, at 12:02 PM, john matijevic <
> >>>>> john.matijevic_at_gmail.com>
> >>>>>>>> wrote:
> >>>>>>>>
> >>>>>>>>> Good Morning Jay,
> >>>>>>>>>
> >>>>>>>>> Please post on how you agree, also post where you got this
> >>>>>>>>> question
> >>>>>>> from?
> >>>>>>>>> Also please be more specific on covers you if it moves to
> >>>>> transparent.
> >>>>>>>>>
> >>>>>>>>> again vague, also please post diagram and configs.
> >>>>>>>>>
> >>>>>>>>> This is a vague question by Don, I apologize to Marc, the
> >> question
> >>>>> is
> >>>>>>>>> directed towards Don.
> >>>>>>>>>
> >>>>>>>>> Regards,
> >>>>>>>>> John
> >>>>>>>>>
> >>>>>>>>> On 6/24/12, Jay McMickle <jay.mcmickle_at_yahoo.com> wrote:
> >>>>>>>>>> I agree: 1-4094. This always covers you if it moves to
> >>>>>>>>>> transparent.
> >>>>>>>>>>
> >>>>>>>>>> Regards,
> >>>>>>>>>> Jay McMickle- CCIE #35355 (R&S)
> >>>>>>>>>> Sent from iJay
> >>>>>>>>>>
> >>>>>>>>>> On Jun 24, 2012, at 9:36 AM, marc abel <marcabel_at_gmail.com>
> >>>>>>>>>> wrote:
> >>>>>>>>>>
> >>>>>>>>>>> I would choose 1-4094.
> >>>>>>>>>>>
> >>>>>>>>>>> On Sun, Jun 24, 2012 at 9:11 AM, Don Rajaratne
> >>>>>>>>>>> <don.rajaratne_at_gmail.com>wrote:
> >>>>>>>>>>>
> >>>>>>>>>>>> Hi Guys,
> >>>>>>>>>>>>
> >>>>>>>>>>>> May be this is a silly one .. :)
> >>>>>>>>>>>>
> >>>>>>>>>>>> Its like this... Its a vtp server and client scenario. If the
> >>>>>>> question
> >>>>>>>>>>>> says
> >>>>>>>>>>>> the server has to be primary root for all the vlan what is the
> >>>>>>>>>>>> range
> >>>>>>> I
> >>>>>>>>>>>> have
> >>>>>>>>>>>> to choose? Is it 1-4094? or 1-1005?
> >>>>>>>>>>>>
> >>>>>>>>>>>> I know only transparent mode supports up to 4094 and server
> >>>>>>>>>>>> mode
> >>>>>>>>>>>> only
> >>>>>>>>>>>> up
> >>>>>>>>>>>> to
> >>>>>>>>>>>> 1005. But, I have seen some workbooks have selected 1-4094
> >> even
> >>>>>>> though
> >>>>>>>>>>>> its
> >>>>>>>>>>>> on server mode.Any harm by doing this??
> >>>>>>>>>>>>
> >>>>>>>>>>>> Thank you all..
> >>>>>>>>>>>>
> >>>>>>>>>>>> Don
> >>>>>>>>>>>>
> >>>>>>>>>>>>
> >>>>>>>>>>>> Blogs and organic groups at http://www.ccie.net
> >>>>>>>>>>>>
> >>>>>>>>>>>>
> >>>>>>>
> >> _______________________________________________________________________
> >>>>>>>>>>>> Subscription information may be found at:
> >>>>>>>>>>>> http://www.groupstudy.com/list/CCIELab.html
> >>>>>>>>>>>>
> >>>>>>>>>>>>
> >>>>>>>>>>>>
> >>>>>>>>>>>>
> >>>>>>>>>>>>
> >>>>>>>>>>>>
> >>>>>>>>>>>>
> >>>>>>>>>>>>
> >>>>>>>>>>>
> >>>>>>>>>>>
> >>>>>>>>>>> --
> >>>>>>>>>>> Marc Abel
> >>>>>>>>>>> CCIE #35470
> >>>>>>>>>>> (Routing and Switching)
> >>>>>>>>>>>
> >>>>>>>>>>>
> >>>>>>>>>>> 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
> >>>>>>>>>>
> >>>>>>>>>>
> >>>>>>>>>>
> >>>>>>>>>>
> >>>>>>>>>>
> >>>>>>>>>>
> >>>>>>>>>>
> >>>>>>>>>>
> >>>>>>>>
> >>>>>>>
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>> --
> >>>>>> Marc Abel
> >>>>>> CCIE #35470
> >>>>>> (Routing and Switching)
> >>>>>>
> >>>>>
> >>>>
> >>>>
> >>>>
> >>>> --
> >>>> Marc Abel
> >>>> CCIE #35470
> >>>> (Routing and Switching)
> >>
> >>
> >> Blogs and organic groups at http://www.ccie.net
> >>
> >> _______________________________________________________________________
> >> Subscription information may be found at:
> >> http://www.groupstudy.com/list/CCIELab.html
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >
> >
> > --
> > *Narbik Kocharians
> > *CCSI#30832, CCIE# 12410 (R&S, SP, Security)
> > *www.MicronicsTraining.com* <http://www.micronicstraining.com/>
> > Sr. Technical Instructor
> > YES! We take Cisco Learning Credits!
> > A Cisco Learning Partner
> >
> >
> > Blogs and organic groups at http://www.ccie.net
> >
> > _______________________________________________________________________
> > Subscription information may be found at:
> > http://www.groupstudy.com/list/CCIELab.html
> >
> >
> >
> >
> >
> >
> >
>

-- 
*Narbik Kocharians
*CCSI#30832, CCIE# 12410 (R&S, SP, Security)
*www.MicronicsTraining.com* <http://www.micronicstraining.com/>
Sr. Technical Instructor
YES! We take Cisco Learning Credits!
A Cisco Learning Partner
Blogs and organic groups at http://www.ccie.net
Received on Sun Jun 24 2012 - 19:35:26 ART

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