Re: MSTP Revision Number

From: Narbik Kocharians (narbikk@gmail.com)
Date: Sun Aug 17 2008 - 03:25:44 ART

When you look at the new VSS blades for 6500 series and/or stackable 3750s
you wonder when will Spanning tree go out all together.

On Sat, Aug 16, 2008 at 7:14 PM, Joseph Brunner <joe@affirmedsystems.com>wrote:

> A better question is who the hell in 2008 is designing a network with large
> spanning-tree's that require the MSTP functionality?
>
> I generally create vlans only locally on a switch for intra-switch
> isolation
> of traffic, then create EIGRP routed ports, either routed layer 3
> interfaces, or layer 3 port channels...
>
> -Joe
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> shiran guez
> Sent: Saturday, August 16, 2008 1:43 AM
> To: Hobbs
> Cc: Anthony Sequeira; Cisco certification
> Subject: Re: MSTP Revision Number
>
> Hi Anthony
>
> the cisco press explenation looks like boolshit, as I do not think any one
> in there right mind will go trough there all network and will reset there
> revision number if they did a change, personally this is somthing I am
> setting only once just to make sure all match and that is it.
>
> as I see it there is no other rational behind that, they all need to match
> in your spanning tree domain.
>
>
>
> On 8/16/08, Hobbs <deadheadblues@gmail.com> wrote:
> >
> > This is from the cisco press bcmsn book page 278:
> >
> > "The configuration revision number gives you a means of tracking changes
> > to the MST region configuration. Each time you make changes to the
> > configuration, you should increase the number by one. Remember that the
> > region configuration (including the revision number) must match on all
> > switches in the region. Therefore, you also need to update the revision
> > numbers on the other switches to match."
> >
> > On Tue, Aug 12, 2008 at 4:29 PM, Anthony Sequeira <
> > Anthony_Sequeira@skillsoft.com> wrote:
> >
> > > A student asked me today about the reasoning behind this third
> > > configuration component that must match between MSTP devices. He was
> > > curious about the rationale behind it, when it would seem that matching
> > > domain names and VLAN/instance tables would be enough.
> > >
> > >
> > >
> > > Has anyone seen the rationale documented? My guess would be to
> > > facilitate a reconfiguration of the topology...
> > >
> > >
> > >
> > > Anthony J Sequeira
> > >
> > > #15626
> > >
> > >
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> >
> >
> >
> >
> >
>
>
> --
> Shiran Guez
> MCSE CCNP NCE1 CCIE #20572
> http://cciep3.blogspot.com
> http://www.linkedin.com/in/cciep3
>
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-- 
Narbik Kocharians
CCSI#30832, CCIE# 12410 (R&S, SP, Security)
www.MicronicsTraining
www.Net-Workbooks.com <http://www.net-workbooks.com/>
Sr. Technical Instructor

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