[c-nsp] Maximum spannig tree instances

[Jon Lewis]

On Tue, 14 Jul 2009, Geoffrey Pendery wrote:

> "I've wondered about that...if we were to move to MST, we're going to
> have to assign every VLAN to an MST instance, which could get messy."
>
> That's exactly why I was warning about the 16/64 instance limit.  This
> was my mindset when moving from PVST to MST, and I suspect there are
> many others out there thinking this way.  But if you have more than 64
> VLANs, you can't do that.  You'll have to look at their topology and

That's not what I meant.  I just meant we'd have to decide which instance 
(of likely just a few of them) to assign every VLAN to...as every VLAN has 
to be assigned to some instance.  I should setup a lab of switches again 
and play around with MST.  IIRC, the docs I've read about MST on cisco.com 
generally split up the VLANs between MST instances 2 and 3.

----------------------------------------------------------------------
  Jon Lewis                   |  I route
  Senior Network Engineer     |  therefore you are
  Atlantic Net                |
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