With the presence of VxLAN multisite feature, does OTV still have advantages over VxLAN? As I know the OTV could be use as better solution for DCI; But VxLAN multisite has introduced some great features that give us more control over BUM traffic in DCI environment.
This is a great discussion.
My big concern about VXLAN over wan links is the MTU.
Yves Louis written a great article about this topic. Worth reading.