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
Received on Sun Jun 24 2012 - 22:37:50 ART
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