One thing that does worry me, the Meraki's are running RSTP and the Catlyst C9300 (which are the core for some of the sites) are running MSTP (This was confirmed by Meraki Support).  Therefore even though my VLAN is only used on the P2P link, will it still be calculated in the STP algorithm?   I did hear that RSTP (and potentially) RPVST are coming out soon for the Catalysts (I am managing these via the Meraki dashboard).     Thanks   ... View more