[c-nsp] Divide large PVST domain?

[Dale W. Carder]

You could deploy rapid spanning tree.  It does not care about diameter,
instead the max-age effectively defines your upper bound.

Dale

Thus spake Victor Sudakov (vas at mpeks.tomsk.su) on Tue, Jul 08, 2014 at 04:09:06PM +0700:
> Colleagues,
> 
> I have a train of about 20 C3560X switches connected successively. 
> I know such a diameter is not good for STP, however, when I place the
> root bridge in the middle of the train, PVST still works more or
> less reliably.
> 
> However, if I wanted to divide this single STP domain into several
> smaller ones, which way is best?
> 
> I can define three geographical areas between which no loop is
> physically possible and which cannot have any redundant links between
> one another.
> 
> Should I just configure a bpdufilter on the border switches to
> separate the areas, or is there a smarter way, maybe going for MST
> instead of PVST?
> 
> Thanks in advance for any input.
> 
> 
> -- 
> Victor Sudakov,  VAS4-RIPE, VAS47-RIPN
> sip:sudakov at sibptus.tomsk.ru
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