Hi 

While building the STP topology on the basis of the VLT-domain#1 (two S4148T-ON, OS10), I faced a lot of issues because of contradicting information provided in the OS10 Enterprise Edition User Guide:

- VLT domain priority (4096do not override Switch default STP priority (32768: Default priority). STP continues building it own tree on the basis of the default priority. VLT does not play a significant role in building the tree and, looks like, STP convergence happens without VLT participation.

- the command mentioned in the User Guide (spanning-tree priority <priority-value>) is not accepted. The workaround is to change the global switch priority with the command "spanning-tree rstp priority <value> (even if I use rapid-pvst).

Could any expert in this field explain the above mentioned findings? What could be wrong with my understanding of the Dell networks? 

thanks in advance!

Vlad