Re: Mind Games - MST

Joe,
Any update on this?

I did kit get the change to lab it in these days but I'm curious to know
how it's going to end with these couple of tasks.

Thanks

@ccie99999
Il giorno 17/ott/2012 05:44, "Brian Dennis" <bdennis_at_ine.com> ha scritto:

> That's an odd question since a switch can't run "802.1W". It's 802.1w.
> The lower case means it's an amendment to an existing standard. 802.1w
> was incorporated into 802.1D-2004 when what we call "IEEE" or "legacy STP"
> was deprecated. Yikes then you had 802.1S when it's 802.1s! ;-) Please
> tell me it's just a cut and paste error and wasn't like that in the
> material you are referencing ;-)
>
> --
> Brian Dennis, CCIEx5 #2210 (R&S/ISP-Dial/Security/SP/Voice)
> bdennis_at_ine.com
>
> INE, Inc.
> http://www.INE.com
>
>
>
> On 10/16/12 11:59 AM, "Joe Sanchez" <marco207p_at_gmail.com> wrote:
>
> >All,
> >
> >
> >I really hate questions like this, hence the reason I have problems with
> >the CCIE lab.
> >Help me understand this supposedly easy question.
> >
> >s1 =====19/20===== s2
> > || ||
> > || ||
> >21/22 21/22
> > || ||
> > || ||
> >s3=====19/20======s4
> >
> >
> >*Task 7.1*
> >
> >Due to large number of VLANS that exist within the current network, the
> >decision has been taken to migrate from 802.1 W spanning tree to 802.1S
> >across all switches. Configure 802.1S spanning tree configuration with *3
> >instances* as follows:
> >
> >Region Name: CCIE
> >Revision: 10
> >*Instance 3* -- All other VLANs
> >Instance 1 -- VLAN 10 and 12
> >Instance 2 -- VLAN 11 and 13
> >
> >My Question ???? :
> >Do you create;
> >instance 1
> >instance 2
> >instance 3
> >
> >
> >*Task 7.2*
> >With 3560-1 as the core connected switch using 802.1S spanning-tree,
> >perform *traffic balancing* so that all traffic for VLANs contained in
> >Instance 1 is sent out of ports fa0/19 and fa0/20, Instance 2 is sent out
> >of portFa0/21 and Fa0/22, and *Instance 0 must not be load balanced*.
> >
> >Use the port-priority command on 3560-1 to alter the path that traffic
> >takes on switches 3560-2, 3560-3, and 3560-4 using interface cost.
> >Ensure 3560-1 is the root switch for all instances.
> >
> >My Question ???? :
> >Based on Task 7.1, the first part of this task 7.2 would lead you into
> >only creating instance 2, & instance 1 and leaving instance 0 as the
> >All-other-VLANs? I would understand that if the put that CIST must be
> >compatible, this would require me to use instance 0 for all the other
> >VLANs, but this is not stated in the question so I'm again overreading,
> >not
> >reading enough or something.
> >
> >The second part of this task is confusing: What does this want you to do.
> >"apply port-priority only on Sw1, and using Cost on SW2-SW3-SW4"
> >
> >
> >
> >
> >Sorry, but I really hate the type of language or lack thereof Cisco uses
> >on
> >the CCIE LAB.
> >
> >Thanks,
> >JS
> >
> >
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Received on Thu Oct 18 2012 - 20:09:32 ART