[c-nsp] pvst and mst

[David J. Hughes]

 From our experience, dodge MST.  Rapid PVST can happily co-exist with 
"standard" PVST so your legacy Cisco switches will be well supported.  
Migration from PVST to RPVST is a much more pleasant experience (and a 
lot easier to revert if it all goes pear shaped).


David
...


On 17/03/2005, at 11:16 PM, Alexander Koch wrote:

> Hello folks,
>
> hopefully someone can clue me in that knows the whole story.
>
> We have a mixture of 3508 and 2950 Cisco switches in some
> sports of our network and the number of VLANs increased a
> lot lately. Now, the 3508 cannot do MST or rapid-pvst if I
> am not mistaken. That being said I have basically two Q's:
>
> 1. Can psvt and mst co- exist? I get told they can, it has
> to do with setting all ports (default) to portfast except
> the trunks, and then mst and pvst can live fine with each
> other. Obviously we need that thing to work with the 3508.
>
> 2. Is there a sane way to switch from pvst to mst, without
> losing management completely? ,-) It probably is related
> to the 1st question, yes, but how does one migrate from a
> to b here the easiest way?