OSPFv3 Edge Mode is a subset of OSPFv3 available on platforms with an Advanced Edge or Base license.
At most, four Active OSPFv3 VLAN interfaces are permitted. There is no restriction on the number of Passive interfaces.
The OSPFv3 Priority on VLANs is 0, and is not configurable. This prevents the system from acting as a DR or BDR.