[c-nsp] Spanning Tree works great - except when it doesn't

[Antoine Monnier]

Regarding switches, what about the WS-C2960X-48TDL-RF; 3357$ list price. It
is the refurbished version of WS-C2960X-48TD-L (5595$ list price).
48 copper gig ports and 2x SFP+ port for 10G uplink
No real-life experience with the 2960X in general though.

On Thu, Oct 15, 2015 at 4:27 PM, Chris Hunt <dharmachris at gmail.com> wrote:

> Nice one Nick.  A three pointer from WAY outside the box..
> -Chris
>
> On 10/15/2015 4:56 AM, Patrick M. Hausen wrote:
> > Hi, Nick,
> >
> >> Am 15.10.2015 um 13:43 schrieb Nick Cutting <ncutting at edgetg.co.uk>:
> >> I came across a curly one like this a few months back - turned out the
> STP handling of native VLan frames VS a non-created but configured native
> vlan on the downstream switch port.
> >> The downstream switchport was also configured for native vlan of 999 -
> BUT vlan999 was not created in the vlan database so defaulted to expecting
> STP frames untagged I think - it was something like that.
> > You nailed it! for some reason that I now need to investigate
> > I do not have VLAN 999 in my VLAN database.
> >
> > *argh*
> >
> > Thanks, everyone.
> > Patrick
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