[c-nsp] STP and PVST..

Scott Granados scott at granados-llc.net
Thu Apr 20 10:27:53 EDT 2017


As I recall and I’m happy to be corrected but when you exceed the 253 VLAN limit with PVST the VLANs starting with the 254th added and on revert to RSTP.

> On Apr 20, 2017, at 10:18 AM, Gert Doering <gert at greenie.muc.de> wrote:
> 
> Hi,
> 
> On Thu, Apr 20, 2017 at 12:10:21PM +0000, Scott Granados wrote:
>> Oh boy, I???ve seen that 253 VLAN thing bite a big customer in the
>> back side.  You add number 254 and whammo!
> 
> What exactly happens then?  (We currently only use juniper at the edge,
> where no single switch has more than ~40-50 VLANs, so the risk has
> been small :-) )
> 
> gert
> --
> USENET is *not* the non-clickable part of WWW!
>                                                           //www.muc.de/~gert/
> Gert Doering - Munich, Germany                             gert at greenie.muc.de
> fax: +49-89-35655025                        gert at net.informatik.tu-muenchen.de

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