Try:
spanning-tree
spanning-tree mode rpvst
It fails for me every time.
Even with "deploy solution > Add and Remove configuration" I always get:
Cannot configure the rpvst mode, disable spanning-tree to configure (or change) the mode., Invalid input: spanning-tree
If I set spanning tree mode on switches CLI, it will also fail. I must do the following instead:
no spanning-tree
spanning-tree mode rpvst
spanning-tree
But them as soon as I get "spanning-tree mode rpvst" on my configs, NetEdit becomes worthless. Can't do anything with it.
I always have to remove that line, validate and commit the plan, and go back to the switches and reapply the spanning tree mode.
I'm getting this error even with a clean install of NetEdit 2.0.2 and a bare 6300M config (AOSCX 10.04.0030).